SIL-A Over Current & Earth Fault Relay

Sipariş No : SIL-A

The SIL-A is an overcurrent and earth fault protection relay for primary and secondary distribution with auxiliary power supply (110-230Vac/90-300Vdc, 24-48 Vdc or 24-110 Vdc / 48-230Vac). The current measurement is obtained either by standart current transofrmers /1 or /5, or by special Low Power Current Transformers (LPCT). SIL-A Adaptation B with trip bus protection function is available through configurable inputs and outputs thanks to the programmable logic.

SIL-A, Over Current & Earth Fault Relay, ANSI 50P(2), 50N/G (2)(1), 46, 79, 74 TCS, 50BF, IEC 61850, IEC 103, IEC 104, Modbus, DNP 3.0, 6 Configurable LED,

SIL-A Over Current & Earth Fault Relay

Protection Function	ANSI	Protection Function	ANSI
Three-phase overcurrent protection INST,DT or IDMT	50/51	Current unbalance / broken conductor protection INST	46/46BC
Residual overcurrent protection INST, DT or IDMT	50/51N	Cold Load Pick-Up (CLP) – Trip Bus	68
AC Circuit Brekaer	52	Auto-reclose - 0 -> 1 (5 shots)	27
Breaker failure protection	50BF	Trip Circuit Supervision	74TCS
Low or high-impedance restricted earth-fault / cable end differential protection - I0d>	49/49T	Trip Block
Auto-reclose - 0 -> 1 (5 shots)	79	Current Transformer Supervision	74CT
Restart inhibit / frequent starts	86	Programmable Logic
Undercurrent monitor	37

Auxiliary Power Supply (24-110Vdc / 48-230Vac)
8 configurable LEDs
Direct signalling/control of circuit breaker (52 function) and recloser (79 function)
6 Inputs - 4 Outputs
Oscillographic records, fault reports and non-volatile RAM memory: stores multiple events with date/time even without power supply thanks to its internal RTC
One rear port on the back with the following options respect to protocols:
- IEC60870-103 or Modbus RTU selectable by settings
- IEC 61850, DNP3.0 or IEC 60870-5-104 (depending on the model)
Two rear ports on the back can be used simultaneously:
- ModBus RTU and IEC60870-5-103, IEC 61850, DNP 3.0 or IEC 60870-5-104

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SIL-A Over Current & Earth Fault Relay

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