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Overview
The Hitachi Energy REC670 represents advanced bay control technology within the RELION® product line. This multifunctional device combines protection, control, monitoring, and communication capabilities in a single unit, providing complete solutions for high-voltage substation bays including feeders, transformers, and other primary equipment.

Key Features & Benefits:

• Integrated Protection Functions: Comprehensive protection including distance protection, differential protection, overcurrent protection, and breaker failure protection

• Advanced Control Capabilities: Flexible control logic for bay-level automation and interlocking functions

• Condition Monitoring: Integrated monitoring of primary equipment condition and performance

• IEC 61850 Compliance: Full support for IEC 61850 edition 2 communication standard including GOOSE and Sampled Values

• Cyber Security Features: Advanced security mechanisms to protect against cyber threats

• User-Friendly Configuration: Intuitive tools for easy setting and operation

Technical Specifications:

• Product Family: RELION® 670 Series

• Order Number: 1MRK002814-AC

• Application: Bay Control and Protection

• Protection Functions: Distance protection, transformer differential, line differential, breaker failure protection

• Communication: IEC 61850, IEC 60870-5-103/104, DNP3, Modbus

• Mechanical Design: Robust construction for substation environments

Typical Applications:

• Transmission line protection and control

• Transformer protection and control

• Busbar protection schemes

• Shunt reactor compensation control

• Substation automation systems

Note: For complete technical specifications and application guidelines, refer to the official Hitachi Energy REC670 product documentation. Proper configuration requires expertise in power system protection and substation automation.