Ieee std 43-2000 pdf

The ieee std 432000 lists the following minimum values for the polarization index for ac and dc rotating machines. 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 ieee recommended practice for testing insulation resistance of with the release of ieee std 432000, new limitations on the use and evaluation of pi. 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. Recommended practice for insulation testing 2300 v and above with high direct voltage.

Pdf ieee std 432000r2006 ieee recommended practice for. Electric power engineering consulting and training rotor testing ctgs users group meeting las vegas november 2015 izzy. Ieee recommended practice for testing insulation resistance of. The ieee std 43 2000 lists the following minimum values for the polarization index for ac and dc rotating machines. 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. Megger a guide to insulation testing above 1 kv datasheet pdf. Pulsating current, measured with an analog current probe, is an indicator of rotor bar problems. Experience with stator insulation testing iris power. The ieee recommended practice for testing insulation resistance of rotating machinery, std 432000, emphasizes the need for upgrading current. Measurement is trended and values to ground increasing over time indicate surface. Ieee xplore 43 2000 ieee recommended practice for testing insulation resistance of rotating machinery ieee standard. 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. A standard ir test could be used to accomplish the dc test. The ieee disclaims any responsibility or liability resulting from the placement and use in the described matter.

It applies to synchronous machines, induction machines, dc machines, and synchronous condensers. The quotient of the insulation resistance at time t2 divided by the insulation resistance at time t1. Other ieee standards that include information on insulation resistance measurement are listed in clause 2. A guide to diagnostic insulation testing above 1 kv. For instance, most new insulation systems start with test results in the gigohm and terraohm billions and trillions of ohms. Ieee recommended practice for testing insulation resistance of rotating machinery. The purpose of insulation resistance ir reading is to evaluate the condition. Ieee std 11101991 1110 tm eee standards ieee standards. 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. In march 2000, the ieee sa standards board approved a revision to ieee std 431974. Measured by rtd, thermocouple or bulbtype thermometer. Ieee std 1122004, ieee standard test procedure for polyphase. Rotating machines, and other recognized organizations.

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. Temperature limits vary but generally fall in the range of 90100c for alarm and 105120c for shutdown. After the test is done, a lot of information is available in the form of parameters, all of them giving an. This document describes the recommended procedure for. In this standard, information necessary to permit an effective evaluation of the insulation systems of medium and small rotating electric machines is presented. Othere ieee standards that include information on insulation. A29a29m99e1 standard specification for steel bars, carbon and alloy, hotwrought and coldfinished, general requirements for. Motors and drives testing the insulation resistance of rotating. 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. Ieee is the worlds largest technical professional organization dedicated to advancing technology for the benefit of humanity. No longer is the test easy and straightforward as many changes have occurred with the insulation systems themselves.

Explain how the ieee 432000 standard correlates to the mce tester. At a, the effect of aging and dust accumulation is shown by decreasing values. Explain how the ieee 43 2000 standard correlates to the mce tester. Ieee recommended practice for testing insulation resistance of rotating machinery chicago. Ieee recommended practice for testing insulation resistance.

This article will discuss each of the changes referencing directly to ieee std. Ieee std 432000 revision of ieee std 431974 ieee recommended practice for testing insulation resistance. 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. Penrose is the general manager for the alltest pro division of bjm corp. 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. Ieee 432000 claims that before any insulation testing can take place, safety24 mar 2000 pdf. 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. The purpose of this recommended practice is to a define insulation resistance and polarization index testing of the winding of a rotating machine. 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. Whats new in the ieee 43 insulation resistance testing standard. Ieee recommended practice for testing insulation resistance of electric.

Testing solid insulation of electrical equipment, december 1991. This revision is ieee std 432000, the ieee recommended practice for testing insulation resistance of rotating machinery. Ieee std 432000, ieee recommended practice for testing insulation resistance of. Ieee std 432000 revision of ieee std 431974 ieee recommended practice for testing insulation resistance of. Ieee std 432000 revision of ieee std 431974 ieee recommended practice for testing insulation resistance of rotating machinery sponsor electric. It does not apply to fractional horsepower machines. It applies to synchronous machines, induction machines, dc machines, and. 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. Ieee std 10152006 blue recommended practice for applying lowvoltage circuit breakers used in industrial and commercial power systems. Recommended practice for testing insulation resistance of rotating machinery. This document describes the recommended procedure for measuring insulation resis. Timeresistance testing method this method is fairly independent of temperature and often.

Ieee guide for insulation maintenance for rotating. The vlf very low frequency hipot test is performed at 0. In particular, it identifies the complexities of performing pi and ir tests and notes their limitations. 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. Ieee guide for insulation maintenance for rotating electric machinery 5 hp to less than 10 000 hp abstract. 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. Segundos mohms 5 2618 10 4077 15 4911 20 5069 25 5712. 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. With the release of ieee std 432000, new limitations on the use and evaluation of pi were issued. In particular, this standard describes typical insulation problems. 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.

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. Contained within this document is the general theory of insulation resistance ir and polarization index p. The guide is intended to apply in general to industrial aircooled machines. Understanding insulation resistance testing pdf 0206 rev. The first change in the new document is a slight change in the title. Paul, electrical power equipment maintenance and testing. With the release of ieee std 43 2000, new limitations on the use and evaluation of pi were issued.

Pdf measurement variations of insulation resistance. Tm 5694 commissioning of electrical systems for command. In march 2000, the ieeesa standards board approved a revision to ieee std 431974. Testing the insulation resistance of rotating machinery. Pdf ieee std 432000r2006 ieee recommended practice. Megger mit5155251025 5kv10kv insulation resistance. Electric power engineering consulting and training rotor testing ctgs users group meeting las vegas november 2015 izzy kerszenbaum. Ieee 43 2000 claims that before any insulation testing can take place, safety24 mar 2000 pdf.