ZJJ DC insulation monitoring relay monitorsthe insulation of the DC bus, and it sendsalarm signal when the bus-to-groundinsulation drops to a certain value,also it ispanel mounted type,and the relay has a high-sensitivity grounding resistance monitoringand display circuit, it is great significance forthe safe operation of the DC system.

Monitoring of the DC circuit bus barinsulation resistance RF to earth.
LCD screen display resistance value.
Bridge balance method for resistancemeasurement.
Adjustable response value ranges of 0-100kΩ.
Smaller short-circuit grounding current forsafe operation.