The Patton & Cooke Ground Check Monitor Relay
is a special relay for checking ground wire continuity in trailing
cables. The relay can detect an open circuit in the ground wire
or pilot wire or a short circuit between the pilot wire and ground
and will trip. The N.O.- N.C. contacts may be wired to a shunt
trip, undervoltage trip, or conductor coil. The Ground Check Monitor
Relay must always be used with a Patton & Cooke terminating
device.
