DEIF RMC-131D Current relay
RMC-131D
Current relay
DEIF’s differential current relay RMC-131D protects the generator against short circuits and leakage currents in the windings of the generator.
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.
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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).
Features
Differential current relay
ANSI code 87
Measurement of 3-phase currents
Non-stabilised measurement
LED indication of fault condition
Timer-controlled tripping
LED indication for activated relay
Extra change-over relay contact for signalling
35 mm DIN rail or base mounting