Connection schemes Sepam 1000+ series 40 - Trinet

Protection 

and control 

Catalogue 

June 

2001 

Sepam 1000+ Merlin Gerin 

Substation 

Transformer 

Motor 

Busbar 

Get more with the world’s Power & Control specialist

Contents 

Presentation 2 

More solutions 2 

Flexible architecture 5 

User-machine interface 6 

Selection table 8 

Sepam 1000+ series 20 8 

Sepam 1000+ series 40 9 

Metering 10 

Description 10 

Characteristics 11 

Protection function 12 


Setting ranges 14 

Connection schemes 16 

Sepam 1000+ series 20 16 

Sepam 1000+ series 40 17 

Other connection schemes 18 

Control and monitoring 20 


Logic inputs and outputs 21 


Assignment by application Sepam 1000+ series 20 22 

Assignment by application Sepam 1000+ series 40 23 

Optional remote modules 24 


Connections 25 

Sensors 26 

Core balance CTs 26 

Interfaces 27 

Communication 28 

Description and characteristics 28 

Parameters and protection settings 30 


Program logic 31 

Characteristics 32 

Size and weight 32 

Electrical characteristics 34 

Environmental characteristics 35 

Schneider Electric 

1

Presentation 

More solutions 

The Sepam 1000+ family of protection and 

metering units is designed for the operation 

of machines and electrical distribution 

networks of industrial installations and utility 

substations for all levels of voltage. 

It consists of complete, simple and 

reliable solutions, suited to the following 

applications: 

# protection of substations (incomers and 

feeders) 

# protection of transformers 

# protection of motors 

# protection of busbars. 

Sepam 1000+ series 20 

Suitable for common applications, Sepam 1000+ series 20 offers simple 

solutions based on current or voltage metering. 

The Sepam 1000+ series 20 S20, T20 and M20 current units cover applications 

such as the following: 

# protection of substation incomers and feeders against phase-to-phase and 

phase-to-earth short-circuits 

5 16 IDMT tripping curves 

5 adjustable timer hold to detect recurrent faults 

5 switching of groups of setting to adapt to changes in the network configuration 

# protection of overhead lines with reclosers 

# protection of transformers against overloads, with ambient temperaturecompensated 

RMS thermal overload protection with 2 groups of settings for different 

ventilation operating rates 

# protection of motors 

5 against overloads, with ambient temperature-compensated RMS thermal overload 

protection with a cold tripping curve that can be adjusted to fit motor characteristics 

5 against internal faults and load-related faults 

5 with motor starting condition monitoring and machine operation assistance. 

The Sepam 1000+ series 20 B21 and B22 voltage units are suitable for the 

following situations: 

# monitoring of network voltage and frequency 

# loss of mains detection by rate of change of frequency protection for installations 

with local power generation. 

Sepam 1000+ series 40 

Sepam 1000+ series 40, with its current and voltage metering capabilities, offers 

high-performing solutions for more demanding applications. 

Sepam 1000+ series 40 units perform the following functions in addition to those 

performed by Sepam 1000+ series 20: 

# protection of networks with parallel incomers by directional protection 

# directional earth fault protection suitable for all earthing systems, impedant, 

isolated or compensated neutral 

# all the necessary electrical measurements: phase and residual current, phase-toneutral, 

phase-to-phase and residual voltage, frequency, power and energy, … 

# comprehensive network diagnosis assistance: 20 seconds of disturbance 

recording, detailed history of the last 200 alarms, storage of contexts of the last 

5trips 

# adaptation of control functions by a logical equation editor 

# customization of alarm messages to fit each application, and/or in the user's 

language. 

Sepam 1000+ selection guide 

Selection Series 20 Series 40 

criteria 

Measurements I U U I and U I and U I and U 

Specific 

protection 

functions 

Loss of 

mains 

(ROCOF) 

Directional 

earth fault 

Directional 

earth fault and 

phase 

overcurrent 

Applications 

Substation S20 S40 S41 S42 

Transformer T20 T40 T42 

Motor M20 M41 

Busbar B21 B22 

Example : For motor protection and current and voltage measurements, your solution 

is the M41 type Sepam 1000+. 

2 Schneider Electric

Presentation 


More simplicity 

Simple to install 

# no constraints for integration in cubicles due to the compact size of the base units 

and remote installation of optional modules 

# universal auxiliary power supply. 

Simple to commission 

# all the functions are ready to use 

# user-friendly, powerful PC setting software to utilize all the possibilities offered by 

Sepam 1000+. 

Simple to operate 

With the advanced UMI, all local operations are made easier by a clear, complete 

presentation of all the required information in your language. 

Simple to maintain 

# digital unit self-diagnosis and watchdog 

# switchgear diagnosis assistance functions to assess equipment condition and 

schedule preventive maintenance operations: 

5 cumulative breaking current 

5 breaking device operating and charging time. 

More communication 

Modbus communication 

All the data needed for centralized management of your electrical network are 

available with the communication option based on the open, international Modbus 

protocol: 

# measurement and diagnosis values 

# remote indication and time-tagging of events 

# remote control of the installation 

# remote setting of protection functions 

# reading of disturbance recording files. 

Ethernet connection and Webserver 

Sepam 1000+ can be connected to an Ethernet broadband network by Ethernet/ 

Modbus communication gateways. 

With these gateways : 

# Sepam 1000+ can be integrated in any automation and supervisory system based 

on Modbus / TCP/IP multi-master protocol 

# Web pages presenting information provided by Sepam may be consulted via an 

Internet/Intranet browser. 

PowerLogic System 

Sepam 1000+ is a component of PowerLogic System and may naturally be 

associated with SMS centralized industrial and commercial electrical network 

management software. 


3

Presentation 


More modularity 

Sepam 1000+ is available with 2 User Machine Interface (UMI) levels: 

# advanced UMI, with keypad and graphic LCD display 

5 to provide all the data required for local operation of the installation: 

measurements, diagnosis information, alarms, etc. 

5 to set Sepam 1000+ parameters and protection functions 

5 to be understood by all, the screens can be displayed in the user’s language. 

The advanced UMI may be part of the base unit or installed as a remote unit in the 

most convenient location for the user. 

# basic UMI, with signal lamps 

5 no need for local operation 

5 for remotely operated installations. 

In order to adapt to as many situations as possible and allow for subsequent 

upgrading of the installation, Sepam 1000+ may be functionally enhanced at 

any time by the addition of optional modules: 

# logic input/output module with parameterizable program logic 

# communication module 

# temperature sensor module 

# analog output module. 


Presentation 

Flexible architecture 

E54735 

MES108 module 

4 logic outputs, 

4 logic inputs 

(1) 

or MES114 

4 logic outputs, 

10 logic inputs 

(1) 

Sepam 1000+ 

base unit 

with advanced UMI 

ACE949-2 (2-wire) module 

ACE959 (4-wire) module 

communication network 

interface 

(1) 

on I >> 51 Io > 51n Io >> 51n ext 

0 off 

P=2.1 MW 

Q=900 Kvar 

S = 2.3 MVA 

clear 

I on Trip 

reset 

CCA612 

CCA772 

(2) 

I>51 

MERLIN GERIN 

sepam 

(1) 

MSA141 module 

1 analog output 

CCA783 

CCA770 

(2) 

(1) 

MET148 module 

8 temperature 

sensors 

SFT 2841 

parameter setting 

and operating software 

SFT 2826 

disturbance recording 

restoring software 

(1) optional additional module. 

(2) example, the prefabricated cords come in 3 different lengths. 


5

Presentation 

User-machine interface 

E54928 

Sepam 1000+ has two levels of UMI 

(user-machine interface) suited to every 

operating requirement. 

on 

I>51 

I >> 51 

Io > 51N 

Io >> 51N 

ext 

0 off I on Trip 

reset 

Basic UMI 

This UMI includes: 

# 2 signal lamps indicating Sepam 1000+ operating status: 

5 green "on" indicator: device on 

5 red "wrench" indicator: device unavailable (initialization phase or detection of an 

internal failure) 

# 9 parameterizable yellow signal lamps equipped with a standard label (1) 

# "reset" button for clearing faults and resetting 

# 1 connection port for the RS232 link with the PC, the port is protected by a sliding 

cover. 

This UMI offers a low-cost solution for installations that do no require local operation 

(run from a remote monitoring and control system) or to replace electromechanical 

or analog electronic protection devices without any additional operating 

requirements. 

E54929 

Example of basic UMI with standard signal lamp assignment. 

on 

9 

I>51 

I> > 51 

8 

Io > 51N 

7 

Io >> 51N 

Example of advanced UMI with standard signal lamp 

assignment. 

ext 

I1 = 162A 

I2 = 161A 

I3 = 163A 

6 

clear 

5 

0 off 

I on 

reset 

4 

trip 

1 

2 

3 

Advanced UMI 

In addition to the basic UMI functions, this version provides: 

# a "graphic" LCD display with automatic contrast adjustment and user-triggered 

backlighting. It is used to display measurements, parameter/protection settings and 

alarm and operating messages. 

Number of lines, size of characters and symbols according to screens and language 

versions. 

# a 9-key keypad with two operating modes: 

White keys for current operation: 

➀ display of measurements. 

➁ display of switchgear and network diagnosis data. 

➂ display of alarm messages. 

➃ resetting. 

➄ acknowledgment and clearing of alarms. 

Blue keys for parameter setting and protection setting: 

➆ access to protection settings. 

➇ access to Sepam 1000+ parameter settings (2) . 

➈ used to enter the 2 passwords required to change protection and parameter 

settings. 

The “ ↵, ▲, ▼ ” keys (➃, ➄, ➅) are used to navigate in the menus and to scroll and 

accept the values displayed. 

➅ "lamp test" keys: 

switching on sequence of all the signal lamps. 

This UMI is an optimum solution for local operation facilitated by clear legibility, 

content and access to the different data items. 

Remote advanced UMI 

The advanced UMI functions are also available in a remote module that is connected 

to a Sepam 1000+ with a basic UMI (connection by prefabricated cable of different 

lengths).. 

The module is installed on the front panel of the cubicle in the most appropriate 

operating location. 

(1) this removable label may be replaced by a customized label produced using the SFT 2841 

software tool. 

(2) for parameter setting of the program logic, the expert UMI must be used. 


Presentation 

User-machine interface 

Sepam 1000+ series 20: measurements. 

Sepam 1000+ series 20: setting of protection function 50/51. 

Expert UMI 

This UMI is available as a complement to the standard or advanced UMI on the 

screen of a PC equipped with the SFT 2841 software tool and connected to the 

RS 232 link on the front panel of the Sepam (operating in a Windows > V95 or 

NT environment). 

All the data used for the same task are grouped together in the same screen to 

facilitate operation. Menus and icons are used for fast, direct access to the required 

information. 

Current operation 

# display of all metering and operating data 

# display of alarm messages with the time of appearance 

# display of diagnosis data such as: 

5 tripping current 

5 number of switchgear operations and cumulative breaking current 

# display of all protection and parameter settings 

# display of the logic status of inputs, outputs and signal lamps. 

This UMI is the solution suited to occasional local operation for demanding personnel 

who require fast access to all the information. 

