Mar 23, 2000 ieee xplore, delivering full text access to the worlds highest quality technical literature in engineering and technology. In particular, this standard describes typical insulation problems. Ieee std 432000 revision of ieee std 431974 ieee recommended practice for testing insulation resistance. In particular, it identifies the complexities of performing pi and ir tests and notes their limitations.
Used in motor current signature analysis as a method of removing the fundamental frequency from current fft spectra. With the release of ieee std 43 2000, new limitations on the use and evaluation of pi were issued. The ieee recommended practice for testing insulation resistance of with the release of ieee std 432000, new limitations on the use and evaluation of pi. Contained within this document is the general theory of insulation resistance ir and polarization index p. Ieee guide for insulation maintenance for rotating electric machinery 5 hp to less than 10 000 hp abstract. Electric power engineering consulting and training rotor testing ctgs users group meeting las vegas november 2015 izzy kerszenbaum. Ieee std 10152006 blue recommended practice for applying lowvoltage circuit breakers used in industrial and commercial power systems. 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. This article will discuss each of the changes referencing directly to ieee std. I eee standards 1110tm ieee guide for synchronous generator modeling practices and applications in power system stability analyses published by the institute of electrical and electronics engineers, inc. Ieee std 43 2000 r2006 revision of ieee std 43 1974 ieee recommended practice for testing insulation resistance of rotating machinery sponsor electric machinery committee of the ieee power engineering society approved 12 october 2000 american national standards institute reaffirmed 30 march 2006 approved 6 march 2000 ieee sa standards board.
With the release of ieee std 432000, new limitations on the use and evaluation of pi were issued. Ieee std 11101991 1110 tm eee standards ieee standards. Ieee recommended practice for testing insulation resistance of. Paul, electrical power equipment maintenance and testing. Pdf ieee std 432000r2006 ieee recommended practice. Recommended practice for testing insulation resistance of rotating machinery. Ieee std 432000 recommends a procedure for measuring insulation resistance of armature and field windings in rotating machines rated 1 hp, 750 w or greater and applies to synchronous machines, induction machines, dc machines and synchronous condensers. Isbn 0738119253 ss94806 no part of this publication may be reproduced in any form, in an electronic retrieval system or otherwise, without the prior written permission of the publisher. Explain how the ieee 432000 standard correlates to the mce tester. It applies to synchronous machines, induction machines, dc machines, and. Ieee std 1122004, ieee standard test procedure for polyphase. In march 2000, the ieee sa standards board approved a revision to ieee std 431974. Ieee recommended practice for testing insulation resistance. Ieee recommended practice for testing insulation resistance of electric machinery redline abstract.
The purpose of this recommended practice is to a define insulation resistance and polarization index testing of the winding of a rotating machine. Motors and drives testing the insulation resistance of rotating. When the ieee sa standards board approved a revision of ieee standard 43 1974 by the electric machinery committee of the ieee power engineering society, the document became ieee standard 43 2000, the ieee recommended practice for testing insulation resistance of rotating machinery. Penrose is the general manager for the alltest pro division of bjm corp. The first change in the new document is a slight change in the title. When the ieeesa standards board approved a revision of ieee standard 431974 by the electric machinery committee of the ieee power engineering society, the document became ieee standard 432000, the ieee recommended practice for testing insulation resistance of rotating machinery this revision underscores the need for upgrading current practices to accommodate changes and. The ieee recommended practice for testing insulation resistance of rotating machinery, std 432000, emphasizes the need for upgrading current. In this standard, information necessary to permit an effective evaluation of the insulation systems of medium and small rotating electric machines is presented. After the test is done, a lot of information is available in the form of parameters, all of them giving an. Experience with stator insulation testing iris power. The insulation resistance characteristics of new insulation systems are different from the older systems and therefore revision to the standard for measuring insulation resistance, including polarization index pi, has become imperative.
Segundos mohms 5 2618 10 4077 15 4911 20 5069 25 5712 30 7047 35 8214 40 8550 45 8089 50 8574 55 8072 7316 figura no 3. Measured by rtd, thermocouple or bulbtype thermometer. At a, the effect of aging and dust accumulation is shown by decreasing values. Ieee recommended practice for testing insulation resistance of rotating machinery chicago.
