Products Solutions Samples Buy
✕
This site uses cookies. By continuing to browse the ConceptDraw site you are agreeing to our Use of Site Cookies.
Try ConceptDraw Free

Electrical Symbols, Electrical Diagram Symbols

Electrical Diagram Symbols
When drawing Electrical Schematics, Electrical Circuit Diagrams, Power Systems Diagrams, Circuit and Wiring Diagrams, Digital and Analog Logic Schemes, you will obligatory need the electrical symbols and pictograms to represent various electrical and electronic devices, such as resistors, wires, transistors, inductors, batteries, switches, lamps, readouts, amplifiers, repeaters, relays, transmission paths, semiconductors, generators, and many more. Today these symbols are internationally standardized, so the diagrams designed using them are recognizable and comprehensible by specialists from different countries. Electrical Engineering Solution included to ConceptDraw Solution Park provides 26 libraries with 926 commonly used electrical schematic and electrical engineering symbols making the reality the easy drawing of Electrical diagrams, schematics and blueprints. Now you need only a few minutes to create great-looking Electrical diagram, simply choose required electrical design elements from the libraries, drag them on the needed places at the document and connect in a suitable way.

Electrical Symbols — Power Sources

Electrical Symbols — Power Sources *
A voltage source is a two terminal device which can maintain a fixed voltage. An ideal voltage source can maintain the fixed voltage independent of the load resistance or the output current. However, a real-world voltage source cannot supply unlimited current. A voltage source is the dual of a current source. Real-world sources of electrical energy, such as batteries, generators, and power systems, can be modeled for analysis purposes as a combination of an ideal voltage source and additional combinations of impedance elements. 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 Drawing Software and Electrical Symbols

Electrical Drawing Software and Electrical Symbols *
Any electrical device could not be created without electrical diagram, wiring also cannot be laid without pre-designed and approved scheme or plan. Electrical drawing is a type of technical drawing that depicts scheme of some electrical device and includes the information about power, lighting, etc. Electrical plan designed for architectural or engineering project visually displays location of electrical devices and connections. ConceptDraw DIAGRAM is ideal electrical software for construction professional-looking Electrical Circuits, Electrical Schematics, Electrical Layouts, Electrical Wiring, Automotive Wiring, Cabling Layout Diagrams, Circuits and Logic Schematics, Logic Gate Diagrams, Digital Circuits, Parallel Circuits, Blue Prints with help of 926 standard electrical symbols offered by 26 libraries of Electrical Engineering solution from the Engineering area for ConceptDraw DIAGRAM. It makes drawing Electrical diagrams very easy even for beginners, and also extends your work with various export methods.

Electrical Symbols — Transmission Paths

Electrical Symbols — Transmission Paths *
Variable delay elements are often used to manipulate the rising or falling edges of the clock or any other signal in integrated circuits. Delay elements are also used in delay locked loops and in defining a time reference for the movement of data within those systems. 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 — Stations

Electrical Symbols — Stations *
A power station is an industrial facility for the generation of electric power. Most power stations contain one or more generators, a rotating machine that converts mechanical power into electrical power. The relative motion between a magnetic field and a conductor creates an electrical current. The energy source harnessed to turn the generator varies widely. Most power stations in the world burn fossil fuels such as coal, oil, and natural gas to generate electricity. Others use nuclear power, but there is an increasing use of cleaner renewable sources such as solar, wind, wave and hydroelectric. 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 — Resistors

Electrical Symbols — Resistors *
A resistor is a passive two-terminal electrical component that implements electrical resistance as a circuit element. Resistors may be used to reduce current flow, and, at the same time, may act to lower voltage levels within circuits. In electronic circuits, resistors are used to limit current flow, to adjust signal levels, bias active elements, and terminate transmission lines among other uses. Fixed resistors have resistances that only change slightly with temperature, time or operating voltage. Variable resistors can be used to adjust circuit elements (such as a volume control or a lamp dimmer), or as sensing devices for heat, light, humidity, force, or chemical activity. 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, Electrical Schematic Symbols

