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Electrical Symbols — Inductors

An inductor, also called a coil or reactor, is a passive two-terminal electrical component which resists changes in electric current passing through it. It consists of a conductor such as a wire, usually wound into a coil. Energy is stored in a magnetic field in the coil as long as current flows. When the current flowing through an inductor changes, the time-varying magnetic field induces a voltage in the conductor, according to Faraday’s law of electromagnetic induction.

26 libraries of the Electrical Engineering Solution of ConceptDraw DIAGRAM make your electrical diagramming simple, efficient, and effective. You can simply and quickly drop the ready-to-use objects from libraries into your document to create the electrical diagram.

Electrical Symbols — Switches and Relays

In electrical engineering, a switch is an electrical component that can break an electrical circuit, interrupting the current or diverting it from one conductor to another. The mechanism of a switch may be operated directly by a human operator to control a circuit (for example, a light switch or a keyboard button), may be operated by a moving object such as a door-operated switch, or may be operated by some sensing element for pressure, temperature or flow. A relay is a switch that is operated by electricity. Switches are made to handle a wide range of voltages and currents; very large switches may be used to isolate high-voltage circuits in electrical substations.

26 libraries of the Electrical Engineering Solution of ConceptDraw DIAGRAM make your electrical diagramming simple, efficient, and effective. You can simply and quickly drop the ready-to-use objects from libraries into your document to create the electrical diagram.
The vector stencils library "Transformers and windings" contains 29 element symbols of transformers, windings, couplers, metering devices, transductors, magnetic cores, chokes, and a variometer.
Use it to design the electromechanical device schematics and electronic circuit diagrams.
"A transformer is an electrical device that transfers energy between two circuits through electromagnetic induction. Transformers may be used in step-up or step-down voltage conversion, which 'transforms' an AC voltage from one voltage level on the input of the device to another level at the output terminals. This special function of transformers can provide control of specified requirements of current level as an alternating current source, or it may be used for impedance matching between mismatched electrical circuits to effect maximum power transfer between the circuits.
A transformer most commonly consists of two windings of wire that are wound around a common core to induce tight electromagnetic coupling between the windings. The core material is often a laminated iron core. The coil that receives the electrical input energy is referred to as the primary winding, while the output coil is called the secondary winding.
An alternating electric current flowing through the primary winding (coil) of a transformer generates an electromagnetic field in its surroundings and a varying magnetic flux in the core of the transformer. By electromagnetic induction this magnetic flux generates a varying electromotive force in the secondary winding, resulting in a voltage across the output terminals. If a load impedance is connected across the secondary winding, a current flows through the secondary winding drawing power from the primary winding and its power source." [Transformer. Wikipedia]
"An electromagnetic coil (or simply a "coil") is formed when a conductor is wound around a core or form to create an inductor or electromagnet. When electricity is passed through a coil, it generates a magnetic field. One loop of wire is usually referred to as a turn or a winding, and a coil consists of one or more turns. For use in an electronic circuit, electrical connection terminals called taps are often connected to a coil. Coils are often coated with varnish or wrapped with insulating tape to provide additional insulation and secure them in place. A completed coil assembly with one or more set of coils and taps is often called the windings.
Windings are used in transformers, electric motors, inductors, solenoids, loudspeakers, and many other applications." [Electromagnetic coil. Wikipedia]
The shapes example "Design elements - Transformers and windings" was drawn using the ConceptDraw PRO diagramming and vector drawing software extended with the Electrical Engineering solution from the Engineering area of ConceptDraw Solution Park.
Transformer and winding symbols
Transformer and winding symbols, variometer, triplex, induction voltage regulator, transformer, magnetic-core, mutual inductor, transformer, magnetic-core, 2 windings, adjustable, transformer, magnetic-core, 1 winding, adjustable, transformer, magnetic-core, transformer, air-core, mutual inductor, transformer, air-core, 2 windings, adjustable, transformer, air-core, 1 winding, adjustable, transformer, air-core, transformer, transductor, saturating transformer, potential transformer, winding, potential transformer, outdoor metering device, magnetic core, linear coupler, induction voltage regulator, current transformer, bushing-type, current transformer, coaxial choke, magnetic core, choke, reactor, adjustable transformer, 1 winding, adjustable transformer,  mutual inductor, 1-phase, induction voltage regulator,
The vector stencils library "Industrial equipment" contains 81 symbols of pumps, compressors, fans, turbines, and power generators.
