Improper motor storage will result in seriously reduced reliability and failure. Long term storage procedure large ac motors storage storage requirements for motors that will not be placed in service for at least six months from date of shipment. Department of energys office of industrial technologies oit with input from trade associations, consulting companies, manufacturers, nonprofit corporations, and others. Minimum fullload efficiency standards for energyefficient and premium. Task of the iea 4e electric motor systems annex emsa. Alarm sensors located within electric motordriven fire pump controllers that cannot be accessed without opening an energized electric motordriven fire pump controller shall be tested at an alternative location outside of the controller. How to test three phase ac motors learning electrical. Motor fai 1 ures electric motors have been in service for over eighty years, and the reasons for motor failures have been extensively studied by desi. The current load estimation method is recommended when only amperage. The possibility of carrying out routine testing and type tests for all motor makes at our test facility including electric motors that were not purchased from menzel will make you more flexible in. Electrical and motor machine shop safety procedures.
The measuring procedure the measuring procedure has been based on the unece regulations 101 and within the scope requiring it to be detailed according to en 18211. To obtain on load current and its power factor angle. Determining electric motor load and efficiency department of energy. Electric motor efficiency under variable frequencies and loads pdf r06004. Test results of motor starter equipment shall be in accordance with.
Introduction this manual provides information on how to safely install, couple to the driven equipment, and maintain the toshiba squirrel cage mediumvoltage induction motor. Fire pump testing tbp47 1011 weekly operational tests the your business insurance specialists state auto group risk control services this bulletin covers the basic procedure for weekly performance testing of both electric motor and diesel. A published iec standard can be purchased in hardcopy and pdf from. The data correspond to specific requirements of the federal motor vehicle safety standards fmvss. The possibility of carrying out routine testing and type tests for all motor makes at our test facility including electric motors that were not purchased from menzel will make you more flexible in the future. Test results of surge protection devices shall be in accordance with procedures for testing of lv surge arresters. Use the pdf linked in the document sidebar for the official electronic format. This battery test procedure manual was prepared for the united states department of energy doe.
Fire pump testing tbp47 1011 weekly operational tests the your business insurance specialists state auto group risk control services this bulletin covers the basic procedure for weekly performance testing of both electric motor and diesel enginedriven fire pumps. When an electric motor fails to start, runs intermittently, runs hot, or continually trips its overcurrent device, there my be a variety of causes. There are a lot of tests for electric motors, many dependent on the size of the motor. Visual inspection and electrical testing of the armature and fields give the maintenance personnel an understanding of the condition of the motor. This guide provides a general overview of the regulatory framework and approval process and explores the specific manufacturing responsibilities and test procedures associated with electrical safety testing. Reliability life testing and evaluation of 3phase motors. Ieee standards documents are developed within the ieee societies and the standards coordinating. Knowledge of the basics together with powerful new test equipment vastly simplifies the job. Toshiba motor control is designed and built in accordance with the latest applicable provisions of nema and the national electrical code.
Pdf the aim of this paper is to present the station for electrical motor testing with its potentials. This may cause severe problem to the load and entire system. Motors are susceptible to the gradual failure of their insulation resistance. This document has been published in the federal register.
For instance, pretty much no one tests a 100hp or smaller motor on a dynamometer unless its a very, very special motor. Modular construction to suit the clients test requirements and budget. It also describes most other common polyphase motor tests. This study guide assumes the reader has a firm understanding about acdc electricity. Improving motor and drive system performance department of. Electric motor repair, model repair specifications for low voltage motors, and motor repair tech brief were produced by the u. Electrical safety testing reference guide iso 9001 certified. Routine test of three phase induction motor vishant naik1, saurabh k singh2, sahil chawhan3.
