ADR131A – Non Communicable 2 OC + 1 EF
General Description
The ADR131A is a three element numerical relay can having following option , 2 OC +1 EF or 3EF relay with Instantaneous high set and programmable output to simplify feeder protection wiring.
Model: ADR131A-AM10101
Functional Details: Non Communicable Numerical 2 OC + 1EF Relay.
Cabinet Style: CSA-150
Model: ADR131A-AM10201
Functional Details: Non Communicable Numerical 3 OC Relay.
Cabinet Style: CSA-150
Model: ADR131A-AM10301
Functional Details: Non Communicable Numerical 3 EF Relay.
Cabinet Style: CSA-150
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Numerical Communicable OC/EF Protection Relay : ADR131A
Specifications
- 3 Element (2 Phase + EF / 3 Phase / 3EF ) over current IDMT with instant trip.
- Display of fault current. / Load current.
- Selection of Curve: Six selectable curves (Normal Inverse1 (C1), Normal Inverse2 (C2), Very Inverse (C3), Extremely Inverse (C4), Long Time Inverse (C5) & Definite Time (C6).
- Separate curve selection for phase and EF.
- Latching of fault current up-to last 5 fault.
- Site selectable CT secondary
- Programmable Annunciation Contact
- Trip circuit supervision function.
- Breaker Fail.