Product Description
General Electric UR8AH Multilin Universal Relay CT/VT Module
- Manufacturer: General Electric (now under GE Vernova)
- Series: Multilin Universal Relay (UR)
- Model/Part Number: UR8AH
- Description: Current Transformer/Voltage Transformer (CT/VT) Module for Multilin Universal Relay series
Overview
The General Electric UR8AH is a Current Transformer/Voltage Transformer (CT/VT) Module from the Multilin Universal Relay (UR) series, manufactured by GE and now managed by GE Vernova. Designed for integration into UR series relays (e.g., T60, G60, B30, L90), it provides precise measurement of current and voltage in power systems for protection, control, and monitoring. The module is used in applications such as power plants, substations, and industrial power systems to ensure accurate fault detection and system reliability.
Technical Specifications
| Specification | Details |
|---|---|
| Model | UR8AH |
| Series | Multilin Universal Relay (UR) |
| Type | CT/VT Module |
| Function | Measures current and voltage for power system protection and monitoring |
| Current Inputs | 4 CT inputs (3 phase: 1A/5A, 1 ground: 1A/5A) |
| Voltage Inputs | 4 VT inputs (up to 300 V) |
| CT Rating | 1 A or 5 A (configurable, must match connected CT secondary rating) |
| VT Rating | Configurable for phase and auxiliary voltages |
| Protection Functions | Differential protection, phase splitting, overcurrent, ground fault |
| Connectors | Terminal blocks for CT/VT wiring |
| Wiring | Size 12 AWG (max 10 AWG for flexibility) |
| Compatibility | UR series relays (e.g., B30, C60, F35, G60, L90, T60) |
| Installation | Plug-and-play modular design, slots into UR relay chassis (e.g., slot F) |
| Configuration | Via EnerVista UR software or relay front panel |
| Dimensions | Approx. 15.2 cm x 17.8 cm x 3.8 cm (6 x 7 x 1.5 in) |
| Weight | Approx. 1.13 kg (2.5 lbs) |
| Environmental Protection | Conformal coating optional for harsh environments |
| Operating Temperature | -40°C to +60°C (-40°F to +140°F) |
| Storage Temperature | -40°C to +80°C (-40°F to +176°F) |
| Relative Humidity | Up to 95% (non-condensing) |
| Certifications | CE, UL, CSA, IEC |
| Manual | GEK-113000 (UR Series Manual) |