Microcontroller ground fault protection device
MKZZP-6-35-I (K) microcontroller ground fault protection device for 6-35 kV bus sections is designed to selectively disable connections in case of ground fault in networks with voltage of 6-35 kV (or show a number of a damaged connection without disabling) working with insulated neutral.
The device provides:
- recording controlled parameters, date and time of activation in protocol;
- oscillograms of input signals on all channels;
- transfer of monitored parameters and logical signals on serial channel (RS-485) to the computer controller.
The sensitivity of the protection does not depend on the connection's capacitive current.
Using principle of relative measurement compared to the absolute measurement allows for selective determination of the failed connection with significantly smaller damage.