Sepam series 20 Sepam series 40 - POWERLAB

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Selection table Sepam series 40 Functions Type of Sepam Substation Transformer Motor Generator Protection ANSI code S40 S41 S42 T40 T42 M41 G40 Phase overcurrent 50/51 4 4 4 4 4 4 4 Voltage-restrained phase overcurrent 50V/51V 1 Earth fault, 50N/51N 4 4 4 4 4 4 4 sensitive earth fault 50G/51G Breaker failure 50BF 1 1 1 1 1 1 1 Negative sequence / unbalance 46 2 2 2 2 2 2 2 Directional phase overcurrent 67 2 2 Directional earth fault 67N/67NC 2 2 2 2 Directional active overpower 32P 1 1 1 1 Directional reactive overpower 32Q/40 1 1 Thermal overload 49RMS 2 2 2 2 Phase undercurrent 37 1 Excessive starting time, locked rotor 48/51LR/14 1 Starts per hour 66 1 Positive sequence undervoltage 27D 2 Remanent undervoltage 27R 1 Undervoltage (3) 27/27S 2 2 2 2 2 2 2 Overvoltage (3) 59 2 2 2 2 2 2 2 Neutral voltage displacement 59N 2 2 2 2 2 2 2 Negative sequence overvoltage 47 1 1 1 1 1 1 1 Overfrequency 81H 2 2 2 2 2 2 2 Underfrequency 81L 4 4 4 4 4 4 4 Recloser (4 cycles) 79 v v v Temperature monitoring (8 or 16 RTDs, 2 set points per RTD) 38/49T v v v v Thermostat / Buchholz 26/63 v v Metering Phase current I1, I2, I3 RMS, residual current I0 b b b b b b b Average current I1, I2, I3, peak demand current IM1, IM2, IM3 b b b b b b b Voltage U21, U32, U13, V1, V2, V3, residual voltage V0 b b b b b b b Positive sequence voltage Vd / rotation direction, neg. seq. voltage Vi b b b b b b b Frequency b b b b b b b Active, reactive and apparent power P, Q, S b b b b b b b Peak demand power PM, QM, power factor Calculated active and reactive energy (±W.h, ±var.h) b b b b b b b Active and reactive energy by pulse counting (±W.h, ±var.h) v v v v v v v Temperature v v v v Network and machine diagnosis Tripping context b b b b b b b Tripping current TripI1, TripI2, TripI3, TripI0 b b b b b b b Unbalance ratio / negative sequence current Ii b b b b b b b Phase displacement ϕ0, ϕ1, ϕ2, ϕ3 b b b b b b b Disturbance recording b b b b b b b Thermal capacity used b b b b Remaining operating time before overload tripping b b b b Waiting time after overload tripping b b b b Running hours counter / operating time b b b b Starting current and time b Start inhibit time delay, number of starts before inhibition b Switchgear diagnosis Cumulative breaking current b b b b b b b Trip circuit supervision v v v v v v v Number of operations, operating time, charging time v v v v v v v CT/VT supervision 60FL b b b b b b b Control and monitoring ANSI code Circuit breaker / contactor control (1) 94/69 b b b b b b b Latching / acknowledgment 86 b b b b b b b Logic discrimination 68 v v v v v v v Switching of groups of settings b b b b b b b Annunciation 30 b b b b b b b Logic equation editor b b b b b b b Additional modules 8 temperature sensor inputs - MET148-2 module (2) v v v v 1 low level analog output - MSA141 module v v v v v v v Logic inputs / outputs - MES114/MES114E/MES114F (10I/4O) module v v v v v v v Communication interface - ACE949-2 (2-wire RS 485), ACE959 (4-wire RS 485) or ACE937 (fiber optic) v v v v v v v b standard, v according to parameter setting an MES114/MES114E/MES114F or MET148-2 optional input/output modules (1) For shunt trip or undervoltage trip unit. (2) 2 modules possible. (3) Exclusive choice, phase-to-neutral voltage or phase-to-phase voltage for each of the 2 units. 9
