GE C60TG3HLH Multilin C60 Breaker Protection and Control Relay

GE C60TG3HLH Multilin C60 Breaker Protection Relay

The GE C60TG3HLH, also cataloged as the C60TG3HLH Breaker Protection and Control Relay, operates as a dedicated hardware component for fault detection and breaker management within dual-breaker busbar configurations for utility and industrial power distribution networks.

Hardware Specifications

Deterministic Network Connectivity and Firmware Scaling

The C60TG3HLH leverages the Universal Relay (UR) platform to execute protection algorithms with high deterministic speed, essential for rapid breaker tripping during fault conditions. The relay supports integration into Ethernet-based substations utilizing the IEC 61850 protocol, allowing for seamless data exchange with SCADA or DCS platforms. Its firmware architecture enables I/O density scaling and provides support for modular communication cards, ensuring firmware flash compatibility across varied substation automation schemes. The system processes up to four sets of CT inputs, either through direct conventional copper wiring or via digitized IEC 61850 process bus streams, maintaining precise synchronization for metering and disturbance recording functions.

Frequently Asked Questions

Q: Does the C60TG3HLH support hot-swapping of the withdrawable chassis?

A: Yes, the withdrawable chassis design allows for physical module removal; however, ensure all CT secondary circuits are shorted at the test block before withdrawal to prevent high-voltage build-up.

Q: How does the relay maintain timing precision for sequence of events (SOE) recording?

A: The relay utilizes an internal high-resolution clock synchronized via SNTP or IRIG-B protocols over the communication network, ensuring sub-millisecond precision for fault disturbance records.

Field Installation Guidelines

Mount the C60TG3HLH in a panel-cutout providing adequate clearance for the withdrawable chassis mechanism. Ensure the rear terminal blocks are wired according to the specific configuration drawing, maintaining clear separation between high-voltage CT/VT leads and low-voltage communication cables to prevent signal interference. Apply a protective earth (PE) connection to the chassis stud to guarantee electromagnetic compatibility and surge protection effectiveness. Prior to full commissioning, perform a secondary injection test on the CT inputs to verify relay sensing accuracy and trip logic execution. Terminate Ethernet communication cables using shielded Category 6 connectors to maintain protocol integrity in the substation environment.