Our 12-Hour Electric Motor Testing Training live online instructor-led course introduces students to the basics of on-line and off-line motor testing techniques. Implementing a predictive maintenance program takes a … Testing Electric Motor With Multimeter Pdf. To have an efficient electric motor running means more than just adequate performance; energy efficiency, operating cost, life span, and system reliability are all interconnected with overall motor health. <> Check the motor frame (earth) from phase to phase (U to E, V to E, W to E). The AC hi-pot, often referred to as a ‘flash test’ is used most commonly by motor manufacturers* to test newly wound motors, and by motor rewinders to test newly rewound motors. %%EOF This paper aims to represent routine test performing in three phase induction motor. How To Check An Electric Motor 12 Steps With Pictures Wikihow The purpose of this manual is to provide direction and to the greatest extent possible, to assure a safe work environment for all electrical employees. GUIDE FOR THE USE OF ELECTRIC MOTOR TESTING METHODS BASED ON IEC 60034-2-1 P LL determined from residual loss (8.2.2.5.1 in Table 2) May 2011 Version 1.1 Document developed as part of the Electric Motor Systems Annex (EMSA) Task C – Testing Centres under the IEA Implementing Agreement for a Co-operating Programme on �Ô�a\OP���QE� ��(�b011�T�������Xx��B�,9P����0ϩ��́R'GN����'۹~46(8,6�� �ħ/_�g ��=@�����1/Ì�k�h `�k部c�0 4��6 endstream endobj startxref Electric motors fail. Adjust dc source until rated current flows Formulas For wye connected stator dc For delta connected stator dc dc I V R 2 R R dc 1 R 1 1.5 R dc Lesson 15_et332b.pptx 4 Finding Induction Motor Parameters Locked rotor test - finds the rotor parameters (R 2, x 2) and stator reactance (x 1) . One of the tips should touch the motor's case while the other touches one of the exposed wire leads. Electric Motor and Drive-train (Electric Mobility) Testing is a critical part of bringing any electric drive-train into production. With EMT, this means a thorough understanding of the equipment to be used, including test capabilities, diagnostic strengths and weaknesses, and in-depth knowledge of the equipment to be tested. %PDF-1.5 Verify operation of machine space heater, if applicable. Your tester will have two wires with lead tips. 4 as the no-load power factor is very small (typically in the range 0,1 – 0,15). September 18, 2020 by masuzi. That is a certainty. Set the voltage level of the insulation resistance tester to 500V. {�,�Do2ϖ=�L�]�tfڜc�O.y�ñ����]�0�{���C�"�'�(��y����^��E8�FB~��9,b�+�!�WGaU��(��eiu��mm�ϳ ** Read the entire procedure prior to testing ** TESTING THE STEP: 1. Induction motor is one of the most important motor used in industrial applications. Our course teaches students the leading cause of motor failure. h��W]S�8��zܝ�Z��L��$H-�)�Kypb��8vj;��{$ى��ٝ}�H���{Ͻ:'���m��. CLF-SAF-SOP-008 Isolation, Lock-Out, Tag-Out Procedure CLF-SAF-SOP-009 Live Work, Fault Finding and Testing Procedure CLF-SAF-SOP-010 Working in Vicinity of Overhead Lines or Underground Cables Procedure CLF-SAF-SOP-011 Certificate of Electrical Safety Compliance Procedure The temperature rise should not be bo more than specified value in the induction motor testing procedure or motor datasheet. 's MOTOR REWINDING PROCEDURE PDF looks good? The induction motor shall run at the rated voltage and frequency, and each bearing temperature is measured periodically. every electric wire in your plant – whether it’s in a motor, generator, cable, switch, transformer, etc. – is carefully covered with some form of electrical insulation. Share MOTOR REWINDING PROCEDURE PDF online. Electric motor testing. endobj Reliability testing of electric motors Abstract: Several motor failure mechanisms and test methods to determine whether a motor is suitable for extended service are discussed. endobj %���� DC motor fault zone analysis is a vital part of any DC motor maintenance program. %PDF-1.6 %���� h�bbd``b`�$�@�? 