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
-
Manufacturer: General Electric (GE)
-
Model: UR77H
-
Type: Inter-Relay Communications Module
-
Function: Relay-to-relay communications
-
Communication Standard: IEEE C37.94
-
Transmission Medium: Multimode fiber optic
-
Wavelength: 820 nm
-
Number of Channels: 2
-
Indicators: LED status indicators for diagnostics
-
Mounting Orientation: Horizontal installation within UR chassis
-
Dimensions: 280 mm × 115 mm × 45 mm
-
Weight: 0.6 kg
-
Country of Origin: USA
Key Features
-
Enables exchange of digital status and analog values between UR relays
-
Supports fast tripping and teleprotection applications
-
Noise-immune fiber-optic communication for reliable performance
-
Compact modular design for seamless integration into UR systems
-
Built for demanding industrial and utility environments
Applications
-
Substation automation requiring relay-to-relay communication
-
Power system protection and coordination
-
Teleprotection schemes for transmission lines
-
Industrial control systems with distributed relay networks
FAQ
-
Q: What communication standard does the UR77H support? A: It complies with IEEE C37.94 for inter-relay communication.
-
Q: How many channels are available? A: The UR77H provides 2 fiber-optic channels.
-
Q: What wavelength does the module operate at? A: It uses 820 nm multimode fiber optic transmission.
-
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
Evolving SCADA System Architectures in Industrial Automation
A robust Supervisory Control and Data Acquisition (SCADA) system serves as the heartbeat of modern industrial operations. Understanding SCADA system architecture is vital for engineers designing efficient control systems. These architectures have evolved from isolated, monolithic structures to highly interconnected, networked ecosystems. Choosing the right design requires balancing data visibility, processing power, and long-term scalability requirements.
Choosing the Right Controller: PLC vs. Motion Controller in Industrial Automation
Selecting the optimal control architecture is a foundational decision in industrial automation. Engineers must frequently choose between a Programmable Logic Controller (PLC) and a dedicated Motion Controller. While both systems manage machinery, their underlying design philosophies differ significantly, impacting performance, scalability, and system integration.
Mastering PLC Power Supply Architectures and Operating Voltages
Selecting the correct operating voltage is a critical step in designing reliable industrial automation systems. Whether you are working with a compact PLC or a large-scale DCS, your power architecture dictates the system's longevity. In this guide, we explore the standard voltage ranges and power distribution strategies required to maintain stable factory automation operations.