Product Short Description
Product Introduction
The GE Multilin URSHA is a high‑reliability, redesigned power supply module built exclusively for GE Multilin UR Series Universal Relays. It serves as the main power backbone for the entire relay system, delivering stable, regulated, and fully isolated power to the CPU, analog I/O, digital I/O, communication modules, and field dry‑contact inputs. Engineered for high‑voltage field environments and heavy‑duty utility applications, this module combines high efficiency, full galvanic isolation, and conformal coating for reliable operation in harsh conditions.
Description
Technical Specifications
Electrical Specifications
- Product Type: Redesigned High‑Voltage Power Supply Module
- Series: GE Multilin UR Series Universal Relays
- Input Voltage: 125–250 VAC / 125–250 VDC (wide range)
- Output Voltage: 24 VDC regulated
- Output Power: 40 W maximum
- Input Frequency: 47–63 Hz (AC input)
- Isolation Voltage: 2500 VDC (input‑to‑output, input‑to‑backplane)
- Efficiency: >90% typical
- Overcurrent Protection: Internal resettable fuse
- Auxiliary Power Output: Supports dry contact input power
- Software Monitoring: Full diagnostics via EnerVista UR software
Physical & Environmental Specifications
- Mounting: Horizontal plug‑in chassis mounting
- Conformal Coating: Standard for harsh environment protection
- Operating Temperature: -40°C to +70°C
- Storage Temperature: -55°C to +85°C
- Relative Humidity: 0–95% RH (non‑condensing)
- Ingress Protection: IP20 (enclosed chassis installation)
- Pollution Degree: 3 (heavy industrial environment)
- Vibration Resistance: 5g RMS (10–500 Hz)
- Shock Resistance: 15g (20 ms half‑sine wave)
- Certifications: IEC, ANSI, IEEE, UL/cUL, CE, CSA
Key Features
- High‑Voltage Compatibility: Supports 125–250 VAC/DC input for utility and industrial substations.
- Redesigned 2014 Platform: Improved thermal performance and component reliability.
- Full Galvanic Isolation: Protects relay logic from surges, ground loops, and electrical noise.
- Conformal Coating: Resists moisture, dust, and chemical contamination in harsh sites.
- High‑Efficiency Conversion: Minimizes heat generation and extends service life.
- Hot‑Swappable Design: Replacement without system shutdown to reduce downtime.
- Front‑Panel LED Indicators: Real‑time status for power normal, fault, and alarm conditions.
- Comprehensive Self‑Diagnostics: Continuous monitoring of input, output, and module health.
- Seamless UR Series Integration: Plug‑and‑play with all UR chassis and module types.
- Industrial‑Grade Ruggedness: Stable operation in extreme temperatures and high vibration.
Application Scenarios
- Transmission & Distribution Substations: Primary power for feeder, transformer, and busbar protection relays.
- Power Generation Plants: Generator protection, excitation systems, and auxiliary power control.
- Oil & Gas Facilities: Drilling rigs, pumping stations, and processing plant power systems.
- Mining Operations: Surface and underground power distribution and protection.
- Water & Wastewater Treatment: Pump stations and automated treatment systems.
- Data Centers: Critical power distribution and UPS control relay power.
- Marine & Offshore Installations: Vessel and platform electrical protection systems.
- Renewable Energy: Wind and solar farm grid interconnection protection.
- Heavy Manufacturing: Steel, cement, and chemical plant power management.
- Railway & Transportation: Traction power substations and signaling systems.
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