About the UR-8GH
One of the many modules designed for GE Multilin’s Universal Relays series, the UR-8GH is a CT/VT module that provides sensitive ground protection with its current transforming and voltage transforming capabilities. This module is a notable improvement over the base model of the module, as its sensitive ground protection feature makes it ten times more sensitive to fault detection of this variety. The UR-8GH module is highly configurable by editing system settings through the Universal Relay’s keypad and LCD, or more easily through Multilin’s EnerVista software program. The EnerVista program can connect to the relay directly through the RS232 port located on the faceplate of the device or through Ethernet connection if it is available on the given unit. The relay’s setpoints allow users to set up different CT/VT schemes for highly specified protection with both split-phase protection and differential protection. General Electric Multilin’s UR-8GH also is able to:
- increases safety for users as it possesses an automatic shorting mechanism when the Universal Relay is withdrawn from its case
- scale down rated voltages and currents to allow a greater understanding of the system and its needs
- address hazardous faults and their causes
- utilize advanced health diagnostics to validate the integrity of CT/VT signals, ensuring that all data is accurate and generated properly
UR-8GH Modular Customization
The part UR-8GH, is a CT/VT module as specified by the ‘8’ contained in the part number following the ‘UR’ designation. All CT/VT modules of the UR relay series have this number for the CT/VT modules. The UR-8GH is one of the newer CT/VT modules. A UR-8GH Multilin CT/VT module has the sensitive ground 4CT/4CT configuration. The other order options of the new CT/VT modules are:
- the 8F option (standard 4CT/4VT)
- the 8H option (standard 8CT)
- the 8J option (sensitive ground 8CT)
- the 8L option (standard 4CT/4VT with enhanced diagnostics)
- the 8M (sensitive ground 4CT/4VT with enhanced diagnostics)
- the 8N (standard 8CT with enhanced diagnostics)
- the 8R (sensitive ground 8CT with enhanced diagnostics)
Up to 24 voltage transformer and current transformer signals are able to be configured by the Multilin UR CT/VT modules in order to monitor the power lines
