ADR141A – Non Communicable 3 OC + 1 EF
General Description
The ADR141A is a 3 OC and 1 EF Switchgear Protection relay with Instantaneous high set and programmable output to simplify feeder protection wiring.
Numerical 3 OC & 1 EF Switchgear Protection Relay : ADR141A
Specifications
- 4 Element (3 Phase + EF) 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.
- [table id=2 /]
Model: ADR141A
Functional Details: Non Communicable Numerical Over current / Earth fault Switchgear Protection Relay.
Cabinet Style: CSA -150