Parameter setting – protection setting (1) 

# display and setting of all the parameters of each protection function in the same 

page 

# program logic parameter setting, parameter setting of general installation and 

Sepam data 

# input data may be prepared ahead of time and transferred into the corresponding 

Sepam units in a single operation (downloading function). 

Main functions performed by SFT 2841 : 

# changing of passwords 

# entry of general settings (ratings, integration period, …) 

# entry of protection settings 

# changing of program logic assignments 

# enabling/disabling of functions 

# saving of files. 

Saving 

# protection and parameter setting data may be saved 

# printing of reports is possible as well. 

This UMI may also be used to recover disturbance recording files and provide 

graphic display using the SFT 2826 software tool. 

Operating assistance 

Access from all the screens to a help section which contains all the technical data 

required for Sepam installation and use. 

(1) modes available via 2 passwords (protection setting level, parameter setting level). 


7

Selection table Sepam 1000+ series 20 

Functions 

Type of Sepam 

Substation Transformer Motor Busbar 

Protection ANSI code S20 T20 M20 B21 (5) B22 

Phase overcurrent 50/51 4 4 4 

Earth fault, sensitive earth fault 50N/51N 4 4 4 

Breaker failure 

50BF 

Negative sequence / unbalance 46 1 1 1 

Directional phase overcurrent 67 

Directional earth fault 

67N/67NC 

Active overpower 

32P 

Thermal overload 49RMS 2 2 

Phase undercurrent 37 1 

Locked rotor, excessive starting time 48/51LR 1 

Starts per hour 66 1 

Positive sequence undervoltage 27D/47 2 2 

Remanent undervoltage 27R 1 1 

Phase-to-phase undervoltage 27 2 2 

Phase-to-neutral undervoltage 27S 1 1 

Phase-to-phase overvoltage 59 2 2 

Neutral voltage displacement 59N 2 2 

Negative sequence overvoltage 47 

Overfrequency 81H 1 1 

Underfrequency 81L 2 2 

Rate of change of frequency 81R 1 

Recloser (4 cycles) 79 5 

Thermostat / Buchholz 5 

Temperature monitoring (with MET148, 2 set points per sensor) 38/49T 8 8 

Metering 

Phase current I1, I2, I3 RMS, Residual current Io # # # 

Average current I1, I2, I3, Peak demand phase currents # # # 

Voltage U21, U32, U13, V1, V2, V3, Residual voltage Vo # # 

Positive sequence voltage Vd / rotation direction # # 

Negative sequence voltage Vi 

Frequency # # 

Active and reactive power P and Q, Peak demand P and Q, Power factor 

Active and reactive energy (“Wh, “VARh) 

Temperature measurement 5 5 

Network and machine diagnosis 

Tripping current I1, I2, I3, Io # # # 

Tripping context 

Unbalance ratio / negative sequence current Ii # # # 

Phase angle ϕo, ϕ1, ϕ2, ϕ3 

Disturbance recording # # # # # 

Thermal capacity used # # 

Remaining operating time before overload tripping # # 

Waiting time after overload tripping # # 

Running hours counter / operating time # # 

Starting current and time # 

Start inhibit time delay, number of starts before inhibition # 

Switchgear diagnosis 

Cumulative breaking current # # # 

Trip circuit supervision 5 5 5 

Number of operations, Operating time, Charging time 5 5 5 

CT / VT supervision 

Control and monitoring 

Circuit breaker / contactor control (2) 5 5 5 5 5 

Logic discrimination 5 5 5 

Switching of setting groups # (3) # (3) # (3) 

Program logic parameter setting (Boolean equation editor: AND, OR, …) 

Additional modules 

8 temperature sensor outputs - MET148 module 5 5 

1 low level analog output - MSA141 module 5 5 5 5 5 

Logic inputs and ouputs - MES108 module (4I/4O) or MES114 (10I/4O) 5 5 5 5 5 

RS485 interface - ACE 949-2 (2-wire) or ACE959 (4-wire) module 5 5 5 5 5 

#Ãstandard, 5 according to parameter setting and MES108, MES114 or MET148 input/output module options 

(1) available in 2002. 

(2) for shunt trip unit or undervoltage release coil. 

(3) exclusive choice between logic discrimination and switching from one 2-relay group of settings to another 2-relay group. 

(4) 2 modules possible. 

(5) performs B20 type functions. 


Selection table Sepam 1000+ series 40 

Functions 

Type of Sepam 

Substation Transformer Motor 

Protection Code ANSI S40 S41 S42 (1) T40 (1) T42 (1) M41 (1) 

Phase overcurrent 50/51 4 4 4 4 4 4 

Earth fault, sensitive earth fault 50N/51N 4 4 4 4 4 4 

Breaker failure 50BF 1 (1) 1 (1) 1 1 1 1 

Negative sequence / unbalance 46 2 2 2 2 2 2 

Directional phase overcurrent 67 2 2 

Directional earth fault 67N/67NC 2 2 2 2 

Active overpower 32P 1 (1) 1 1 

Thermal overload 49RMS 2 2 2 

Phase undercurrent 37 1 

Locked rotor, excessive starting time 48/51LR 1 

Starts per hour 66 1 

Positive sequence undervoltage 27D/47 2 

Remanent undervoltage 27R 1 

Phase-to-phase undervoltage 27 (6) 2 2 2 2 2 2 

Phase-to-neutral undervoltage 27S (6) 2 2 2 2 2 2 

Phase-to-phase overvoltage 59 (6) 2 2 2 2 2 2 

Neutral voltage displacement 59N 2 2 2 2 2 2 

Negative sequence overvoltage 47 1 1 1 1 1 1 

Overfrequency 81H 2 2 2 2 2 2 

Underfrequency 81L 4 4 4 4 4 4 

Rate of change of frequency 

81R 

Recloser (4 cycles) 79 5 5 5 

Thermostat / Buchholz 5 5 

Temperature monitoring (with MET148, 2 set points per sensor) 38/49T 8/16 8/16 8/16 

Metering 

Phase current I1, I2, I3 RMS, Residual current Io # # # # # # 

Average current I1, I2, I3, Peak demand phase currents # # # # # # 

Voltage U21, U32, U13, V1, V2, V3, Residual voltage Vo # # # # # # 

Positive sequence voltage Vd / rotation direction # # # # # # 

Negative sequence voltage Vi # # # # # # 

Frequency # # # # # # 

Active and reactive power P and Q, Peak demand P and Q, Power factor # # # # # # 

Active and reactive energy (“Wh, “VARh) # # # # # # 

Temperature measurement 5 5 5 

Network and machine diagnosis 

Tripping current I1, I2, I3, Io # # # # # # 

Tripping context # # # # # # 

Unbalance ratio / negative sequence current Ii # # # # # # 

Phase angle ϕo, ϕ1, ϕ2, ϕ3 # # # # # # 

Disturbance recording # # # # # # 

Thermal capacity used # # # 

Remaining operating time before overload tripping # # # 

Waiting time after overload tripping # # # 

Running hours counter / operating time # # # 

Starting current and time # 

Start inhibit time delay, number of starts before inhibition # 

Switchgear diagnosis 

Cumulative breaking current # # # # # # 

Trip circuit supervision 5 5 5 5 5 5 

Number of operations, Operating time, Charging time 5 5 5 5 5 5 

CT / VT supervision # (1) # (1) # # # # 


Circuit breaker / contactor control (2) # # # # # # 

Logic discrimination 5 5 5 5 5 5 

Switching of setting groups # # # # # # 

Program logic parameter setting (Boolean equation editor: AND, OR, …) # (1) # (1) # # # # 

Additional modules 

8 temperature sensor outputs - MET148 module 5 (4) 5 (4) 5 (4) 

1 low level analog output - MSA141 module 5 (1) 5 (1) 5 5 5 5 

Logic inputs and ouputs - MES108 module (4I/4O) or MES114 (10I/4O) 5 5 5 5 5 5 

RS485 interface - ACE 949-2 (2-wire) or ACE959 (4-wire) module 5 5 5 5 5 5 

# standard, 5Ãaccording to parameter setting and MES108, MES114 or MET148 input/output module options 


(2) for shunt trip unit or undervoltage release coil. 

(3) exclusive choice between logic discrimination and switching from one 2-relay group of settings to another 2-relay group. 

(4) 2 modules possibles. 

(5) performs B20 type functions. 

(6) exclusive choice, phase-to-neutral or phase-to-phase voltage for each of the 2 relays. 


9

Metering 

Description 

Metering fonctions 

The values are displayed as primary values with the 

related units: A,V,Hz,°C,°F, W, … 

Current 

# RMS current for each of the 3 phases in the circuit, 

taking into account harmonics up to number 17 

# residual current. 

Average current and peak demand current 

# average current on each of the 3 phases 

# greatest average current on each of the 3 phases 

(peak demand current). 

The peak demand currents give the current consumed 

at the time of peak loads. 

The average current is calculated over a period that 

may be parameterized from 5 to 60 mn, and may be 

reset to zero. 

Voltage 

# phase-to-neutral voltages V1, V2, V3 

# phase-to-phase voltages U21, U32, U13 

# positive sequence voltage Vd 

# residual voltage Vo 

# negative sequence voltage Vi. 

Frequency 

Power 

Active, reactive and apparent power, power factor (p.f.). 

Peak demand power 

Greatest value of active and reactive power absorbed, 

over the same period as peak demand currents, with 

the possibility of resetting to zero. 

Energy 

Active and reactive energy. A counter for each current 

flow direction. 

Temperature 

Measurement of the temperature of each sensor. 

Network diagnosis 

assistance functions 

Tripping current 

Storage of the 3 phase currents and earth current at the 

time Sepam gave the last tripping order, so as to find 

the fault current (fault analysis). 

The values are stored until the next trip order is given. 

Tripping context 

Storage of the tripping currents and the Io, U21, U32, 

U13, Vo, Vi, Vd, F, P, Q, values at the time of the 

detection of the fault. The values for the last five trips 

are stored. 

Negative sequence / unbalance 

Ratio of negative sequence phase current, 

characteristic of unbalanced power supply of the 

equipment to be protected. 

Phase angles 

# phase angle ϕ1, ϕ2, ϕ3 between phase currents l1, 

l2, l3 and voltages U32, U13, U21 respectively 

# phaseangle ϕo between residual current and 

residual voltage. 

Distrubance recording 

Recording of sampled values of analog measurement signals and logic states. 

