Product Description
ALSTOM P54691NR7M0760M is a line current differential protection relay of the MiCOM P546 series, originally Alstom and now GE Vernova. It is a high-speed line differential protection device for power transmission lines and cable circuits, widely used as spare part for legacy power projects. This unit integrates current differential protection, distance protection, earth fault protection, auto-reclosing, synchronism check and other functions. It supports fiber pilot communication and multiple communication protocols including IEC61850, IEC 60870-103 and Courier. It is equipped with fault recorder, event log and CT supervision, with strong EMC performance. Flush panel mounting design makes it a core protection device for high-voltage lines in substations.
Technical Parameters
- Brand: ALSTOM (Alstom / GE Vernova)
- Model: P54691NR7M0760M
- Series: MiCOM P546
- Product Type: Line Current Differential Protection Relay
- Nominal Current: 1A / 5A dual rated
- Nominal Voltage: 100–120V phase-phase
- Auxiliary Supply: 110~250V DC / 100~240V AC
- Communication: Fiber channel, RS485; IEC61850, IEC 60870-5-103, Courier, DNP3.0
- Protection Functions: Current differential, multi-zone distance, directional earth fault, auto-reclose, synchronism check, CT fail alarm
- Recording: Fault disturbance recording, event sequence log, metering data log
- Short-time Withstand Current: 100In for 1s
- Operating Temperature: -25℃ ~ +70℃
- Protection Class: Front IP54, rear terminals IP20
- Mounting: Flush panel mount / 19″ rack mount
- Standards: IEC 60255, IEC 61850
- Lifecycle: Discontinued, spare part for substation retrofit & replacement
Application
- Main protection for HV overhead transmission lines and power cables;
- Pilot differential protection for two-terminal and multi-terminal transmission lines;
- Outlet lines of power plants and tie-lines between substations;
- High-voltage line protection for captive power plants in chemical and metallurgical industries;
- Power grid renovation and spare replacement for old MiCOM relays;
- High-voltage circuits requiring fiber pilot differential plus distance backup protection.
Similar Series Models
P543, P544, P545, P546, P54691NR7M0760M, P54691NR7M0761M
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