Description
REF615 is a dedicated feeder protection and control relay for protection, control, measurement and supervision of overhead lines and cable feeders in utility and industrial power distribution systems, including radial, looped and meshed distribution networks, with or without distributed power generation. Product benefits • Extensive range of protection and control functionality, either with sensors or conventional instrument transformers • Ready-made standard configurations for fast and easy setup with tailoring capabilities • Withdrawable plug-in unit design for swift installation and testing • Large graphical display for showing customizable SLDs, accessible either locally or through an easy-to-use web-browser-based HMI • Extensive life-cycle services Product features • Directional and non-directional overcurrent and earth-fault protection, voltage, frequency and power based protection and measurement functionality • Extensive earth-fault protection portfolio with unique multi-frequency admittance-based protection for higher sensitivity and selectivity • Optional advanced and fast fault location of short circuits and earth faults, arc protection and high-speed outputs
REF615 is a dedicated feeder protection andcontrol relay designed for the protection,control, measurement and supervision ofutility substations and industrial powersystems including radial, looped and mesheddistribution networks with or withoutdistributed power generation. REF615 is amember of ABB’s Relion ® product family andpart of its 615 protection and control productseries. The 615 series relays are characterizedby their compactness and withdrawable-unitdesign. Re-engineered from the ground up, the 615series has been designed to unleash thefull potential of the IEC 61850 standard forcommunication and interoperability betweensubstation automation devices. The relay provides main protection foroverhead lines and cable feeders in distributionnetworks. The relay is also used as backup protection in applications, where anindependent and redundant protection systemis required.
REF615 is available with twelve alternativestandard configurations. The standard signalconfiguration can be altered by meansof the signal matrix or the graphicalapplication functionality of the Protectionand Control IED Manager PCM600. Further,the application configuration functionality ofPCM600 supports the creation of multi-layerlogic functions using various logical elements,including timers and flip-flops. By combiningprotection functions with logic function blocks,the relay configuration can be adapted touserspecific application requirements. The relay is delivered from the factory withdefault connections described in the functionaldiagrams for binary inputs, binary outputs,function-to-function connections and alarmLEDs. Some of the supported functions inREF615 must be added with the ApplicationConfiguration tool to be available in the SignalMatrix tool and in the relay. The positivemeasuring direction of directional protectionfunctions is towards the outgoing feeder.
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