3. endstream endobj 124 0 obj <> endobj 125 0 obj <> endobj 126 0 obj <>stream A comprehensive knowledge of motor opera… 144 0 obj <>/Filter/FlateDecode/ID[<12F1DB51167B5C57578F29CC4EC5F883><5B9A5DA7F73E4A4AB2A06BB9C494FA77>]/Index[123 38]/Info 122 0 R/Length 100/Prev 915695/Root 124 0 R/Size 161/Type/XRef/W[1 2 1]>>stream Testing of Induction Motor October 27, 2020 February 24, 2012 by Electrical4U Demand of energy is growing day by day and along with it cost of energy rising abruptly, so now it is necessary that the health of large motors which consumes maximum power should be taken care off. Application and limitations of these test procedures are described. endobj x��XKo�8������i�)iQHl��"n������L���V+)E��w��R�6U#�"��y~�`�e�Zfy �ލ/�:˿�����.`�����L+�1�A���Y ���p~��q���:?K�01�N� �;���-�� ���4�M���Z|? [10] Individual tests (Megohm, PI, Step Voltage, and Surge) may be performed at the discretion of the Component Engineer or designee. Naturally, the bearing temperature will increase by passing the time. To keep these variables in check, regular motor testing and monitoring are critical. stream Testing Manual for Electrical Equipment Nahed Al-Hajeri 1and Anantha Madhavan 2 Abstract Quality Assurance (QA) refers to a program for the systematic monitoring and evaluation of the various aspects of a project, service, or facility to ensure that standards of quality are being met. For a three-phase motor, the isolation resistance can usually be measured between each motor winding or phase and between each motor stage and motor frame (earth) by an insulation tester or Megger 4. Electric motors have had a reputation for being a mix of science and magic. ?, As noted, this NOPR also addresses the test procedure for electric motors in response to a petition for rulemaking. 3. 2 0 obj In this paper the requirements for an electric drive-train test cell are discussed. 6 . Looking for MOTOR REWINDING PROCEDURE PDF? }�\��}S����rI[��(����\�W4�Fcѻ�˷�/b$�Lq�U{��E�^��"�����+ The wire itself is usually copper or aluminum, which is known to be a good conductor of the electric current that powers your equipment. So when a motor fails to operate it may not be obvious what the problem is. <> Even basic diagnostic testing can allow for major cost and time savings, reducing […] The current electric motor test procedure is at subpart B of 10 CFR part 431. IEEE Standard Test Procedure for Polyphase Induction Motors and Generators 3 Park Avenue, New York, NY 10016-5997, USA IEEE Power Engineering Society Sponsored by the Electric Machinery Committee 4 November 2004 Print: SH95211 PDF: SS95211 Authorized licensed use limited to: Iowa State University. �,*�*�3���q=W&8�����R`p�8���3. testing are commonly used within motor testing routines. 3 0 obj Check C to E, S to E, R to E. Minimum test value for a good electric motor is at least 1MΩ Running Amps Test With the motor running, check the full load amps (FLA) with a suitable meter or preferably a clamp on meter and compare with the motor name plate FLA. Deviations from rated FLA could signify problems with the motor under test. Check 213 flipbooks from . How to check an electric motor 12 pdf paul marshall how to test electric how to check an electric motor 12 how to test single phase motor windings. If both tests result in 0 ohms, the motor does not have any major problems and can still be used. �� $�' � !� �j�+,u V>�8".�{��?�Psq� �V�� �)$�4���,Fʉ�� � ,:M three. 8j�'�3t&��%؞3$��0�ObHT�b�I`�d�e`:ΐ������CG�����w���h [������69�� O�Z���$�@w�>F�Q�rk�'��[����⬘�C/w���#�-��:Rt3�@��a%�n`�@`&� [11] DC step voltage testing should not be performed on medium voltage motors if the off-line testing is being performed from the switchgear and it is known or 4 0 obj Testing can be conducted without inter-rupting the normal operation of the motor, and in fact should be performed when the motor … The goal here is to describe the testing at a level above the physical attributes, such as temperature, pressure, force, and so on, but below the level of a final assembly inside of which the electric motor resides. The implementations of such test cells are described, and examples of test results are provided. 