Through parameter setting, it is possible to choose: 

# the events that will trigger a record 

# the recording time prior to the occurrence of the event 

# the number and duration of records (series 40 only). 

Characteristics Series 20 Series 40 

Number of records in 

2 Adjustable from 1 to 10 

COMTRADE format 

Total duration of a record 86 periods (1.72 s at 50 Hz , 

1.43 s at 60 Hz) 

Number of points per cycle 12 12 

Duration of recording before the 

occurrence of the event 

Recorded data 

Adjustable from 0 to 85 

periods 

Currents or voltages, logic 

inputs, pick-up 

Adjustable from 1 s to 10 s 

The total of all the records plus 

one must not be more than 

20 s at 50 Hz and 16 s at 

60 Hz 

Adjustable from 0 to 99 

periods 

Currents and voltages, logic 

inputs, pick-up, logic outputs 

(O1 to O4) 

Machine operation assistance functions 

Thermal capacity used 

Temperature build-up related to the load. 

It is displayed as a percentage of the nominal machine temperature. 

Remaining operating time before overload tripping 

Indicates the time remaining before tripping by the thermal overload protection 

function. 

Waiting time after overload tripping 

Indicates the time remaining before starting is allowed according to inhibition by the 

thermal protection function. 

Starting current and time / motor overload 

Measurement of the maximum current consumed by the motor during a starting 

sequence or an overload, as well as the duration. 

Start inhibit time delay / number of starts before inhibition 

Indicates the remaining number of starts allowed by the starts per hour protection 

function and, if the number is zero, the waiting time before starting is allowed. 

Running hours counter / operating time 

Cumulative time during which the protected equipment (motor or transformer) is on 

load (I > 0.1 Ib). 

The cumulative value is displayed in hours (0 to 65535 h). 

Switchgear diagnosis assistance functions 

These measurements are to be compared with the data supplied by the switchgear 

manufacturer. 

Cumulative breaking current 

The value displayed may be used to evaluate the state of the circuit breaker poles. 

Number of operations 

Total number of opening operations performed by the device. 

Device operating time 

Operating time, charging time. 

These data may be used to evaluate the state of the pole operating mechanism. 


Metering 

Characteristics 

number (l1, l2, l3) or (l1, l3) 

number (l1, l2, l3) 

General settings (set in the general settings menu) Series 20 and Series 40 Series 40 only 

Frequency 

50 Hz or 60 Hz 

Current sensor 

CT 1 A or 5 A 

rated current In (1) 1 A to 6250 A 

LPCT 


Residual current Io sensor 

CSH120/CSH200 

rated current Ino 2 A, 20 A 5 A 

Core balance CT + ACE990 

rated current Ino (1) 

1 A to 6250 A 

1 A or 5 A CT + CSH30 

rated current Ino (1) 

1 A to 6250 A (Ino = In) 

1 A ou 5 A CT + CSH30 sensitivity x10 

courant nominal Ino (1) 

1 A to 6250 A (Ino = In/10) 

Voltage sensor Primary rated voltage Unp (2) 220 V à 250 kV 

VT 100, 110, 115, 120 V (Uns) V1, V2, V3 

U21, U32 

U21 

VT 200, 230 V 

V1, V2, V3 

Metering functions Ranges Accuracy series 20 (7) Accuracy series 40 (7) MSA141 (3) 

Phase current 0.1 to 1.5 In (1) ± 1 % typically ± 0.5 % typically # 

Residual current 0.1 to 1.5 Ino (1) ± 1 % typically ± 1 % typically # 

Peak demand current (9) 0.1 to 1.5 In (1) ± 1 % typically ± 0.5 % typically 

Phase-to-phase voltages 0.05 to 1.2 Unp (2) ± 1 % typically ± 1 % typically # 

Phase-to-neutral voltages 0.05 to 1.2 Vnp (2) ± 1 % typically ± 1 % typically # 

Positive sequence voltage 0.05 to 1.5 Vnp (2) ± 2 % ± 2 % 

Negative sequence voltage 0.05 to 1.5 Vnp (2) ± 2 % 

Residual voltage 0.015 to 3 Vnp (2) ± 1 % typically ± 5 % 

Frequency 50/60 Hz ± 5 Hz ± 0.05 Hz typically ± 0.02 Hz typically # 

Active power 1.5 % Sn (8) at 999 MW ± 1 % typically # 

Reactive power 1.5 % Sn (8) at 999 Mvar ± 1 % typically # 

Apparent power 1.5 % Sn (8) at 999 MVA ± 1 % typically # 

Power factor -1 to 1 (CAP / IND) ± 1 % typically 

Peak demand active power (9) 1.5 % Sn (8) at 999 MW ± 1 % typically 

Peak demand reactive power (9) 1.5 % Sn (8) at 999 Mvar ± 1 % typically 

Active energy (9) 0 to 2.1 10 8 MW.h ± 1 %, ± 1 digit 

Reactive energy (9) 0 to 2.1 10 8 Mvar.h ± 1 %, ± 1 digit 

Temperature -30 to +200 °C (6) ± 1 °C ± 1 °C # 

Tripping current (9) phase 0.1 to 40 In (1) ± 5 % ± 5 % 

earth 0.1 to 20 Ino (1) ± 5 % ± 5 % 

Neg. sequence / unbalance 10 % to 500 % Ib (5) ± 2 % ± 2 % 

Phase angle ϕ1, ϕ2, ϕ3 0 to 359° ± 2° typically 

Phase angle ϕo 0 to 359° ± 2° typically 

Thermal capacity used (9) 0 to 800 % (4) # 

Operating time (9) 20 to 100 ms ± 1 ms typically ± 1 ms typically 

Charging time (9) 1 to 20 s ± 0.5 s ± 0.5 s 

Running hours counter 0 to 65535 h ± 1 % + 0.5 h ± 1 % + 0.5 h 

MSA141 measurement converter 4-20 mA or 0-20 mA or 0-10 mA ± 0.5 % ± 0.5 % 

(1) In, Ino: CT primary rated current. 

(2) Unp: primary rated phase-to-phase voltage, Vnp: primary phase-to-neutral voltage Vnp=(Unp/√3). 

(3) measurements available in analog format according to parameter setting and MSA141 module. 

(4) 100 % is the thermal capacity used of the equipment being protected under its rated load: I = Ib. 

(5) Ib basis current of the equipment being protected. 

(6) displayed in °C or °F according to parameter setting, typical accuracy from + 20 °C à + 140 °C. 

(7) in reference conditions (IEC 60255-4), typically at In or Un or Sn. 

(8) Sn: apparent power, Sn =√3.In.Un. 

(9) Saved in the event of power outage. 


11

Protection functions 

Description 

Current protection functions 

Phase overcurrent (ANSI 50/51) 

Three-phase protection against overloads and phaseto-phase 

short-circuits. The protection comprises four 

units: 

# definite time (DT) 

# IDMT (16 types of IDMT curves) 

# instantaneous or time-delayed. 

Each unit has a reset time setting that allows: 

# detection of restriking faults 

# coordination with electromechanical relays. 

Earth fault (ANSI 50N/51N or 50G/51G) 

Earth fault protection. 

Earth faults may be detected according to parameter 

setting by: 

# current transformers on the three phases (3I sum) 

# a special core balance CT, CSH120 or CSH200, 

according to the required diameter; this method 

provides the highest sensitivity. The choice of 

parameterizable ratings provides a very wide setting 

range. 

# a current transformer (1 A or 5 A), combined with a 

CSH30 interposing ring CT. 

The protection comprises four units: 


# IDMT (16 types of IDMT curves) 


Each unit has a reset time setting that allows: 



It also has a harmonic 2 restraint in order to ensure 

stability upon transformer energizing. 

Breaker failure (ANSI 50 BF) 

Backup protection that delivers a tripping order to the 

upstream or adjacent breakers should the breaker that 

is being commanded fail to trip, detected by 

measurement of the phase current after a tripping 

order. 

Negative sequence / unbalance (ANSI 46) 

Protection against phase unbalance. 

Sensitive protection to detect 2-phase faults at the end 

of long feeders. 

Protection of equipment against temperature build-up 

caused by an unbalanced supply or the inversion or 

loss of a phase and against phase current unbalance. 

IDMT or definite time characteristics. 

Directional current 

protection functions 

Directional phase overcurrent (ANSI 67) 

This protection function is 3-phase. It comprises a 

phase overcurrent function associated with direction 

detection. It picks up if the phase overcurrent function 

in the chosen direction (line or busbar) is activated for 

at least one of the three phases. It operates as definite 

time or IDMT. It is insensitive to the loss of 

measurement voltage at the time of the fault. 

Directional earth fault (ANSI 67N/67NC) 

It has 2 types of characteristics: 

# type 1, according to Io protection 

# type 2, according to Io magnitude. 

It can operate on impedant, isolated or compensated neutral grounding systems. 

The type 1 units allow the detection of restriking faults. 

The protection includes two units: 


# IDMT (16 types of IDMT curves) (type 2 only) 


The type 2 units have a reset time setting that allows: 



Power protection functions 

Active overpower (ANSI 32P) 

This protection function is activated if the active power flowing in one direction or the 

other according to the application (supplied or absorbed) is greater than the set point. 

Machine protection functions 

Thermal overload (ANSI 49) 

Protection of equipment against thermal damage caused by overloads. 

The thermal capacity used is calculated according to a mathematical model which 

takes into account: 

# RMS current values 

# ambient temperature. 

The function comprises: 

# an adjustable alarm setting 

# an adjustable trip setting 

5 transformer application. 

The model takes into account the transformer heat rise and cooling time constants 

according to whether natural or forced ventilation is used (ONAN, ONAF) via a logic 

input. 

5 motor application. 

The model takes into account: 

- two time constants: the heat rise time constant, used when the motor is running, 

and the cooling time constant, used when the motor is stopped, 

- effect of negative sequence current on rotor heating. 

An additional setting may be used to adapt the protection to the motor thermal 

withstand indicated by the experimental hot and cold curves given by the machine 

manufacturer. 

The thermal protection function may be inhibited by a logic input when this is required 

by the process running conditions. 

Phase undercurrent (ANSI 37) 

Protection of pumps against the consequences of a loss of priming. 

The protection function detects time-delayed current drops that correspond to motor 

no-load operation, characteristic of the loss of pump priming. 

Locked rotor / excessive starting time (ANSI 48/51LR) 

Protection of motors that are liable to start with overloads or insufficient supply 

voltage and/or that drive loads that are liable to jam (e.g. crushers). 

The locked rotor function is an overcurrent protection function that is only confirmed 

after a time delay that corresponds to the normal starting time. 

Starts per hour (ANSI 66) 

Protection against overheating caused by too frequent starts. 

Checking of the number of: 

# starts per hour (or adjustable time period) 

# consecutive starts. 

The protection inhibits motor energizing for a preset time period when the 

permissible limits have been reached. 

Motor restarting may be taken into account by a logic input. 



Description 

Thermostat, Buchholz, gas, pressure, temperature detection 

Protection of transformers against temperature rise and internal faults via logic inputs 

linked to devices integrated in the equipment. 

Temperature monitoring (RTDs) (ANSI 38/49T) 

Protection against abnormal overheating of motor windings and/or bearings 

equipped with RTDs. 

The protection includes 2 independent set points that are adjustable for each RTD. 

Positive sequence undervoltage (ANSI 27D) (ANSI 47) 

Motor protection against malfunctioning due to insufficient or unbalanced supply 

voltage. 

