ABB REF 610 Technical Reference Manual

Also see for RELION REF610: Technical reference manual Operator's manual Technical reference manual Product guide

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ABB REF 610 Technical Reference Manual Manual pdf 10 page image

101MRS 755535Feeder Protection RelayTechnical Reference Manual - ANSI VersionREF 6103. Instructions3.1. ApplicationREF 610 is a versatile multifunction protection relay mainly designed for protectionof incoming and outgoing feeders in MV distribution substations. REF 610 can alsobe used as back-up protection for motors, transformers and generators, in industrialas well as in utility applications.The large number of integrated protection functions, including three overcurrentprotection elements, non-directional ground-fault protection elements as well asthermal protection, makes REF 610 a complete protection against overcurrent andground faults.The optional arc protection for detection of arc situations in air insulated metal-cladswitchgears and the auto-reclose function for automatic clearing of overhead linefaults increase the range of applications further.The large number of digital inputs and output contacts allows a wide range ofapplications.3.2. RequirementsTo secure correct and safe operation of the relay, preventive maintenance isrecommended to be performed every five years when REF 610 is operating underthe specified conditions; see below and section Technical data.When being used for real-time clock or recorded data functions, the battery shouldbe changed every five years.Environmental conditions3.3. ConfigurationSetting and connection examplesThe appropriate configuration of the output contact matrix enables the use of thesignals from the protection elements as contact functions. The pickup signals can beused for blocking co-operating protection relays and signalling.Fig. 3.3.-1 and Fig. 3.3.-2 represent REF 610 with the default configuration: all tripsignals are routed to trip the circuit breaker. In Fig. 3.3.-1, the residual current ismeasured via a core-balance current transformer and the output contacts areconnected to enable the use of the auto-reclose function. In Fig. 3.3.-2, the residualcurrent is measured via a summation connection of the phase current transformersand the output contacts are connected to enable the use of the trip lockout function.• Recommended temperature range (continuous) -10...+55°C• Limit temperature range (short-term) -40...+70°C• Temperature influence on the operation accuracy of theprotection relay within the specified service temperature range0.1%/°C• Transport and storage temperature range -40...+85°C