The existence of an ieee standard does not imply that there. Ieee std 432000r2006 ieee recommended practice for testing insulation resistance of rotating machinery american national standards institute ieee sa standards board. Ieee std 43 2000 revision of ieee std 43 1974 ieee worth avenue. In march 2000, the ieee sa standards board approved a revision to ieee std 431974. The ieee std 432000 recommends the minimum value of pi for ac and dc rotating machinery in thermal class a be. Standard details it applies to synchronous machines, induction machines, dc machines, and synchronous condensers. With this in mind, an impedance based test impedance includes resistance, inductance, capacitance and frequency compared to other test results such as resistance and inductance, could be used as the ac test. A guide to diagnostic insulation testing above 1 kv. Ieee 432000 ieee sa the ieee standards association. Ieee 4320 ieee recommended practice for testing insulation resistance of electric machinery. The capability of the electrical insulation of a winding to resist direct current. Preventive maintenance test with insulation resistance test. A standard ir test could be used to accomplish the dc test. Rc is the insulation resistance corrected to 40 c kt is the insulation resistance temperature coefficient at t degrees c.
Gursrzhujhqhudwru a singh the application of surface. The ieee also provides typical guidelines for for accurate lowresistance measurements. Users will often go directly to a hipot ieee modern types of filmcoated wire, as well as epoxymica or polyestermica insulated stator windings, may approach a ieee value of insulation resistance in 4 min or less. Pdf measurement variations of insulation resistance. The ieee disclaims any responsibility or liability resulting from the placement and use in the described matter. The ieee recommended practice for testing insulation resistance of rotating machinery, had been updated because during the 1970 s, several changes we. Megger mit5155251025 5kv10kv insulation resistance.
Easa senior technical support specialist the institute of electrical and electronics engineers ieee standard for insulation resistance testing of motor and generator windings that was published in 2002 has been revised. The quotient of applied direct voltage of negative polarity divided by current across machine insulation, corrected to 40 c and taken at a specified time t from start of voltage application. Mar 23, 2000 this document describes the recommended procedure for measuring insulation resistance of armature and field windings in rotating machines rated 1 hp, 750 w or greater. Some new insulation systems have a faster response to the insulation test. Today, the ieee lists the following as active insulation test standards, recommended practices and guides that are used by both manufacturers and users 1 6. Othere ieee standards that include information on insulation resistance measurement are listed in clause 2. This article will discuss each of the changes to ieee std. This revision is ieee std 432000, the ieee recommended practice for testing insulation resistance of rotating machinery.
Pdf testing and simulation of motor insulation system. Megger a guide to insulation testing above 1 kv datasheet pdf. This document describes the recommended procedure for measuring insulation resistance of armature and field windings in rotating machines rated 1 hp, 750 w or greater. In particular, it identifies the complexities of performing pi tests and notes their limitations. This introduction is not part of ieee std 432000, ieee recommended practice for testing insulation resistance of rotating machinery. Documents sold on the ansi webstore are in electronic adobe acrobat pdf format, however some iso and iec standards are available from amazon in hard copy format. This introduction is not part of ieee std 432000, ieee recommended practice for testin. Motors and drives testing the insulation resistance of rotating. Facilities instructions, standards, and techniques volume 31. Portable measurement equipment in a wide variety of fields. Test voltage level derived from ieee 432000 recommended practice for testing insulation resistance of rotating machinery 6. Preventive maintenance test with insulation resistance.
Facilities instructions, standards, and techniques volume 31 testing solid insulation of electrical equipment internet version of this manual created september 2000 facilities engineering branch denver office denver, colorado the appearance of the internet version of this manual may differ from the original, but the contents do not. Keysight technologies preventive maintenance test with. Buy this standard access via subscription explore this standard. In march 2000, the ieee sa standards board approved a revision of ieee std 431974 by the electric machinery.
Ieee std 951977 reaff 1991, ieee recommended practice for insulation testing of large ac rotating machinery with high direct voltage. Whats new in the ieee 43 insulation resistance testing standard. Contained within this document is the general theory of insulation resistance ir and polarization index p. Ieee recommended practice for testing insulation resistance. This document describes the recommended procedure for measuring insulation resistance of. Troubleshooting with insulation resistance test instruments. Ieee standard for the testing, design, installation, and maintenance of electrical resistance. Ieee standards association recommended resistance of electric machinery. Pdf testing and simulation of motor insulation system under. Introduction the standard that all of us have lived by for insulation resistance testing was reissued in may, 2000. Ieee std 432000 r2006 recommended practice for testing insulation resistance free download as pdf file.