Detection of reverse rotation direction. 

In order for this protection to be used, voltage transformers must be connected to 

Sepam 1000+ to measure U21 and U32. 

Remanent undervoltage (ANSI 27R) 

Monitoring of the clearing of voltage sustained by rotating machines after circuit 

opening. 

The protection is used to prevent transient electrical and mechanical phenomena 

that are caused by fast re-energizing of motors. 

It monitors phase-to-phase voltage U21 or phase-to-neutral voltage V1. 

Voltage protection functions 

Phase-to-phase undervoltage (ANSI 27) 

Protection used either for automated functions (transfer, load shedding) or to protect 

motors against undervoltage. The protection function monitors the drop in each of the 

phase-to-phase voltages being metered. 

Phase-to-neutral undervoltage (ANSI 27S) 

Protection used to detect phase-to-earth faults (isolated neutral systems). 

Phase-to-phase overvoltage (ANSI 59) 

Protection against abnormally high voltage or checking that there is sufficient voltage 

for power supply changeover. It operates with phase-to-phase voltage (series 20 and 

series 40) or with phase-to-neutral voltage (series 40 only). 

Neutral voltage displacement (ANSI 59N) 

Detection of insulation faults in isolated neutral systems by measurement of neutral 

voltage displacement. The protection function is generally associated with 

transformer incomer or busbar protection. 

The function includes 2 set points. 

Negative sequence overvoltage (ANSI 47) 

Protection against phase unbalance resulting from distant faults, a phase inversion 

or unbalanced power supply. 

Frequency protection functions 

Overfrequency (ANSI 81H) 

Protection against abnormally high frequency. 

Underfrequency (ANSI 81L) 

Detection of variances with respect to the rated frequency, in order to maintain a high 

quality power supply. The protection may be used for overall tripping or for load 

shedding. 

Rate of change of frequency / R. O. C. O. F (ANSI 81R) 

Protection used for fast disconnection of a source transmitting power into a power 

network when a fault occurs or to monitor load shedding. 

Recloser 

Automation device used to reclose the circuit breaker after tripping triggered by a 

transient fault on a line (the function includes 4 parameterizable reclosing cycles). 


13


Setting ranges 

General settings (set in the general settings menu) 

Frequency 

50 Hz or 60 Hz 

Current sensor 

CT 1 A or 5 A 

rated current In 

Number (I1, I2, I3) or (I1, I3) 

1 A to 6250 A 

Number (I1, I2, I3) 

LPCT 


Residual current Io sensor 

CSH120/CSH200 

rated current Ino 2 A, 20 A or 5 A (4) 

Core balance CT (2) + ACE990 

rated current Ino 

1 A to 6250 A 

TC 1 A or 5 A + CSH30 


1 A to 6250 A 

TC 1 A or 5 A + CSH30 sensitivity x10 (4) 


1 A to 6250 A (Ino = In/10) 

Voltage sensor Primary rated voltage Unp 220 V to 250 kV 

VT : 100, 110, 115, 120 V 

V1, V2, V3 

(Uns) 

U21, U32 

U21 

VT : 200, 230 V 

V1, V2, V3 

Functions Settings Time delays 

Phase overcurrent 

Tripping curve 

Reset time 

Definite time 

DT 

SIT, LTI, VIT, EIT, UIT (1) 

DT 

RI 

DT 

CEI: SIT/A, LTI/B, VIT/B, EIT/C DT or IDMT 

IEEE: MI (D), VI (E), EI (F) 

DT or IDMT 

IAC: I, VI, EI 

DT or IDMT 

Is set point 0.1 to 24 In Definite time Inst.: 0.05 s to 300 s 

0.1 to 2,4 In IDMT 0.1 s à 12.5 s to 10 Is 

Reset time Definite time (DT: timer hold) Inst.: 0.05 s to 300 s 

IDMT (IDMT: reset time) 

0.5 s to 300 s 

Confirmation (4) 

None 

By negative sequence overvoltage 

By phase-to-phase undervoltage 

Earth fault 


Reset time 

Definite time 

DT 


DT 

RI 

DT 

CEI: SIT/A,LTI/B, VIT/B, EIT/C DT or IDMT 


DT or IDMT 


DT or IDMT 

Iso set point 0.1 to 15 Ino Definite time Inst.: 0.05 s to 300 s 

0.1 to 1 Ino IDMT 0.1 s to 12.5 s at 10 Iso 



0.5 s to 300 s 


Presence of current 

0.2 to 2 In 

Operating time 

0.05 s to 30 s 


Definite time 0.1 to 5 Ib 0.1 s to 300 s 

IDMT 0.1 to 0.5 Ib (Schneider Electric) 0.1 to 1Ib (CEI, IEEE) 0.1 s to 1 s 



CEI: SIT/A, LTI/B, VIT/B, EIT/C (4) 

IEEE: MI (D), VI (E), EI (F) (4) 

Directional phase overcurrent 


Reset time 

Definite time 

DT 


DT 

RI 

DT 

CEI: SIT/A, LTI/B, VIT/B, EIT/C DT or IDMT 


DT or IDMT 

IA: I, VI, EI 

DT or IDMT 

Is set point 0.1 to 24 In Definite time Inst.: 0.05 s to 300 s 

0.1 to 2,4 In IDMT 0.1 s to 12.5 s at 10 Is 



0.5 s to 300 s 

Characteristic angle 30°, 45°, 60° 



Setting ranges 

Functions Settings Time delay 

Directional earth fault, according to Io projection (type 1) 

Characteristic angle -45°, 0°, 15°, 30°, 45°, 60°, 90° 

Iso set point 0,1 to 15 Ino Definite time Inst.: 0.05 s to 300 s 

Vso set point 

2 to 80 % of Un 

Memory time Tomem duration 0; 0.05 s to 300 s 

Vomem validity set point 

0; 2 to 80 % of Un 

Directional earth fault, according to Io magnitude (type 2) 

Characteristic angle -45°, 0°, 15°, 30°, 45°, 60°, 90° 


Reset time 

Definite time 

DT 


DT 

RI 

DT 

CEI, SIT/A,LTI/B, VIT/B, EIT/C DT or IDMT 


DT or IDMT 


DT or IDMT 

Iso set point 0.1 to 15 Ino Definite time Inst.: 0.05 s to 300 s 

0.1 to 1 Ino IDMT 0.1 s to 12.5 s at 10 Iso 

Vso set point 

2 to 80 % of Un 



0.5 s to 300 s 


1 to 120 % of Sn 

Thermal overload Rate 1 Rate 2 

Negative sequence factor 0 - 2.25 - 4.5 - 9 

Time constant Heat rise T1: 5 to 120 mn T1: 5 to 120 mn 

Cooling T2: 5 to 600 mn T2: 5 to 600 mn 

Alarm and trip set points 

50 to 300 % of rated thermal capacity used 

Cold curve change factor 0 to 100 % 

Rate change condition 

by logic input 

by Is setting from 0.25 to 8 Ib 

Maximum equipment temperature 60 to 200 °C 

Phase undercurrent 

0.15 to 1 Ib 0.05 s to 300 s 

Excessive starting time/locked rotor 

0.5 Ib to 5 Ib ST start time 0.5 s to 300 s 

LT and LTS time delays 

0.05 s to 300 s 

Starts per hour 

Starts per period 1 to 60 Period 1 to 6 h 

Consecutive starts 1 to 60 time between starts 0 to 90 mn 

Temperature (RTDs) 

Alarm and trip set points 

0 to 180 °C (or 32 to 356 °F) 

Positive sequence undervoltage 

15 to 60 % de Unp 0.05 s to 300 s 

Remanent undervoltage 

5 to 100 % of Unp 0.05 s to 300 s 

Phase-to-phase undervoltage 

5 to 100 % of Unp, 5 to 100 % of Vnp (4) 0.05 s to 300 s 

Phase-to-neutral undervoltage 

5 to 100 % of Vnp 0.05 s to 300 s 

Overvoltage phase-to-phase phase-to-neutral (4) 

50 to 150 % of Unp 50 to 150 % of Vnp 0.05 s to 300 s 

Neutral voltage displacement 

2 to 80 % of Unp 0.05 s to 300 s 

Negative sequence overvoltage 

1 to 50 % of Unp Inst.: 0.05 s to 300 s 

Overfrequency 

50 to 53 Hz or 60 to 63 Hz 0.1 s to 300 s 

Underfrequency 

45 to 50 Hz or 55 to 60 Hz 0.1 s to 300 s 

Rate of change of frequency 

0.1 to 10 Hz/s Inst.: 0.15 s to 300 s 

Reminder: In current, Unp rated voltage and Ino current are general settings that are made at the time of Sepam commissioning. 

They are given as the values on the measurement transformer primary windings. 

In is the current sensor rated current (CT rating) (adjustable from 1 A to 6250 A). 

Unp is the rated phase-to-phase voltage of the voltage sensor primary windings (adjustable from 220 V to 250 kV). 

Ino is the core balance CT current rating. 

Ib is the current which corresponds to the equipment power rating, adjustable from 0.4 to 1.3 In. 

The current, voltage and frequency values are set by direct entry of the values (resolution: 1 A, 1 V, 1 Hz, 1°C or F). 

(1) tripping as of 1.2 Is. 

(2) with ACE 990 interface for core balance CT with ratio n of 50 to 1500 turns. 

(3) table of In values in Amps: 25, 50, 100, 125, 133, 200, 250, 320, 400, 500, 630, 666, 1000, 1600, 2000, 3150. 

(4) on series 40 only. 


15

Connection schemes Sepam 1000+ series 20 

S20 / T20 / M20 types 

Connection to 1 A / 5 A current sensors 

Connector Type Ref. Cable 

A Screw-on CCA620 1 wire 0.2 to 2.5 mm 2 

(4 AWG 24-12) 

2 wires 0.2 to 1 mm 2 

(4 AWG 24-16) 

A 

Ring lug 

6.35 mm 

CCA622 

B 

Ring lug 

4mm 

CCA630 1.5 to 6 mm 2 

(AWG 16 to AWG 10) 

C RJ45 CCA612 

D RJ45 CCA770: L = 0,6 m 

CCA772: L = 2 m 

CCA774: L = 4 m 

E79273 

L1 

L2 

L3 

4 

1 

5 

2 

6 

3 

B 

O1 

O2 

O3 

O4 

A 

5 

4 

8 

7 

11 

10 

15 

14 

13 

18 

A 

1 

2 

17 

+ / ~ 

– / ~ 

19 

communication 

C 

to 

communication 

network 

interface 

D 

to optional 

modules 

B21 / B22 types 



(4 AWG 24-12) 


(4 AWG 24-16) 

A 

Ring lug CCA622 

6.35 mm 

B Screw-on CCT640 1 wire 0.2 to 2.5 mm 2 

(4 AWG 24-12) 


(4 AWG 24-16) 

C RJ45 CCA612 

D RJ45 CCA770: L = 0,6 m 

CCA772: L = 2 m 

CCA774: L = 4 m 

L1 

L2 

L3 

(1) 

1 

2 

3 

4 

5 

6 

7 

8 

B 

O1 

O2 

O3 

A 

5 

4 

8 

7 

11 

10 

O4 

15 

14 

13 

1 

2 

17 

+ / ~ 

– / ~ 

communication 

C 

to 

communication 

network 

interface 

(1) this type of connection allows the calculation of residual voltage. 

