SR750-P5-G5-S5-HI-A20-G

Overview

GE SR750-P5-G5-S5-HI-A20-G is a Multilin Feeder Protection System designed for reliable protection and monitoring of feeders.

Ordering

• P5: 5 A phase current inputs
• G5: 5 A zero sequence current inputs
• S5: 5 A sensitive ground current input
• HI: Control power options: 88–300 VDC, 70–265 VAC at 48–62 Hz
• A20: Eight 4–20 mA analog outputs
• G: Green breaker closed LED (Breaker Status LED)

Phase Directional

• Relay Connection: 90° (quadrature)
• Polarizing Voltage: Vbc (phase A); Vca (phase B); Vab (phase C)
• MTA: 0 to 359° in steps of 1
• Angle Accuracy: ±2°
• Operation Delay: 25 to 40 ms

Monitoring

Phase/Neutral Current

• Pickup Level: 0.05 to 20.00 × CT in steps of 0.01
• Dropout Level: 97 to 98% of pickup
• Time Delay: 0 to 60000 s in steps of 1 (Definite Time)
• Level Accuracy: Per current input
• Timing Accuracy: ±100 ms

Power Factor

• Required Voltage: >30% of nominal in all phases
• Pickup Level: 0.50 lag to 0.50 lead in steps of 0.01
• Dropout Level: 0.50 lag to 0.50 lead in steps of 0.01
• Time Delay: 0 to 60000 s in steps of 1 (Definite Time)
• Level Accuracy: ±0.02
• Timing Accuracy: ±100 ms

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