SEL-451 / SEL-352 — circuit breaker protection and bay control
SEL-451 combines substation bay control with high-speed circuit breaker protection and breaker switching-life monitoring. The SEL-352 performs the specialised functions of a breaker failure protection device.
- Current inputs
- 1 A / 5 A
- Voltage inputs
- 0–300 V (phase-to-neutral)
- Protocols
- IEC 61850 Ed.2.1, DNP3, PRP, PTPv2, synchrophasors IEEE C37.118
- Digital substation
- optionally TiDL or Sampled Values per IEC 61850-9-2 / IEC 61869-9
Price, availability and lead time on request. We help with analogue selection, customs clearance and delivery.
Description
The SEL-451 controls bay breakers and disconnectors and performs IEEE C37.118 synchrophasor measurements. The SEL-352 breaker failure function is single-pole or three-pole, with incomplete-phase and open-contact flashover monitoring.
Current inputs 1 A / 5 A, voltage inputs 0–300 V. Communication over IEC 61850 Ed.2.1 and DNP3, PRP redundancy, PTPv2 synchronisation, optionally TiDL or Sampled Values per IEC 61850-9-2 / IEC 61869-9.
Technical specifications
| Current inputs | 1 A / 5 A |
|---|---|
| Voltage inputs | 0–300 V (phase-to-neutral) |
| Protocols | IEC 61850 Ed.2.1, DNP3, PRP, PTPv2, synchrophasors IEEE C37.118 |
| Digital substation | optionally TiDL or Sampled Values per IEC 61850-9-2 / IEC 61869-9 |
| Functions | bay control, breaker failure protection, breaker switching-life monitoring |
| SEL-352 | single-pole and three-pole breaker failure, incomplete-phase operation, flashover across open contacts |
Request a price and lead time
SEL-451 / SEL-352 — circuit breaker protection and bay control. 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
What functions does the SEL-451 perform?
Bay control, breaker failure protection and breaker switching-life monitoring, plus synchrophasor measurements per IEEE C37.118.
How does the SEL-352 differ from the SEL-451?
The SEL-352 is a dedicated breaker failure device, single-pole or three-pole, with detection of incomplete-phase operation and flashover across open contacts.
What current and voltage inputs does the SEL-451 have?
Current inputs are 1 A / 5 A and voltage inputs are 0–300 V (phase-to-neutral).
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