Glossary of electrical terms

 


 

Glossary of electrical terms

 

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Glossary of electrical terms

 

Glossary of electrical terms

 

  • 1 core cable
  • 1 pair cable
  • 1 quad cable
  • 1 triple cable
  • 10 core cable
  • 10 pair cable
  • 10 triple cable
  • 12 core cable
  • 12 pair cable
  • 12 triple cable
  • 14 core cable
  • 14 pair cable
  • 14 triple cable
  • 16 core cable
  • 16 pair cable
  • 16 triple cable
  • 19 core cable
  • 19 pair cable
  • 19 triple cable
  • 2 core cable
  • 2 pair cable
  • 2 quad cable
  • 2 triple cable
  • 20 pair cable
  • 20 triple cable
  • 24 core cable
  • 24 pair cable
  • 24 triple cable
  • 27 core cable
  • 27 pair cable
  • 3 pair cable
  • 3 quad cable
  • 3 triple cable
  • 30 pair cable
  • 32 pair cable
  • 32 triple cable
  • 37 core cable
  • 37 pair cable
  • 4 core cable
  • 4 pair cable
  • 4 triple cable
  • 5 core cable
  • 5 pair cable
  • 5 quad cable
  • 50 pair cable
  • 6 core cable
  • 7 core cable
  • 7 pair cable
  • 7 quad cable
  • 7 triple cable
  • 8 pair cable
  • 8 triple cable
  • Ac electrolytic capacitor
  • Ac filter
  • Ac power supply unit
  • Accumulator
  • Actuating system of a control switch
  • Adaptor connector
  • Adjustable constant speed motor
  • Adjustable speed motor
  • Adjustable thermostatic switch
  • Adjustable varying speed motor
  • Aerial insulated cable
  • Air circuit-breaker
  • Air contactor
  • Air switch
  • Air-blast circuit-breaker
  • Air-metal battery
  • Air-to-air cooled machine
  • Air-to-water cooled machine
  • Alarm panel
  • Alkaline air-zinc battery
  • Alkaline manganese dioxide-zinc battery
  • Alkaline primary battery
  • Alkaline secondary battery
  • All-or-nothing relay
  • Alternating current commutator machine
  • Alternating current commutator motor
  • Alternating current generator
  • Alternating current motor
  • Ambient thermostatic switch
  • Amplifier
  • Anode
  • Anti condensation heater
  • Antipollution-type insulator
  • Anti-pumping device
  • Anti-twist cable
  • Arc lamp
  • Arc-chute
  • Arc-control device
  • Arcing contact
  • Associated phase layout substation
  • Asynchronous machine
  • Attended substation
  • Auto-compound current transformer
  • Automatic load restoration equipment
  • Automatic reclosing equipment
  • Automatic reset switch
  • Automatic restoration equipment
  • Automatic switching equipment
  • Auto-transformer
  • Auto-transformer starter
  • Auxiliary contact
  • Auxiliary starting winding
  • Auxiliary switch of a mechanical switching device
  • Auxiliary switchboard
  • Auxiliary terminal box
  • Back-pressure set
  • Ballistic galvanometer
  • Band-pass filter
  • Band-stop filter
  • Bar primary bushing type current transformer
  • Bar primary type current transformer
  • Bar winding
  • Battery back-up power supply unit
  • Battery casing
  • Battery charger
  • Battery electrode
  • Battery start system
  • Belted cable
  • Bidirectional diode thyristor
  • Bidirectional transistor
  • Bidirectional triode thyristor
  • Bifilar winding
  • Bifurcated contact
  • Bimetallic connector
  • Bimetallic instrument
  • Bipolar junction transistor
  • Bistable relay
  • Blade contact
  • Blasting cable
  • Blended lamp
  • Blow-out coil
  • Board-mounted connector
  • Bonded screen
  • Booster transformer
  • Braid armour
  • Break contact
  • Break down torque multiplier
  • Brush box
  • Brush pressure device
  • Brush yoke
  • Brush-holder fixing device
  • Brush-holder rocker
  • Brush-holder rocker gir
  • Brush-holder rocker yoke
  • Brush-holder supporting structure
  • Brushless wound-rotor induction motor
  • Buchholz relay
  • Buffer amplifier
  • Bulb-type unit
  • Bulkhead luminaire
  • Bunched conductor
  • Bundle assembled aerial cable
  • Bus admittance matrix
  • Bus duct
  • Bus duct enclosure
  • Bus impedance matrix
  • Bus type current transformer
  • Busbar
  • Busbar chamber
  • Bushing type current transformer
  • Butt contact
  • Butting connector
  • Button
  • Buzzer
  • Cable adaptor
  • Cable armour
  • Cable armour cross-section area
  • Cable assembly
  • Cable bedding
  • Cable box
  • Cable bracket
  • Cable braid
  • Cable breeches joint
  • Cable chamber