1.0 Motor record sheet (for pre-commissioning inspection only) h 2.0 Inspection of the switchgear motor supply unit completed: h Sheet No. Read the results on the tester, then repeat the same procedure with the other exposed wire lead. <>/XObject<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 595.32 841.92] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> 2. DOE is not proposing any changes to the scope of applicability of the electric motor test procedure. ELECTRICAL and MOTOR MACHINE 6-1 ELECTRICAL and MOTOR MACHINE SHOP SAFETY PROCEDURES This section has been formulated to set guidelines for all electrical work performed by this department. As with any endeavor, the key to success is knowledge of the task to be performed. How to test an electric motor capacitor: this article gives a description of electric motor capacitor test procedures to determine if a capcitor is damaged or working normally & test procedures to measure the capactor's capacitance or microfarads, MFD, or uF to determine if it is working within its rated capacitance range. Scope of the Electric Motor Test Procedure. Read MOTOR REWINDING PROCEDURE PDF from here. Offline Motor Electrical Testing 5.1 cont. Obtain a 4-way pigtail connector (part #909306000) from Kwikee . 1 rule at 74 FR 32059 (July 7, 2009), and further updated test procedures for electric motors and ... of DOE’s existing electric motor test procedure in 10 CFR part 431 to the wider scope of The terms in this testing procedure are defined as follows: 3.1 "Power system" : Electric circuits including those described in 3.1.1 to 3.1.6: 3.1.1 Traction motor, its accessory wire harness, connectors, etc. 123 0 obj <> endobj Apply dc voltage to stator 2.) Induction machines are considered relatively reliable and robust due to their simple design and well-developed manufacturing technology. 1 0 obj 160 0 obj <>stream <>>> Equipment capability information is usually provided by the motor tester manufacturer through initial training. Disconnect 4-way connector on underside of step and connect the stephalf of the - connector to the four-way connector pigtail. This value can be estimated using the procedure described in Fig. Electric Motor Testing Methods Based on IEC 60034-2-1:2007. 07/01/2011 by Lemau 15 Comments. The ��t But smart companies understands is that what this means for maintenance programs is billions of dollars of lost revenue through increased motor repair costs, downtime, and waste in industrial and commercial companies. Procedure: 1.) This region is bounded by murky lines, but staying at this level enables tangible comments. Electric Motor Testing is usuallly the first thing to be sacrificed when cutting back on operational expenses. By May 2011, there were nearly 60 members of the Testing Centres Network from 28 different countries, including members from several African countries. Motor Current Signature Analysis (MCSA) is a proven and ac-cepted method for determining the condition of a motor’s current carrying components. Home / Technical Articles / Testing and commissioning procedure for electric motors Scope Of Motor Testing It should be noted that the scope of motor testing depends upon the motor type and size , this being indicated on the inspection forms. ** Perform vibration test. 0 Knowing some basic methods and techniques along with having a few test instruments handy helps detect and diagnose problems with ease. h�b```f``J``e``?� € ",@Q� �$��, DOE finalized key provisions related to small electric motor testing in a 2009 final . Test motor starter. Inspect the step for visible damage that might restrict step operation. The types of motor testing centres run by members include independent laboratories, university/academic laboratories and manufacturer/ Electric motor performance testing and reliability assessment Part 1. eˈ +Hh�:a!���g��"���^�g� �Y��F�SQ�Q����a�1!�DZ����C�y�yčwY�@�B\�=�(����[��|=M� ���I����?����)���w{�MJ[�9}�_O��N!����U�[?��>��{��$�a~���Y:������� ���N#!LbƓV��'5 ����S3$Z���BJ$��#m�z��E���4�*aIԧu%��{:"*�]W�@_� {��_����<8�2Z�F��A!\�G����1=8�L�]=p��;��� ����Ԧܬ(�[�g��i��@i*Z���lmS`M_�ݰ�#�ɋz�)�ܰ�U6W^��=a@��(bI��i0. Visual inspec-tion and electrical testing of the armature and fields give the maintenance personnel an under-standing of the condition of the motor. :�� @�3���f:��,. Perform resistance tests on resistance temperature detector (RTD) circuits. 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