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The PGR-6101 series relay operates on one- or three-phase solidly grounded, resistance-grounded, and ungrounded ac systems up to 6 kV. This relay combines the features of a ground-fault protection relay and insulation monitor into one unit. It protects against ground-faults by monitoring insulation resistance when the motor is de-energized and by monitoring ground-fault current when the motor is energized. The PGR-6101 features two separate analog outputs for optional current and ohm meters as well as two separate alarm relays.
- Adjustable GF pickup (30–200 mA)
- Adjustable insulation pickup (60–600 kΩ)
- Adjustable time delay (50–250 ms)
- Output contacts
- Analog outputs (0–1 mA)
- CT loop monitoring
- Selectable contact operating mode
- POWR-GARD® technology
- Trip setting provides a wide range of low-level protection and system coordination
- Customizable insulation resistance setpoints for maximum protection
- Adjustable trip delay for quick protection and system coordination
- Two Form C output contacts for ground-fault and insulation-resistance fault
- Two analog outputs indicate insulation resistance and ground-fault current
- Alarms when CT is not connected
- Selectable fail-safe or non-fail-safe operating modes allow connection to shunt or undervoltage breaker coil
- Superior protection against electrical system damage
PGR-6101 Parts
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PGR-6101 Applications
- One- or three-phase solidly grounded, resistance-grounded, and ungrounded ac systems up to 6 kV.
