Electrical Switchgear Symbols Pdf

In an electric power system switchgear is composed of electrical disconnect switches fuses or circuit breakers used to control protect and isolate electrical equipment.

Electrical switchgear symbols pdf. To indicate static switching control use the symbols shown in this table enclosing them in a diamond as shown. Units symbols for electrical electronic engineering the iet 2016 the institution of engineering and technology is registered as a charity in england wales no 211014 and scotland no sc038698. The electrical standards adopted by various nations may vary the markings and symbols used to describe electrical control products vary as well. This website uses cookies.

This action was proposed by the committee on electrical symbols under the. You can see our cookies policy here if you continue browsing this site. The largest collection of symbols in the network. Graphic symbols for electrical and electronics diagrams rexdale october 9 1975 american national standard y32 2 1975 ieee std 315 1975 with the modifications shown in section 100 has been approved as csa standard z99.

Whether it is a complex control system on a machine tool or a simple across the line motor starter the need to recognize and understand these symbols becomes more important. Basics 4 600 v 1 line. Sf6 is used in electrical equipment because of its dielectric strength excellent insulating properties and its arc suppression capabilities. 02 13 26 operated by electric motor m 02 13 27 operated by electric clock 02 14 01 control by fluid level 02 14 03 control by flow nen j 92 operated by pedal note.

Basics 7 4 16 kv 3 line diagram. Only action is descripted and a switch is shown for clarification. Basics 2 7 2 kv bus 1 line. Supplementary contact symbols iec symbols static switching control static switching control is a method of switching electrical circuits without the use of contacts primarily by solid state devices.

Electrical plan symbols electrical one line symbols duplex receptacle a circuit designation b device type designation quadruplex receptacle a circuit designation. Electrical symbols and electronic symbols in pdf. For consultation and interpretation of components and electrical circuit. Switchgear is used both to de energize equipment to allow work to be done and to clear faults downstream.

Basics 6 7 2 kv 3 line diagram. 10 a but a few amperes. Single pole single throw. Symbol can also be used for circuit breackers isolators a s o.

Unit symbols unit symbols are printed in upright roman characters and are used after numerical values e g. Since 1960 sf6 sulfur hexafluoride is used in electrical equipment switchgear and devices and also in other applications like arc furnaces window insulation car tires and sport shoes. Swgr switchgear swbd switchboard sw switch stb shorting terminal block ss solid state spkr speaker spst single pole single throw.