PGR-6100 Motor Ground-Fault & Insulation Relay
Functions:
- Measures phase-to-ground resistance to detect electrical-insulation failure on the motor before energization
- Mode of operation terminals allow the relay to be used on resistance-grounded and solidly grounded systems, by disabling its operation when the contactor or breaker is closed
- Ground-fault protection provided by a current transformer when the motor is energized
Features:
- Adjustable ground-fault trip level from 10 mA to 3 A
- Adjustable ground-fault delay time from 50 ms to 1 s to provide system coordination
- Two 0- to 1-mA analog outputs for external metering of the measured resistance and ground-fault current
- Remote reset terminals for each protection function
- CT loop monitoring
- Selectable fail-safe or non-fail-safe modes of operation
- Compatible with systems up to 6 kV
- DIN-rail or surface mounting
- Five year warranty
Data Sheets:
Manuals:
Typical Applications:
- Used where it is important to detect insulation failure in a motor before energization, or where both online and offline ground-fault detection is desired
Minimum System Components:
The PGR-6100 accepts direct phase connections up to 600 V to perform insulation monitoring. A PGH-series High-Tension Coupler is required for systems between 600 and 6000 V. A PGC-5000-series Current Transformer is required for ground-fault current monitoring and protection.
IEEE Device Numbers:
50G, 50N, 51G, 51N, 64
Analog Percent Current Meter
Panel-mount indication of ground-fault current; compatible with 0-1 mA and 0-5 V analog output signals.
High-Tension Coupler
Provides a phase connection to an insulation monitor for medium-voltage systems up to 5 kV.
Analog Ohm Meter
Displays the measured insulation resistance, with a range of 0 to infinity.
High-Tension Coupler
Provides a phase connection to an insulation monitor for medium-voltage systems up to 6 kV.
Current Sensor
Current sensor used to detect ground-fault current.
CAD Drawing
Technical Information
Diagram
Current Sensor
Current sensor used to detect ground-fault current.
Current Sensor
Current sensor used to detect ground-fault current.
Current Sensor
Current sensor used to detect ground-fault current.
Current Sensor
Current sensor used to detect ground-fault current.