Sepam - HV/MV Protection and control units (ENG) - Trinet

Residual voltageOperationThis function gives residual voltage value–> –> –>(V1 + V2 + V3). It is measured by taking the internalsum of the 3 phase voltages or by a star / opendelta VT.Vo = residual voltageVo’ = residual voltage.It is based on measurement of the fundamentalcomponent.Characteristicsmeasurement rangeunitaccuracydisplay unit and pocket terminal formatresolutionrefresh interval0.015 Un to e UnV or kV±5% or ±1 digit3 significant digits1 V1 second (typical)ReadoutThis measurement may be accessed via:c the pocket terminal, add. reading menu,V residual, V’ residual heading,c the communication link.SensorsThis function is related to the voltages connectedto the following connectors:Measurement of voltage VoSepamconnectorS36* 4A (1)S26* 3A(1)3A connector for S36*TR and S36TS modelsMeasurement of voltage Vo’SepamconnectorS36*TR4AS36TS4A* or S35, S25 for earlier versions.** available as of version 9940 SFT2800.Metering functions1/13