| Functions | Rotor Earth Fault Protection |
|---|---|
| Name | XRI-1 |
| Auxiliary Voltage | 16 - 360 V DC / 16 - 270 V AC |
| Power Consumption | Standby 3 W, Operating 5 W |
| Digital Outputs | 2 relays with 2 changeover contacts; 3 relays with 1 changeover contact |
| Digital Inputs | 1; External Reset Input |
| Tripping Time | 0.35 Second |
| Mounting Type | DIN-Rail |
| Degree of Protection | IP40 |
| Nominal Frequency | f-50 / f-60 |
| Functions | Generator protection: 50/51, 51V, 27/59, 81U/O, 32 (reverse power), 46, 40 loss of excitation, 64REF |
|---|---|
| Name | MCDGV-4 |
| Auxiliary Voltage | 24–270 V DC / 48–230 V AC (wide range SMPS) |
| Power Consumption | ≤3 W standby, ≤7 W operating |
| Digital Outputs | 8 configurable relay outputs (changeover) |
| Digital Inputs | 14 programmable digital inputs |
| Tripping Time | Instantaneous: ≤20 ms, IDMT selectable |
| Mounting Type | Flush / Rack / DIN rail (model dependent) |
| Degree of Protection | IP40 (front), IP20 (rear terminals) |
| Nominal Frequency | 50 / 60 Hz selectable |
| Communication | Modbus RTU / TCP, IEC 60870-5-103, IEC 61850 (optional) |
| Display | Graphical LCD with keypad navigation |
| Event Recording | Fault records, disturbance recorder, event logs |
| Standards | IEC 60255 compliant protection relay |
| Functions | Transformer protection: 87T differential, 64REF, 50/51 backup, 49 thermal overload, inrush restraint |
|---|---|
| Name | MRDT4-2 |
| Auxiliary Voltage | 24–270 V DC / 48–230 V AC (wide range SMPS) |
| Power Consumption | ≤3 W standby, ≤7 W operating |
| Digital Outputs | 8 configurable relay outputs |
| Digital Inputs | 16 programmable digital inputs |
| Tripping Time | Instantaneous: ≤20 ms, IDMT selectable |
| Mounting Type | Flush / Rack / DIN rail (model dependent) |
| Degree of Protection | IP40 (front), IP20 (rear terminals) |
| Nominal Frequency | 50 / 60 Hz selectable |
| Communication | Modbus RTU / TCP, IEC 60870-5-103, IEC 61850 (optional) |
| Display | Graphical LCD with keypad navigation |
| Event Recording | Fault records, disturbance recorder, event logs |
| Standards | IEC 60255 compliant protection relay |
| Functions | Generator/Mains decoupling: 25 sync-check, 27/59, 81, ROCOF, vector surge, 32 power |
|---|---|
| Name | MR4-2 |
| Auxiliary Voltage | 24–270 V DC / 48–230 V AC (wide range SMPS) |
| Power Consumption | ≤3 W standby, ≤7 W operating |
| Digital Outputs | 6 configurable relay outputs |
| Digital Inputs | 12 programmable digital inputs |
| Tripping Time | Instantaneous: ≤20 ms, IDMT selectable |
| Mounting Type | Flush / Rack / DIN rail (model dependent) |
| Degree of Protection | IP40 (front), IP20 (rear terminals) |
| Nominal Frequency | 50 / 60 Hz selectable |
| Communication | Modbus RTU / TCP, IEC 60870-5-103, IEC 61850 (optional) |
| Display | Graphical LCD with keypad navigation |
| Event Recording | Fault records, disturbance recorder, event logs |
| Standards | IEC 60255 compliant protection relay |
| Functions | Voltage & frequency protection: 27/59, 81U/O, ROCOF, vector surge, LVRT support |
|---|---|
| Name | MRU4-2 |
| Auxiliary Voltage | 24–270 V DC / 48–230 V AC (wide range SMPS) |
| Power Consumption | ≤3 W standby, ≤7 W operating |
| Digital Outputs | 6 configurable relay outputs |
| Digital Inputs | 12 programmable digital inputs |
| Tripping Time | Instantaneous: ≤20 ms, IDMT selectable |
| Mounting Type | Flush / Rack / DIN rail (model dependent) |
| Degree of Protection | IP40 (front), IP20 (rear terminals) |
| Nominal Frequency | 50 / 60 Hz selectable |
| Communication | Modbus RTU / TCP, IEC 60870-5-103, IEC 61850 (optional) |
| Display | Graphical LCD with keypad navigation |
| Event Recording | Fault records, disturbance recorder, event logs |
| Standards | IEC 60255 compliant protection relay |
| Functions | Feeder protection: 50/51, 50N/51N, short circuit, overload, optional autoreclose |
|---|---|
| Name | MRI4-2 |
| Auxiliary Voltage | 24–270 V DC / 48–230 V AC (wide range SMPS) |
| Power Consumption | ≤3 W standby, ≤7 W operating |
| Digital Outputs | 6 configurable relay outputs |
| Digital Inputs | 10 programmable digital inputs |
| Tripping Time | Instantaneous: ≤20 ms, IDMT selectable |
| Mounting Type | Flush / Rack / DIN rail (model dependent) |
| Degree of Protection | IP40 (front), IP20 (rear terminals) |
| Nominal Frequency | 50 / 60 Hz selectable |
| Communication | Modbus RTU / TCP, IEC 60870-5-103, IEC 61850 (optional) |
| Display | Graphical LCD with keypad navigation |
| Event Recording | Fault records, disturbance recorder, event logs |
| Standards | IEC 60255 compliant protection relay |
Copyright 2025, Asian Power Controls Private Limited.