Electrical Symbols, Electrical Schematic Symbols *
Electrical Schematics and Electrical Circuit Diagrams are included to the number of obligatory diagrams and documents while developing the package of construction documentation for the building project. It is comfortable to use the special drawing software for designing diagrams of this type. ConceptDraw DIAGRAM diagramming and vector drawing software extended with Electrical Engineering solution from Industrial Engineering Area of ConceptDraw Solution Park provides the powerful drawing tools, a lot of specific samples and templates, and numerous libraries with incredibly large quantity of predesigned electrical schematic symbols, including analog and digital logic electrical symbols, electrical circuits symbols, inductors, power sources, lamps, resistors, transistors, delay elements, switches and relays, terminals and connectors, and many other useful electrical symbols, which will be helpful for easy designing professional looking Electrical Schematics, Electrical Engineering Diagrams, Circuit and Wiring Diagrams, Power Systems Diagrams, Digital and Analog Logic Schematics.

Electrical Symbols — VHF UHF SHF

Electrical Symbols — VHF UHF SHF *
Ultra high frequency (UHF) is the ITU designation for radio frequencies in the range between 300 MHz and 3 GHz, also known as the decimetre band as the wavelengths range from one meter to one decimetre. Radio waves with frequencies above the UHF band fall into the SHF (super-high frequency) or microwave frequency range. Lower frequency signals fall into the VHF (very high frequency) or lower bands. UHF radio waves propagate mainly by line of sight; they are blocked by hills and large buildings although the transmission through building walls is strong enough for indoor reception. They are used for television broadcasting, cell phones, satellite communication including GPS, personal radio services including Wi-Fi and Bluetooth, walkie-talkies, cordless phones, and numerous other applications. 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 — Maintenance

Electrical Symbols — Maintenance *
Electrical maintenance - troubleshooting electrical circuit. The diagrams are a big help when workers try to find out why a circuit does not work correctly. 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 "Transmission paths" contains 43 symbols of power transmission paths, electronic circuits, bus connectors and elbows, terminals, junctions, and concentrators.
Use it to annotate electrical diagrams, electronic schematics and circuit diagrams.
"A physical medium in data communications is the transmission path over which a signal propagates.
Many transmission media are used as communications channel.
For telecommunications purposes in the United States, Federal Standard 1037C, transmission media are classified as one of the following:
(1) Guided (or bounded) - waves are guided along a solid medium such as a transmission line.
(2) Wireless (or unguided) - transmission and reception are achieved by means of an antenna.
One of the most common physical medias used in networking is copper wire. Copper wire to carry signals to long distances using relatively low amounts of power. The unshielded twisted pair (UTP) is eight strands of copper wire, organized into four pairs.
Another example of a physical medium is optical fiber, which has emerged as the most commonly used transmission medium for long-distance communications. Optical fiber is a thin strand of glass that guides light along its length.
Multimode and single mode are two types of commonly used optical fiber. Multimode fiber uses LEDs as the light source and can carry signals over shorter distances, about 2 kilometers. Single mode can carry signals over distances of tens of miles.
Wireless media may carry surface waves or skywaves, either longitudinally or transversely, and are so classified.
In both communications, communication is in the form of electromagnetic waves. With guided transmission media, the waves are guided along a physical path; examples of guided media include phone lines, twisted pair cables, coaxial cables, and optical fibers. Unguided transmission media are methods that allow the transmission of data without the use of physical means to define the path it takes. Examples of this include microwave, radio or infrared. Unguided media provide a means for transmitting electromagnetic waves but do not guide them; examples are propagation through air, vacuum and seawater.
The term direct link is used to refer to the transmission path between two devices in which signals propagate directly from transmitters to receivers with no intermediate devices, other than amplifiers or repeaters used to increase signal strength. This term can apply to both guided and unguided media.
A transmission may be simplex, half-duplex, or full-duplex.
In simplex transmission, signals are transmitted in only one direction; one station is a transmitter and the other is the receiver. In the half-duplex operation, both stations may transmit, but only one at a time. In full duplex operation, both stations may transmit simultaneously. In the latter case, the medium is carrying signals in both directions at same time." [Transmission medium. Wikipedia]
The shapes example "Design elements - Transmission paths" 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.
Transmission path symbols
Transmission path symbols, transmission path, terminal, 3-phase, terminal, straight, bus, point, overground, weatherproof, enclosure, optical fiber, line, cable, underground, line, cable, submarine, line, cable, overhead, line, cable, loaded, line, cable, coaxial, line concentrator, lead group, label, path, elbow, bus, direction, flow, transmission path, cable group, cable, conductor, bus, width, anticreep device, cable, 8-line, bus, straight bus connector, 8-line, bus, elbow, 4-line, bus, straight bus connector, 4-line, bus, elbow, 3-line, bus, elbow, 3-line bus, 3-channel, straight bus connector, 2-line, bus, elbow, 2-line bus, 2-channel, straight bus connector,
Used Solutions

