This guide, outlined a complete maintenance program for various electric motors based on size and bearing type. Reactive maintenance to repair and replace the motor when a failure occurs. Preventive maintenance of electric motor electrical2z. High voltage and rotating parts can cause serious or fatal injuries. This article will address some of the more common activities. Since moisture can be very detrimental to electrical components, the motor temperature should be. Pdf predictive maintenance by electrical signature. Best practices and preventative maintenance bearings and.
An electric motor that is well cared for will last for years and provide you with ongoing reliability. Preventive maintenance for gas and process turbomachinery. Installation, operation and maintenance instructions for ac induction motors 56 6800 frames nema. Without a reliable source of electrical power, operations of any facility would not be possible. Electrical inspection checklists this pdf contains 77 electrical inspection checklists taken from the 2014 electrical inspection manual with checklists. Moderate radial load capacity moderate thrust load capacity up to 312 bore high speed range up to 12,000 rpm on grip tight adapter with labyrinth seal ball and socket insert design. The very first thing that you should do before starting any type of maintenance on a motor is a visual inspection, a lot of times the trouble can be found just by looking, because if the problem is that bad then it should be very obvious by observation.
Preventative motor maintenance pm is a calendar or timebased planned or schedulebased maintenance program where actions are. There are two main types of maintenance of transformer. Simple steps to electric motor maintenance r baker. Hanover risk solutions standard for an electrical preventive. Standard for an electrical preventive maintenance epm program recommended maintenance practices for electrical distribution system equipment electrical equipment failures account for millions of dollars in damage and lost business every year. Gearbox oil can be a key indicator of gearbox health and can prolong gearbox life span, so try these quick tips below. Simple steps to electric motor maintenance r baker electrical ltd. Preventive maintenance for gas and process atlas copco. For the twmc motor warranty to be and to remain in effect, the motor must be installed and operated in strict accordance with the outline drawing, motor nameplates and these instructions and must not be altered or modified in any unauthorized manner. The boma international preventive maintenance guidebook. Electric motor predictive and preventive maintenance guide abstract electric motor performance is vital to the reliable and efficient operation of power plants. These schedules should be tracked on a computer based program or minimally retain the records on index cards or other written medium. Electrical distribution and control systems are the heart of any facility, yet it is often the most underappreciated utility. A power transformer requires various routine maintenance.
Understanding the basic visual, mechanical and electrical maintenance techniques will help you in this quest to keep large electric motors on line and producing. Predictive maintenance to ensure that the right kind of maintenance is carried out at the right time. As this countrys electrical infrastructure continues to age, this problem is only going. Fist 41b, maintenance scheduling for electrical equipment 5c. In modern plant operations, unscheduled stoppage of production or long repair shutdowns are intolerable. Squirrel cage induction motor requires significantly less maintenance as it does not contain brushes, commutators, slip rings. Aug 31, 2018 in this episode we look more closely at the predictive maintenance strategy, and how it allows maintenance resources to be deployed more efficiently, which in turn improves performance and extends. Including the motors in the maintenance schedule for the driven machine or general plant equipment is usually sufficient.
A preventive maintenance checklist for electrical distribution systems in commercial buildings. This article explains how preventive maintenance can provide time and money savings for facilities that use heavy duty motors and industrial motor control products. As such it is desirable to perform various preventative maintenance activities to ensure the transformer maintains a high level of performance and a long functional life. Preventive maintenance of induction motor electrical mastar. For the twmc motor warranty to be and to remain in. Nameplates, declaration of conformity and other collateral material may contain the. Predictive maintenance through electrical testing and. Part of this maintenance program offered guidance on regreasing motor bearings. They have a number of other benefits when properly maintained. However, equipment failure can be delayed through appropriate electrical preventive maintenance. Crosby electric is central alabamas exclusive provider of tegg electrical preventive maintenance. Gearbox maintenance tips preventative maintenance tips in order to prevent the need for any costly repairs or downtime, the first and most important part of any maintenance plan is fixing problems before they happen. You can do this by collecting case histories of motor breakdowns and the cost of resultant lost production. Preventive and predictive maintenance 700zb00102 42 preventive predictive maintenance the guiding principle of ppm is the regular and systematic application of engineering knowledge and maintenance attention to equipment and facilities to ensure their proper functionality and to reduce their rate of deterioration.
How to select the right maintenance strategy for electric motors proper maintenance maximizes the availability of the machine, reduces the risk of breakdowns, and protects your investment by. Search weginstallationoperationandmaintenanceofthreephaseeletricmotorsforexplosiveatmospheres50000703manualenglish. Pdf predictive maintenance by electrical signature analysis to. Typical causes of electric motor winding failures and how to. So the main idea behind motor maintenance is to prevent breakdown rather than repairs them. Italian, russian, english, dutch, simplified chinese, german, french, spanish, brazilian portuguese size. Systematic and periodic inspections of motors are necessary to ensure best operating results. Since moisture can be very detrimental to electrical components, the motor. The high cost of the resultant downtime eats deeply into profits. Regular motor maintenance to avoid failure electrical. Electric motors 36 check for damage caused by dirt, loose parts or foreign objects. Chapter 9 electrical system maintenance general all electrical systems require periodic maintenance in addition to nonscheduled maintenance caused by unpredictable events such as storms, accidents, and equipment failure.
