Products Description
The UR9WH (also known as UR-9WH) is a central processing unit (CPU) module designed by General Electric (GE) specifically for its Multilin Universal Relay (UR) series-a modular relay platform widely used in power protection, control, monitoring, and automation systems. As the core processing unit within the UR relay chassis, this module executes embedded firmware logic, coordinates relay inputs and outputs, and manages communication with external monitoring and automation systems.
This module is suitable for environments requiring real-time protection and control decisions, such as utility power grids, industrial energy distribution systems, and automated process facilities.
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Functional Description
The UR9WH CPU module is the core of the GE Multilin UR relay system:
Core Logic Execution: Runs the relay's embedded firmware, parsing protection logic, control loops, and monitoring programs to ensure electrical equipment safety.
Data Coordination: Aggregates sensor and status inputs, processes I/O signals, and outputs corresponding control or trip decisions.
Communication Management: Provides communication channels to supervisory systems via protocols such as Modbus, RS-485, or Ethernet (depending on system configuration).
Diagnostics and Monitoring: Supports self-diagnostics and system health reporting, typically integrated with GE configuration software for remote analysis.
Typical Applications
The UR9WH CPU module is specifically designed for critical protection and automation environments, including:
Power protection relays: Handling fault detection, overcurrent protection, and circuit breaker tripping logic within power grids.
Transmission and distribution systems: Implementing supervisory control for substations.
Industrial power automation: Providing protection and logic control for large motors, generators, and high-value electrical assets.
Plant and process control: Integration into SCADA and energy management systems requiring high reliability.
Specifications
| Specification | Details |
|---|---|
| Model / Part No. | UR9WH (UR‑9WH) |
| Product Type | CPU Module for Universal Relay (UR) family |
| Manufacturer | General Electric (GE) |
| Series Compatibility | GE Multilin Universal Relay (UR) platform |
| Primary Function | Core processing & control logic execution |
| Communication Interfaces | RS‑485 / Ethernet (system dependent) |
| Typical Operating Voltage | 24–48 V DC or AC variants depending on chassis |
| Operating Temp. | –40 °C to +70 °C (industrial range) |
| Dimensions | Approx. 3.8 × 11.5 × 4.5 cm |
| Weight | ~0.2 kg |
| Mounting | Plug‑in CPU slot of UR relay chassis |
| Origin | USA |
Product FAQ – UR9WH
UR9WH
Q1: Which system does the UR9WH module belong to?
A: It is the CPU processor module for GE Multilin Universal Relay (UR) series protection and control hardware.
Q2: Can the UR9WH operate independently?
A: No-it must be installed in a UR relay chassis equipped with supporting I/O and power modules to function.
Q3: What types of interfaces does it provide?
A: It typically supports serial (RS-485) and Ethernet communication for system integration.
Q4: In which fields is it applied?
A: It is applied in power protection, substation automation, industrial control panels, and critical infrastructure fields requiring robust real-time protection and control logic execution.
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