Use these shapes to design pumping systems, air and fluid compression systems, and industrial process diagrams in the ConceptDraw PRO software extended with the Chemical and Process Engineering solution from the Chemical and Process Engineering area of ConceptDraw Solution Park.
www.conceptdraw.com/ solution-park/ engineering-chemical-process
Breaker
Breaker, gyratory, breaker,
Crusher
Crusher, crusher,
Crusher coarse
Crusher coarse, crusher coarse,
Crusher medium
Crusher medium, crusher medium,
Crusher fine
Crusher fine, crusher fine,
Roll crusher
Roll crusher, roll crusher,
Hammer crusher
Hammer crusher, hammer crusher,
Crusher single load
Crusher single load, crusher single load,
Crusher hammer
Crusher hammer, crusher hammer,
Crusher impact
Crusher impact, crusher impact,
Crusher jaw
Crusher jaw, crusher jaw,
Crusher high-speed roller
Crusher high-speed roller, crusher high-speed roller,
Crusher cone
Crusher cone, crusher cone,
Crusher cone 2
Crusher cone 2, crusher cone,
Crusher general
Crusher general, crusher,
Crusher hammer 2
Crusher hammer 2, crusher hammer,
Crusher impact 2
Crusher impact 2, crusher impact,
Crusher jaw 2
Crusher jaw 2, crusher jaw,
Crusher roller
Crusher roller, crusher roller,
Ball mill
Ball mill, ball mill,
Mill general
Mill general, mill general,
Mill hammer
Mill hammer, mill hammer,
Mill impact
Mill impact, mill impact,
Mill jet
Mill jet, mill jet,
Mill roller
Mill roller, mill roller,
Mill vibrator
Mill vibrator, mill vibrator,
Mixer
Mixer, mixer,
Mixer general
Mixer general, mixer,
Mixer rotary
Mixer rotary, mixer rotary,
Mixer can
Mixer can, mixer can,
Mixer fluidized
Mixer fluidized, mixer fluidized,
Kneader
Kneader, kneader,
Kneader general
Kneader general, kneader,
Kneader wheel
Kneader wheel, kneader wheel,
Kneader ball
Kneader ball, kneader ball,
Kneader rolling
Kneader rolling, kneader rolling,
Kneader blade
Kneader blade, kneader blade,
Blender
Blender, ribbon, blender,
Double blender
Double blender, double cone blender, double blender, blender,
Fluid separator general
Fluid separator general, fluid separator, separator,
Fluid separator wet
Fluid separator wet, fluid separator, separator,
Fluid separator dry
Fluid separator dry, fluid separator, separator,
Fluid separator gravitation
Fluid separator gravitation, fluid separator, separator,
Fluid separator inertial
Fluid separator inertial, fluid separator, separator,
Fluid separator centrifugal
Fluid separator centrifugal, fluid separator, separator,
Filter 1
Filter 1, filter,
Filter 2
Filter 2, batch filter, filter,
Rotary filter
Rotary filter, rotary filter, filter,
Screen
Screen, screen,
Electromagnet
Electromagnet, electromagnet,
Cyclone 1
Cyclone 1, cyclone, hydroclone,
Cyclone 2
Cyclone 2, cyclone,
Centrifuge general
Centrifuge general, centrifuge,
Centrifuge dehydrator
Centrifuge dehydrator, centrifuge, dehydrator,
Centrifuge submersion
Centrifuge submersion, centrifuge submersion,
Centrifuge 2
Centrifuge 2, centrifuge,
Briquetting machine standard
Briquetting machine standard, briquetting machine, briquetting,
Briquetting machine
Briquetting machine, briquetting machine, briquetting,
Prill tower
Prill tower, prill tower,
Dryer
Dryer, batch tray dryer, dryer,
Conveyor 2 circles 2 lines
Conveyor 2 circles 2 lines, conveyor,
Conveyor 2 circles 1 line
Conveyor 2 circles 1 line, conveyor,
Conveyor 1 circle 2 lines
Conveyor 1 circle 2 lines, conveyor,
Conveyor 1 circle 1 line
Conveyor 1 circle 1 line, conveyor,
Conveyor wheel
Conveyor wheel, conveyor wheel,
Boom loader
Boom loader, boom loader,
Scraper conveyor
Scraper conveyor, scraper conveyor, conveyor,
Screw conveyor
Screw conveyor, screw conveyor, conveyor,
Screw conveyor 2
Screw conveyor 2, screw conveyor, conveyor,
Elevator 1
Elevator 1, elevator,
Elevator 2
Elevator 2, elevator,
Skip hoist
Skip hoist, skip hoist,
Overhead conveyor
Overhead conveyor, overhead conveyor, conveyor,
Overhead conveyor with hooks
Overhead conveyor with hooks, overhead conveyor, conveyor,
Overhead conveyor with buckets
Overhead conveyor with buckets, overhead conveyor, conveyor,
Hoist
Hoist, hoist,
Hoist with hook
Hoist with hook, hoist with hook,
Hoist with grab
Hoist with grab, hoist with grab,
Electric motor
Electric motor, electric motor,
Tank truck
Tank truck, tank truck,
Tank car
Tank car, tank car,
The vector stencils library "Switches and relays" contains 58 symbols of electrical contacts, switches, relays, circuit breakers, selectors, connectors, disconnect devices, switching circuits, current regulators, and thermostats for electrical devices.