Induction motor testing and evaluation summary as energy costs rise, more emphasis is being placed on determining the health of large inductive motors. Testing of the electric vehicle in driving cycles fig. Task c testing centres began in early 2009, led by australia with participation from switzerland and denmark. Types of electric motor testing unlike vfds, electric motors have several widely accepted types of testing. Electric motor testing methods based on iec 6003421. Ieee std 1122004, ieee standard test procedure for. A motor placed in storage may or may not work, regardless of its physical appearance. Motor current monitoring and analysis mcsa is a straight forward tool to diagnosing problems with large inductive motors. Rules for classification and construction vi additional. The paper also describes a detailed procedure of design, construction and. Power tests electric motor test systems give you the ability to verify the quality of your electric motors in a controlled, costsaving, environment. Whitelegg manufacture a large range of ac only or ac and dc test panels for electric motors. Electric vehicle battery test procedures manual revision 2.
Threephase dualvoltage motor insulation resistance testing. It is most commonly used in industrial installations with multiphase power supplies. When a motor fails, it is often difficult to see why it failed just by looking at it. Unlike vfds, electric motors have several widely accepted types of testing. All steps are now treated the same as in the fuds test. Jul 01, 2015 basic motor testing with multimeters and ammeters july 1, 2015 by david herres 12 comments when an electric motor fails to start, runs intermittently, runs hot, or continually trips its overcurrent device, there my be a variety of causes. The speed of an ac motor depends on the frequency of the input power and the number of poles for which the motor is wound. Electricdiesel fire pump check list march 2014 3 the heat exchanger piping for a diesel engine driver is equipped with an indicating manual shutoff valve, an approved flushingtype strainer, a pressure regulator, an automatic valve listed for fire protection service, and a second indicating manual shutoff valve. Can be combined with a dynamometer for load testing of motors. The wire itself is usually copper or aluminum, which is known to be a good conductor of the electric current that powers your equipment. Nissan leaf and tesla roadster were testing using sae j1634 procedure concepts. This document assumes that suppliersvendors sv have been prequalified by a. Horizontal squirrel cage mediumvoltage induction motor.
Iec 6003421 is a welcome development and it is hoped that this guidance document can help inform the redrafting process. 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. The purpose of this manual is to provide direction and to the greatest extent possible, to assure a safe work. The institute of electrical and electronics engineers, inc. Testing should be performed according to the latest revision of ieee 43. Motor testing includes in process testing, and the tests may be witnessed or. The term nrtl now applies to many laboratories operating under osha occupational safety and health.
Sometimes the trouble lies within the power supply, including branch circuit conductors or motor controller. Electric motors have had a reputation for being a mix of science and magic. Installations must comply with all applicable state and local codes, adhere to all applicable national electric code nfpa 70 standards and instructions provided in this manual. 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. Designed to run the motor after rewind or servicing.
Test procedure for small electric motors see also eere2017btstd0048 docket rin 1904ae18 public comments. Electric motor testing deenergizedoffline motor circuit. Measurement procedure 21 dielectric absorption 21 charging current 21 leakage current 21 leakage current test 22 what is a safe level of leakage. These motors run conveyor belts, pumps, fans, and many other applications. Isbn 07389785 ss95211 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. Testing and commissioning procedure for electric motors eep. For example, the various techniques to measure stray load losses used. Before performing any motor maintenance procedure, be sure that the equipment connected to the motor shaft cannot cause shaft rotation. Neta developed specifications for the acceptance of new electrical apparatus prior to energization and for the maintenance of existing apparatus to determine its suitability to remain in service. So when a motor fails to operate it may not be obvious what the problem is. Most electric motors are designed to run at 50% to 100% of rated load. Reliability life testing and evaluation of 3phase motors s. Verify tightness of accessible bolted electrical connections by calibrated torquewrench.
Christopherson june 2015 idaho national laboratory idaho falls, idaho 83415. Using the megger to test a threephase motor is rather easy, though the safety hazards for this procedure are quite high. Standard format for iec standards electric motor systems. The complete guide to electrical insulation testing. Guide for the use of electric motor testing methods based on iec 6003421 p ll determined from residual loss 8. Motor current monitoring and analysis mcsa is a straight forward tool to diagnosing problems with. Hev, phev, ev test standard development and validation. The historical need for test procedure improvements is largely due to the range of methods for determining motor efficiency. The primary objective of the energized electric motor testing class is to equip trainees with the knowledge and procedures needed to determine the condition of electric motors using deenergizedoffline motor testing tools and techniques. The ieee 112 standard is a test procedure that describes motor efficiency testing.