Ieee 43 2000 claims that before any insulation testing can take place, safety24 mar 2000 pdf. Ieee std 432000 revision of ieee std 431974 ieee recommended practice for testing insulation resistance of. Ieee standard 432000 recommends a procedure for measuring insulation resistance of armature and field windings in rotating machines. Rotating machines, and other recognized organizations. Ieee std 432000 recommends a procedure for measuring insulation resistance of armature and field windings in rotating machines rated 1 hp, 750 w or greater. Testing the insulation resistance of rotating machinery. No longer is the test easy and straightforward as many changes have occurred with the insulation systems themselves. Ieee std 432000 revision of ieee std 431974 ieee recommended practice for testing insulation resistance of rotating machinery sponsor electric. Other ieee standards that include information on insulation resistance measurement are listed in clause 2. The ieee disclaims any responsibility or liability resulting from the placement and use in the described matter. Measurement is trended and values to ground increasing over time indicate surface.
Megger a guide to insulation testing above 1 kv datasheet pdf. Ieee guide for insulation maintenance for rotating. 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. Sep 19, 2018 the ieee recommended practice for testing insulation resistance of with the release of ieee std 43 2000, new limitations on the use and evaluation of pi. The test is repeated at two different and increasing voltages usually 2nd voltage is 2 1st voltage in order to check the linearity of the insulation with voltage. Ieee std 1110z2002 revision of ieee std 11101991 i eee standards 1110tm ieee guide for synchronous generator modeling practices and applications in power system stability analyses published by the institute of electrical and electronics engineers, inc. In both cases the voltage is increased slowly in about 1 minute or less to the specified hipot test level, and then maintained at that level for one minute.
Ieee recommended practice for testing insulation resistance of rotating machinery. Ieee std 432000, ieee recommended practice for testing insulation resistance of. A guide to diagnostic insulation testing above 1 kv. Whats new in the ieee 43 insulation resistance testing standard. It does not apply to fractional horsepower machines. In march 2000, the ieeesa standards board approved a revision to ieee std 431974. Ieee xplore 43 2000 ieee recommended practice for testing insulation resistance of rotating machinery ieee standard. 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. It applies to synchronous machines, induction machines, dc machines, and synchronous condensers. Understanding insulation resistance testing pdf 0206 rev. Ieee is the worlds largest technical professional organization dedicated to advancing technology for the benefit of humanity.
Ieee 432000 claims that before any insulation testing can take place, safety24 mar 2000 pdf. This document describes the recommended procedure for. Testing solid insulation of electrical equipment, december 1991. This document describes the recommended procedure for measuring insulation resis. Temperature limits vary but generally fall in the range of 90100c for alarm and 105120c for shutdown.
Timeresistance testing method this method is fairly independent of temperature and often. Vuspec this vuspec collection contains 26 active ieee standards, guides and recommended practices used worldwide pertinent to the generation of electric energy and its conversion into other forms of electric or. Explain how the ieee 43 2000 standard correlates to the mce tester. Ieee std 43 2000 revision of ieee std 43 1974 ieee recommended practice for testing insulation resistance of rotating machinery sponsor electric machinery c ommittee of the ieee power engineering society approved 6 march 2000 ieee sa standards board abstract. The quotient of the insulation resistance at time t2 divided by the insulation resistance at time t1.
For instance, most new insulation systems start with test results in the gigohm and terraohm billions and trillions of ohms. Pdf measurement variations of insulation resistance. The ieee std 43 2000 lists the following minimum values for the polarization index for ac and dc rotating machines. Segundos mohms 5 2618 10 4077 15 4911 20 5069 25 5712. The ieee std 432000 lists the following minimum values for the polarization index for ac and dc rotating machines. Tm 5694 commissioning of electrical systems for command. A29a29m99e1 standard specification for steel bars, carbon and alloy, hotwrought and coldfinished, general requirements for. Ieee recommended practice for testing insulation resistance of electric. Pdf ieee std 432000r2006 ieee recommended practice for. The guide is intended to apply in general to industrial aircooled machines. The purpose of insulation resistance ir reading is to evaluate the condition. Othere ieee standards that include information on insulation. Electric power engineering consulting and training rotor testing ctgs users group meeting las vegas november 2015 izzy. Recommended practice for insulation testing 2300 v and above with high direct voltage.
Ieee std 1122004 revision of ieee std 1121996 112tm ieee standard test procedure for polyphase induction motors and generators 3 park avenue, new york, ny 100165997, usa ieee power engineering society sponsored by the electric machinery committee 4 november 2004 print. The vlf very low frequency hipot test is performed at 0. This revision is ieee std 432000, the ieee recommended practice for testing insulation resistance of rotating machinery. Pulsating current, measured with an analog current probe, is an indicator of rotor bar problems. Megger mit5155251025 5kv10kv insulation resistance. 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. A standard ir test could be used to accomplish the dc test.
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