  • Cable channel
  • Cable clamp
  • Cable cleat
  • Cable conductor
  • Cable conduit bend
  • Cable conduit cross
  • Cable conduit joint
  • Cable conduit reducer
  • Cable conduit section
  • Cable conduit straight
  • Cable conduit tee
  • Cable connector
  • Cable core
  • Cable core marker
  • Cable double branch joint
  • Cable end cap
  • Cable fastener
  • Cable filler
  • Cable gland
  • Cable gland plate
  • Cable insulation layer
  • Cable joint
  • Cable ladder bend
  • Cable ladder bend 30 deg
  • Cable ladder bend 45 deg
  • Cable ladder bend 60 deg
  • Cable ladder bend 90 deg
  • Cable ladder cover
  • Cable ladder cross
  • Cable ladder divider
  • Cable ladder fixed bend
  • Cable ladder fixed joint
  • Cable ladder flexi-bend
  • Cable ladder flexible joint
  • Cable ladder inside riser
  • Cable ladder joint
  • Cable ladder outside riser
  • Cable ladder reducer
  • Cable ladder reducer left
  • Cable ladder reducer right
  • Cable ladder riser
  • Cable ladder section
  • Cable ladder straight
  • Cable ladder tee
  • Cable layer
  • Cable lug
  • Cable marker
  • Cable rack
  • Cable reel
  • Cable reinforcement
  • Cable screen
  • Cable screen clamp
  • Cable sectionalising joint
  • Cable separator
  • Cable sheath
  • Cable shield
  • Cable shroud
  • Cable stop joint
  • Cable straight joint
  • Cable tee joint
  • Cable transition joint
  • Cable tray bend
  • Cable tray bend 45 deg
  • Cable tray bend 90 deg
  • Cable tray cover
  • Cable tray cross
  • Cable tray fixed bend
  • Cable tray fixed joint
  • Cable tray flexi-bend
  • Cable tray flexible joint
  • Cable tray inside riser
  • Cable tray joint
  • Cable tray marker
  • Cable tray outside riser
  • Cable tray reducer
  • Cable tray riser
  • Cable tray section
  • Cable tray straight
  • Cable tray tee
  • Cable trifurcating joint
  • Cable trough
  • Cable trunking bend
  • Cable trunking cover
  • Cable trunking cross
  • Cable trunking joint
  • Cable trunking reducer
  • Cable trunking riser
  • Cable trunking riser inside
  • Cable trunking riser outside
  • Cable trunking section
  • Cable trunking straight
  • Cable trunking system
  • Cable trunking tee
  • Cable tunnel
  • Cable type current transformer
  • Cage induction motor
  • Cage rotor
  • Cage synchronous motor
  • Cage winding
  • Canned machine
  • Cap and pin insulator
  • Capacitance graded bushing
  • Capacitor
  • Capacitor bank
  • Capacitor bushing
  • Capacitor element
  • Capacitor installation
  • Capacitor motor
  • Capacitor stack
  • Capacitor start and run motor
  • Capacitor start motor
  • Capacitor unit
  • Capacitor voltage transformer
  • Carbon filament lamp
  • Carbon-zinc battery
  • Cascade voltage transformer
  • Cathode
  • Centre-break disconnector
  • Change over contact relay
  • Change-over break-before-make contact
  • Change-over contact
  • Change-over make-before-break contact
  • Change-over switch
  • Change-over with neutral position
  • Charge controller
  • Chromium oxide-lithium battery
  • Circuit-breaker
  • Circuit-breaker trip mechanism
  • Circuit-breaker winding gear
  • Circuit-breaker with lock-out preventing closing
  • Circular connector
  • Clock
  • Closed machine
  • Coaxial cable
  • Coaxial jack
  • Cold cathode lamp
  • Cold starterless fluorescent lamp
  • Cold-start lamp
  • Collective screen
  • Collectively shielded cable
  • Combined transformer
  • Common screened electric cable
  • Common winding
  • Commutating winding
  • Commutator
  • Commutator segment
  • Commutator type frequency converter
  • Compacted conductor
  • Compensated repulsion motor
  • Compensating winding
  • Completely immersed bushing
  • Composite insulator
  • Compound-wound current transformer
  • Compressed air power station
  • Computing relay
  • Concentrated winding
  • Concentric conductor
  • Concentric contact
  • Concentric neutral cable
  • Concentric winding
  • Concentrically stranded circular conductor
  • Condensing set
  • Condensing set with reheat
  • Conditioned ac power supply unit
  • Conductivity transmitter
  • Conductor
  • Conductor insulation
  • Conductor screen
  • Conductor strand
  • Conduit adaptor
  • Conical rotor machine
  • Conical rotor motor
  • Connector contact
  • Connector mated set
