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IEEE 433
Recommended Practice for Insulation Testing of AC Electric Machinery with High Voltage at Very Low Frequency
Year: 2009
Abstract: This document describes very low frequency (VLF) testing of ac electric machines. It covers acceptance testing of new machines in the factory or on-site after erection. Also covered is the routine maintenance testing of machines that have been in service. In order to facilitate communication and comparison among investigators, this document recommends that the VLF used be 0.1 Hz ± 10%.
Purpose
The purposes of this recommended practice are as follows:
a) To provide a uniform procedure for testing the stator (armature) insulation of ac electric machines with VLF voltage, in order to obtain consistent results
b) To recommend constants for relating VLF tests to power-frequency and direct-voltage tests to obtain equally effective test levels
c) To describe VLF test equipment and wave shape
d) To define terms that have specific meaning in VLF testing.
Purpose
The purposes of this recommended practice are as follows:
a) To provide a uniform procedure for testing the stator (armature) insulation of ac electric machines with VLF voltage, in order to obtain consistent results
b) To recommend constants for relating VLF tests to power-frequency and direct-voltage tests to obtain equally effective test levels
c) To describe VLF test equipment and wave shape
d) To define terms that have specific meaning in VLF testing.
Subject: ac electric machine testing
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| contributor author | IEEE - The Institute of Electrical and Electronics Engineers, Inc. | |
| date accessioned | 2017-09-04T18:24:09Z | |
| date available | 2017-09-04T18:24:09Z | |
| date copyright | 40156 | |
| date issued | 2009 | |
| identifier other | IFWIQCAAAAAAAAAA.pdf | |
| identifier uri | https://yse.yabesh.ir/std/handle/yse/206533 | |
| description abstract | This document describes very low frequency (VLF) testing of ac electric machines. It covers acceptance testing of new machines in the factory or on-site after erection. Also covered is the routine maintenance testing of machines that have been in service. In order to facilitate communication and comparison among investigators, this document recommends that the VLF used be 0.1 Hz ± 10%. Purpose The purposes of this recommended practice are as follows: a) To provide a uniform procedure for testing the stator (armature) insulation of ac electric machines with VLF voltage, in order to obtain consistent results b) To recommend constants for relating VLF tests to power-frequency and direct-voltage tests to obtain equally effective test levels c) To describe VLF test equipment and wave shape d) To define terms that have specific meaning in VLF testing. | |
| language | English | |
| title | IEEE 433 | num |
| title | Recommended Practice for Insulation Testing of AC Electric Machinery with High Voltage at Very Low Frequency | en |
| type | standard | |
| page | 30 | |
| status | Active | |
| tree | IEEE - The Institute of Electrical and Electronics Engineers, Inc.:;2009 | |
| contenttype | fulltext | |
| subject keywords | ac electric machine testing | |
| subject keywords | ac electric machines | |
| subject keywords | diagnostic test | |
| subject keywords | high-potential (hipotential) test | |
| subject keywords | over potential test | |
| subject keywords | proof testing | |
| subject keywords | safety | |
| subject keywords | very low frequency testing | |
| subject keywords | VLF testing | |
| subject keywords | withstand test |