SIL-A / SIL-C / SIL-S line and feeder protection relays for primary distribution networks
Multifunction SIL-A / SIL-C / SIL-S relays for overcurrent and directional protection of lines, feeders and transformers in primary medium voltage distribution networks. Power supply 24–230 V AC/DC, current is measured from standard CTs /1 and /5.
- Power supply
- 24–230 V AC/DC
- Current measurement
- standard CTs /1 and /5
- Voltage measurement
- from VTs or directly up to 1000 V (SIL-C, SIL-S)
- Functions
- 50/51, 50N/51N, 67/67N (SIL-C), 64REF, 46, 49, 79, 50BF, 74TCS, 86
Price, availability and lead time on request. We help with analogue selection, customs clearance and delivery.
Description
The SIL-C and SIL-S models measure voltage from VTs or directly up to 1000 V. The function set includes 50/51, 50N/51N, 64REF, 46, 49, 79, 50BF, 74TCS and 86, and directional protection 67/67N is available in the SIL-C. The relay logic is programmable, which allows interlocking and schemes to be set up for a specific bay. The range covers protection from a simple feeder to a transformer bay.
Technical specifications
| Power supply | 24–230 V AC/DC |
|---|---|
| Current measurement | standard CTs /1 and /5 |
| Voltage measurement | from VTs or directly up to 1000 V (SIL-C, SIL-S) |
| Functions | 50/51, 50N/51N, 67/67N (SIL-C), 64REF, 46, 49, 79, 50BF, 74TCS, 86 |
| Logic | programmable |
Request a price and lead time
SIL-A / SIL-C / SIL-S line and feeder protection relays for primary distribution networks. We reply within one business day.
Or email sales@usk.ua or call 044 339-50-20.
Customs codes
| UKTZED (Ukraine) | 8536 49 00 90 |
|---|---|
| HS, 6 digits | 8536 49 |
| CN (EU) | 8536 49 00 |
| HTSUS (USA) | 8536 49 00 80 |
| China customs tariff | 8536 49 00 90 |
Codes are for reference: the final code is determined at declaration for the specific model.
Questions and answers
Which model has directional protection?
Directional protection 67/67N is performed by the SIL-C.
Can voltage be connected without a VT?
Yes, the SIL-C and SIL-S measure voltage directly up to 1000 V or from a VT.
What auxiliary supply does the relay need?
The relay is powered from 24–230 V AC/DC.
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