"In electrical engineering, a switch is an electrical component that can break an electrical circuit, interrupting the current or diverting it from one conductor to another.
The most familiar form of switch is a manually operated electromechanical device with one or more sets of electrical contacts, which are connected to external circuits. Each set of contacts can be in one of two states: either "closed" meaning the contacts are touching and electricity can flow between them, or "open", meaning the contacts are separated and the switch is nonconducting. The mechanism actuating the transition between these two states (open or closed) can be either a "toggle" (flip switch for continuous "on" or "off") or "momentary" (push-for "on" or push-for "off") type.
A switch may be directly manipulated by a human as a control signal to a system, such as a computer keyboard button, or to control power flow in a circuit, such as a light switch. Automatically operated switches can be used to control the motions of machines, for example, to indicate that a garage door has reached its full open position or that a machine tool is in a position to accept another workpiece. Switches may be operated by process variables such as pressure, temperature, flow, current, voltage, and force, acting as sensors in a process and used to automatically control a system. ... A switch that is operated by another electrical circuit is called a relay. Large switches may be remotely operated by a motor drive mechanism. Some switches are used to isolate electric power from a system, providing a visible point of isolation that can be padlocked if necessary to prevent accidental operation of a machine during maintenance, or to prevent electric shock." [Switch. Wikipedia]
"A relay is an electrically operated switch. Many relays use an electromagnet to mechanically operate a switch, but other operating principles are also used, such as solid-state relays. Relays are used where it is necessary to control a circuit by a low-power signal (with complete electrical isolation between control and controlled circuits), or where several circuits must be controlled by one signal. The first relays were used in long distance telegraph circuits as amplifiers: they repeated the signal coming in from one circuit and re-transmitted it on another circuit. Relays were used extensively in telephone exchanges and early computers to perform logical operations.
A type of relay that can handle the high power required to directly control an electric motor or other loads is called a contactor. Solid-state relays control power circuits with no moving parts, instead using a semiconductor device to perform switching. Relays with calibrated operating characteristics and sometimes multiple operating coils are used to protect electrical circuits from overload or faults; in modern electric power systems these functions are performed by digital instruments still called "protective relays"." [Relay. Wikipedia]
The shapes example "Design elements - Switches and relays" was drawn using the ConceptDraw PRO diagramming and vector drawing software extended with the Electrical Engineering solution from the Engineering area of ConceptDraw Solution Park.
