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ANSI Standard Device Numbers & Common Acronyms. Device No. Description. Master Element. 2. Time Delay Starting or Closing Relay. 3. Checking or Interlocking Realy.
30 - Annunciator Relay. 32 - Directional Power Relay. 36 - Polarity or Polarizing Voltage Devices. 37 - Undercurrent or Underpower Relay. 38 - Bearing Protective Device. 39 - Mechanical Conduction Monitor. 40 – Loss of Field Relay. 41 - Field Circuit Breaker. 42 - Running Circuit Breaker.
ANSI device numbers. In electric power systems and industrial automation, ANSI Device Numbers can be used to identify equipment and devices in a system such as relays, circuit breakers, or instruments. The device numbers are enumerated in ANSI / IEEE Standard C37.2 Standard for Electrical Power System Device Function Numbers, Acronyms, and ...
Symbols for Electrical and Electronics Diagrams of the American National Standards Committee Y32, Graphic Symbols and Designations. There has been close cooperation between the industry and DOD representatives to
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The Metric Practice Guide, which has been published by the Institute of Electrical and Electronics Engineers as ANSI/IEEE Std. 268-1982, and future revisions will be the reference guide for definitions, symbols, abbreviations, and conversion factors.
ANSI Y32.2: The American National Standard Graphic Symbols for Electrical and Electronics Diagrams (Including Reference Designation Letters). ANSI Y32.9: American National Standard Graphic Symbols for Electrical Wiring and Layout Diagrams Used in Architecture and Building Construction.