D 

to optional 

modules 


Connection schemes Sepam 1000+ series 40 

S40 / S41 / S42 types 

T40 / T42 / M41 types 

Connection to 1 A / 5 A current sensors 



(4 AWG 24-12) 


(4 AWG 24-16) 

A 

Ring lug 

6.35 mm 

CCA622 

B 

Ring lug 

4mm 

CCA630 1.5 to 6 mm 2 

(AWG 16 to AWG 10) 

C RJ45 CCA612 

D RJ45 CCA770: L = 0,6 m 

CCA772: L = 2 m 

CCA774: L = 4 m 

E Screw-on CCA626 1 wire 0.2 to 2.5 mm 2 

(4 AWG 24-12) 


(4 AWG 24-16) 

E 

Ring lug 

6.35 mm 

CCA627 

E79225 

L1 

L2 

L3 

(2) 

(1) 

1 

2 

3 

5 

6 

4 

1 

5 

2 

6 

3 

18 

E 

B 

A 

O1 

O2 

O3 

O4 

A 

5 

4 

8 

7 

11 

10 

15 

14 

13 

1 

2 

17 

+ / ~ 

– / ~ 

19 

communication 

C 

to 

communication 

network 

interface 

D 

to optional 

modules 

(1) this type of connection allows the calculation of residual voltage. 

(2) accessory for bridging of terminals 3 and 5 supplied with CCA626 connector. 


17

Connection schemes 

Other connection schemes 

Phase current 

L1 L2 L3 

Connection of two 1 A / 5 A current transformers with 

CCA630 connector. 

E79275 

4 

1 

B 

5 

2 

6 

3 

CCA630 

Connection of 3 LPCT type current transformers with 

CCA670 connector (the sensors are equipped with a 

standard connection cable: L = 5 m). 

E79276 

L1 L2 L3 

L1 

B 

L2 

L3 

CCA670 

Residual current 

# connection of CSH30 interposing ring CTs to 1 A: 

current transformers: make 2 turns through the CSH 

primary winding 

# connection of CSH30 interposing ring CTs to 5 A: 

current transformers: make 4 turns through the CSH 

primary winding 

# with series 40, the sensitivity can be multiplied by 10 

by parameter setting with the CSH30 interposing ring 

CT: Ino = In/10. 

E79277 

1 A CT 

or 

5 A CT 

1 A CT: 2 turns 


E79272 



Connection of the ACE990 interface to the core 

balance CT with ratio 1/n with 50 6 n 6 1500 

(n = number of turns on the core balance CT secondary 

winding). 

E79278 

L1 / L2 / L3 

A 

n turns E1 

En 

ACE 

990 

S1 18 

S2 19 


Connection schemes 

Other connection schemes 

Phase voltage (series 20) 

# connection of 1 voltage transformer (does not allow 

use of positive sequence undervoltage or neutral 

voltage displacement protection functions) 

# connection of 2 voltage transformers in V 

arrangement (does not allow use of neutral voltage 

displacement protection function) 

# connection of VTs to CCT640 connector. 

E79280 

L1 

L2 

L3 

1 

2 

3 

4 

5 

6 

7 

8 

B 

L1 

L2 

L3 

1 

2 

3 

4 

5 

6 

7 

8 

B 

Residual voltage (series 20) 

# measurement of phase voltages with 1, 2 or 3 VTs 

and measurement of residual voltage by VT in open 

delta connection 

# connection of VTs to CCT640 connector. 

E79281 

L1 

L2 

L3 

1 

2 

3 

4 

5 

6 

7 

8 

B 

Phase voltage (series 40) 

# connection of 1 voltage transformer (does not allow 

use of phase-to-phase or directional protection 

functions) 

# connection of 2 voltage transformers in V 

arrangement (does not allow use of neutral voltage 

displacement or directional earth fault protection 

functions) 

# connection of VTs directly to connector E on the 

base unit. 

E79228 

L1 

L2 

L3 

1 

2 

3 

5 

6 

E 

E79229 

L1 

L2 

L3 

1 

2 

3 

5 

6 

E 

Residual voltage (series 40) 

# measurement of phase voltages with 1 or 2 VTs and 

measurement of residual voltage by VT in open delta 

connection 

# connection of VTs directly to connector E on the 

base unit. 

E79230 

L1 

L2 

L3 

1 

2 

3 

5 

6 

E 


19


Description 

Sepam 1000+ performs the basic control and 

monitoring functions necessary for the operation of the 

electrical network, thereby reducing the need for 

auxiliary relays. 

The control and monitoring functions may be 

parameterized using the SFT 2841 software tool, 

however each type of Sepam has parameter setting by 

default which allows easier commissioning in the most 

frequent cases of use. 

Two control modes are available 

# integrated circuit breaker control. 

This logical function processes all the circuit breaker 

closing and tripping conditions based on position 

information, external control orders and protection, 

recloser, etc. 

# individual parameter setting of output relays. 

Control of output relays according to an assignment 

matrix. 

Breaking device control 

# Sepam is used to control breaking devices equipped 

with different types of closing and tripping coils: 

5 circuit breakers with shunt trip or undervoltage trip 

units (parameter setting on front panel (1) or via 

SFT 2841) 

5 latching contactors with shunt-trip units. 

Output relay control (standard or fail-safe) may be 

parameterized. 

By default, the program logic is adapted to control a 

circuit breaker with a shunt trip unit. 

# open and close control via the communication link 

# inhibition of closing (ANSI 69) 

Sepam inhibits the closing of the circuit breaker or 

contactor according to the operating conditions. 

# remote tripping 

Remote control of the tripping of the circuit breaker or 

contactor is possible via a logic input or via the 

communication link. 

# inhibition of remote control 

A logic input inhibits the remote closing of the circuit 

breaker via the communication link. 

Switching of setting groups 

Used to switch from one group of (directionnal) phase 

overcurrent and earth fault protection settings to 

another group of settings. Switching may be performed 

by a logic input or via the communication link. 

Inhibition of thermal protection 

Thermal protection tripping may be inhibited via a logic 

input. 

Re-acceleration 

Allows a logic input to take into account the restarting 

of an unstopped motor. 

Logic discrimination (ANSI 68) 

This function allows quick, selective tripping of the 

definite time or IDMT phase overcurrent and earth fault 

protection relays, without requiring the use of time 

intervals between upstream and downstream 

protection devices. The downstream relay transmits a 

blocking input signal if the protection device set points 

are exceeded. 

The upstream relay receives the blocking input signal 

on the logic input used for the inhibition function. A 

saving mechanism ensures the operation of the 

protection in the event of an inhibition link failure. 

Latching / acknowledgment (ANSI 86) 

Output relay latching may be parameterized. Latched tripping orders are stored and 

must be acknowledged in order for the device to be put back into service. The user 

acknowledges via the keypad or remotely via a logic input or the communication link. 

Latching is stored in the event of a power outage. 

Annunciation (ANSI 30) 

Sepam indicates the appearance of alarms by: 

# signal lamps on the front panel 

# messages on the display. 

The addressing of the signal lamps may be parameterized. 

The sequence is as follows (advanced UMI): 

# when an event appears, the signal lamp goes on and the related message is 

displayed 

# the user presses the “clear” key to erase the message 

# after the fault disappears and the “reset”, key is pressed, the signal lamp goes off 

and/or the message is erased and the protection is reset 

# the list of alarm messages remains accessible ( key) and may be erased by 

pressing the “clear” key. 

Remote annunciation 

Used to transfer information via the communication link. 

Information such as circuit breaker position, SF6 fault alarm, etc. 

Trip circuit supervision 

Detects trip circuit faults (shunt trip units). Detects open/closed position discrepancy 

faults (undervoltage trip units). 

Watchdog 

Indicates Sepam unavailability via output O4. 

Output relay testing 

This function is used to activate each output relay (1) . 

Logical parameter setting (Boolean equation editor) 

Used for logical grouping of protection function outputs and logic inputs by the AND, 

OR, NO functions in order to supply new states that can activate a logic output, a 

signal lamp, an alarm message or a remote indication. 

List of main messages (1) 

Functions Messages (2) 

Phase overcurrent PHASE FAULT (4) 

Earth fault 

EARTH FAULT 

Directional phase overcurrent DIR. PHASE FAULT (4) 

Directional earth fault 

DIR. EARTH FAULT 


REVERSE P 

Thermal overload 

THERMAL TRIP 

THERMAL ALARM. 


UNBALANCE I 

Locked rotor 

ROTOR BLOCKING 

Excessive starting time 

LONG START 

Starts per hour 

START INHIBIT 

Undercurrent 

UNDER CURRENT 

Overvoltage OVERVOLTAGE (4) 

Undervoltage UNDERVOLTAGE (4) 

Positive sequence undervoltage 

UNDERVOLTAGE.PS 

Neutral voltage displacement 

Vo FAULT 

Negative sequence overvoltage 

UNBALANCE V 

Overfrequency 

OVER FREQ. 

Underfrequency 

UNDER FREQ. 

Temperature (RTDs) 

OVER TEMP.ALM 

Thermostat (3) 

THERMOS T . ALARM 

Buchholz (3) 

BUCHHOLZ ALARM 

Recloser 

FINAL TRIP 

Recloser 

CLEARED FAULT 


BREAKER FAILURE 

(1) according to type of Sepam and Sepam equipped with advanced UMI, or SFT 2841. 

(2) messages by default, the wording of the messages may be changed (please consult us). 

(3) or gas, pressure, temperature detector (DGPT). 

(4) indication of the faulty phase with series 40. 


Logic inputs and ouputs 

Description 

E79422 

19 

18 

17 

15 

14 

13 

11 

10 

8 

7 

5 

4 

CSH 

2 - / a 

1 + / a 

O4 

O3 

O2 

O1 

E79423 

CSH 

19 

18 

17 

15 

14 

13 

11 

10 

8 

7 

5 

4 

2 - / a 

1 +/a 

O4 

O3 

O2 

O1 

4 output relays on the base unit 

The 4 relay outputs O1, O2, O3 and O4 on the base unit are connected to 

connector A . 

Connector A of the base unit may be either of the following: 

# CCA620 screw type connector 

# CCA622 ring lug connector. 

O1 and O2 are 2 control outputs used by the breaking device control function for: 

# O1: breaking device tripping 

# O2: inhibition of breaking device closing. 

O3 and O4 are indication outputs, only O4 can be activated by the watchdog function. 

CCA620 connector 

(screw-on terminal block for 

straight fittings). 

CCA622 connector 

(terminal block for ring 

terminals). 

