GE B30TG3BLHF8RH6

Product Overview

The GE B30TG3BLHF8RH6 is a Multilin B30 bus differential protection relay designed for electrical power system protection and monitoring. It belongs to GE's Universal Relay (UR) product family and is used to protect busbar systems in substations, power plants, and industrial electrical networks.

The relay continuously monitors electrical current conditions across connected feeders. By comparing current measurements, it can identify internal busbar faults and initiate appropriate protection actions. Its integrated protection and control functions help improve electrical system reliability and operational safety.

Technical Specifications

Parameter	Description
Brand	General Electric (GE)
Model	B30TG3BLHF8RH6
Product Series	Multilin B30
Product Type	Bus Differential Protection Relay
Protection Method	Low-Impedance Differential Protection
Main Function	Busbar Fault Protection
Relay Platform	Universal Relay (UR)
Communication	Configuration-dependent
Installation	Protection and Control Cabinet
Application	Power Distribution Systems

Main Features

• High-speed differential protection for busbar fault detection.

• Restrained and unrestrained differential protection functions.

• CT saturation detection and ratio mismatch compensation.

• Integrated breaker failure protection.

• Programmable logic for customized protection sequences.

• Electrical measurement and event recording capabilities.

• Flexible integration with substation automation systems.

Hardware Structure

The B30 relay uses a modular hardware architecture. Its internal components can include a central processing unit, power supply, current and voltage measurement interfaces, digital input/output modules, and communication interfaces.

The modular design allows the relay to accommodate different protection and monitoring requirements. The exact hardware arrangement depends on the complete ordering configuration.

Application Areas

The GE B30TG3BLHF8RH6 is suitable for:

• Electrical power substations.

• Thermal and hydroelectric power plants.

• Industrial power distribution networks.

• High-voltage and medium-voltage switchgear.

• Busbar protection systems.

• Large-scale electrical infrastructure.

Installation and Maintenance

The relay should be installed in an appropriate protection cabinet with proper grounding and environmental conditions. Current transformer wiring, control power connections, and communication interfaces must follow the corresponding GE wiring documentation.