  • Constant speed motor
  • Contact assembly
  • Contact tip
  • Contactor
  • Contactor coil
  • Contactor relay
  • Control compartment
  • Control contact
  • Control discrepancy switch
  • Control panel
  • Control relay
  • Control station
  • Control switch
  • Control winding
  • Conventional thermal power station
  • Converter data sheet
  • Converter substation
  • Copper oxide-zinc battery
  • Cord
  • Core box
  • Core of an insulator
  • Counter relay
  • Crimp contact
  • Cuprous chloride-magnesium battery
  • Current generator
  • Current injection test set
  • Current limiter
  • Current matching transformer
  • Current regulator
  • Current transformer
  • Current transformer primary winding
  • Current transformer secondary winding
  • Current transmitter
  • Current-limiting circuit-breaker
  • Current-limiting fuse-link
  • Cycloconverter
  • Cylindrical post insulator
  • Cylindrical rotor machine
  • Dc filter
  • Dead tank circuit-breaker
  • Definite purpose motor
  • Definite time-delay over-current release
  • Dehydrating breather
  • Delay line
  • Delay on de-energise relay
  • Delay on energise relay
  • Delta connected winding
  • Dependent-time measuring relay
  • Deri motor
  • Diamond winding
  • Difference galvanometer
  • Diffuser lamp
  • Diode
  • Dip-solder contact
  • Direct ac converter
  • Direct acting instrument
  • Direct cooled winding
  • Direct current machine
  • Direct current power supply unit
  • Direct current relay
  • Direct dc converter
  • Direct over-current release
  • Direct water-cooled machine
  • Direct-on-line starter
  • Discharge lamp
  • Disconnectable busbar
  • Disconnector
  • Disconnector-fuse
  • Discrepancy switch
  • Distributed winding
  • Distribution board
  • Diverter spool
  • Divided support disconnector
  • Divided support earthing switch
  • Dotted line recorder
  • Double busbar substation
  • Double converter
  • Double-break disconnector
  • Downlight
  • Draw lead bushing
  • Drop-out fuse
  • Drum recorder
  • Dry primary battery
  • Dry-type reactor
  • Dry-type transformer
  • Duct
  • Duplex lap winding
  • Duplex wave winding
  • Dynamometer voltmeter
  • Dynamometer wattmeter
  • Earth busbar
  • Earth circuit connector
  • Earth electrode
  • Earth fault relay
  • Earth leakage circuit-breaker
  • Earth leakage detector
  • Earth plate
  • Earth resistance meter
  • Earthed voltage transformer
  • Earthing and lightning system
  • Earthing autotransformer
  • Earthing boss
  • Earthing conductor
  • Earthing connector
  • Earthing lug
  • Earthing strap
  • Earthing stud
  • Earthing switch
  • Earthing system
  • Earthing test set
  • Eddy current coupling
  • Edge-socket connector
  • Electric actuator
  • Electric battery
  • Electric battery bank
  • Electric battery cell
  • Electric cable
  • Electric converter
  • Electric coupling
  • Electric generator
  • Electric heater
  • Electric indicator
  • Electric industrial motor
  • Electric line
  • Electric machine
  • Electric marine motor
  • Electric measuring instrument
  • Electric motor
  • Electric motor cooling fan
  • Electric motor with canopy
  • Electric oscillator
  • Electric plug
  • Electric protection device
  • Electric rotating machine
  • Electric saw
  • Electric screen
  • Electric sensor
  • Electric submersible motor
  • Electric timer
  • Electrical accumulator
  • Electrical barrier
  • Electrical booster
  • Electrical bushing
  • Electrical conductor
  • Electrical connection
  • Electrical connector
  • Electrical contact
  • Electrical contact brush
  • Electrical contact brush holder
  • Electrical distribution unit
  • Electrical dynamometer
  • Electrical filter
  • Electrical heater coil
  • Electrical heating element
  • Electrical insulator
  • Electrical isolator
  • Electrical motor starter
  • Electrical network system
  • Electrical node
  • Electrical power carrier
  • Electrical power distribution system
  • Electrical power generation system
  • Electrical power supply system
  • Electrical reactor
  • Electrical relay
  • Electrical rotor
  • Electrical socket
  • Electrical stator
  • Electrical supply connection
  • Electrical switch
  • Electrical system
  • Electrical test set
  • Electrical wire
  • Electrode
  • Electrodynamic meter