E79424 

12 

12 

O14 

11 

11 

O14 

10 

I14 

I26 

10 

I14 

I25 

9 O13 

9 

8 

8 

O13 

6 

5 

O12 

6 

5 

O12 

3 

2 

O11 

3 

2 

O11 

L 

L 

8 

8 I24 

7 

I13 

7 

I13 I23 

I22 

5 

4 

2 

1 

I12 

I11 

E79425 

5 

4 

2 

1 

I12 

I11 I21 

10 

9 

8 

7 

6 

5 

4 

2 

1 

Optionnal input / output modules 

By the addition of an input/output extension module, the 4 outputs on the base unit 

may be completed by either of the following: 

# 4 inputs and 4 outputs with the MES108 module 

# 10 inputs and 4 outputs with the MES114 module. 

An MES module is mounted at the back of the base unit. 

Output characteristics 

# 4 relay outputs O11, O12, O13, O14 

5 O11: control output, used for breaking device closing 

5 O12, O13, O14: indication outputs. 

Input characteristics 

# 4 or 10 potential-free inputs 

5 DC input voltage of 24 V DC to 250 V DC, external DC supply source. 

Connection to screw-type connector 

# 1 wire with cross-section 0.2 à 2.5 mm² (4 AWG 24-12) 

# or 2 wires with cross-section 0.2 à 1 mm² (4 AWG 24-16). 

M 

M 

K 

MES108 module 

(4 inputs / 4 outputs). 

MES114 module 

(10 inputs / 4 outputs). 

E79426 

O1 

A 

5 

4 

D 

+ 

_ 

E79427 

O1 

A 

5 

4 

D 

+ 

_ 

Wiring of the breaking device trip circuit 

Wiring to be used when the "breaker control" function is activated. 

I11 

I12 

M 

1 

2 

4 

5 

I11 

I12 

M 

1 

2 

4 

5 

Wiring for shunt trip coil. 

With monitoring of trip circuit 

and open / closed matching. 

Wiring for undervoltage 

release coil. 

With monitoring of open / 

closed matching. 


21


Assignment by application 

Sepam 1000+ series 20 

Chart of input assignments by application (series 20) 

The use of the preset control and monitoring functions requires exclusive parameter setting and particular wiring of the inputs according to their 

application and the type of Sepam. 

The choice is made on the advanced UMI or expert UMI. 

Functions S20 T20 M20 B21 - B22 Assignment 

Logic inputs 

Open position # # # # I11 

Closed position # # # # I12 

Logic discrimination, receive BL 

# # I13 

Switching of groups of settings A/B 

# # # 

External reset 

External tripping 4 (1) # 

# 

# 

# 

I14 

External tripping 1 (1) 

External network synchronization 


Motor reacceleration 


Buchholz alarm (1) (Buchholz alarm message) 

Rotor rotation detection 

End of charging position 

Thermostat alarm (1) (thermostat alarm message) 

Inhibit remote control (1) 

SF6-1 

SF6-2 

Change of thermal settings 

Inhibit thermal overload 

Inhibit recloser 

# 

# 

# 

# 

# (2) 

# 

# # (3) # 

# # (4) 

# 

# # 

# 

# 

# 

# 

# 

# 

# 

# 

# 

# 

# 

# 

# 

# 

# 

# 

# 

# 

# 

I21 

# I22 

# I23 

# I24 

# 

# 

# 

# 

# 

# 

# 

I25 

# I26 

Logic outputs 

Tripping # # # # O1 

Inhibit closing # # # # O2 

Watchdog # # # # O4 

Closing order # # # # O11 

Nota : all of the logic inputs are available via the communication link and are accessible in the SFT 2841 control matrix for other non predefined applications. 

(1) these inputs have parameter setting with the prefix "NEG" for undervoltage type operation. 

(2) Buchholz/Gas trip message. 

(3) thermostat trip message. 

(4) pressure trip message. 



Assignment by application 

Sepam 1000+ series 40 

Chart of input assignments by application (series 40) 

The functions defined in the chart below are associated with a logic input by configuration. This means that the functions used may be adapted 

to suit needs within the limits of the logic inputs available. They may be reversed for undervoltage type operation. 

Functions S40, S41, S42 T40, T42 M41 Assignment 

Logic inputs 

Open position # # # I11 

Closed position # # # I12 

Logic discrimination, receive BL # # Free 

Switching of groups of settings A/B # # # I13 

External reset # # # Free 

External tripping 1 # # # Free 



Buchholz/gas tripping # Free 

Thermostat tripping # Free 

Pressure tripping # Free 

Buchholz/gas alarm # Free 

Thermostat alarm # Free 

Pressure alarm # Free 

End of charging position # # # Free 

Inhibit remote control # # # Free 

SF6 # # # Free 

Inhibit recloser # Free 

External network synchronization # # # I21 

Inhibit thermal overload # # Free 

Change of thermal settings # # Free 

Motor reacceleration # Free 

Rotor rotation detection # Free 

Inhibit undercurrent protection # Free 

Inhibit closing # # # Free 

Open order # # # Free 

Close order # # # Free 

Logic outputs 

Tripping # # # O1 

Inhibit closing # # # O2 

Watchdog # # # O4 

Closing control order # # # O11 

Nota : all of the logic inputs are available via the communication link and are accessible in the SFT 2841 control matrix for other non predefined applications. 


23

Optional remote modules 

Description 

E79428 

Remote advanced UMI modules 

The DSM303 modules provides the functional features of the fixed advanced UMI. 

Associated with a Sepam 1000+ with a basic UMI, it may be installed on the front 

panel of the cubicle in the most appropriate operating location. 

# reduced depth of 30 mm 

# a single module for each Sepam 1000+ with basic UMI, to be connected by one of 

the prefabricated cords CCA772 or CCA774 (2 or 4 meters). This module may not be 

connected to a Sepam 1000+ that has an integrated advanced UMI. 

on I>>51 Io>51n Io>>51n ext 

0 o f I on Trip 

I1 = 162A 

I2 = 161A 

I3 = 163A 

clear reset 

Remote advanced UMI module. 

E79429 

I✐✎✐✐✐✐✐✐✞ ✐✎✐✐✐✐✐✐✕ ✐✎✐✐✐✐✐✐✑ 

Analog output module 

The MSA141 module converts one of the Sepam 1000+ measurements into an 

analog signal. 

# selection of the measurement to be converted by parameter setting 

# analog signal 0-10 mA, 4-20 mA, 0-20 mA according to parameter setting 

# connection of the analog output to the screw-type connector: 

5 1 wire with cross-section 0.2 à 2.5 mm² (4 AWG 24-12) 

5 or 2 wires with cross-section 0.2 à 1 mm² (4 AWG 24-16) 

# a single module for each Sepam 1000+ base unit, to be connected by one of the 

prefabricated cords CCA770, CCA772 or CCA774 (0.6 or 2 or 4 meters). 

Analog output module. 

E79430 

Temperature sensor module. 

Temperature sensor module 

Temperature measurement (e.g. in transformer or motor windings) is utilized by the 

following protection functions: 

# thermal overload (to take into account the ambient temperature) 

# temperature monitoring. 

With the MET148 module, 8 temperature sensors may be connected. 

# type of temperature sensor Pt100, Ni100 or Ni120 according to parameter setting 

# 3-wire temperature sensors 

# connection of temperature sensors to screw-type connectors: 

5 1 wire with cross-section 0.2 à 2.5 mm² (4 AWG 24-12) 

5 or 2 wires with cross-section 0.2 à 1 mm² (4 AWG 24-16) 

# a single module for each Sepam 1000+ series 20 base unit, to be connected by 

one of the prefabricated cords CCA770, CCA772 ou CCA774 (0.6 ou 2 ou 4 mètres) 

# 2 modules for each Sepam 1000+ series 40 base unit, to be connected by one of 

the prefabricated cords CCA770, CCA772 ou CCA774 (0.6 ou 2 ou 4 mètres). 


Optional remote modules 

Connections 

E79432 

Connection of DSM303 

Remote advanced UMI 

DSM303 

Da 

Wiring inter-modules links 

Different module connection combinations are possible and the modules are 

connected by prefabricated cords which come in 3 different lengths. 

# CCA770 (L = 0.6 m) 

# CCA772 (L = 2 m) 

# CCA774 (L = 4 m). 

The modules are linked by the cords which provide the power supply and act as 

functional links with the Sepam unit ( D connector to Da connector, Dd to Da , ...). 

The DSM303 module may only be connected at the end of the link. 

E79433 

Connection of MSA141 

Remote analog output 

Rc 

1 

2 

3 

A 

+ 

MSA141 

Da 

Dd 

E79435 

MERLIN GERIN 


M ERLIN 

M ERLIN GERIN 

sepam 1000 

sepam 1000 

CCA772 

D 

Da 

GERIN 

CCA770 

Dd 

A 

A 

MSA141 module 

CCA772 

(or CCA774) 

D1 

Connection of MET148 

8 temperature sensor inputs 

Dd 

Da 

B 

DSM303 

remote UMI 

E79434 

n˚1 

n°2 

n°3 

1 

2 

3 

4 

5 

6 

7 

8 

9 

A 

MET148 

B 

1 

2 

3 

4 

5 

6 

7 

8 

9 

n°5 

n°6 

n°7 

MET148 module 

Maximum configuration 

Three modules at the most may be connected to the base unit in accordance with the 

order and maximum lengths of connections specified in the chart below: 

Base Cable Module 1 Cable Module 2 Cable Module 3 

n°4 

10 

11 

12 

10 

11 

12 

n°8 

MERLIN GERIN 

MERLIN 

MERLIN GERIN 

sepam 1 0 

sepam 1 0 

Da 

Series 20 CCA772 MSA141 CCA770 MET148 CCA774 DSM303 

Series 40 CCA772 MSA141 CCA770 MET148 CCA774 DSM303 

Series 40 CCA772 MSA141 CCA770 MET148 CCA772 MET148 

Series 40 CCA772 MET148 CCA770 MET148 CCA774 DSM303 

Dd 


25

Sensors 

Core balance CTs 

E40465 


CSH120, CSH200 core balance CTs 

The specially designed CSH 120 and CSH 200 core balance CTs are used for direct 

residual current measurement. 

The only difference between them is the diameter. 

Mounted directly on cable. 

Mounted on plate or rail. 

Characteristics: 

# inner diameter and weight: 

5 CSH120 : ø 120 mm ; 0.6 kg 

5 CSH200 : ø 200 mm ; 1.4 kg 

# accuracy: ± 5 % at 20 °C 

# transformer ratio: 1/470 

# maximum permissible current: 20 kA - 1 s 

# operating temperature: -25 °C to +70 °C 

# storage temperature: -40 °C to +85 °C 

# drift in accuracy related to temperature: ± 1 % 

# the wiring resistance should be < 4 Ω. 

Dimensions 

D 

E54926 

4 horizontal mounting 

holes dia. 5 

F 

H 

ø A 

K 

B 

J 

E 

4 vertical mounting 

holes dia. 5 

L 

Dimensions (mm) 

A B D E F H J K L 

CSH120 

120 164 44 190 76 40 166 62 35 

CSH200 

200 256 46 274 120 60 257 104 37 


Sensors 

Interfaces 

E44717 


CSH30 

The CSH 30 interposing ring CT is used as an interface when the residual current is 

measured using 1 A or 5 A current transformers. 

