The ABB RET316*4 HESG448750M2 Numerical Transformer Protection Relay is an advanced digital protection device developed by ABB for efficient and reliable transformer protection and control. Designed for both two- and three-winding transformers, autotransformers, and generator-transformer blocks, this brand-new ABB RET316*4 relay ensures complete transformer monitoring, fault detection, and operational safety.

Built on ABB’s state-of-the-art numerical relay technology, the RET316*4 HESG448750M2 offers rapid, selective, and stable protection against transformer faults such as differential, over-current, thermal overload, and over-excitation conditions. It features fully digital signal processing, high-speed response, and advanced logic programming, making it ideal for modern power systems and digital substations.

The relay supports multiple protection and control functions including differential protection, restricted earth-fault protection, over-current protection, voltage and frequency supervision, and breaker failure protection. Its built-in self-diagnostic features continuously monitor the system’s status to ensure fault-free operation and early detection of abnormalities.

The ABB RET316*4 HESG448750M2 also offers flexible communication options with support for industry-standard protocols such as IEC 61850, IEC 60870-5-103, Modbus®, DNP3, and Profibus DPV1. This allows seamless integration with ABB and third-party substation automation systems.

Its compact modular design makes installation and maintenance easy, with options for DIN rail or panel mounting. The relay’s wide operating temperature range and IP20 ingress protection ensure reliable performance even in demanding industrial environments.

With the ABB RET316*4 Numerical Transformer Protection Relay, users gain dependable transformer protection, simplified configuration, and extended equipment lifespan — all backed by ABB’s global engineering excellence.

Key Features

• Model: ABB RET316*4 HESG448750M2 Numerical Transformer Protection Relay

• Condition: 100% Brand New and Original ABB Product

• Manufacturer: ABB

• Comprehensive protection functions: differential, restricted earth fault, over-current, over-voltage, over-excitation, frequency, and breaker failure protection

• Supports multiple transformer types: two-winding, three-winding, autotransformers, and generator-transformer blocks

• Communication protocols: IEC 61850, IEC 60870-5-103, Modbus®, DNP3, Profibus DPV1

• Advanced logic configuration: multi-layer logic, timers, and programmable interlocks via PCM600 software

• Self-diagnostic and event recording features for continuous monitoring

• Compact design: 135 mm × 67.5 mm × 28 mm; weight approx. 1.5 kg

• Ingress Protection: IP20

• Operating Temperature: −20 °C to +55 °C

• Mounting Type: DIN rail or panel mounting

• Applications: Power plants, substations, industrial transformer protection

  Contact Information:

  Evaflux Private Limited
  📞 Phone: +91 7303573946
  📧 Email: support@evaflux.com