GE F31X134EPRBHG1 | Relay Module Fast Shipping

Description

Product Introduction

This GE F31X134EPRBHG1 is a high-performance protection relay board with fiber-optic communication for GE’s excitation and power conversion control platforms. The “H” suffix indicates the inclusion of a fiber-optic communication interface, providing complete electrical isolation and immunity to electrical noise. This board is designed for distributed protection applications in high-EMI environments or where communication distances exceed copper limits.

The board provides comprehensive protection functions for generator and excitation systems—overvoltage, undervoltage, overcurrent, loss of excitation, directional overcurrent, and loss-of-field protection. The fiber-optic interface enables communication with other protection boards or a central controller over long distances. The board includes expanded I/O, enhanced fault logging, and diagnostic features. The fiber-optic link provides complete galvanic isolation, eliminating ground loop issues.

Key Technical Specifications

Key Selling Points & Differentiators

• Fiber-Optic Communication: Complete electrical isolation between protection boards. Immune to electrical noise. Eliminates ground loop issues.
• Long-Distance Communication: Supports fiber-optic connections up to 2 km. Enables distributed protection systems with physically separated components.
• Comprehensive Protection: Provides overvoltage, undervoltage, overcurrent, directional overcurrent, loss of excitation, and loss-of-field protection.
• Quantified Testing Protocol: We test all protection functions for accurate setpoint response, verify fiber-optic communication, and confirm system integration.
• Warranty & Support: 2-year functional warranty. We include a fiber-optic installation guide and cleaning kit.

Frequently Asked Questions (FAQ)

Q1: What is the difference between the EPRBHG1 and the Ethernet EPRBEG1?

A: The EPRBEG1 uses Ethernet (copper) communication. The EPRBHG1 uses fiber-optic communication. The fiber-optic interface provides complete electrical isolation and immunity to noise, but uses GE’s proprietary protocol rather than standard Ethernet.

Q2: What fiber-optic connectors does the board use?

A: The board uses standard ST connectors. We recommend using 62.5/125 µm multimode fiber. Clean the connectors with a fiber-optic cleaning pen before installation.

Q3: Does the fiber-optic interface use standard Ethernet protocols?

A: No, the fiber-optic interface uses GE’s proprietary communication protocol designed specifically for protection systems. It is not standard Ethernet.

Q4: What is the maximum fiber-optic distance?

A: The board supports up to 2 km with standard multimode fiber. Each segment is 2 km. The actual distance depends on fiber quality and connector losses.

Q5: Can the EPRBHG1 replace a standard protection board?

A: Yes, the board is mechanically and electrically compatible. The fiber-optic communication is an additional capability—the board can operate with or without the fiber-optic connection.

Q6: What is the lifecycle status of the EPRBHG1?

A: This board is extremely rare. GE produced the EPRBHG1 in very limited quantities for distributed protection applications. We have a very small batch of new surplus units. If your system requires fiber-optic communication, we strongly recommend securing a spare. We do not expect to source more of this variant.

ABB YPP110A
Yamatake EST0240Z05WBX00
ABB RDCU-02C
WESTINGHOUSE 1C31166G02