It should be installed near the Sepam input (max. distance 2 m). 

# weight: 0.12 kg 

# mounted on symmetrical DIN rail. 

Horizontal CSH30 mounting. 

Vertical CSH30 mounting. 

E54925 

Dimensions 

60 

29 

8 

4 

82 

ø 30 

5 

50 

16 

2 ø 4,5 

2 ø 4,5 

058758RC 

ACE990 

The ACE990 interface is used to adapt measurements between a MV core balance 

CT with a ratio of 1/n (50 6 n 6 1500), and the residual current input of the 

Sepam 1000+. 



# mounted on symmetrical DIN rail 

# accuracy: 

5 amplitude: ± 1 % 

5 phase: < 2° 

# maximum permissible current: 20 kA 1 s (an the primary winding of a MV core 

balance CT with a ratio of 1/50 that does not saturate) 

# operating temperature: -5 °C +55 °C. 

# storage temperature: -25 °C +70 °C. 

Dimensions 

1 

ACE 990 


27

Communication 

Description and characteristics 

E79436 

E79437 

:LWK0RGEXVFRPPXQLFDWLRQ6HSDP 

XQLWVPD\EHFRQQHFWHGWRDUHPRWH 

PRQLWRULQJDQGFRQWUROV\VWHPHTXLSSHG 

ZLWKDPDVWHU0RGEXVFRPPXQLFDWLRQ 

FKDQQHOZLWKDQ56W\SHSK\VLFDOOLQNRU 

ZLWKDQRWKHUOLQNHTXLSSHGZLWKDQ 

DSSURSULDWHFRQYHUWHU. 

7RFRQQHFW6HSDPXQLWVWRDQ 

56 QHWZRUNDQLQWHUIDFHPRGXOHLV 

UHTXLUHG: 

# ACE949-2 LQWHUIDFHIRUZLUH56 

QHWZRUN 

# ACE959 LQWHUIDFHIRUZLUH56 

QHWZRUN. 

ACE949-2, interface for 2-wire RS 485 network. 

Data available 

The data available depend on the type of Sepam. All of the data used by the remote 

monitoring and control system are grouped together so as to be available in a single 

readout. 

Readout of measurements and diagnosis information 

All the values measured by Sepam 1000+ are available from the control station: 

# phase and earth fault currents, peak demand currents 

# phase-to-phase, phase-to-neutral and residual voltages, frequency 

# active and reactive power, peak demand power, energy counters 

# temperatures 

# switchgear diagnosis information: cumulative breaking current, operating time and 

number of operations, circuit breaker recharging time, etc. 

# machine operating assistance information: motor starting time, remaining 

operating time before overload tripping, waiting time after tripping, etc. 

Remote indications 

# reading of digital remote indication information. 

Remote indications are preassigned to the protection or control functions and 

depend on the type of Sepam. 

# reading of the status of 10 logic inputs. 

Remote control orders 

Writing of 16 impulse type remote control orders (TC): 

# in direct mode 

# or in SBO (Select Before Operate) mode). 

The remote control orders are preassigned to the metering, protection or control 

functions and depend on the type of Sepam. 

Time-tagging of events 

# time-tagged information: logic inputs, remote indications 

# time-tagging of events within a ms 

# synchronization by Modbus network or by external signal on logic input I21. 

Remote reading 

# reading of Sepam configuration and identification 

# reading of protection settings (remote reading) 

# writing of protection settings (remote setting). 

Protection setting writing may be inhibited by parameter setting. 

Other functions available via the communication link 

# remote control of the MSA141 optional analog output 

# transfer of disturbance recording data. 

ACE959, interface for 4-wire RS 485 network. 


Type of transmission 

Protocol 

Rate 

Data format 

Response time 

Maximum number of Sepam 1000+ on a 

Modbus network 

RS 485 electrical interface 

Electrical interface power supply 

Type of connection 

Maximum length of RS 485 network with 

standard cable 

(lengths multiplied by 3 with FILECA, with a 

maximum of 1300m) 

Asynchronous serial 

Modbus slave (Jbus profile) 

4800, 9600, 19200, 38400 bauds 

1 start, 8 bits, no parity, 1 stop 

1 start, 8 bits, even parity, 1 stop 

1 start, 8 bits, odd parité, 1 stop 

Less than 15 ms 

25 

ACE949-2, complies with EIA standard 

2-wire RS 485 differential 

ACE959, complies with EIA standard 

4-wire RS 485 differential 

External, by 12 V DC ou 24 V DC auxiliary supply 

Screw terminals and tightening yokes for 

shielding connection 

With 12 V DC distributed power supply to 

interfaces 

320 m with 5 Sepam 1000+ 




With 24 V DC distributed power supply to 

interfaces 






MERLIN GERIN 

MERLIN GERIN 

MERLIN GERIN 

Communication 

Description and characteristics 

E79288 

Connection of the ACE949-2 

Interface for 2-wire RS 485 network 

RS 485 

network 

A 

ACE 949-2 

Implementation of the Modbus network 

A set of adapted accessories is used for fast, dependable implementation of the 

communication network from both the electrical and environmental (electromagnetic 

compatibility) viewpoints. 

V+ 

V- 

L+ 

L- 

E79287 

1 

2 

E79289 

RS 485 

network 

Connection of the ACE959 

Interface for 4-wire RS 485 network 

B 

L- 

L+ 

V- CCA612 

V+ 

to 

C 

Sepam 

ACE959 

A 

(1) 

V- 

V+ 

Rx+ 

Rx- 

Tx+ 

Tx- 

(1) 

V- 

V+ 

Rx+ 

Rx- 

Tx+ 

Tx- 

V- 

V+ 

(2) 

B 

D 

C 

CCA612 

to 

Sepam 

➀ Network connection interface, to be supplied by 12 V DC or 24 V DC distributed 

power supply 

# ACE949-2 for 2-wire RS 485 network 

# or ACE959 for 4-wire RS 485 network. 

➁ CCA612 cord for connection of the connection interface to the C port of the 

Sepam base unit. 

➂ Interface for connection of the RS 485 network to the Modbus master, with 

distributed power supply to the ACE949-2 or ACE959 interfaces and polarization/ 

termination of the communication link 

# ACE909-2, RS 485 / RS 232 converter 

# or ACE919CA (110 V AC or 220 V AC) RS 485/RS485 interface 

# or ACE919CC (24 V DC or 48 V DC) RS 485/RS 485 interface. 

➃ Modbus network cable 

# for 2-wire RS 485 network: two shielded twisted pairs 

(1 RS 485 pair, 1 pair for power supply) 

# for 4-wire RS 485 network: three shielded twisted pairs 

(2 RS 485 pairs, 1 pair for power supply) 

# with tinned copper braiding shielding, coverage: > 65 % 

# characteristic impedance: 120 Ω 

# gauge: AWG 24 

# resistance per unit length: < 100 Ω per km 

# capacitance between conductors: < 60 pF per m 

# capacitance between conductor and shielding: < 100 pF per m 

# maximum length: 1300 m. 

Example of standard cable (for 2-wire RS 485 network): 

# supplier: BELDEN reference: 9842 

# supplier: FILOTEX reference: FMA-2PS. 

High performance cable (for 2-wire RS 485 network): 

# supplier: FILECA reference : F2644-1 (cable distributed by Schneider Electric in 

60 m strand, reference CCR301). 

For more information, refer to the "Sepam – RS 485 network connection guide" 

PCRED399074EN. 

4 

3 

Rx+, Rx-: Sepam receiving (eq IN+, IN-) 

Tx+, Tx-: Sepam transmitting (eq OUT+, OUT-) 

(1) distributed power supply with separate wiring or included in 

the shielded cable (3 pairs). 

(2) terminal block for connection of the distributed power supply 

module. 


29

Parameter and protection 

settings 

Description 

E79438 

E65568 

Trip 

Curve = inverse 

Threshold = 110 A 

Delay = 100 ms 

Example of advanced UMI with standard assignment of signal 

lamps. 

Protection settings 

The Sepam 1000+ can be set: 

# via the front panel when Sepam 1000+ is equipped with the advanced UMI 

function. Function keys (blue) may be used to navigate in the menu and to scroll and 

accept the displayed values. 

Main functions performed: 

5 changing of passwords 

5 entry of general settings 

5 entry of protection settings 

# via a PC equipped with the SFT 2841 software tool connected to the front panel 

for all types of Sepam 1000+. 

Menus guide the user through the different phases of parameter and protection 

setting by a series of windows suited to each operation. 

The SFT 2841 software tool may be used for Sepam 1000+ parameter and 

protection setting in connected or unconnected mode. The unconnected mode 

allows all the parameter settings to be prepared ahead of time and loaded in a single 

operation when the Sepam 1000+ is connected on site (downloading). 

Main functions performed by the SFT 2841: 

# changing of passwords 

# entry of general settings (ratings, integration period, …) 

# entry of protection settings 

# changing of program logic assignments 

# enabling/disabling of file saving functions. 

Example of phase overcurrent protection setting screen 

(series 20). 

E65575 

Program logic parameter setting 

Program logic parameter setting consists mainly of assigning the data transmitted by 

the protection functions to the signal lamps and output relays. This is done by 

entering the data in the "control matrix" of the SFT 2841 software tool. 

Example of parameter setting (serieS 20). 


Parameter and protection 

settings 

Program logic 

Each Sepam 1000+ has program logic by default according to the chosen type 

(S20, S40, T20,…) as well as messages for the different signal lamps. 

The functions are assigned according to the most frequent use of the unit. The 

parameter setting and/or marking may be customized if required using the SFT 2841 

software tool. 

Example of parameter setting: Sepam S20 equipped with the optional MES114 module 

IS (2) Outputs Signal lamps Associated 

functions 

Functions 01 02 03 04 011 012 013 014 L1 L2 L3 L4 L5 L6 L7 L8 L9 

Phase protection 50/51-1 # # # # # # Circuit breaker 

50/51-2 # # # # # # control 

Earth fault protection 50N/51N-1 # # # # # # 

50N/51N-2 # # # # # # 

Unbalance protection 46 # # # # 

Recloser 79 # # 

Open position l11 # # Trip circuit 

Closed position l12 # # supervision 

Receive blocking 

input 

l13 # Logic 

discrimination 

Line disconnector l14 # 

position open (1) 

Tripping by external l21 # # 

protection 

l22 

l23 

l24 

Inhibit remote control l25 # Remote control 

SF6 pressure drop l26 # # 

Transmit blocking # # Logic 

discrimination 

"Pick-up" signal # Disturbance 

recording 

triggering 

Watchdog # # 

Output 

O1 - tripping 

O2 - inhibit closing 

O3 - transmit BI 

O4 - watchdog 

O11 - close order 

O12 - phase fault indication 

O13 - earth fault indication 

O14 - permanent fault 

(1) or disconnected position. 