Switch and relay symbols
Switch and relay symbols, two way contact, time delay make, open switch, time-delay closing, TDC, time delay make, normally open, time delay break, normally closed, time delay break, closed switch, time-delay opening, TDO, thermostat, temperature switch, temperature sensitive switch, temperature actuated switch, switch disconnector, isolating-switch, stay put, contact without spring return, spring return, make, spring return, break, spring return, shorting selector, make-before-break, shorting, bridging,  contact transfer, selector switch, break-before-make, nonshorting, nonbridging, contact transfer, safety interlock, circuit opening, relay contacts, relay coil, relay, pushbutton, make, circuit closing, mushroom head, push-pull head, pushbutton, break, circuit opening, mushroom head, push-pull head, pushbutton, 2-circuit, circuit opening, break, proximity limit switch, directly actuated, spring returned, normally closed, pressure actuated switch, pilot light, passing make-contact, mercury switch, manual switch, manually operated switch, make contact, liquid level actuated switch, limit switch, directly actuated, spring returned, normally open, limit switch, directly actuated, spring returned, normally closed, limit switch, isolator, inertia switch, gas flow actuated switch, fuse, flow actuated, circuit breaker, change-over contact, break contact, SPST, single-pole, single-throw, switch, SPDT, single-pole, double-throw, switch, DPST, double-pole, single-throw, switch, DPDT, double-pole, double-throw, switch, 4 position, switch, 3 position, three-position, switch, 2 position, switch,
The vector stencils library "Lamps, acoustics, readouts" contains 35 element symbols of lamps, acoustic components, electrical measuring instruments for drawing electrical schematics and electronic circuit diagrams.
"Electrical measurements are the methods, devices and calculations used to measure electrical quantities. Measurement of electrical quantities may be done to measure electrical parameters of a system. Using transducers, physical properties such as temperature, pressure, flow, force, and many others can be converted into electrical signals, which can then be conveniently measured and recorded." [Electrical measurements. Wikipedia]
"A lamp is a replaceable component such as an incandescent light bulb, which is designed to produce light from electricity." [Lamp (electrical component). Wikipedia]
"An electric bell is a mechanical bell that... functions by means of an electromagnet. When an electric current is applied, it produces a repetitive buzzing or clanging sound." [Electric bell. Wikipedia]
"A buzzer or beeper is an audio signalling device, which may be mechanical, electromechanical, or piezoelectric." [Buzzer. Wikipedia]
"Electronic sirens incorporate circuits such as oscillators, modulators, and amplifiers to synthesize a selected siren tone (wail, yelp, pierce/ priority/ phaser, hi-lo, scan, airhorn, manual, and a few more) which is played through external speakers." [Siren (noisemaker). Wikipedia]
"A microphone (colloquially called a mic or mike...) is an acoustic-to-electric transducer or sensor that converts sound in air into an electrical signal. ...
Most microphones today use electromagnetic induction (dynamic microphone), capacitance change (condenser microphone) or piezoelectric generation to produce an electrical signal from air pressure variations." [Microphone. Wikipedia]
The symbols example "Design elements - Lamps, acoustics, readouts" was drawn using the ConceptDraw PRO diagramming and vector drawing software extended with the Electrical Engineering solution from the Engineering area of ConceptDraw Solution Park.
Lamps, acoustics, electrical measuring instruments
Lamps, acoustics, electrical measuring instruments, speaker, microphone, speaker, microphone, push-pull, microphone, capacitor, microphone, lamp, signal lamp, lamp, non-indicating lamp, lamp, indicating lamp, lamp, indicator, meter, wavemeter, indicator, meter, voltmeter, indicator, meter, thermometer, indicator, meter, synchroscope, indicator, meter, oscilloscope, indicator, meter, galvanometer, indicator, meter, frequency meter, indicator, meter, ammeter, fluorescent lamp, buzzer, bell, siren, bell,
The vector stencils library "Industrial equipment" contains 81 symbols of pumps, compressors, fans, turbines, and power generators.
Use these shapes to design pumping systems, air and fluid compression systems, and industrial process diagrams in the ConceptDraw PRO software extended with the Chemical and Process Engineering solution from the Chemical and Process Engineering area of ConceptDraw Solution Park.