  • Electrolyte
  • Electrolytic capacitor
  • Electromagnet
  • Electromagnet yoke
  • Electromagnetic coil
  • Electromagnetic screen
  • Electro-magnetic trip element
  • Electromechanical relay
  • Electrometer
  • Electronic ac converter
  • Electronic ac power controller
  • Electronic ac power switch
  • Electronic ac voltage converter
  • Electronic converter
  • Electronic dc converter
  • Electronic dc power controller
  • Electronic dc power switch
  • Electronic frequency converter
  • Electronic measuring instrument
  • Electronic phase converter
  • Electronic power inverter
  • Electronic tube
  • Electroscope
  • Electrostatic instrument
  • Emergency power distribution system
  • Encapsulated-winding dry-type reactor
  • Encapsulated-winding dry-type transformer
  • Enclosed fuse-link
  • Enclosed switchgear and controlgear
  • Energy storage capacitor
  • Energy transducer
  • Environment resistant connector
  • Equivalent network system
  • Essential power generator driver
  • Event recorder
  • Excess energy meter
  • Excitation winding
  • Exciter
  • Explosion proof apparatus
  • Expulsion fuse
  • Extended rating type current transformer
  • External gas pressure cable
  • Factory-built switchgear and controlgear
  • Female contact
  • Fibre optic transceiver
  • Field winding
  • Field-effect transistor
  • Filter contact
  • Fire resistant cable
  • Fireproof connector
  • Fixed connector
  • Fixed resistor
  • Fixed trip mechanical switching device
  • Flame retardant cable
  • Flat battery cell
  • Flat multicore cable
  • Flexible busbar
  • Flexible cable
  • Flexible conductor
  • Float mounting connector
  • Floodlight
  • Fluorescent lamp
  • Fluorescent tube fixture
  • Flux meter
  • Foot switch
  • Forced cooled transformer
  • Four-quadrant converter
  • Four-switch mesh substation
  • Four-switch mesh substation with mesh opening disconnectors
  • Fractional horsepower motor
  • Fractional slot winding
  • Frame surface cooled machine
  • Free connector
  • Free coupler connector
  • Frequency converter substation
  • Frequency meter
  • Frequency transmitter
  • Frequency-multiplication diode
  • Frog-leg winding
  • Fuel cell
  • Fully insulated current transformer
  • Fuse
  • Fuse-base
  • Fuse-base contact
  • Fuse-carrier
  • Fuse-carrier contact
  • Fuse-combination unit
  • Fuse-disconnector
  • Fuse-element
  • Fuse-holder
  • Fuse-link
  • Fuse-link contact
  • Fuse-switch
  • Fuse-switch-disconnector
  • Galvanometer
  • Gas evolving switch
  • Gas group certified apparatus
  • Gas insulated line
  • Gas insulated metal-enclosed substation
  • Gas turbine set
  • Gas-blast circuit-breaker
  • Gas-filled lamp
  • Gas-filled tube
  • Gas-insulated metal-enclosed switchgear and controlgear
  • Gastight sealed battery cell
  • General purpose motor
  • Generating set
  • Generator driver
  • Geothermal power station
  • Glass fuse
  • Grading screen
  • Grommet
  • Grommet follower
  • Grommet nut
  • Halogen free type junction box
  • Hand-held electric drill
  • Hand-lamp
  • Hardness detector
  • Hazardous area apparatus
  • Heating cable
  • Hermaphroditic connector
  • Hermetic connector
  • Hermetically sealed battery cell
  • High intensity discharge lamp
  • High pressure mercury lamp
  • High pressure sodium lamp
  • High voltage switchboard data sheet
  • High-pass filter
  • Hollow conductor
  • Hollow insulator
  • Hot cathode lamp
  • Hrc fuse
  • Humidity transmitter
  • Hydraulic starter
  • Hydraulic switch
  • Hydroelectric power station
  • Hydroelectric set
  • Hysteresis coupling
  • Hysteresis motor
  • Ignition cable
  • Illuminated button
  • Impregnated paper insulation
  • Incandescent lamp
  • Independent-time measuring relay
  • Indicating fuse
  • Indicator lamp
  • Indirect ac converter
  • Indirect acting instrument
  • Indirect cooled winding
  • Indirect dc converter
  • Indirect over-current release
  • Individual screen
  • Individually screened cable
  • Indoor bushing
  • Indoor post insulator
  • Indoor substation
  • Indoor switchgear and controlgear
  • Indoor-immersed bushing
  • Induction coupling
  • Induction frequency converter
  • Induction generator
  • Induction machine
  • Induction meter
  • Induction motor
  • Inductor
