General Description
The ADR111A is a single element OC /EF (the setting rang cove both phase / EF requirement) relay with Instantaneous high set.
| ANSI | Protection Functions |
| 50/50N | Instantaneous Protection (OC/ EF-Inst.) |
| 51/51N | Time Over current Protection (OC/ EF-IDMT.) |
| * 64N | Restricted Earth Fault. |
| * The Relay can be use ether phase or EF or REF. |
| Model | Functional Details | Cabinet Style |
| ADR111A | Non Communicable Numerical Over current / Earth fault Relay with 10% to 250% setting. | CSB-150 |
| ADR111E | Non Communicable Numerical Earth fault Relay with sensitive 5% to 100% setting. | CSB-150 |
Numerical Single Pole OC/EF Protection Relay : ADR111A
Specifications
- Back - lit LCD display for settings.
- Display of fault current / Load current.
- Selection of Curve: Six selectable curves (Normal Inverse 1 (C1), Normal Inverse 2 (C2), Very Inverse (C3), Extremely Inverse (C4), Long Time Inverse (C5) & Definite Time (C6).
- Design using DSP technology.
- Latching of fault current up-to last 5 fault.
- Site selectable CT secondary.
- Relay can be made either IDMT or Define time.
- Programmable operating time in instantaneous element.
- Breaker Fail Function.
- Suitable For REF Protection.