Protection relays
MVR-200 Series
For busbar protection, feeder protection, generator protection, motor protection and transformer protection.
The MVR-200 series offers integrated or segregated protection with powerful complementary monitoring, measuring, communication and diagnostics information. The MVR-200 is developed using the latest available technologies opening a totally new dimension for medium voltage protection and monitoring.
- Three phase overcurrent protection stages INST, DT or IDMT
- (Sensitive) Earth-fault protection stages INST, DT or IDMT
- Harmonic overcurrent protection / inrush blocking stages INST, DT or IDMT
All MVRs
Multi-Line
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
MTR-4 Multi-transducer MTR-4
- Suitable for all 1- and 3-phase network topologies
- Up to 1,000 VL-L AC input
- Accuracy class: 0.5 or 0.4
- Up to 4 analogue outputs
- Fast response time, less than 50 ms
- Measures more than 50 parameters
- RS-485 serial Modbus communication
- Fully configurable by USB, no aux. supply required
- Universal power supply of 20 to 300 V DC/48 to 276 V AC
Uni-Line
Current relay RMC-122D
- Short circuit and over-current
- I>>: 100 to 400 %, I>: 50 to 150 %
- Combined functionality
- Short circuit relay (I>>)
- ANSI code 50 and 51
- Measurement of 3-phase currents
- LED indication of fault condition
- Timer-controlled tripping
- LED indication for activated relay
- 35 mm DIN rail or base mounting
Current relay RMC-131D
- 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
Loss of mains relay LMR-122D
- Vector shift and df/dt (ROCOF)
- Detection of vector shift
- ANSI code 78
- Mains disconnection on mains failure
- Ensures no asynchronous reconnection
- LED indication of fault condition
- LED indication for activated relay
- 35 mm DIN rail or base mounting
Undervoltage and overvoltage relay, U< and U> RMV-112D
- Under- and over-voltage.
- U>: 100 to 120 %, U<: 80 to 100 %.
- Under-voltage/over-voltage (U< + U>)
- ANSI code 27 and 59
- 3-phase measurement
- LED indication of fault condition
- Timer-controlled tripping
- LED indication for activated relay
- 35 mm DIN rail or base mounting
Overvoltage relay, U> and U> RMV-122D
- Over-voltage (double).
- U>: 100 to 120 %,U>: 100 to 120 %.
- Under-voltage/over-voltage (U< + U>)
- ANSI code 27 and 59
- 3-phase measurement
- LED indication of fault condition
- Timer-controlled tripping
- LED indication for activated relay
- 35 mm DIN rail or base mounting
Undervoltage relay, U< and U< RMV-132D
- Under-voltage (double).
- U<: 80 to 100 %, U<: 80 to 100 %.
- Under-voltage/over-voltage (U< + U>)
- ANSI code 27 and 59
- 3-phase measurement
- LED indication of fault condition
- Timer-controlled tripping
- LED indication for activated relay
- 35 mm DIN rail or base mounting
Over-/undervoltage relay, U> and U< RMV-142D
- Under- and Over-voltage.
- U>: 100 to 120 %, U<: 80 to 100 %.
- Single phase measurement.
- Under-voltage/over-voltage (U< + U>)
- ANSI code 27 and 59
- 3-phase measurement
- LED indication of fault condition
- Timer-controlled tripping
- LED indication for activated relay
- 35 mm DIN rail or base mounting
Other related products
Synchronisation & circuit breaker closing FAS-115DG
- Automatic.
- Voltage regulation
- Breaker-time compensation.
- Synchronisation of generator to busbar
- Circuit breaker time compensation
- Voltage control
- LED indication of status
- LED for activated control
- LED for synchronising signal
- 35 mm DIN rail or base mounting
Synchronisation & circuit breaker closing FAS-113DG
- Automatic.
- Voltage regulation
- Breaker-time compensation.
- Synchronisation of generator to busbar
- Circuit breaker time compensation
- Voltage check
- LED indication of status
- LED for activated control
- LED for synchronising signal
- 35 mm DIN rail or base mounting
-
Contact us to discuss your options
- 90 years of energy pioneering
- Manufactured at the highest standards
- Superior quality
- Unmatched service and support
- Made in Denmark