GE Fanuc Multilin | SR 750 | SR750 | Feeder Management Relay
Overview
The GE Fanuc Multilin SR750 Feeder Management Relay offers advanced protection and control for feeder circuits. It integrates time-overcurrent, ground fault, and directional protection, ensuring reliable operation in industrial power distribution systems.
Key Protection Features
- Overcurrent Protection: Adjustable pickup levels (0.05 to 20.00 x CT), ANSI, IEC, and FlexCurve™ settings.
- Sensitive Ground Overcurrent: Pickup from 0.005 to 1.000 x CT, with precise timing accuracy (±3% or ±40 ms).
- Instantaneous Overcurrent: Adjustable time delays (0.00 to 600 s), with a fast response time (50 ms max for contacts, 45 ms max for solid-state output).
- Directional Protection: Phase and neutral directional protection with precise angle control (0 to 359°).
- Reset Type: Selectable instantaneous or linear reset.
Accuracy and Timing
- Level Accuracy: ±3 x input error for current input (I2).
-
Timing Accuracy:
- For 1.03 x PU: ±3% of trip time or ±40 ms (whichever is greater).
- Non-zero delay: ±20 ms accuracy.
- Angle Accuracy: ±2° for directional protection.
Operational Settings
- Pickup Level Range: 0.05 to 20.00 x CT for overcurrent protection.
- Time Delay: Adjustable from 0.00 to 600.00 s for overcurrent protection.
- Phase/Neutral/Ground: Programmable phases for overcurrent protection and fault detection.
GE Fanuc Multilin | SR 750 | SR750 | Feeder Management Relay
GE Fanuc Multilin | SR 750 | SR750 | Feeder Management Relay
Overview
The GE Fanuc Multilin SR750 Feeder Management Relay offers advanced protection and control for feeder circuits. It integrates time-overcurrent, ground fault, and directional protection, ensuring reliable operation in industrial power distribution systems.
Key Protection Features
- Overcurrent Protection: Adjustable pickup levels (0.05 to 20.00 x CT), ANSI, IEC, and FlexCurve™ settings.
- Sensitive Ground Overcurrent: Pickup from 0.005 to 1.000 x CT, with precise timing accuracy (±3% or ±40 ms).
- Instantaneous Overcurrent: Adjustable time delays (0.00 to 600 s), with a fast response time (50 ms max for contacts, 45 ms max for solid-state output).
- Directional Protection: Phase and neutral directional protection with precise angle control (0 to 359°).
- Reset Type: Selectable instantaneous or linear reset.
Accuracy and Timing
- Level Accuracy: ±3 x input error for current input (I2).
-
Timing Accuracy:
- For 1.03 x PU: ±3% of trip time or ±40 ms (whichever is greater).
- Non-zero delay: ±20 ms accuracy.
- Angle Accuracy: ±2° for directional protection.
Operational Settings
- Pickup Level Range: 0.05 to 20.00 x CT for overcurrent protection.
- Time Delay: Adjustable from 0.00 to 600.00 s for overcurrent protection.
- Phase/Neutral/Ground: Programmable phases for overcurrent protection and fault detection.