Operates on AC ungrounded systems.
The PGR-3200 detects ground faults by continuously
monitoring the insulation integrity of ungrounded electrical
systems. The relay monitors the insulation for damage and
assists
with predictive maintenance and troubleshooting of
developing ground faults by providing two warning and an
alarm level. The PGR-3200 operates on one- or three-phase
ungrounded systems up to 6 kV.
The PGR-3200 can also be used on a grounded system to
monitor the insulation for damage, while the power system
is de-energized. The mode-of-operation terminals (27-28)
are connected to the circuit breaker or contactor auxiliary
contacts to toggle the relay off when the contactor or breaker
is closed.
