![]() ![]() IEEE 421B1979 Edition, June 1, 1979Complete DocumentHigh-Potential-Test Requirements for Excitation Systems for Synchronous Machines
Includes all amendments and changes through Reaffirmation Notice , 1984
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![]() Description / Abstract:
This standard applies to high-potential testing of complete
excitation systems and their components for synchronous machines.
The components of the excitation system are described in IEEE Std
421-1972, Criteria and Definitions for Excitation Systems for
Synchronous Machines. Also included are auxiliary devices that are
exposed to excitation system stresses. Examples of such auxiliary
devices are temperature indicators, transducers, meters, etc. This
standard does not cover the synchronous- machine field winding or
field circuit breaker and discharge resistor. This standard
supplements existing standards for components used on excitation
systems: ANSI C19.3-1973, Industrial Control Apparatus - General;
ANSI C19.4-1973, Industrial Control Apparatus - Enclosures; ANSI
C19.5-1973, Industrial Control Apparatus - Switching or Controlling
Devices; ANSI C19.6-1973, Industrial Control Apparatus -
Control-Circuit Devices and Assemblies; ANSI C19.7-1973, Industrial
Control Apparatus - Controllers and Controller Assemblies; ANSI
C34.2-1968 (R1973), Practices and Requirements for Semiconductor
Power Rectifiers; ANSI C37.18-1968 (R1975), Requirements for Field
Discharge Circuit Breakers for Rotating Electric Machinery;
ANSI/IEEE C57.12.00-197 3, General Requirements for Distribution,
Power, and Regulating Transformers; ANSI/IEEE C57.12.90-1973, Test
Code for Distribution, Power, and Regulating Transformers; and NEMA
ICs1970 (R1975), Industrial Controls and Systems.
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