TheABB RET615is a dedicated transformer protection and control relay designed for the protection, control, measurement, and supervision of power transformers in utility and industrial power distribution systems.
Key Product Features
Transformer Differential Protection:Advanced and high-speed differential logic specifically tuned for two-winding transformers, providing high stability during inrush currents.
Neutral Earthing Flexibility:Supports both high-impedance and numerically low-impedance restricted earth-fault (REF) principles to match various system earthing options.
Ready-Made Configurations:Ships with standard configurations tailored to the most common vector groups, ensuring fast setup with minimal manual tailoring.
Advanced Communications:Fully supports IEC 61850 (Editions 1 and 2) with HSR and PRP redundancy, GOOSE messaging, and IEC 61850-9-2 LE for digitalized process bus communication.
Protocol Interoperability:Native support for Modbus, DNP3, and IEC 60870-5-103 industrial communication protocols.
High-Accuracy Timing:Includes IEEE 1588 V2 support for sub-microsecond time synchronization across the substation Ethernet network.
Safety Options:Available with optional arc protection and high-speed outputs to mitigate thermal stress during internal fault events.
Production & Engineering Benefits
Compact & Versatile:Integration of protection, monitoring, and control into a single relay reduces the hardware footprint in the switchgear and simplifies installation.
User-Friendly HMI:The large graphical display allows for customized single-line diagrams (SLDs), accessible locally or via a secure web-browser-based interface.
Maintenance Efficiency:The withdrawable plug-in unit allows for swift installation, testing, and replacement, significantly reducing maintenance-related downtime.
Tailored Protection:While ready-made configurations are provided, the relay offers extensive tailoring capabilities to match unique site-specific requirements.
