Electrical reference directory

Page 24 of 32 · 3155 references, with definitions, drawing context and available downloads and previews.

Search the electrical library

Online double-conversion UPSUPS VFI · SLD Op-amp comparator with hysteresisCOMP-H · Schematic Op-amp differentiatorDIFFERENTIATOR · Schematic Op-amp integratorINTEGRATOR · Schematic Op-amp voltage followerBUF · Schematic Open-collector bufferOC-BUF · Schematic Open-delta voltage transformer connectionVT · SLD / Schematic Open-delta winding connectionOPEN D · SLD / Schematic Operating mechanism84 · SLD / Schematic Operational amplifierOP-AMP · Schematic Operational transconductance amplifierOTA · Schematic Optical beam smoke detector plan symbolBD · GA Optical current measurement processing interfaceOCMPI · Schematic Optical current sensorOCT · SLD Optical fibre cableOF · Schematic / SLD Optical tachometric transducerHIN1B13 · Schematic OR gateOR · Schematic OscilloscopeOSC · Schematic Outbound-energy-flow qualifierQ020506 · SLD / Schematic Outdoor energy-storage containerGA · GA / SLD Outdoor post-insulator support referenceOPSR · Schematic Overexcitation protection24 · SLD / Schematic Overfrequency protection81O · SLD / Schematic Overhead lineOHL · SLD / GA Overhead-line outgoing bay arrangementOOBA · Schematic Overspeed device12 · SLD / Schematic Overvoltage59 · SLD / Schematic P-channel enhancement MOSFETP-MOS · Schematic P-channel JFETP-JFET · Schematic Panel inspection lightingGA · GA / SLD Panel inspection-light door contactPIDC · Schematic Panel power meterGA · GA / Schematic Panel service outletGA · GA / SLD Pantograph bus-selector referencePBR · Schematic Parallel-in serial-out registerPISO · Schematic Parallel-transformer tap-control coordinatorPTC · Schematic Parity generator / checkerPARITY · Schematic Partial discharge sensorPD · SLD / Schematic Partial-V winding connectionQ060202 · SLD / Schematic Passive battery cell balancerBAL R · Schematic PEN conductor markPEN · SLD / Schematic Percentage-biased differential current relayK · Schematic / SLD Perforated cable trayGA · GA / SLD Permanent-magnet DC motorM DC PM · SLD / Schematic Permanent-magnet linear DC motorHMO1M14 · SLD / Schematic Permanent-magnet stepping motorHMO1M15 · SLD / Schematic Permanent-magnet synchronous generatorG 3PH PM · SLD / Schematic Permissive control device69 · SLD / Schematic Permissive overreach transfer-trip interfacePOTI · Schematic Permissive underreach transfer-trip interfacePUTI · Schematic Pfannenberg DTFS 6041 enclosure cooling unitDTFS 6041 · GA Phase distance protection21P · SLD / Schematic Phase-angle meterPHASE · SLD / Schematic Phase-angle or out-of-step protection78 · SLD / Schematic Phase-discontinuity protection46PD · SLD / Schematic Phase-locked loopPLL · Schematic Phase-loss monitoring relayPH LOSS · SLD / Schematic Phase-sequence indicatorPSI · Schematic Phase-sequence or voltage-balance protection47 · SLD / Schematic Phase-shifted full-bridge topologyPSFB · Schematic / SLD Phase-to-earth carrier coupling arrangementPCCA · Schematic Phase-to-neutral voltmeter selectorHSW1S91 · Schematic Phase-to-phase carrier coupling arrangementPCCA · Schematic Phase-to-phase voltmeter selectorHSW1S90 · Schematic Phasor measurement unitPMU · SLD / Schematic PhotodiodePD · Schematic Photodiode optocouplerOPTO-PD · Schematic Photoelectric emitter-receiver switchPHOTO · Schematic Photoelectric light switch plan markPE · GA Phototransistor optocouplerOPTO-TR · Schematic Phototriac optocouplerOPTO-TRIAC · Schematic Photovoltaic arc-fault detectionPV AFD · Schematic Photovoltaic generatorPV GEN · SLD / Schematic Photovoltaic inverterPV INV · SLD / Schematic Photovoltaic modulePV MOD · Schematic Photovoltaic MOSFET driverPV-DRV · Schematic Photovoltaic power optimiserPV OPT · Schematic Photovoltaic rapid shutdown functionRSD · Schematic Photovoltaic stringPV STR · Schematic Photovoltaic string combinerCOMB · Schematic Pilot or carrier receiver relay85 · SLD / Schematic Pilot-light stationGA · GA / Schematic PIN diodePIN · Schematic PLC analog inputAI · Schematic PLC analog outputAO · Schematic PLC CPU moduleGA · GA / Schematic PLC digital inputDI · Schematic PLC input / outputPLC I/O · Schematic PLC power moduleGA · GA / Schematic PLC relay outputDO RELAY · Schematic PLC temperature inputTI · Schematic PLC transistor outputDO TRANS · Schematic Plug and jack with common pin numberX · Schematic Plug and socket connector pairPLUG SOCKET · Schematic Plug-in buswayBD · SLD / GA Plug-in terminal blockTB PLUG · Schematic Pluggable terminal connectorGA · GA / Schematic Pneumatic operating-pressure supervisionPOS · Schematic PNP bipolar transistorPNP · Schematic PNP Darlington transistorPNP-DAR · Schematic