Connection schemes Sepam 1000+ series 40 - Trinet

Protection functions
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°
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
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
Reset time Definite time (DT: timer hold) Inst.: 0.05 s to 300 s
IDMT (IDMT: reset time)
0.5 s to 300 s
Active overpower
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.
Schneider Electric
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