  • Inductor frequency converter
  • Inductor generator
  • Inductor machine
  • Inductor type synchronous motor
  • Infinite bus
  • Infrared lamp
  • Ingress protected apparatus
  • Inner covering
  • Instantaneous contactor relay
  • Instantaneous release
  • Instrument autotransformer
  • Instrument lead
  • Instrument transformer
  • Insulated cable
  • Insulated-gate field-effect transistor
  • Insulation fault detecting instrument
  • Insulation resistance meter
  • Insulation screen
  • Insulation-enclosed switchgear and controlgear
  • Insulator set
  • Insulator string
  • Integral slot winding
  • Integrally fused circuit-breaker
  • Integrated circuit
  • Integrating ammeter
  • Integrating va meter
  • Integrating volt meter
  • Interlocking device
  • Internal combustion set
  • Internal gas pressure cable
  • Inverse time-delay over-current release
  • Isolation transformer
  • Isolator
  • Jack
  • Jumper board
  • Junction box
  • Junction-gate field-effect transistor
  • Key switch
  • Kiosk substation
  • Korndorfer starter
  • Label plate
  • Laminated core
  • Lamp
  • Lantern lamp
  • Lanyard disconnect connector
  • Lap winding
  • Lapped insulation
  • Latched contactor
  • Lead sheath
  • Lead sheathed cable
  • Lead-acid battery
  • Leclanche battery
  • Light bulb
  • Light fixture bracket
  • Limit switch
  • Line-post insulator
  • Liquid immersed transformer with conservator
  • Lithium carbon monofluoride battery
  • Lithium copper oxide battery
  • Lithium manganese dioxide battery
  • Lithium thionyl chloride battery
  • Live tank circuit-breaker
  • Load bus
  • Locking push-button
  • Long rod insulator
  • Long-arc lamp
  • Low pressure mercury lamp
  • Low pressure sodium lamp
  • Low voltage switchboard data sheet
  • Low-pass filter
  • Luminaire
  • Luminaire for surface mounting
  • Machine
  • Magnet
  • Magnet keeper
  • Magnetic core
  • Magnetic coupling
  • Magnetic overload release
  • Magnetic particle coupling
  • Magnetic screen
  • Magnetic shunt
  • Magneto-hydro-dynamic thermal power station
  • Main contact
  • Main power generator driver
  • Main power system
  • Main switchboard
  • Main terminal box
  • Maintenance-free battery
  • Make contact
  • Male contact
  • Manganese dioxide-magnesium battery
  • Manned substation
  • Manual control switch
  • Manual reset switch
  • Manual starter
  • Mass-impregnated non-draining insulation
  • Mass-impregnated paper insulation
  • Master substation
  • Matching transformer
  • Measuring bridge
  • Measuring instrument with circuit control devices
  • Measuring relay
  • Measuring spark gap
  • Mechanical switching device
  • Mercuric oxide-zinc battery
  • Mercury motor meter
  • Mesh impedance matrix
  • Mesh substation
  • Metal filament lamp
  • Metal halide lamp
  • Metal-clad conductor
  • Metal-coated conductor
  • Metal-enclosed switchgear and controlgear
  • Metal-oxide-semiconductor field-effect transistor
  • Meter with maximum demand indicator
  • Metering compartment
  • Micro jack
  • Milliken conductor
  • Mineral insulation
  • Miniature circuit-breaker
  • Mixed phase layout substation
  • Mixer diode
  • Mobile telephone
  • Molten salt battery
  • Momentary push-button
  • Monobloc battery
  • Monostable relay
  • Motor control centre
  • Motor controller
  • Motor enclosure
  • Motor set
  • Motor start system
  • Motor starter compartment
  • Moulded-case circuit-breaker
  • Moving-coil galvanometer
  • Mud resistant cable
  • Multi constant speed motor
  • Multi varying speed motor
  • Multi-cell switch
  • Multiconductor cable
  • Multicore cable
  • Multi-core type current transformer
  • Multi-element insulator
  • Multi-function meter
  • Multiple-shot reclosing
  • Multiple-stranded conductor
  • Multiplex lap winding
  • Multiplex wave winding
  • Multi-range instrument
  • Multi-rate meter
  • Multi-scale instrument
  • Multi-speed motor
  • Natural cooled transformer
  • Negative-glow lamp
  • Network topology system
  • Neutral electric cable
  • Neutral resistor
  • Neutral resistor rating 100 a
  • Neutral-electrolyte air-zinc battery
  • Nickel-cadmium battery
  • Nickel-iron battery
  • Nickel-zinc battery
  • Non-adjustable thermostatic switch
  • Non-aqueous battery
  • Non-aqueous lithium battery