Electrical Symbols — Switches and Relays

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 "Transmission paths" contains 43 symbols of power transmission paths, electronic circuits, bus connectors and elbows, terminals, junctions, and concentrators.
Use it to annotate electrical diagrams, electronic schematics and circuit diagrams in the ConceptDraw PRO diagramming and vector drawing software extended with the Electrical Engineering solution from the Engineering area of ConceptDraw Solution Park.
www.conceptdraw.com/ solution-park/ engineering-electrical
2-line bus
2-line bus, 2-line bus, 2-channel, straight bus connector,
3-line bus 2
3-line bus 2, 3-line bus, 3-channel, straight bus connector,
4-line bus
4-line bus, 4-line bus, 4-channel, straight bus connector,
8-line bus
8-line bus, 8-line bus, 8-channel, straight bus connector,
2-line bus elbow
2-line bus elbow, 2-line, bus, elbow,
3-line bus elbow 2
3-line bus elbow 2, 3-line, bus, elbow,
4-line bus elbow
4-line bus elbow, 4-line, bus, elbow,
8-line bus elbow
8-line bus elbow, 8-line, bus, elbow,
3-line bus
3-line bus, 3-line, bus, straight bus,
3-line bus elbow
3-line bus elbow, 3-line, bus, elbow, 3-channel,
4-line bus 2
4-line bus 2, 4-line, bus, straight bus connector,
8-line bus 2
8-line bus 2, 8-line, bus, straight bus connector,
4-line bus elbow 2
4-line bus elbow 2, 4-line, bus, elbow,
8-line bus elbow 2
8-line bus elbow 2, 8-line, bus, elbow,
Point
Point, point,
Terminal
Terminal, terminal,
Terminal 3-phase
Terminal 3-phase, terminal, 3-phase,
Label
Label, label, path,
Flow direction, right
Flow direction, right, direction, flow, transmission path,
Flow direction, left
Flow direction, left, direction, flow, transmission path,
Flow direction, inward
Flow direction, inward, direction, flow, transmission path,
Flow direction, outward
Flow direction, outward, direction, flow, transmission path,
Transmission path
Transmission path, transmission path,
Line, overhead
Line, overhead, line, cable, overhead,
Line, underground
Line, underground, line, cable, underground,
Line, submarine
Line, submarine, line, cable, submarine,
Line, loaded
Line, loaded, line, cable, loaded,
Line, coaxial
Line, coaxial, line, cable, coaxial,
Cable group
Cable group, cable group, cable, conductor,
Lead group
Lead group, lead group,
Anticreep device
Anticreep device, anticreep device, cable,
Line concentrator
Line concentrator, line concentrator,
Overground enclosure
Overground enclosure, overground, weatherproof, enclosure,
Overground enclosure 2
Overground enclosure 2, overground, weatherproof, enclosure,
Optical fiber
Optical fiber, optical fiber,
Optical fiber 2
Optical fiber 2, optical fiber,
Straight bus
Straight bus, straight, bus,
Straight bus 2
Straight bus 2, straight, bus,
Elbow bus
Elbow bus, elbow, bus,
Elbow bus 2
Elbow bus 2, elbow, bus,
Elbow bus 3
Elbow bus 3, elbow, bus,
Elbow bus 4
Elbow bus 4, elbow, bus,
Bus width
Bus width, bus, width,
Used Solutions

