Language:
    • Available Formats
    • Options
    • Availability
    • Priced From ( in USD )
    • Printed Edition
    • Ships in 1-2 business days
    • $71.00
    • Add to Cart
    • Printed Edition + PDF
    • Immediate download
    • $81.00
    • Add to Cart

Customers Who Bought This Also Bought

 

About This Item

 

Full Description

Scope

This guide describes three methods used in the measurement of the power factor of inductive low-voltage (1000 V and lower) test circuits. These methods may be used at any frequency; however, the values in the tables are specifically for 60-Hz test circuits. These methods are as follows: a) Ratio method; b) DC decrement method; c) Phase relationship method. Table 1 lists the preferred methods to be used for different levels of test currents and for different levels of power factor. While this guide is primarily intended for use on low-voltage test circuits, the methods discussed are also usable at higher voltages.

Purpose

The purpose of this guide is to recommend methods of measuring the power factor for inductive test circuits, so that the preferred method giving the greatest accuracy is recommended for any particular circuit.

Abstract

Revision Standard - Active. Methods for determining the value of the power factor for inductive low-voltage (1000 V ac and lower) test circuits are provided. These methods are used in determining the power factor during short-circuit current tests in high-power laboratories. It is preferred that these methods be used during short-circuit current testing. Alternatively, other methods (including use of computerized or digital techniques) may be used, but the method used shall have been validated as producing results equivalent to those obtained using the methods in this guide. The methods described are intended for use in low-voltage test circuits (under 1000 V ac) but may also be used for higher voltages.
 

Document History

  1. IEEE C37.26-2014

    👀currently
    viewing


    IEEE Guide for Methods of Power-Factor Measurement for Low-Voltage (1000 V AC or lower) Inductive Test Circuits

    • Most Recent
  2. IEEE C37.26-2003


    IEEE Guide for Methods of Power-Factor Measurement for Low-Voltage Inductive Test Circuits

    • Historical Version
  3. IEEE C37.26-1972


    IEEE Standard Guide for Methods of Power-Factor Measurement for Low-Voltage Inductive Test Circuits

    • Historical Version