  • Non-encapsulated-winding dry-type transformer
  • Non-linear variable resistor
  • Non-polarized relay
  • Non-programmable protection relay
  • Non-shorting contact
  • Non-specified-time relay
  • N-step starter
  • Nuclear power station
  • Ocean or sea temperature gradient power station
  • Off load tap changer
  • Off-line ups
  • Ohmmeter
  • Oil circuit-breaker
  • Oil resistant cable
  • Oil-filled cable
  • Oil-filled pipe-type cable
  • Oil-immersed type transformer
  • On load tap changer
  • One-and-a-half breaker arrangement
  • One-quadrant converter
  • On-line ups
  • Open machine
  • Open-type substation
  • Optical fibre
  • Optical fibre cable
  • Oscilloscope
  • Outdoor bushing
  • Outdoor post insulator
  • Outdoor substation
  • Outdoor switchgear and controlgear
  • Outdoor-immersed bushing
  • Outdoor-indoor bushing
  • Over-current release
  • Overhead cable
  • Overload release
  • Oversheath
  • Oxygen-hydrogen fuel cell
  • Pair cable
  • Parallel connected battery bank
  • Parallel-series connected battery bank
  • Passing contact
  • Passive bus
  • Peak voltmeter
  • Pedestal post insulator
  • Pendant luminaire
  • Penetration seal
  • Permanent magnet
  • Permanent magnet machine
  • Permanently manned substation
  • Permeameter
  • Ph transmitter
  • Phase advancer
  • Phase converter
  • Phase meter
  • Phase shifter
  • Photodiode
  • Photoelectric device
  • Phototransistor
  • Pickup coil
  • Pilot switch
  • Pin insulator
  • Pipe-type cable
  • Plain conductor
  • Plant lighting system
  • Plug-in relay
  • Plug-in termination
  • Pneumatic switch
  • Polarized relay
  • Pole amplitude modulating winding
  • Pole change winding motor
  • Pole changing winding
  • Pole of a magnet
  • Pole of a switching device
  • Pole shoe
  • Pole-mounted substation
  • Polyphase commutator motor
  • Polyphase machine
  • Pondage power station
  • Portable instrument
  • Portable luminaire
  • Portable transformer
  • Position switch
  • Post insulator
  • Post insulator unit
  • Potentiometer
  • Power cable
  • Power capacitor
  • Power factor meter
  • Power meter
  • Power station
  • Power supply unit
  • Power transformer
  • Power transformer data sheet
  • Prefocus lamp
  • Preheat lamp
  • Pre-impregnated paper insulation
  • Pre-insulated terminal end
  • Prepayment meter
  • Pressed glass lamp
  • Pressure cable
  • Pressurized machine
  • Primary battery
  • Primary cell
  • Primary relay
  • Printed circuit board
  • Programmable protection relay
  • Projector
  • Protection compartment
  • Protection relay
  • Pull-off connector
  • Pulse generator
  • Pulse transformer
  • Pumped storage power station
  • Push-button
  • Push-pull connector
  • Quad cable
  • Quadrant electrometer
  • Quick action contact
  • Quick-disconnect connector
  • Rack-and-panel connector
  • Radar
  • Radiation resistant cable
  • Ratio-meter
  • Reactive power meter
  • Reactor start split phase motor
  • Recessed luminaire
  • Rectangular connector
  • Rectifier
  • Rectifier instrument
  • Reed contact
  • Reference node
  • Reflector lamp
  • Regulating transformer
  • Relative humidity transmitter
  • Relay
  • Relay coil
  • Relay yoke
  • Release of a mechanical switching device
  • Reluctance motor
  • Remotely controlled substation
  • Renewable fuse-link
  • Repeater
  • Repulsion induction motor
  • Repulsion motor
  • Repulsion start induction motor
  • Reservoir power station
  • Residual current circuit-breaker
  • Residual voltage winding
  • Resilient contact
  • Resistance start split phase motor
  • Resistance transmitter
  • Resistor
  • Reverse blocking diode thyristor
  • Reverse blocking triode thyristor
  • Reverse conducting diode thyristor
  • Reverse conducting triode thyristor
  • Reverse current release
  • Reversible converter
  • Reversible hydroelectric set
  • Reversing switch
  • Rheostatic rotor starter
  • Rheostatic starter
  • Right-angle connector
  • Rigid busbar
  • Rigid insulator
  • Ring substation
  • Rise and fall pendant luminaire
  • Rolling contact
  • Rotary control switch
  • Rotary converter
  • Rotating frequency converter
  • Rotating phase converter
  • Rotor contact
  • Rotor winding
  • Round battery cell
  • Run-of-river power station
  • Sacrificial anode