Isbn 0738149063 ss95518 no part of this publication may be reproduced in any form, in an electronic retrieval system or otherwise, without the prior. Ieee standards ieee spectrum more sites etools standards find standards, standards in development, learn about the standards development lifecycle, and much more. The purpose of insulation resistance ir reading is to evaluate the condition. Ieee std 432000revision of ieee std 431974 ieee recommended practice for testing insulation resistance of rotating machinery sponsor electric machinery committee of the ieee power engineering society approved 6 march 2000 ieeesa standards board abstract. The first change in the new document is a slight change in the title. Norma ieee this resource is available in spanish it has changed from ieee recommended practice for testing insulation resistance of rotating machinery to. Ieee standard 432000 recommends a procedure for measuring insulation resistance of armature and field windings in rotating machines. Ieee standard for the testing, design, installation, and. This document describes the recommended procedure for measuring insulation resis tance of armature and field windings in rotating machines rated 1 hp, 750 w or greater. Testing insulation resistance between the phases ug is 2. Only differences are the test equipment rating and applied voltages neta mts 2015 for switchgear. This article will discuss each of the changes referencing directly to ieee std. Provision for polarization index measurement based on test duration 9. The revised standard, 1,000v to 2,500v 500v to 1,000v ieee std.
Megger has offered a 10 kv insulation resistance tester since 2001. Mar 14, 2016 the standard that we generally reference within industry is the ieee 43, which went through a major revision in may, 2000. Ieee standard 432000, recommended practice for testing insulation resistance of rotating machines, recommends the insulation test voltage to apply, based on winding rating, and minimum acceptable values for electric motor windings. Ieee std 432000r2006 recommended practice for testing. Aug 04, 2014 the ieee std 432000 indicates that the minimum insulation resistance for ac and dc machine stator windings and rotor windings can be determined by. Whats new in the ieee 43 insulation resistance testing. The ieee recommended practice for testing insulation resistance of rotating machinery, std 432000, emphasizes the need for upgrading current. This introduction is not part of ieee std 432000, ieee recommended practice for testing. Table 31, mediumvoltage cables maximum field acceptance test. Pdf ieee std 432000r2006 ieee recommended practice for. The types of insulation used in rotating machines have continued to evolve and precipitate changes to insulation resistance testing since 1974 when ieee std. The dc voltage tests procedures for the measurement of the insulation resistance and polarization index of insulated stator, and rotor windings and how to interpret the results are described in this recommended practice.
The ieee disclaims liability for any personal injury, property or other damage, of any nature whatsoever, whether special, indirect, consequential, or compensatory, directly or indirectly resulting from the publication, use of, or reliance upon this, or any other ieee standard document. Leakage current measurement reference design for determining. Ieee standard 432000 states that in order to avoid the effects of temperature in trend analysis, all tests should be corrected to a common base temperature of 40 degrees c using the following equation. It applies to synchronous machines, induction machines, dc machines, and synchronous condensers.
Standards subscriptions from ansi provides a moneysaving, multiuser solution for accessing standards. It recommends minimum acceptable values of insulation resistance for ac and dc rotating machine windings. Pdf ieee std 432000r2006 ieee recommended practice. Ieee standards documents are developed within the ieee societies and the standards coordinating com. Jul, 2019 whats new in the ieee 43 insulation resistance testing standard. This document describes the recommended procedure for measuring insulation resis tance of armature and field windings in. Ieee std 432000 recommends a procedure for measuring insulation resistance of armature and field windings in rotating machines rated 1. It was updated because post 1970 insulation systems went through a series of changes in their chemical makeup. Megger mit5155251025 5kv10kv insulation resistance testers. The ieee std 432000 recommends the minimum value of pi for ac and dc rotating machinery in thermal class a be 1. Onboard isolated 500v power supply to measure insulation resistance 7. Paul, electrical power equipment maintenance and testing. This revision is ieee std 432000, the ieee recommended practice for.
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