Metering Description Metering functions The values are displayed as primary values with the related units: A, V, Hz,°C,°F, W, … Current b RMS current for each of the 3 phases in the circuit, taking into account harmonics up to at least number 13 b residual current. Average current and peak demand current b average current on each of the 3 phases b 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 b phase-to-neutral voltages V1, V2, V3 b phase-to-phase voltages U21, U32, U13 b positive sequence voltage Vd b residual voltage V0 b negative sequence voltage Vi. Frequency Power Active, reactive and apparent power, power factor (cos ϕ) 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 b 4 accumulated energy counters, calculated according to the currents and voltages measured: active and reactive energy, in each flow direction b 1 to 4 additional accumulated energy counters for the acquisition of active or reactive energy pulses delivered by external counters. Temperature Measurement of the temperature of each sensor. Network diagnosis assistance functions Tripping context Storage of the tripping currents and I0, ld, U21, U32, U13, V0, Vi, Vd, F, P and Q values at the time of the detection of the fault. The values for the last five trips are stored. Tripping current Storage of the 3 phase currents and earth current at the time the Sepam gave the last tripping order, so as to find out the fault current (fault analysis). The values are stored until the next trip. Negative sequence / unbalance Ratio of negative sequence phase current, characteristic of an unbalanced power supply of the equipment to be protected. Phase displacement b variance in phase ϕ1, ϕ2, ϕ3 between phase currents l1, l2, l3 and voltages V1, V2, V3 b variance in phase ϕ0 between residual current and residual voltage. Disturbance recording Recording of sampled values of analog measurement signals and logic states. By parameter setting, it is possible to choose: b the events that will trigger a record b the recording period prior to the occurrence of the event b the number and duration of records (series 40 only). Characteristics Series 20 Series 40 Number of records in COMTRADE format Total duration of a record 2 Adjustable from 1 to 19 86 periods (1.72 s at 50 Hz, 1.43 s at 60 Hz) Number of points per period 12 12 Duration of recording prior to occurrence of the event Recorded data Adjustable from 0 to 85 periods Currents or voltages, logic inputs, pick up and logic output O1 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 rated thermal capacity. 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) has been operating (I > 0.1 Ib). The cumulative value is displayed in hours (0 to 65535 h). Switchgear diagnosis 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 Running total of the 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. ANSI 60FL - CT/VT supervision This function is used to monitor the complete measurement chain: b CT and VT sensors b connection b Sepam analog inputs. Supervision is ensured by: b checking of the consistency of the currents and voltages measured b acquisition of phase or residual voltage transformer protection fuse melting contacts. In the event of current or voltage data loss, the assigned protection functions may be inhibited to avoid any nuisance tripping. 10
Page 1 and 2: Electrical network protection Sepam
Page 3 and 4: Presentation More solutions MT11017
Page 5 and 6: Presentation More solutions More mo
Page 7 and 8: Presentation User-machine interface
Page 9: Selection table Sepam series 20 Fun
Page 13 and 14: Protection Description Current prot
Page 15 and 16: Protection Description Voltage prot
Page 17 and 18: Protection Setting ranges Functions
Page 19 and 20: Connection diagrams Sepam series 20
Page 21 and 22: Connection diagrams Phase current i
Page 23 and 24: Connection diagrams Sepam series 20
Page 25 and 26: Control and monitoring Description
Page 27 and 28: Control and monitoring Logic input
Page 29 and 30: Control and monitoring Annunciation
Page 31 and 32: Communication Description and chara
Page 33 and 34: Optional remote modules Description
Page 35 and 36: Sensors LPCT type current sensors M
Page 37 and 38: Characteristics Size and weight Bas
Page 39 and 40: Characteristics Electrical characte
Page 42 and 43: Order form Breakdown of base units
Page 44 and 45: Order form Order form Sepam series
Page 46: Schneider Electric Industries SAS P

Sepam series 20 Sepam series 40 - POWERLAB

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