Frequently Asked Questions about UR-8LV
Is the UR-8LV CT/VT module able to provide ground fault protection in order to afford the universal relay with protection on high –impedance grounded systems or provide fault detection to detect faults that are caused by downed conductors?
The features and capabilities that you describe can be afforded to a universal relay that contains a certain type of CT/VT module with the sensitive ground input special function. The CT/VT module order options that include this mentioned feature are the 8G, 8J, 8M, and 8R CT/VT modules of the new type, and the 8B and 8D CT/VT modules that are the old CT/VT module type. The product mentioned, the UR-8LV, does not contain this sensitive ground input special function. The description for this order option is a standard 4CT/4VT with enhanced diagnostic features. If this particular CT/VT modules is found within a universal relay then the CT/VT module will provide the universal relay with those features unless a new CT/VT module is incorporated into the unit. The firmware version 4.0x and higher versions can be used with the newer CT/VT modules and with the newer CPUs contained within a GE Multilin universal relay. The other I/O modules in the universal relay can function with the new forms of the CT/VTs and the CPUs as well.
