Compact and versatile solution for utility and industrial power distribution systems

RET615 is a dedicated transformer protection and control relay for protection, control, measurement and supervision of power transformers, unit and step-up transformers, including power generator-transformer blocks, in utility and industrial power distribution systems.

RET615 is a member of ABB’s Relion^® product family and part of its 615 protection and control series of relays

Scope

• Protection for two-winding power transformers including differential protection

Production benefits

• Compact and versatile solution for utility and industrial power distribution systems with integration of protection, control, monitoring and supervision in one relay
   
• Extensive range of protection and control functionality for two-winding power transformers, including advanced and fast differential protection with high inrush stability
   
• Ready-made standard configurations – matching the most commonly employed vector groups – for fast and easy setup with tailoring capabilities
   
• Withdrawable plug-in unit for swift installation and testing
   
• Large graphical display showing customizable SLDs, accessible either locally or through an easy-to-use web-browser-based HMI
   
• Extensive life-cycle services

Product features

• Transformer differential with voltage protection and measurement functionality
   
• Supports various neutral earthing options, matching either high-impedance or numerically low-impedance restricted earth-fault principles
   
• Optional arc protection and high-speed outputs
   
• Supports IEC 61850 Editions 1 and 2, including HSR and PRP, GOOSE messaging and IEC 61850-9-2 LE for less wiring and supervised communication
   
• IEEE 1588 V2 for high-accuracy time synchronization and maximum benefit of substation-level Ethernet communication
   
• Supports Modbus, DNP3 and IEC 60870-5-103 communication protocols