IEEE 43-2000 pdf download IEEE Recommended Practice for Testing Insulation Resistance of Rotating Machinery
1.Overview
1.1 Scope
This document describes a recommended procedure for measuring insulation resistance of armature andfeld windings in rotating machines rated 1 hp, 750 W or greater. It applies to synchronous machinesinduction machines, dc machines, and synchronous condensers. It does not apply to fractional-horsepowermachines.
The document also describes typical insulation resistance characteristics of rotating machine windings andhow these characteristics indicate winding condition, It recommends minimum acceptable values of insulation resistance for ac and dc rotating machine windings.
Other IEEE standards that include information on insulation resistance measurement are listed in Clause 2
1.2 Purpose
The purpose of this recommended practice is to
a) Define insulation resistance and polarization index testing of the winding of a rotating machine.
b) Review the factors that affect or change insulation resistance characteristics.
c) Recommend uniform test conditions.
d) Recommend uniform methods for measuring insulation resistance with precautions to avoid erroneous results.
e) Provide a basis for interpreting insulation resistance test results to estimate winding suitability for service or for an overvoltage test. In particular, this standard describes typical insulation problems detected by the insulation resistance test.
f) Present recommended minimum acceptable insulation resistance values and polarization indices for various types of rotating machines.
2. References
This recommended practice shall be used in conjunction with the following publications. When the follow-ing standards are superseded by an approved revision, the revision shall apply.
ASTM D257-99 Standard Test Methods for DC Resistance or Conductance of Insulating Materials.
ASTM D1711-99 Standard Terminology Relating to Electrical Insulation.
ASTM F855-97el Standard Specifications for Temporary Protective Grounds to Be Used on De-energizedElectric Power Lines and Equipment.
IEC 60085-1: 1984, Thermal evaluation and classification of electrical insulation.
IEEE Std 56-1977 (Reaff 1991), IEEE Guide for Insulation Maintenance of Large Alternating-CurrentRotating Machinery (10 000 kVA and Larger).3, 4
IEEE Std 62-1995,IEEE Guide for Diagnostic Field Testing of Electric Power Apparatus–Part 1: Oil FilledPower Transformers,Regulators,and Reactors.
IEEE Std 67-1990 (Reaff 1995), EEE Guide for Operation and Maintenance of Turbine Generators
IEEE Std 95-1977 (Reaff 1991), IEEE Recommended Practice for Insulation Testing of Large AC RotatingMachinery With High Direct Voltage.
IEEE Std 118-1978 (Reaff 1992), EEE Standard Test Code for Resistance Measurements.
IEEE Std 432-1992 (Reaff 1998), IEEE Guide for Insulation Maintenance for Rotating Electric Machinery(5 hp to less than 10 000 hp).
IEEE Std 433-1974 (Reaff 1991). IEEE Recommended Practice for Insulation Testing of Large AC RotatingMachinery with High Voltage at Very Low Frequency.
IEEE Std 434-1973 (Reaff 1991), IEEE Guide for Functional Evaluation of Insulation Systems for LargeHigh-Voltage Machines.
IEEE Std 492-1999 EEE Guide for Operation and Maintenance of Hydro-Generators.
IEEE Std 510-1983 (Reaff 1992), IEEE Recommended Practices for Safety in High-Voltage and HighPower Testing.
IEEE 43-2000 pdf download
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