Original scientific paper

Standards relevant to transformers – Part II

P. Ramachandran ; ABB

Abstract

The first step taken by the American Institute of Electrical Engineers (AIEE, formed in 1884) towards the standardisation of electrical apparatus and methods, was a discussion on the standardization of generators, motors and transformers, which took place simultaneously in New York and Chicago on 29 January 1898. A committee was appointed by the Council of the Institute under the chairmanship of Prof. Francis B. Crocker, and included eminent electrical engineers of the day, such as Charles P. Steinmetz, Lewis B. Stillwell (Niagara Power Company) and Elihu Thomson. The first standard (or ‘rules’, as they were called then), was presented and adopted by the Institute on 26 June 1899. This common standard for generators, motors and transformers was subsequently revised ten times during the next 22 years. In 1907, a standing committee, called the Standards committee, was constituted to continually monitor and revise this standard. This committee continued to grow over the years with several subcommittees to work on individual products required for electric power industry. Over the years, the input into the standardisation rules was also obtained from the Association of Edison Illuminating Companies (AEIC), the Electric Power Club (later to become the National Manufacturers Association, NEMA), the National Electric Light Association (NELA, the forerunner to the Edison Electrical Institute, EEI), and others. In parallel to AIEE, these organisations also began to issue standards. For example, in 1916, NELA issued a report on the standardisation of power ratings, voltages and taps for transformers (probably the first exclusive US), and NEMA standards on transformers that are still in vogue today. AIEE standards committee formed a separate subcommittee (No. 8) for transformers in 1918. Until 1921, transformer standard was a chapter in the common rules of standardization, titled Stationary induction apparatus.

Keywords

AIEE, IEEE, history, standards, transformers

Hrčak ID:

242415

URI

https://hrcak.srce.hr/242415

Publication date:

8.7.2020.

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