GE UR7CH Central Processing Unit (CPU) Module

Product Description

The GE UR7CH is a Central Processing Unit (CPU) module designed for the Multilin UR (Universal Relay) series by General Electric. It serves as the main processor for the relay system, enabling high-speed data processing, real-time protection coordination, and control for a variety of power system applications such as transmission, distribution, and generator protection. The module supports advanced communications and integrates seamlessly with other UR series components.

Technical Specifications

• Product Type: CPU Module for Multilin UR Series

• Part Number: UR7CH

• Processor: High-speed digital signal processor (DSP)

• Communication Ports:

• Dual Ethernet ports (10/100Base-T)

• RS232 serial port

• RS485 communication support

• Supported Protocols:

• Modbus RTU/TCP

• IEC 61850

• DNP 3.0

• IEC 60870-5-103

• Real-Time Clock: Integrated with battery backup

• Firmware Upgradable: Yes, through serial or Ethernet connection

• Memory: Internal flash memory for data storage and firmware

• Event Recording: Supports time-stamped event and fault data logging

• Redundancy: Supports redundant Ethernet for communication reliability

• Operating Temperature: –40°C to +70°C (–40°F to +158°F)

• Storage Temperature: –40°C to +85°C (–40°F to +185°F)

• Humidity: 5% to 95% non-condensing