Example application: Ungrounded power system insulation monitoring and the insulation fault location is sent to a supervisor
You can use an IMD and insulation fault locator to monitor
an ungrounded power system and send the alarm to a supervisor.
An ungrounded power system is a system involving the use of a transformer whose neutral is not connected to ground.
The insulation is monitored by an IMD whose insulation alarm and preventive insulation alarm outputs are connected to an available input on a networked device (For example: PLC). This device is connected to a supervisor via a communication network.
Locating the insulation fault is done using XD301, XD312 or IFL devices. The XD301, XD312, or IFL* output relay is connected to an available input on a networked device.
The XRM mobile insulation fault locator is used to locate accurately the area where the insulation fault has occurred.
NOTE: In this scenario, only the insulation alarm, preventive insulation
alarm, and faulty channel information are available to the supervisor.