Product Details
Overview
The GE UR77H Inter-Relay Communications Module, part of the Multilin Universal Relay (UR) series, is engineered to enable high-speed fiber-optic communication between UR relays. It supports teleprotection, fast tripping, and coordinated control, ensuring secure and reliable data exchange in modern power system protection schemes.
Technical Specifications
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Manufacturer: General Electric (GE)
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Model: UR77H
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Type: Inter-Relay Communications Module
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Function: Relay-to-relay communications
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Communication Standard: IEEE C37.94
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Transmission Medium: Multimode fiber optic
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Wavelength: 820 nm
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Number of Channels: 2
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Indicators: LED status indicators for diagnostics
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Mounting Orientation: Horizontal installation within UR chassis
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Dimensions: 280 mm × 115 mm × 45 mm
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Weight: 0.6 kg
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Country of Origin: USA
Key Features
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Enables exchange of digital status and analog values between UR relays
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Supports fast tripping and teleprotection applications
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Noise-immune fiber-optic communication for reliable performance
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Compact modular design for seamless integration into UR systems
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Built for demanding industrial and utility environments
Applications
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Substation automation requiring relay-to-relay communication
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Power system protection and coordination
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Teleprotection schemes for transmission lines
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Industrial control systems with distributed relay networks
FAQ
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Q: What communication standard does the UR77H support? A: It complies with IEEE C37.94 for inter-relay communication.
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Q: How many channels are available? A: The UR77H provides 2 fiber-optic channels.
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Q: What wavelength does the module operate at? A: It uses 820 nm multimode fiber optic transmission.
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Q: Is the UR77H suitable for teleprotection? A: Yes, it is specifically designed for fast tripping and teleprotection applications.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
Tech & Buying Guide
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FAT vs SAT in Industrial Control Systems: Key Differences and Execution Guide
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