Reyrolle relays
ARGUS 1
 | Single or three – phase three – stage overcurrent protection with DT or IDMT characteristic |
| Earth fault three-stage protection with DT or IDMT char. |
| Sensitive or restricted earth fault protection |
| Event recorder |
| Disturbance recorder |
| Breaker failure protection |
| Trip circuit supervision |
ARGUS 2
| Single or three – phase three – stage directional overcurrent protection with DT or IDMT characteristic |
| Directional earth fault (three stage) protection with DT or IDMT char. |
| Sensitive or restricted earth fault protection |
| Event recorder |
| Disturbance recorder |
| Breaker failure protection |
| Trip circuit supervision |
ARGUS 3
| Overcurrent protection |
| Earth fault protection |
| Autorecloser (multishot) |
ARGUS 4
| Overcurrent protection |
| Earth fault protection |
| Autorecloser (multishot) |
ARGUS 5
Bi-directional version of Argus 3 with separate independent settings for forward and reverse overcurrent protection
| Overcurrent protection |
| Earth fault protection |
| Autorecloser (multishot) |
ARGUS 6
Bi-directional version of Argus 4 with separate independent settings for forward and reverse overcurrent char.
| Overcurrent protection |
| Earth fault protection |
| Autorecloser (multishot) |
| Disturbance recorder (5 waveform records |
| Event recorder (last 500 events) |
ARGUS 7 Synchronizing relay with undervoltage & differential voltage
Solkor R / Rf Feeder differential relay
Functions to be tested:
| Line differential protection |
|
Solkor-M Feeder differential relay
Type SK2 (101,102,103)
| Line differential protection |
| Communication signal monitoring |
| Event recording |
| Disturbance recording facilities |
| Internal and external intertrip |
Solkor Microphase (FM) Feeder differential relay
Type MF1 (101,102,103) ; From 220 kV upwards
| Line differential protection |
| Communication signal monitoring |
| Event recording |
| Disturbance recording facilities |
| Internal and external intertrip |
2DAB & 2DABT Breaker failure relay
| Instantaneous overcurrent with DT char. |
Duobias-M Transformer overall differential protection
| Current differential protection |
| Differential high-set overcurrent protection |
| Restricted earth fault protection |
| Breaker failure protection |
Supertap Voltage regulating relay
| Voltage regulating function |
| Parallel operation based on a modified negative reactance principle |
| Line drop compensation using a single control |
| Effective runaway protection |
| Fast tap down feature |
| Coupling control |
| Bandwidth control |
Motorprot RHo Motor protection relay
| Thermal overload protection |
| Undercurrent protection |
| Under/Overvoltage detection |
| Under/Overfrequency detection |
| Phase unbalance protection |
| Phase rotation detection |
| Earth fault protection |
| Short circuit protection |
| Power high/low monitoring |
| Stall and locked rotor protection |
| Acceleration time monitoring |
DAD Busbar protection (High impedance circulating current relay)
| Current differential protection |
| Harmonic rejection |
| Open circuit current transformer supervision |
Gamma 1 Generator protection
For medium and large generators, low or high impedance earthed
| Voltage controlled or restrained overcurrent protection |
| Neutral voltage displacement (95% stator earth fault) protection |
| Neutral overcurrent protection |
| Two step overvoltage and two step under voltage protection |
| Four step over and under frequency protection |
| Reverse or low forward power protection |
| VT supervision |
| Rate of change of frequency protection |
| Biased generator phase differential protection |
| Earth differential protection (for low impedance earthed) |
| Negative phase sequence overcurrent protection |
| Loss of field protection |
| Overexcitation (V/Hz) protection |
| Inadvertent generator energizing |
| Generator circuit breaker fail protection |
Gamma 2 Generator protection
For large generators
| Voltage controlled or restrained overcurrent protection |
| Neutral overcurrent protection |
| Two step overvoltage and two step under voltage protection |
| Four step over and under frequency protection |
| Reverse or low forward power protection |
| VT supervision |
| Rate of change of frequency protection |
| Biased generator phase differential protection |
| Earth differential protection (for low impedance earthed) |
| Negative phase sequence overcurrent protection |
| Loss of field protection |
| Overexcitation (V/Hz) protection |
| Inadvertent generator energizing |
| Generator circuit breaker fail protection |
| Two zones distance backup protection |
| 100 stator earth fault protection |
Ohmega Digital distance protection
Two types:300 and 400
| Shaped MHO characteristics |
| Quadrilateral EF characteristics |
| Communication scheme logic |
| Directional earth fault protection |
| Single shot auto-recloser |
| Check synchronizing |
| Over & under voltage protection |
| Overcurrent protection |
| High set overcurrent protection |
| Circuit breaker fail protection |
| Under over frequency protection |
| Sensitive earth fault protection |
| Switch on to fault protection |
| Mutual compensation for parallel lines |
| Voltage memory |
| Power swing blocking or tripping |
| Thermal overload protection |
| Current reversal logic |
| Open conductor detection |
| Voltage transformer supervision |
| Fault locator |
| Event recording |
| Fault recording |
BT1 Arc monitoring and protection
Models avilable:101, 103, 105, 108
| Digital overcurrent protection |
| Circuit breaker failure protection with DT char. |
| Arc protection |
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