Product Short Description
Product Introduction
The GE Multilin UR6DH is a high‑density, microprocessor‑based digital I/O expansion module engineered exclusively for the GE Multilin UR Series Universal Relays. It provides a robust interface between the UR relay’s core logic and field‑side equipment, delivering 16 isolated digital inputs and 16 isolated digital outputs for reliable signal acquisition and control execution. Designed for mission‑critical power system applications, this module enables precise monitoring of switchgear status, breaker positions, and auxiliary signals, while executing fast, reliable control commands to field devices. It integrates seamlessly into UR‑series relay chassis, supporting system scalability and enhancing the relay’s capability to manage complex automation and protection schemes in demanding electrical environments.
Description
Technical Specifications
Electrical Specifications
- Product Type: Digital I/O Expansion Module
- Series: GE Multilin UR Series Universal Relays
- I/O Configuration:
- Digital Inputs (DI): 16 channels, configurable as dry contact or wet contact (24–250 VDC/VAC)
- Digital Outputs (DO): 16 channels, Form‑C (SPDT) relay contacts
- Input Voltage Range: 24 VDC to 250 VDC / 24 VAC to 250 VAC
- Output Contact Rating: 2 A per channel at 250 VDC / 250 VAC (resistive load)
- Isolation: 2,500 VDC full galvanic isolation between input/output and relay logic
- Response Time: < 0.1 ms for input detection and output actuation
- Input Impedance: 100 kΩ
- Power Supply: 24 VDC (supplied by UR relay chassis)
- Software Compatibility: Fully integrated with GE EnerVista UR software suite
- Certifications: IEC 60947‑2, ANSI, IEEE, UL/cUL, SIL‑2 compliant
Physical & Environmental Specifications
- Dimensions: 152 mm × 178 mm × 38 mm (6” × 7” × 1.5”)
- Weight: 1.13 kg (2.5 lb)
- Mounting: Plug‑in chassis mounting for UR‑series relay racks
- Operating Temperature: -40°C to +70°C (-40°F to +158°F)
- Storage Temperature: -55°C to +85°C (-67°F to +185°F)
- Relative Humidity: 0–95% RH (non‑condensing)
- Ingress Protection: IP20 (enclosed chassis installation)
- Pollution Degree: 3 (industrial power environments)
Key Features
- 16×16 Isolated I/O: Delivers 16 digital inputs and 16 digital outputs with full galvanic isolation, eliminating ground loops and protecting the relay core.
- Wide Voltage Compatibility: Supports 24–250 VDC/VAC for inputs and outputs, ensuring global field device compatibility.
- High‑Speed Response: Sub‑millisecond response time for critical protection and control sequences.
- Sequence of Events Recorder (SER): Built‑in SER captures I/O events with microsecond‑level timestamping for precise fault analysis.
- Hot‑Swappable Design: Supports module replacement without full system shutdown, minimizing operational downtime.
- LED Status Indicators: Front‑panel LEDs for each I/O channel and module health, enabling quick field diagnostics.
- EnerVista Software Integration: Full configuration, monitoring, and diagnostics via GE’s EnerVista UR platform for simplified setup and maintenance.
- Industrial‑Grade Durability: Rugged construction withstands extreme temperatures, humidity, and vibration in harsh industrial settings.
- Scalable I/O Capacity: Enables UR relays to expand I/O capabilities, supporting up to 128 digital I/O points across multiple UR6DH modules in a single system.
- Fail‑Safe Operation: Maintains predefined output states during power interruptions or communication failures.
Application Scenarios
- Power Substation Automation: Monitoring circuit breaker/ disconnect switch positions and controlling auxiliary relays in transmission and distribution substations.
- Transformer Protection Systems: Acquiring tap changer positions and activating alarm/trip circuits for power transformers.
- Generator Control & Protection: Monitoring generator breaker status and controlling excitation systems and safety interlocks in power plants.
- Industrial Motor Control: Monitoring motor starter status and controlling contactors and safety relays in manufacturing facilities.
- Oil & Gas Facilities: Acquiring valve position feedback and controlling pump motors and safety shutdown systems in drilling and refining operations.
- Mining Operations: Monitoring conveyor system status and controlling ventilation fans and underground power distribution equipment.
- Water & Wastewater Treatment: Acquiring pump station status and controlling valve assemblies and treatment process equipment.
- Data Center Power Management: Monitoring UPS and generator status and controlling power distribution unit (PDU) outputs.
- Marine & Offshore Platforms: Monitoring electrical system status and controlling safety alarms and equipment on marine vessels and offshore installations.
- Renewable Energy Systems: Monitoring inverter and grid interconnection status and controlling breaker operations for wind and solar farms.
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