Ansi Symbols Electrical

Ieeestd3151975r1993 graphic symbols for electrical and electronics diagrams including reference designation letters customer service.

Ansi symbols electrical. These types of devices protect electrical systems and components from damage when an unwanted event occurs such as an electrical fault. Protection relay ansi standards. Ansi ieee standard device numbers 1 master element 2 time delay starting or closing relay 3 checking or interlocking relay 4 master contactor 5 stopping device 6 starting circuit breaker 7 rate of change relay 8 control power disconnecting device 9 reversing device 10 unit sequence switch 11 multifunction device. Standards and conformity assessment system the american national standards institute ansi.

In the design of electrical power systems the ansi standard device numbers ansi ieee standard c37 2 standard for electrical power system device function numbers acronyms and contact designations identifies the features of a protective device such as a relay or circuit breaker these types of devices protect electrical systems and components from damage when an unwanted event occurs such. In the design of electrical power systems the ansi standard device numbers ansi ieee standard c37 2 denote what features a protective device supports such as a relay or circuit breaker. In the design of electrical power systems the ansi standard device numbers denote what features a protective device supports such as a relay or circuit breaker. Ansi y32 2 1975 csa z99 1975 ieee std 315 1975 revision of ansi y32 2 1972 csa z99 1972 ieee std 315 1971 ieee standards coordinating committee 11 graphic symbols secretariat for american national standards committee y32 american society of mechanical engineers institute of electrical and electronics engineers approved october 31 1975.