About the UR-8AH
A CT/VT module for the Universal Relays series, General Electric Multilin’s UR-8AH provides the UR relay with 1A/5A Phase CTs, 1A/5A Ground CTs, and 4 Voltage Transformers. Voltage transformers and current transformers scale down the voltage and current values of the power system to values that can be identified and moderated by the Universal Relay.
The module also increases overall safety for operators, as portions of the secondary winding of the transformers must be connected to the ground. In addition, they allow fault identification and correction that can produce unsafe conditions within the system. Finally, the data offered enables users to ensure that adequate protection is being provided to the machines and power network as a whole.
Settings related to CTs and VTs can be modified in EnerVista UR, General Electric Multilin’s software program that is compatible with the Universal Relays series. While all Universal Relays have a basic keypad and LCD for navigating system settings and data values, EnerVista UR provides an improved, streamlined user interface for system configuration and data review. The program can also trend and export data generated by the system, allowing users to better assess system trends.