IEEE 120-1989
IEEE Master Test Guide for Electrical Measurements in Power Circuits
standard by IEEE, 11/10/1989
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About This Item
Full Description
Scope
The methods given here relate to measurements, as made with either analog or digital indicating or integrating
instruments, of power, energy, voltage, and current, in dc or ac rotating machines, transformers, induction apparatus,
arc and resistance heating equipment, mercury arc, theremionic, or solid-state rectifiers and inverters. Measurements
made with supplementary instruments and devices are also included. This guide does not deal with measurements of
resistance or temperature that are often included in determining the performance characteristics of electric machinery.
Instruments for these latter measurements will be found in the specific publications dealing with the particular
measurement, such as IEEE Std 118-1978, IEEE Standard Test Code for Resistance Measurements [4]1, and IEEE Std
119-1974, IEEE Recommended Practice for General Principles of Temperature Measurement as Applied to Electrical
Apparatus [5].
Purpose
It is the purpose of this guide to give instructions for those measurements of electrical quantities that are commonly
needed in determining the performance characteristics of electric machinery and equipment. The choice of the
measurement method and instrument systems to be used depends on the purpose of the measurement, the accuracy
required, the time and testing equipment available, and the nature of the circuit.
Abstract
Revision Standard - Inactive-Reserved.
Instructions are given for measuring electrical quantities that are commonly needed to determine the performance characteristics of electric machinery and equipment. Methods are given for measuring voltage, current, power, energy, power factor, frequency, impedance, and magnetic quantities, with either analog or digital indicating or integrating instruments, in DC or AC rotating machines, transformers, induction apparatus, arc and resistance heating equipment, mercury arc, theremionic, or solid-state rectifiers and inverters. Ancillary instruments and equipment are discussed. Computer-based techniques and the use of optical fibers in instrumentation are considered.