www.conceptdraw.com/ solution-park/ engineering-chemical-process
Breaker
Breaker, gyratory, breaker,
Crusher
Crusher, crusher,
Crusher coarse
Crusher coarse, crusher coarse,
Crusher medium
Crusher medium, crusher medium,
Crusher fine
Crusher fine, crusher fine,
Roll crusher
Roll crusher, roll crusher,
Hammer crusher
Hammer crusher, hammer crusher,
Crusher single load
Crusher single load, crusher single load,
Crusher hammer
Crusher hammer, crusher hammer,
Crusher impact
Crusher impact, crusher impact,
Crusher jaw
Crusher jaw, crusher jaw,
Crusher high-speed roller
Crusher high-speed roller, crusher high-speed roller,
Crusher cone
Crusher cone, crusher cone,
Crusher cone 2
Crusher cone 2, crusher cone,
Crusher general
Crusher general, crusher,
Crusher hammer 2
Crusher hammer 2, crusher hammer,
Crusher impact 2
Crusher impact 2, crusher impact,
Crusher jaw 2
Crusher jaw 2, crusher jaw,
Crusher roller
Crusher roller, crusher roller,
Ball mill
Ball mill, ball mill,
Mill general
Mill general, mill general,
Mill hammer
Mill hammer, mill hammer,
Mill impact
Mill impact, mill impact,
Mill jet
Mill jet, mill jet,
Mill roller
Mill roller, mill roller,
Mill vibrator
Mill vibrator, mill vibrator,
Mixer
Mixer, mixer,
Mixer general
Mixer general, mixer,
Mixer rotary
Mixer rotary, mixer rotary,
Mixer can
Mixer can, mixer can,
Mixer fluidized
Mixer fluidized, mixer fluidized,
Kneader
Kneader, kneader,
Kneader general
Kneader general, kneader,
Kneader wheel
Kneader wheel, kneader wheel,
Kneader ball
Kneader ball, kneader ball,
Kneader rolling
Kneader rolling, kneader rolling,
Kneader blade
Kneader blade, kneader blade,
Blender
Blender, ribbon, blender,
Double blender
Double blender, double cone blender, double blender, blender,
Fluid separator general
Fluid separator general, fluid separator, separator,
Fluid separator wet
Fluid separator wet, fluid separator, separator,
Fluid separator dry
Fluid separator dry, fluid separator, separator,
Fluid separator gravitation
Fluid separator gravitation, fluid separator, separator,
Fluid separator inertial
Fluid separator inertial, fluid separator, separator,
Fluid separator centrifugal
Fluid separator centrifugal, fluid separator, separator,
Filter 1
Filter 1, filter,
Filter 2
Filter 2, batch filter, filter,
Rotary filter
Rotary filter, rotary filter, filter,
Screen
Screen, screen,
Electromagnet
Electromagnet, electromagnet,
Cyclone 1
Cyclone 1, cyclone, hydroclone,
Cyclone 2
Cyclone 2, cyclone,
Centrifuge general
Centrifuge general, centrifuge,
Centrifuge dehydrator
Centrifuge dehydrator, centrifuge, dehydrator,
Centrifuge submersion
Centrifuge submersion, centrifuge submersion,
Centrifuge 2
Centrifuge 2, centrifuge,
Briquetting machine standard
Briquetting machine standard, briquetting machine, briquetting,
Briquetting machine
Briquetting machine, briquetting machine, briquetting,
Prill tower
Prill tower, prill tower,
Dryer
Dryer, batch tray dryer, dryer,
Conveyor 2 circles 2 lines
Conveyor 2 circles 2 lines, conveyor,
Conveyor 2 circles 1 line
Conveyor 2 circles 1 line, conveyor,
Conveyor 1 circle 2 lines
Conveyor 1 circle 2 lines, conveyor,
Conveyor 1 circle 1 line
Conveyor 1 circle 1 line, conveyor,
Conveyor wheel
Conveyor wheel, conveyor wheel,
Boom loader
Boom loader, boom loader,
Scraper conveyor
Scraper conveyor, scraper conveyor, conveyor,
Screw conveyor
Screw conveyor, screw conveyor, conveyor,
Screw conveyor 2
Screw conveyor 2, screw conveyor, conveyor,
Elevator 1
Elevator 1, elevator,
Elevator 2
Elevator 2, elevator,
Skip hoist
Skip hoist, skip hoist,
Overhead conveyor
Overhead conveyor, overhead conveyor, conveyor,
Overhead conveyor with hooks
Overhead conveyor with hooks, overhead conveyor, conveyor,
Overhead conveyor with buckets
Overhead conveyor with buckets, overhead conveyor, conveyor,
Hoist
Hoist, hoist,
Hoist with hook
Hoist with hook, hoist with hook,
Hoist with grab
Hoist with grab, hoist with grab,
Electric motor
Electric motor, electric motor,
Tank truck
Tank truck, tank truck,
Tank car
Tank car, tank car,