DEIF’s differential current relay RMC-131D protects the generator against short circuits and leakage currents in the windings of the generator.
The relay compares the differential current of each of the three phases, providing an RMS measurement at sinusoidal currents. In order to obtain a short response time on a fault condition, the measurement is based on peak values.
The versatile units feature a number of adjustable parameters.
RMC-131D is part of DEIF’s complete range of relays for protection and control of generators.
Variants
RMC-111D
- Short circuit
- I>>: 100 to 400 %. <50 mS response time
RMC-121D
- Short circuit
- I>>: 100 to 400 %. 2 sets of contacts (parallel)
RMC-122D
- Short circuit and over-current
- I>>: 100 to 400 %, I>: 50 to 150 %
- Combined functionality
RMC-131D
- Differential current
- I>>: 100 to 400 %. 2 sets of contacts (parallel).
Multi-differential relay MDR-2
- Short response time (70 ms)
- 3-phase current detection on both generator sides
- Active adjustment of non-balanced current measurements
- Measuring accuracy 1 %
- Display indicator for all measurements
- DIN rail or base mounting with remote mountable display
Battery charger DBC-1
- Automatic and electronic protection features
- Automatic restart after fault condition
- Alarm relay
- Automatic output power derating for high ambient temperatures
- LED indication of faults, boost charging and normal operation
- Boost mode
- Adjustable output voltage
- No moving parts – no maintenance