1. Product Overview
The GE UR RHH is a high-performance redundant power supply module from the GE Multilin UR series, purpose-built to deliver stable, uninterrupted power for GE UR series protective relays and industrial automation control systems. Manufactured by General Electric, it is a widely deployed core power component in power generation, power transmission and distribution, industrial motor protection and other scenarios that demand ultra-high power supply reliability, effectively eliminating equipment downtime caused by single power supply failures.
2. Core Technical Specifications
- Manufacturer: General Electric (GE)
- Official Product Model: UR RHH
- Product Type: UR Series Redundant Power Supply Module
- Output Specification: 24 VDC ±1%
- Rated Output Power: 35 W
- Operating Temperature Range: -20 °C to +70 °C
- Storage Temperature Range: -40 °C to +85 °C
- Humidity Tolerance: 5% – 95% RH, non-condensing
- Country of Origin: USA
- Product Weight: 0.95 kg
- Shipping Dimensions: 4 × 18.2 × 17.2 cm
- Tariff Code: 8537101190
- System Compatibility: Fully compatible with all GE Multilin UR series protective relays
- Warranty: 12 months standard for new units
3. Key Features & Advantages
- Ultra-Stable Output Performance: The 24 VDC ±1% high-precision output ensures that the connected UR series protective relays and control equipment will not experience abnormal operation caused by voltage fluctuations, providing a solid power foundation for the reliable operation of protection systems.
- Wide Extreme Temperature Adaptability: The -20 °C to +70 °C operating temperature range allows the module to operate stably in harsh substation and industrial site environments, effectively resisting temperature fluctuations in unheated or uncooled electrical rooms.
- Redundant Architecture Design: The redundant power supply configuration completely eliminates single points of failure in the power input path. Even if one power supply unit fails, the other unit can seamlessly take over the power supply task without interrupting the operation of the protection system.
- High Industrial-Grade Reliability: Manufactured by GE with high-quality industrial components, it has been verified by long-term on-site operation in power systems, with extremely low failure rates and excellent long-term operational stability.
- Easy Installation & Maintenance: The module is designed to match the standard UR series system rack, allowing technicians to complete on-site installation and replacement quickly, no complex wiring or configuration work is required.
4. Typical Applications & Real-World Value
The GE UR RHH power supply module is a mission-critical spare part widely deployed in electric power, heavy industrial and other scenarios that use GE Multilin UR series protection equipment, delivering tangible operational and safety benefits.
- In substation transmission line and transformer protection systems, it provides redundant and highly reliable power support for GE UR series protective relays, ensuring that the protection function will not fail due to power supply anomalies, effectively preventing major power grid safety accidents.
- In large industrial plant medium-voltage motor and generator protection scenarios, the module’s wide temperature tolerance ensures stable operation in harsh industrial electrical room environments, avoiding unplanned motor downtime caused by protection equipment power failures.
- For operation and maintenance teams managing existing GE UR series protection systems, the module is fully natively compatible with all UR series relay products, no additional power conversion accessories are required, allowing users to quickly build a redundant power supply architecture to drastically improve system reliability.
- For power system asset management teams, the module’s 12-month standard warranty and stable spare parts supply effectively extend the service life of existing GE UR protection systems, avoiding the huge cost of replacing the entire protection equipment set.