  • Salient pole machine
  • Sandwich winding
  • Satellite substation
  • Saturable reactor
  • Schrage motor
  • Scoop-proof connector
  • Screen connector
  • Sealed beam lamp
  • Sealed connector
  • Sealed machine
  • Sealed primary battery
  • Sealed reactor
  • Sealed transformer
  • Sealing end
  • Searchlight
  • Secondary battery
  • Secondary cell
  • Secondary relay
  • Sector-shaped conductor
  • Self-contained pressure cable
  • Self-cooled machine
  • Self-healing capacitor
  • Self-regulating trace heating cable
  • Semiconductor
  • Semiconductor converter
  • Semiconductor device
  • Semiconductor diode
  • Semiconductor rectifier diode
  • Semiconductor switching device
  • Sensitive switch
  • Separate winding transformer
  • Separated phase layout substation
  • Separately lead-sheathed cable
  • Separately-cooled machine
  • Sequence of events recorder
  • Series connected battery bank
  • Series winding
  • Series-parallel connected battery bank
  • Serving
  • Sf6 circuit-breaker
  • Sf6 switch
  • Shackle insulator
  • Shaded pole motor
  • Shadow column instrument
  • Shaped conductor
  • Shed of an insulator
  • Shield
  • Shielded cable
  • Shielded connector
  • Shielding conductor
  • Short-arc lamp
  • Shorting contact
  • Shrinkable termination
  • Shroud
  • Shunt
  • Shunt coil
  • Shunt release
  • Shunt winding
  • Shutter
  • Signal cable
  • Signal generator
  • Signal lamp
  • Silver chloride-magnesium battery
  • Silver oxide cadmium battery
  • Silver-zinc battery
  • Simplex lap winding
  • Simplex wave winding
  • Single busbar substation
  • Single converter
  • Single function instrument
  • Single layer winding
  • Single phase commutator motor
  • Single phase transformer
  • Single range instrument
  • Single_phase machine
  • Single-conductor cable
  • Single-core type current transformer
  • Single-line diagram
  • Single-phase concentric neutral cable
  • Single-pole reclosing equipment
  • Skid wire
  • Slack bus
  • Sliding contact
  • Slip ring
  • Slip-on termination
  • Slip-ring induction motor
  • Slow action contact
  • Small power distribution board
  • Small power distribution compartment
  • Small-power motor
  • Smart transmitter
  • Snap-on contact
  • Snatch-disconnect connector
  • Soft-start starter
  • Solar power station
  • Solder contact
  • Solenoid
  • Solid conductor
  • Solid electrolyte battery
  • Solid pole shoe machine
  • Solid-core insulator
  • Sound level meter
  • Spark-gap
  • Sparking plug
  • Special purpose motor
  • Specified-time relay
  • Spiral binder tape
  • Split concentric cable
  • Split core type current transformer
  • Split phase motor
  • Split throw winding
  • Splitter box
  • Spotlight
  • Spout
  • Stabilised dc power supply unit
  • Stabilized insulator
  • Staggered-contact connector
  • Standard battery cell
  • Star connected winding
  • Star-delta starter
  • Start relay
  • Start system
  • Starterless fluorescent lamp
  • Starting motor
  • Starting winding
  • Static relay
  • Static relay with output contact
  • Static relay without output contact
  • Stator winding
  • Stator winding with thermal protection
  • Stay-put push-button
  • Steel wire armour
  • Step-down substation
  • Stepper motor
  • Step-up substation
  • Strain insulator
  • Stranded conductor
  • Striker fuse
  • String galvanometer
  • String insulator unit
  • Strip chart recorder
  • Stud terminal
  • Stylus recorder
  • Sub switchboard
  • Submersible connector
  • Submersible power cable
  • Subsea cable
  • Substation
  • Substation bay
  • Subsynchronous reluctance motor
  • Summation current transformer
  • Summation instrument
  • Support type current transformer
  • Surface temperature classified apparatus
  • Surge protection
  • Switch
  • Switch compartment
  • Switch contact
  • Switchable busbar
  • Switchboard
  • Switch-disconnector
  • Switch-disconnector-fuse
  • Switch-fuse
  • Switchgear and controlgear
  • Switchgear and controlgear compartment
  • Switching device
  • Switching diode
  • Switching substation
  • Switch-start fluorescent lamp
  • Symmetrical fractional slot winding
  • Synchronous coupling
  • Synchronous generator
  • Synchronous induction motor
  • Synchronous machine
  • Synchronous motor