(2) in service. 

Signal lamps 

L1 - I > 51 

L2 - I >> 51 

L3 - lo > 51N 

L4 - lo >> 51N 

L5 - ext 

L6 - 

L7 - off 

L8 - on 

L9 - Trip 


31


Size and weight 

Sepam 1000+ base unit 

Front panel flush-mounting 

Top view Side view Cutout 

E54753 

E54751 

mounting latch 

E54752 

160 ±0,2 

176 

160 

222 

198 

202 

±0,2 

Mounting shown with advanced UMI and optional 

MES114 module. 

Weight series 20 = 1.2 kg without option. 

1.7 kg with option. 

Weight series 40 = 1.4 kg without option. 

1.9 kg with option. 

31 

98 

Mounting sheet thickness < 3 mm. 

“Terminal block” mounting with AMT840 plate 

Used to mount the Sepam at the back of the 

compartment with access to the connectors on the rear 

panel. 

Mounting associated with the use of the remote 

advanced UMI (DSM303). 

E57704 

6,5 

40 


230 




15 

216 

236 

176 

123 

98 



Size and weight 

DSM303 module 

Cutout dimensions for flush-mounting (mounting plate thickness < 3 mm) 

# weight: 0.3 kg Side view Cutout 

E61212 

E54756 

mounting latch 

144 ±0,2 

bent connector 

117 

96 

117 

98.5 ±0,5 

162 

maximum depth 

with CCA77x 

connection cord : 25 

15 

25 

ACE949-2 module 



ACE959 module 



E61216 

E69528 

144 

88 

30 (1) 

72 

88 

30 (1) 

MET148 module 



MSA141 module 



E54757 

144 

E61225 

144 

88 

88 

30 

(1) 

30 

(1) 

(1) depth with CCA77x connection cord: 70 mm. 


33


Electrical characteristics 

Electrical characteristics 

Analog inputs 

Current transformer input impedance < 0.001 Ω 

1 A or 5 A CT (with CCA630) consumption < 0.001 VA at 1 A 

1 A to 6250 A ratings < 0.025 VA at 5 A 

permanent thermal withstand 3 In 

1 second overload 100 In 

Voltage transformer input impedance > 100 kΩ 

220 V to 250 kV ratings input voltage 100 to 230/√3 V 

permanent thermal withstand 230 V 

1 second overload 480 V 

Temperature sensor input 

Type of temperature sensor Pt 100 Ni 100 / 120 

Isolation from earth no no 

Current injected in sensor 4 mA 4 mA 

Logic inputs 

Voltage 24 to 250 Vcc -20/+10 % (from 19.2 to 275 Vcc) 

Consumption 

3 mA typical 

Switching threshold (2) 

14V typical 

Control output relays (O1, O2, O11 contacts) 

Voltage DC 24 / 48 V DC 127 V DC 220 V DC 

AC (47.5 to 63 Hz) 

100 to 240 V AC 

Continuous current 8 A 8 A 8 A 8 A 

Breaking resistive load 8 / 4 A 0.7 A 0.3 A 

capacity L/R load < 20 ms 6 / 2 A 0.5 A 0.2 A 

L/R load < 40 ms 4 / 1 A 0.2 A 0.1 A 

resistive load - 8 A 

load p.f. > 0.3 - 5 A 

Making 

< 15 A for 200 ms 

capacity 

Indication relay outputs (O3, O4, O12, O13, O14 contacts) 

Voltage DC 24 / 48 V DC 127 V DC 220 V DC 

AC (47.5 to 63 Hz) 

100 to 240 V AC 

Continuous current 2 A 2 A 2 A 2 A 

Breaking L/R load < 20ms 2 / 1 A 0.5 A 0.15 A 

capacity load p.f. > 0.3 - 1 A 

Power supply (series 20) 

range deactivated cons. (1) max. cons. (1) inrush current 

24 V DC -20 % +50 % (19,2 to 36 V DC) 3 to 6 W 7 to 11 W < 10 A for 10 ms 

48 / 250 V DC -20 % +10 % 2 to 4,5 W 6 to 8 W < 10 A for 10 ms 

110 / 240 V AC -20 % +10 % 3 to 9 VA 9 to 15 VA < 15 A for first 

47.5 to 63 Hz half-period 

brownout withstand 

10 ms 

Power supply (series 40) 

range deactivated cons. (1) max. cons. (1) inrush current 

24 / 250 V DC -20 % +10 % 3 to 6 W 7 to 11 W < 28 A 100 µs 

110 / 240 V AC -20 % +10 % 3 to 6 W 9 to 25 W < 28 A 100 µs 

47.5 to 63 Hz 

brownout withstand 

20 ms 

Analog output 

Current 

4 - 20 mA, 0 - 20 mA, 0 - 10 mA 

Load impedance 

< 600 Ω (wiring included) 

Accuracy 0.50 % 

(1) according to configuration. 

(2) for upper values, please consult us. 



Environmental characteristics 

Isolation 

Dielectric withstand at power frequency CEI 60255-5 2 kVrms - 1mn (1) 

1.2 / 50 µs impulse wave CEI 60255-5 5 kV (2) 

Electromagnetic compatibility 

Fast transient bursts CEI 60255-22-4 class IV 

CEI 61000-4-4 

level IV 

1 MHz damped oscillating wave CEI 60255-22-1 class III 

Immunity to radiated fields CEI 61000-4-3 level III 10 V/m 

Immunity to conducted RF disturbances CEI 61000-4-6 level III 10 V 

Electrostatic discharge CEI 60255-22-2 class III 6 kV / 8 kV (contact / air) 

CEI 61000-4-2 level III 

Conducted disturbance emission EN 55022 / CISPR 22 class B on aux. supply (3) 

Disturbing field emission EN 55022 / CISPR 22 class A 

(4) 

Mechanical robustness 

Degree of protection CEI 60529 IP 52 (7) on front panel 

other sides closed 

(except for rear IP 20) 

Vibrations CEI 60255-21-1 class II (5) 

Shocks / jolts CEI 60255-21-2 class II (5) 

Earthquakes CEI 60255-21-3 class II (5) 

Fire resistance CEI 60695-2-1 glow wire 650 °C 

Climatic withstand 

Operation CEI 60068-2-1 et 2 -25 °C à + 70 °C 

Storage CEI 60068-2-1 et 2 -25 °C à +70 °C 

Damp heat CEI 60068-2-3 93 % HR à 40 °C, 

56 days (storage) 

10 days (operation) 

Effect of corrosion CEI-68054-4 class I 

Certification 

CE 

UL508 (6) 

(1) except for communication 1 kVrms. 

(2) except for communication 3 kV common mode, 1 kV differential mode. 

(3) generic EN 50081-1 standard. 

(4) generic EN 50081-2 standard. 

(5) intrinsic withstand of product, excluding support equipment. 

(6) series 40: please consult us. 

(7) a gasket delivered with the product can be used to ensure NEMA12 withstand. 


35

Notes 


Ordering information 


To make it easier to choose and fill in your order form, you may use the Schneider 

Electric Sepam 1000+ electronic catalogue (please consult us) or include this page 

with your order, filling in the requested quantities in the spaces and ticking 

off the boxes to indicate your choices. 

Type of application Sensors Characteristics common to the order (1) 

Series 20 IHM / Power supply Working languages Connectors 

Series 40 

S20 (59620) TC 1A / 5A Standard UMI English / French Screw-on connector 

T20 (59621) CCA630 (59630) 24V (59602) (59609) CCA620 (59668) 

M20 (59622) LPCT 48-250V (59603) 

CCA670 (59631) English / Spanish Ring terminal 

Advanced UMI (59611) CCA622 (59669) 

B21 (59624) TP 24V (59606) 

B22 (59625) CCT640 (59632) 48-250V (59607) 

S40 (59680) TC 1A / 5A Standard UMI English / French Screw-on connector 

S41 (59681) CCA630 (59630) 24-250V (59600) (59615) CCA620 (59668) 

S42 (2) (59682) LPCT CCA626 (59656) 

T40 (2) (59683) CCA670 (59631) Advanced UMI English / Spanish 

T42 (2) (59684) 24-250V (59604) (59616) Ring terminal 

M41 (2) (59685) CCA622 (59669) 

CCA627 (59657) 

(1) only one choice per characteristic (UMI, working language, …). 


Separate modules and optionals accessories 

Quantity Description Reference Item number 

residual current sensors (ø 120) ................................................................................ CSH120 59635 

residual current sensors (ø 200) ................................................................................ CSH200 59636 

interposing ring CT for residual current input ............................................................. CSH30 59634 

core balance CT interface .......................................................................................... ACE990 59672 

4 input + 4 output module ........................................................................................... MES108 59645 

10 input + 4 output module ......................................................................................... MES114 59646 

8 temperature sensor module .................................................................................... MET148 59640 

analog output module ................................................................................................. MSA141 59647 

remote advanced UMI module (1) ................................................................................ DSM303 59608 

mounting frame .......................................................................................................... AMT840 59670 

2-wire RS 485 network interface ................................................................................ ACE949-2 59642 

4-wire RS 485 network interface ................................................................................ ACE959 59643 

communication cable L = 3 m .................................................................................... CCA612 59663 

remote module connection cable L = 0.6 m ............................................................... CCA770 59660 

remote module connection cable L = 2 m ................................................................. CCA772 59661 

remote module connection cable L = 4 m .................................................................. CCA774 59662 

PC parameter setting and operation software kit (2) .................................................... kit SFT2841 59671 

RS 485 / RS 232 converter ........................................................................................ ACE909-2 59648 

RS 485 / RS 485 interface (AC) ................................................................................. ACE919CA 59649 

RS 485 / RS 485 interface (DC) ................................................................................. ACE919CC 59650 

Sepam 1000+ series 20 instruction manual ................. French ................................. PCRED301005FR 59674 

Sepam 1000+ series 20 instruction manual ................. English ................................ PCRED301005EN 59675 

Sepam 1000+ series 40 instruction manual French .... French ................................. PCRED301006FR 59677 

Sepam 1000+ series 20 instruction manual English ... English ................................ PCRED301006EN 59678 

(1) not compatible with Sepam units equipped with integrated advanced UMI. 

(2) including the CCA612 connection cord. 

PCRED301004EN- © 2001 Schneider Electric - All wrights reserved 

Schneider Electric Industries SA 

F - 38050 Grenoble cedex 9 

Tel : +33 (0)4 76 57 60 60 

Telex : merge 320842 F 

http:/www.schneider-electric.com 

As standards, specifications and designs change from time to time, please ask for confirmation 

of the information given in this document. 

This document has been printed on ecological paper. 

Publishing : Schneider Electric 

Production : Schneider Electric 

Printing : Imprimerie des 2 ponts 

PCRED301004EN 

ART.08535

Connection schemes Sepam 1000+ series 40 - Trinet

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