TheRET615Eis an enhanced, high-performance Transformer Protection and Control Relay engineered by ABB as part of the industry-standardRelion 615 product family.
Technical Specifications
Manufacturer: ABB
Product Series Family: Relion 615 Enhanced Product Series
Model Number Designation:RET615E
Device Classification: Enhanced Two-Winding Power Transformer Management & Control IED
Core Protection Profiles: High-speed transformer differential, overvoltage, undervoltage, frequency protection, and comprehensive thermal overload tracking
Supported Communication Protocols: IEC 61850 (Ed. 1 & 2), IEC 61850-9-2 LE (Sampled Values), Modbus, DNP3, and IEC 60870-5-103
Time Synchronization Protocol: IEEE 1588 V2 Precision Time Protocol (PTP) for sub-microsecond synchronization
Hardware Form Factor: Compact withdrawable plug-in core assembly with automatic CT shorting mechanisms
Human Machine Interface (HMI): Large graphical local display screen featuring customizable Single Line Diagrams (SLD), with secure embedded web-browser HMI access
Safety Options Expansion: Factory-ready support for optional high-speed optical arc flash detection and ultra-fast output contacts
Industrial Application Scenarios
TheRET615Eenhanced transformer protection relay is deployed within high-reliability infrastructure, heavy process industrial plants, data center substations, and utility transmission bays. In these high-demand applications, maintaining power continuity while shielding multi-million dollar transformer windings from fault currents is vital. TheRET615Eis installed inside main switchgear panels to serve as the primary line guard. It continuously samples current phases on both sides of a two-winding transformer. If an internal transformer failure occurs, or if its optional optical sensors detect anarc flashinside the switchboard cabinet, the relay acts immediately. It triggers its high-speed output contacts to open the circuit breaker in milliseconds, cutting off electrical energy before widespread thermal damage can spread.