J1634 electric vehicle energy consumption and range test procedure cancelled oct 2002 jeff glodich mike. Electrical and motor machine 61 electrical and motor machine shop safety procedures this section has been formulated to set guidelines for all electrical work performed by this department. Written for professionals who work in electric motors, this covers updated traction applications, the latest on solidstate motordrive controllers, electrical and mechanical parameters, specifications, shapes, performance, protection, and more. Insulation resistance failure of an electric motor is one of the first signs that the motor is about to fail. Traction motor test set high power motor test systems systems. Motor fai 1 ures electric motors have been in service for over. An electric motor systems annex emsa was launched at the end of 2008 as part of the iea 4e implementing agreement and is made up of a number of tasks. Appliance testing 34 motor testing 34 transformer testing 35. When a threephase supply is given to the coils, then the. We have test systems available for testing fractional up to 50,000 hp motors. Ieee std 1122004, ieee standard test procedure for polyphase. In the running configuration, the windings are joined with metal jumpers. Traction motor test set high power motor test systems.
With the motor at normal operating temperature, the vibration velocity shall not exceed 2. Electrical equipment should be installed, operated, serviced, and maintained only by qualified personnel. Model repair specifications for low voltage induction motors. Implementing a predictive maintenance program takes a pm program to the next level. Electric wiring including control wiring, emergency supply been checked by electrical contractor. Start motor 3 times from manual source and run for 5 minutes minimum from main source of power. No responsibility is assumed by schneider electric for any consequences arising out of the use of this material. Jul 06, 2016 testing electric motors doesnt have to be a mystery. Standard for acceptance testing specifications for. For the earliest detection of insulation breakdown, partial discharge provides another level of high accuracy electric motor analysis over and above that achieved by the standard surge test. Throughout germany, only a few groupindependent providers offer test services of this kind.
Dc motor fault zone analysis is a vital part of any dc motor maintenance program. Electricdiesel fire pump check list north carolina. Ieee std 1122004 revision of ieee std 1121996 ieee standard test procedure for polyphase induction motors and generators sponsor electric. The partial discharge test has become more important to evaluate insulation in electric motors within the last few years. Dc motor analysis a leader in electric motor testing. The international electrical testing association neta was formed in 1972 to establish uniform testing procedures for electrical equipment and apparatus. If the load can cause shaft rotation, disconnect the load from the motor.
This document contains proprietary information of general electric company, usa and is furnished to its customer solely to assist that customer in the installation, testing, operating andor maintenance of the equipment described. On july 31, 2017, doe published a request for information the july 2017 rfi initiating a data collection process to consider whether to amend does test procedure for small electric motors and electric motors, and whether new test procedures are needed for motors beyond those subject to the existing federal test procedures. Recommendations for motor testing for nema motors 500 hp, every manufacturer will. Threephase dualvoltage motor insulation resistance testing threephase dualvoltage motors are used for most daytoday operations in todays industrial plants. Electric motor test systems power test dynamometer. Online information the information contained in this guide is likely to be. Rpm insulation systems evaluation and maintenance guidelines.
Worldwide system for conformity testing and certification of. For a three phase motor, insulation resistance is usually measured between each motor winding or phase and between each motor phase and motor frame earth using an insulation tester or megger. The windings are marked with tags u1 and u2, v1 and v2, w1 and w2. Primary injection test procedure for powerpact dframe and ns 400 and 600 a motor circuit protectors retain for future use. If the torque and speed of the electric motor cannot be monitored, the current intoout. Test specification coastdown testing coastdown coastdown motor vehicle coastdown force f.
Motor circuit breakers manual motor protectors motor protection circuit breakers validity note this document applies to tesys gv4pem devices and tesys gv4pb devices. Guide for source inspection and quality surveillance of. It can give an accurate reading of the measure of resistance and continuity available in a highvoltage circuit and electrical motor. Why is a standard energy efficiency format needed for iec standards. Inspection and test procedures for rotating machinery. Rtd circuits shall be in accordance with system design intent and machine protection device.