Wires are not connected. 41 field circuit breaker 42 running circuit breaker 43 manual transfer or selector device 46 reverse phase or phase balance relay 47 phase sequence voltage relay 48 incomplete sequence relay 49 machine or transformer thermal relay 50 instantaneous overcurrent 51 ac time overcurrent relay 52 ac circuit breaker 53 exciter or dc generator relay 54 high speed dc circuit breaker 55 power factor relay 56 field application relay 59 overvoltage relay 60 voltage or.
Electrical And Electronic Symbols And Their Functions Pdf لم
Electrical circuit symbols pdf. Electrical symbols and electronic circuit symbols are used for drawing schematic diagram. Disconnects current when open. For consultation and interpretation of components devices and electrical and electronic circuit. Knowing how to properly take information from an electrical drawing or diagram and apply it to the real world is essential for electricians. Symbols for electrical and electronics diagrams of the american national standards committee y32 graphic symbols and designations. This article shows many of the frequently used electrical symbols for drawing electrical diagrams.
Switches shall be drawn in the off position or not activated no pressure flow etc id. Lesson outcomes the student will be able to. Below are different kind of symbols we mentioned category wise. Basics 6 72 kv 3 line diagram. Basics 7 416 kv 3 line diagram ebooks electrical engineer blueprint symbols electrical engineer blueprint symbols electrical. Know the difference between a circuit.
If an electrician misinterprets a drawing or diagram when wiring a house devices could be incorrectly installed or even missed altogether. Basics 3 416 kv bus 1 line. Understanding circuit symbols and components is another one of the basic building blocks needed to become an electrician. In electronic circuits there are many electronic symbols that are used to represent or identify a basic electronic or electrical device. Though these standard symbols are simplifiedthe function descriptions can make you understand clearly. One line diagrams company document ns 501 502.
While credit for this accomplishment is due all participants and the organizations they represent particular mention is given to the us. No changes can be brought by the user on. Conductor of electrical current. Switch symbols and relay symbols. Selects between two connections. Table of electrical symbols.
There are some standard symbols to represent the components in a circuits. Basics 2 72 kv bus 1 line. These are mostly we used for draw circuit diagrams. Electrical symbols electronic symbols in pdf the largest collection of symbols in the network in pdf format. Symbol component name meaning. Cad name description symbol 07 13 02 contactor 07 13 05 circuit bracher 07 13 02 disconnector isolator off load 07 13 08 switch disconnector on load 07 21 08 fuse disconnectoe off load 07 21.
There has been close cooperation between the industry and dod representatives to provide one standard that can be universally used rather than separate documents with their tendency to differ in various respects. Bn ds e2 symbol for key diagram mv. The symbols represent electrical and electronic components. There are many electrical and electronic schematic symbols are used to signify basic electronic or electrical device. Electrical engineer blueprint symbols 15 pdf drive search and download pdf files for free. Electrical symbols or electronic circuits are virtually represented by circuit diagrams.
Contacts of electrical operated devices shall be shown in the de energized position. This article gives some of the frequently used symbols for drawing the circuits. Basics 5 480 v mcc 1 line. Issue 8 sheet 4 of 40 docno. Electrical engineer blueprint symbols electrical engineer blueprint symbols typical electrical drawing symbols and conventions. Spdt toggle switch.
Basics 4 600 v 1 line. Electrical symbols virtually represent the components of electrical and electronic circuits. They are mostly used to draw a circuit diagram and are standardized internationally by the ieee standard ieee std 315 and the british standard bs 3939.
Gallery of Electrical Circuit Symbols Pdf
