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IEEE C57.21-2008

IEEE C57.21-2008 IEEE Standard Requirements, Terminology, and Test Code for Shunt Reactors Rated Over 500 kVA

standard by IEEE, 08/01/2008

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Full Description

Scope

This standard applies to all oil-immersed or dry-type, single-phase or three-phase, outdoor or indoor shunt reactors rated over 500 kVA. This standard also applies to thyristor-controlled shunt reactors used in static var compensators (SVCs).This standard does not apply to other devices such as the following:a) Shunt reactors, 500 kVA and smallerb) Current-limiting reactors (see IEEE Std C57.16(TM)-19961)c) Arc-suppression coilsd) Neutral-grounding devices (see IEEE Std 32(TM)-1972)e) Saturable reactorsf) Line-resonant reactorsg) Filter reactors

Purpose

This standard specifies the requirements, terminology, and test code for oil-immersed and dry-type shunt reactors rated over 500 kVA and for thyristor-controlled shunt reactors used in SVCs.

Abstract

Revision Standard - Active.All oil-immersed or dry-type, single-phase or three-phase, outdoor or indoor shunt reactors rated over 500 kVA are covered. Terminology and general requirements are stated, and the basis for rating shunt reactors is set forth. Routine, design, and other tests are described, and methods for performing them are given. Losses and impedance, temperature rise, dielectric tests, and insulation levels are covered. Construction requirements for oil-immersed reactors and construction and installation requirements for dry-type reactors are presented. This standard also covers thyristor-controlled shunt reactors used in static var compensators.

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