7EN02-0421-00

Example application: Locating the insulating alarm with IMD, where device and IMD are connected to an external network

You can use the device to locate the insulating alarm of an ungrounded power system with IMD connected to an external network.

IMD is powered by the ungrounded power system that it monitors. IMD is connected to neutral (or to one phase) and ground. The device is connected to the toroids. Toroids are connected to the channels of the system.

IMD monitors the insulation of the system. The device locates the channel where the insulation fault occurs. IMD insulation alarm output and the device alarm output are connected to an available input on a networked device (Power Meter or PLC, for example). The networked device is connected to a supervisor via a communication network.

NOTE: In this example, only the fault information is available to the supervisor.
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