Electrical Symbols — Transformers and Windings

Electrical Symbols — Transformers and Windings *
A transformer is an electrical device that transfers electrical energy between two or more circuits through electromagnetic induction. Electromagnetic induction produces an electromotive force within a conductor which is exposed to time varying magnetic fields. Transformers are used to increase or decrease the alternating voltages in electric power applications. 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 "Power sources" contains 9 element symbols of power sources and batteries for drawing the electrical schematics and electronic circuit diagrams.
"A power supply is a device that supplies electric power to an electrical load. The term is most commonly applied to electric power converters that convert one form of electrical energy to another, though it may also refer to devices that convert another form of energy (mechanical, chemical, solar) to electrical energy. A regulated power supply is one that controls the output voltage or current to a specific value; the controlled value is held nearly constant despite variations in either load current or the voltage supplied by the power supply's energy source.
Every power supply must obtain the energy it supplies to its load, as well as any energy it consumes while performing that task, from an energy source. Depending on its design, a power supply may obtain energy from:
(1) Electrical energy transmission systems. Common examples of this include power supplies that convert AC line voltage to DC voltage.
(2) Energy storage devices such as batteries and fuel cells.
(3) Electromechanical systems such as generators and alternators.
(4) Solar power." [Power supply. Wikipedia]
The shapes example "Design elements - Power sources" 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.
Power source symbols
Power source symbols, oscillator, alternating-current source, ideal source, ideal voltage source, ideal source, ideal current source, battery, DC source, DC voltage source, DC source, DC current source, AC source, AC voltage source, AC source, AC current source,
Used Solutions

Electrical Symbols — Rotating Equipment

Electrical Symbols — Rotating Equipment *
Electrical rotating machines, such as motors and generators, are vital assets for any power plant or large industrial company. An electric motor is an electrical machine that converts electrical energy into mechanical energy. The reverse of this would be the conversion of mechanical energy into electrical energy and is done by an electric generator. In normal motoring mode, most electric motors operate through the interaction between an electric motor's magnetic field and winding currents to generate force within the motor. In certain applications, such as in the transportation industry with traction motors, electric motors can operate in both motoring and generating or braking modes to also produce electrical energy from mechanical energy. 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 — Analog and Digital Logic

Electrical Symbols — Analog and Digital Logic *
Digital electronics or digital (electronic) circuits are electronics that handle digital signals – discrete bands of analog levels – rather than by continuous ranges (as used in analogue electronics). All levels within a band of values represent the same numeric value. Because of this discretization, relatively small changes to the analog signal levels due to manufacturing tolerance, signal attenuation or parasitic noise do not leave the discrete envelope, and as a result are ignored by signal state sensing circuitry. 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 — Inductors

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 — Terminals and Connectors

Electrical Symbols — Terminals and Connectors
An electrical connector, is an electro-mechanical device used to join electrical terminations and create an electrical circuit. Electrical connectors consist of plugs (male-ended) and jacks (female-ended). The connection may be temporary, as for portable equipment, require a tool for assembly and removal, or serve as a permanent electrical joint between two wires or devices. 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 — Lamps, Acoustics, Readouts

Electrical Symbols — Lamps, Acoustics, Readouts *
Wiring and circuit diagrams use special symbols recognized by everyone who uses the drawings. The symbols on the drawings show how components like resistors, capacitors, inductors, switches, lamps, acoustic devices, measuring devices and other electrical and electronic components are connected together. 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 — Semiconductor Diodes

Electrical Symbols — Semiconductor Diodes *
In electronics, a diode is a two-terminal electronic component that conducts primarily in one direction (asymmetric conductance); it has low (ideally zero) resistance to the flow of current in one direction, and high (ideally infinite) resistance in the other. A semiconductor diode is a crystalline piece of semiconductor material with a p–n junction connected to two electrical terminals. Today, most diodes are made of silicon, but other semiconductors such as selenium or germanium are sometimes used. 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.