  • System diagram
  • System operational diagram
  • Tacho-generator
  • Tap changer
  • Tapped substation
  • Tapped transformer
  • Telephone
  • Telephone plug
  • Temperature compensated thermal time delay switch
  • Temperature detector
  • Temperature transmitter data sheet
  • Terminal
  • Terminal block
  • Terminal box
  • Terminal chamber
  • Terminal end
  • Terminal rail
  • Terminal row
  • Termination
  • Test probe
  • Thermal detector
  • Thermal electrical relay
  • Thermal generating set
  • Thermal instrument
  • Thermal overload release
  • Thermal power station
  • Thermal power unit
  • Thermal protector
  • Thermal rated electrical artefact
  • Thermal time delay switch
  • Thermal trip element
  • Thermistor
  • Thermocouple compensation cable
  • Thermocouple extension cable
  • Thermocouple instrument
  • Thermostatic switch
  • Three phase transformer
  • Three winding transformer
  • Three-core cable
  • Three-phase concentric neutral cable
  • Three-phase earthing transformer
  • Three-phase neutral reactor
  • Three-phase system diagram
  • Three-pole reclosing equipment
  • Three-pole reclosing equipment with synchrocheck
  • Three-switch mesh substation with bypass
  • Thyristor
  • Thyristor fuse
  • Thyristor variable speed drive converter
  • Tidal power station
  • Time-delay contactor relay
  • Timer relay
  • Tinned conductor
  • Tinsel conductor
  • Toggle switch
  • Totally enclosed fan cooled machine
  • Trace heating cable
  • Traction substation
  • Transductor
  • Transfer busbar
  • Transformer
  • Transformer primary winding
  • Transformer primary winding cable
  • Transformer secondary winding
  • Transformer secondary winding cable
  • Transformer substation
  • Transformer tapped at primary side
  • Transformer tapped at secondary side
  • Transformer winding
  • Transformer yoke
  • Transistor
  • Trench marker
  • Triaxial cable
  • Trifurcating box
  • Trip amplifier
  • Trip element
  • Trip-free mechanical switching device
  • Triple busbar substation
  • Triple cable
  • Tungsten halogen lamp
  • Tungsten lamp
  • Tuning fork contact
  • Tunnel diode
  • Turbo-generator set
  • Turn
  • Twisted loom
  • Twist-on connector
  • Two layer winding
  • Two winding transformer
  • Two-breaker arrangement
  • Two-quadrant converter
  • Two-value capacitor motor
  • Typological diagram of a network
  • Uhf transceiver
  • Ultraviolet lamp
  • Umbilical connector
  • Underfloor heating cable
  • Underground substation
  • Undervoltage coil
  • Under-voltage release
  • Unearthed voltage transformer
  • Unipolar transistor
  • Unitunnel diode
  • Universal motor
  • Unmanned substation
  • Unspillable battery cell
  • Ups data sheet
  • Ups unit
  • Vacuum circuit-breaker
  • Vacuum contactor
  • Vacuum lamp
  • Vacuum switch
  • Vacuum tube
  • Valve regulated lead acid battery cell
  • Var-hour meter
  • Variable resistor
  • Variable speed drive converter
  • Variable speed drive unit
  • Variable thermal time delay switch
  • Variable-capacitance diode
  • Varistor
  • Vented battery cell
  • Vhf transceiver
  • Vibrating reed instrument
  • Vibration galvanometer
  • Vibration transmitter
  • Viscometer
  • Voltage controlled bus
  • Voltage dependent resistor
  • Voltage divider
  • Voltage map
  • Voltage matching transformer
  • Voltage rated cable
  • Voltage regulator
  • Voltage relay
  • Voltage transformer
  • Voltage transformer primary winding
  • Voltage transformer secondary winding
  • Voltage-reference diode
  • Voltage-regulator diode
  • Volt-ampere meter
  • Volt-ampere-hour meter
  • Voltmeter
  • Warm starterless fluorescent lamp
  • Watt-hour meter
  • Wattmeter
  • Wave winding
  • Weight transmitter
  • Welding set
  • Welding transformer
  • Weston standard cell
  • Wet primary battery
  • Wind power station
  • Winding
  • Winding gear
  • Winding temperature element
  • Winding thermal class
  • Wound core
  • Wound primary type current transformer
  • Wound-rotor induction motor
  • Wrap contact
  • Wrap post
  • Xlpe cable
  • Zener diode
  • Zero insertion force component
  • Zigzag connected winding
  • Zinc chloride battery
  • Zinc silver oxide battery
  •  

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    Glossary of electrical terms