Transformer Protection and Control Relay RET615

Description

RET615 is a dedicated transformer protection and control relay for power transformers, unit and step-up transformers including power generator-transformer blocks in utility and industry power distribution systems. RET615 is a member of ABB’s Relion® product family and part of its 615 protection and control product series. The 615 series relays are characterized by their compactness and withdrawable-unit design. Re-engineered from the ground up, the 615 series has been designed to unleash the full potential of the IEC 61850 standard for communication and interoperability between substation automation devices.

Product 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