Electrical reference directory

Page 28 of 32 · 3155 references, with definitions, drawing context and available downloads and previews.

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SPI interface bufferSPI BUF · Schematic Split adjustable capacitorHCA1_S00579 · Schematic Split-core current transformerGA · GA / Schematic Split-phase inverterINV 2x120 · SLD / Schematic Spotlight plan markSPT · GA Spring-charge timeout alarmSTA · Schematic Spring-charged closing permissiveSCP · Schematic Spring-charging motor run contactSMRC · Schematic Spring-charging motor stop contactSMSC · Schematic Spring-return qualifierQ070107 · Schematic Standalone destination cross-referenceHA2D1_REF · Schematic Standalone source cross-referenceHA2S1_REF · Schematic Standby generator auxiliary-service branchSGAB · Schematic Star winding connectionSTAR Y · SLD / Schematic Star winding with accessible neutralY N · SLD / Schematic Star-delta starter assemblyGA · GA / Schematic Star-delta transformerTX Y-D · SLD / Schematic Star-delta transition controllerSTC · Schematic Star-star transformerTX Y-Y · SLD / Schematic Star-star-delta three-winding transformerTX Y-Y-D · SLD / Schematic Star-stator wound-rotor motor with rotor starterHMO1M5 · SLD / Schematic Star-zigzag transformerTX Y-Z · SLD / Schematic Starting circuit breaker6 · SLD / Schematic Starting-to-running transition contactor19 · SLD / Schematic Static frequency converterSFC · SLD Static synchronous compensatorSTATCOM · SLD Static transfer switchSTS · SLD / Schematic Static var compensatorSVC · SLD Station alarm acknowledgement return pathSAARP · Schematic Station alarm timestamp interfaceSATI · Schematic Station analogue scaling interfaceSASI · Schematic Station battery charge-current measurementSBCM · Schematic Station battery condition-monitor gatewaySBCG · Schematic Station battery continuity supervisionSBCS · Schematic Station battery discharge-current measurementSBDM · Schematic Station battery high-voltage alarm blockSBHAB · Schematic Station battery incoming isolation boundarySBIIB · Schematic Station battery low-voltage alarm blockSBLAB · Schematic Station battery temperature-compensation interfaceSBTI · Schematic Station charger AC-failure indicationSCAI · Schematic Station charger boost-charge interfaceSCBI · Schematic Station charger current-limit interfaceSCCI · Schematic Station charger DC-output failure indicationSCDFI · Schematic Station charger float-charge interfaceSCFI · Schematic Station charger redundant-unit sharing interfaceSCRSI · Schematic Station clock holdover-state indicationSCHI · Schematic Station clock loss-of-sync alarmSCLA · Schematic Station communications gateway boundarySCGB · Schematic Station controller watchdog alarm interfaceSCWAI · Schematic Station DC battery rackGA · GA / SLD Station DC bus-tie operating interfaceSDBOI · Schematic Station DC dual-bus segregationSDDS · Schematic Station DC earth-fault location interfaceSDELI · Schematic Station DC essential-load priority mapSDEPM · Schematic Station DC feeder selectivity boundarySDFSB · Schematic Station DC insulation-monitor interfaceSDII · Schematic Station double-point indication interfaceSDII · Schematic Station GNSS time-source interfaceSGTI · Schematic Station IED configuration-revision referenceSICR · Schematic Station local-control ownership interfaceSLOI · Schematic Station RTU command-authority gateSRCG · Schematic Station telemetry stale-data flagSTSF · Schematic Station time-source selection blockSTSB · Schematic Station UTC-local display boundarySUDB · Schematic Station-bus supervisory interfaceSSI · Schematic Station-class surge-arrester connection referenceSSCR · Schematic Station-service transformer bay interfaceSTBI · Schematic Station-service transformer incoming branchSTIB · Schematic Stator ground-fault protection64G · SLD / Schematic Stopping device5 · SLD / Schematic Stored-energy discharged indicationSDI · Schematic SubstationSUBSTATION · SLD / Schematic Substation RTUGA · GA / Schematic Summated phase-current relay inputSPRI · Schematic Summation current transformerΣCT · Schematic / SLD Summation energy meterΣ kWh · SLD / Schematic Supercapacitor bankSC · SLD / Schematic Supply voltage supervisorSVS · Schematic Surge arresterSA · SLD / Schematic Surge arrester counterSC · SLD / Schematic Surge protective device assemblySPD · GA / SLD Surge-arrester disconnector indication interfaceSDII · Schematic Surge-arrester earth-lead interfaceSEI · Schematic Surge-counter earth-path interfaceSEI · Schematic Suspension-insulator conductor referenceSCR · Schematic Switch disconnectorGA · GA / SLD Switch with pilot light plan markSPL · GA Switch-disconnectorSD · SLD / Schematic Switch-disconnector function qualifierQ070104 · SLD / Schematic Switch-position function qualifierQ070106 · Schematic SwitchboardBoard · GA Switched socket outletSSO · GA Switchgear arc exhaust plenumGA · GA / SLD Switchgear panelPanel · GA Switchroom access-control power interfaceSAPI · Schematic Switchroom access-door indicationSAI · Schematic Switchroom airflow-failure alarmSAA · Schematic Switchroom alarm supply redundancy interfaceSASRI · Schematic Switchroom battery-low-voltage inputSBI · Schematic Switchroom charger-failure inputSCI · Schematic