The ZJJ series DC Ground Fault Detector can monitor the insulation of the DC bus and the grounding resistance of the positive and negative busbars online in real time. This ground fault monitoring device utilizes an entirely static circuit and includes a highly sensitive grounding resistance monitoring and display circuit. When the insulation monitor drops below the set value, the ground fault monitoring relay sends out a warning signal. This ground fault monitoring system has a Panel mounting or din rail Insulation monitoring relay.
This ground fault detector is used for DC or AC/DC main circuits, UPS systems, battery systems, IT systems with high leakage capacitances, and DC charging stations for electric vehicles
