Description
Earth Fault Relay (EFR) can be employed with various earth fault protective schemes, The magnitude of the earth fault current depends on the fault impedance and invariably, the fault impedance for earth fault is higher than that for phase faults, hence the earth fault current is low compared to the phase fault currents. The fault impedance depends on the system parameter and also on type of earthling. The neutral may
be solidly grounded, grounded through resistance or reactance.
KEY FEATURES
- IDMT (4 IEC Curve),Definite Time & Instantaneous
- Digital Design
- Sensitivity : 5% – 80% in Steps of 1%
- Rated Current-In :1A /5A
- Mounting – Flush / DIN
- LED indication of fault Status & Healthy Status
- Fully digital acquisition & Processing Of data
- LCD display of operated Current & Fault Current
- Rugged and Tropicalized design
- CBCT can be offered on request
