ABB RET316*4 HESG448750M2 Transformer Protection Relay

Description

ABB RET316*4 HESG448750M2 is a numerical transformer protection relay designed for fast, selective protection of two- or three-winding transformers, including autotransformers and generator-transformer blocks.

Specifications

• Model: RET316*4
• Part Number: HESG448750M2
• Manufacturer: ABB
• Function: Transformer protection, control, measurement, supervision
• Protection Types: Differential, overcurrent, overvoltage, thermal overload, distance
• Dimensions: 135 mm × 67.5 mm × 28 mm
• Weight: 1.5 kg
• Condition: New & in stock
• Origin: Switzerland
• Certifications: CE
• Warranty: 12 months

Features

• Multi-Winding Support: Protects two- or three-winding transformers and autotransformer configurations.
• Advanced Fault Detection: Identifies phase faults, earth faults, and interturn faults.
• Comprehensive Protection: Includes differential, overcurrent, thermal, and distance protection functions.
• Compact Design: Small footprint for easy cabinet integration.
• Reliable Performance: Ensures stable operation in utility and industrial power systems.
• Flexible Communication: Supports IEC 61850, Modbus®, DNP3, Profibus DPV1, and more.