General Description
A22F is a very compact Communicable Numerical Protection Relay designed for Feeder Protection.
It offers non directional overcurrent and earth fault protection, with its functions designed to cover a wide range of applications in industrial installations, public distribution networks, and substations.
The relay is easily configurable by Ashida Programming software RTv2 & offers various advantages like Retrieval of events, faults , DR etc.
| Model | Functional Details | Cabinet Style |
| A22F | Feeder Protection Relay | CSF |
ANSI code supported alongwith other function like metering
| ANSI Code | Description |
| 50 | Instantaneous Overcurrent |
| 51 | Time Delayed Overcurrent |
| 50N | Neutral Instantaneous Overcurrent |
| 51N | Neutral Time Overcurrent |
| 46BC | Broken Conductor detection |
| 46 | Phase Unbalance |
| 49 | Thermal Overload |
| CLP | Cold Load pickup |
| 37 | Under current |
| 50BF | Breaker Failure |