HelpDesk

How to Create an Electrical Diagram Using ConceptDraw PRO

There are many of different electric circuit symbols that can be used in a circuit diagram. Knowing how to read circuit diagrams is a useful skill not only for professionals, but for any person who can start creating his own small home electronic projects. The circuit diagram shows the scheme of a location of components and connections of the electrical circuit using a set of standard symbols. It can be use for graphical documentation of an electrical circuit components. The ability to create electrical diagrams and schematic using ConceptDraw PRO is delivered by the Electrical Engineering solution. The solution supplied with samples, templates and libraries of design elements for drawing electrical schematics, digital and analog logic, circuit and wiring schematics and diagrams, power systems diagrams, maintenance and repair diagrams for electronics and electrical engineering.

Engineering

This solution extends ConceptDraw PRO v9.4 with the ability to visualize industrial systems in electronics, electrical, chemical, process, and mechanical engineering.

Design elements - Electrical circuits

The vector stencils library "Electrical circuits" contains 49 element symbols of electrical and electronic devices, including ignitors, starters, transmitters, circuit protectors, transducers, radio and audio equipment.
Use it for drawing electronic circuit diagrams and electrical schematics.
"An electrical network is an interconnection of electrical elements such as resistors, inductors, capacitors, voltage sources, current sources and switches. An electrical circuit is a network consisting of a closed loop, giving a return path for the current. Linear electrical networks, a special type consisting only of sources (voltage or current), linear lumped elements (resistors, capacitors, inductors), and linear distributed elements (transmission lines), have the property that signals are linearly superimposable. They are thus more easily analyzed, using powerful frequency domain methods such as Laplace transforms, to determine DC response, AC response, and transient response.
A resistive circuit is a circuit containing only resistors and ideal current and voltage sources. Analysis of resistive circuits is less complicated than analysis of circuits containing capacitors and inductors. If the sources are constant (DC) sources, the result is a DC circuit.
A network that contains active electronic components is known as an electronic circuit. Such networks are generally nonlinear and require more complex design and analysis tools." [Electrical network. Wikipedia]
The symbils example "Design elements - Electrical circuits" 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.

Electrical circuit elements

Used Solutions

Engineering >

Electrical Engineering

Electrical circuits - Vector stencils library

Ground

Equipotentiality

Igniter plug

Junction

Chassis

Chassis 2

Capacitor

Variable capacitor

Capacitor 2

Variable capacitor 2

Antenna

Antenna 2

Circuit breaker

Fuse

Fuse 2

Alarm fuse

Alarm fuse 2

Circular generic component

Rectangular generic component

Transducer

Capacitive transducer

Non-capacitive transducer

Recording pickup head

Reproducing pickup head

Positive pulse

Negative pulse

Alternating pulse

Saw tooth

Positive step function

Negative step function

Explosive squib

Sensing link squib

Squib ignitor

Unspecified material

Solid material

Semiconducting material

Liquid

Insulating material

Gas

Electret

Surge protector

Multigap surge protector

Valve surge protector

Electrolytic surge protector

Carbon block surge protector

Protective gap surge protector

Sphere gap surge protector

Horn gap surge protector

Circuit breaker

Used Solutions

Engineering >

Electrical Engineering

ConceptDraw Solution Park

ConceptDraw Solution Park collects graphic extensions, examples and learning materials

Design elements - Terminals and connectors

The vector stencils library "Terminals and connectors" contains 43 element symbols of terminals, connectors, plugs, polarized connectors, jacks, coaxial cables, and conductors.
Use it for drawing the wiring diagrams, electrical layouts, electronic schematics, and circuit diagrams.
"An electrical connector is an electro-mechanical device for joining electrical circuits as an interface using a mechanical assembly. 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. An adapter can be used to effectively bring together dissimilar connectors.
There are hundreds of types of electrical connectors. Connectors may join two lengths of flexible copper wire or cable, or connect a wire or cable or optical interface to an electrical terminal.
In computing, an electrical connector can also be known as a physical interface... Cable glands, known as cable connectors in the US, connect wires to devices mechanically rather than electrically and are distinct from quick-disconnects performing the latter." [Electrical connector. Wikipedia]
"A terminal is the point at which a conductor from an electrical component, device or network comes to an end and provides a point of connection to external circuits. A terminal may simply be the end of a wire or it may be fitted with a connector or fastener. In network analysis, terminal means a point at which connections can be made to a network in theory and does not necessarily refer to any real physical object. In this context, especially in older documents, it is sometimes called a "pole".
The connection may be temporary, as seen in portable equipment, may require a tool for assembly and removal, or may be a permanent electrical joint between two wires or devices.
All electric cell have two terminals. The first is the positive terminal and the second is the negative terminal. The positive terminal looks like a metal cap and the negative terminal looks like a metal disc. The current flows from the positive terminal, and out through the negative terminal, replicative of current flow (positive (+) to negative (-) flow)." [Terminal (electronics). Wikipedia]
The shapes example "Design elements - Terminals and connectors" 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.

Terminal and connector symbols

Used Solutions

Engineering >

Electrical Engineering

HelpDesk

How to Draw an Electrical Scheme Using ConceptDraw Solution Park

Electrical diagram created with ConceptDraw PRO

The ability to visualize industrial systems in electronics, electrical, chemical, process, and mechanical engineering is delivered by the ConceptDraw Engineering solution.

Switches and relays - Vector stencils library

SPST

SPDT

DPST

DPDT

Make contact

Break contact

Two way contact

Passing make-contact

Spring return

Stay put

Limit switch

Circuit breaker

Spring return 2

Spring return 3

Limit switch n/o

Limit switch n/c

2 position switch

3 position switch

4 position switch

Manual switch

Pushbutton make

Pushbutton break

Pushbutton 2-circuit

Selector switch

Shorting selector

Proximity limit switch

Time delay make

Time delay break

Time delay make 2

Time delay break 2

Safety interlock

Flow actuated

Liquid level actuated

Liquid level actuated 2

Gas flow actuated

Pressure actuated

Temperature actuated

Thermostat

Temperature switch

Inertia switch

Mercury switch

Mercury switch 2

Fuse

Switch disconnector

Isolator

Change-over contact

Relay contacts

Relay coil

Pilot light

Pilot light, push-to-test

Relay, alternating-current

Relay, magnetically polarized

Relay, slow-operate

Relay, slow-release

Relay

Relay, high speed

Relay, mechanically latched

Relay, permanent

Used Solutions

Engineering >

Electrical Engineering

Design elements - Switches and relays

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