Using this data, you can create a custom maintenance schedule based on selected operations. They begin life with all of the other new parts when the vehicle is assembled. Electrical equipment deterioration is normal and equipment failure is inevitable. The checklists are in pdf format and can be completed electronically or printed and used as hard copy. Ensure that all moving parts are properly secured and. Build trust and loyalty as an oemknowledgeable consultant to your customers and increase revenue per customer visit. A well designed motor maintenance program, when correctly used, can be summed up as preventive, predictive and reactive.
The checklists are intended to help inspectors keep track of the numerous aspects of an electrical installation. Read pdf motor maintenance manual slip ring induction motor slip ring compartment. Electric motors for explosive atmospheres instructions manual for installation, operation and maintenance of electric motors date. The ideal motor maintenance program aims at preventing breakdowns rather than repairing them. The manufacturer of these products, baldor electric company, became abb motors and mechanical inc. Preventative maintenance checklist for an electric motor shop. The frequency of routine service varies widely between applications. Operate switch manually several times to ensure proper operation, and then by motor if poweroperated. This pdf contains 77 electrical inspection checklists taken from the 2014 electrical inspection manual with checklists. In 1992, epris nuclear maintenance application center developed an electric motor predictive and preventive maintenance guide.
As the demands on inhouse manpower increase, do more with less mentality, we are finding pumps and motors failing at alarming rates. Standard for an electrical preventive maintenance epm program page 410 connections. Pump and motor preventative maintenance program thank you for this opportunity to provide your facility with a proactive preventative maintenance program. Installation, operation and maintenance instructions for ac induction motors 56 6800 frames nema 63 280 frames iec marathon electric contact motor customer service at. Industrial motor control, preventive maintenance tips. Predictive maintenance by electrical signature analysis to induction motors 505 in which taps was inserted to the gradual introduction of imbalance in power depending on the insertion of short. B generator and large motor preventive maintenance. Five tips for better electric motor maintenance it is essential to perform preventive maintenance pm checks on electric motors as a part of managing facility assets because they have a massive impact on a business productivity and profit. Predictive maintenance by electrical signature analysis to. In a good preventive maintenance program with detailed checks, the person in charge should have a record card on file for every motor in the plant. Predictive maintenance by electrical signature analysis to induction motors 491 interesting and little explored field surfaces, which is the introduction of predictive maintenance techniques based on electrical signature analysis.
We can add this service to our onsite visit or plan a scheduled maintenance call at a time that makes sense for your production schedule. Maintenance manual chapter 9 electrical system maintenance. Here electricians can get the articles from generation of electricity to installation. Since here we are talking about maintenance of induction motor, and it is of two types. A wellplanned electric motor preventive maintenance programme is the key to dependable, longlife operation of electric motors. Remove any corrosion on battery terminals with bicarbonate of soda. Electrical preventative maintenance pages electric. Electric motor preventive maintenance checklist pdf. By logging in to fe membership, you can download memberonly technical documents, sample programs and more from the fe library for free. The weg electric motor installation and maintenance manual provides the necessary information to properly install, maintain and preserve the most important component of all equipment. Check electrical connections for evidence of looseness or overheating. Preventive maintenance the key to motor control center. Predictive maintenance test methods static and dynamic testing electric motor components causes of motor failures static electrical tests megohm, polarization index, hipot, surge static motor testing case studies static motor testing benefits dynamic electrical parameters connections.
Home technical articles regular motor maintenance to avoid failure and prolong its lifespan motor maintenance a well and carefully designed motor maintenance program, when correctly used, can be summed up as preventive maintenance, predictive maintenance and reactive maintenance. This paper presents current methods of electrical test and trend analysis of the operational health of electric motors in the context of successful predictive. Property damage andor physical injuries due to electrical. A well and carefully designed motor maintenance program, when correctly used, can be summed up as preventive maintenance, predictive maintenance and reactive maintenance. Preventive and predictive maintenance 700zb00102 42 preventive predictive maintenance the guiding principle of ppm is the regular and systematic application of engineering knowledge and maintenance attention to equipment and facilities to ensure their proper functionality and to. Department of energy estimates that approximately 63% of all electricity used in industry is for process motor system energy. We perform one group on a routine basis known as preventative maintenance, and the second group on an adhoc basis i. Pdf adding value through aftermarket services brochure 649. A general guide to dc motor maintenance ohio electric motors. Nov 17, 2019 a power transformer requires various routine maintenance tasks including measurement and testing of different parameters of the transformer.
No vehicle maintenance inspection would be complete without an inspection of the electrical system. The key to reliable operation of motors is having a checklist in place in the form of a preventive maintenance. Standard for an electrical preventive maintenance epm. Preventive maintenance the key to motor control center reliability the lowvoltage motor control center is a key element in electrical control systems because of the vital operating role they play in controlling motors and production processes. For the most part, we think of starters and alternators as limited life span electrical components, with little in the way of preventive maintenance requirements.
Preventive maintenance provides original equipment manufacturer oem maintenance schedules. Preventive measures can be taken, such as motor speed sensors centrifugal circuit breakers or voltage relays connected to tachymetric dynamos which cut off. Easa senior technical support specialist we often hear the terms preventive maintenance pm and predictive maintenance pdm of electric motors. Installation, operation and maintenance instructions. Preventive and predictive maintenance of electric motors.
The operation of an electric motor is typically simple and reliable, making it possible to overlook during daytoday maintenance practices. This manual must be kept for future reference during installation, operation and maintenance. A wellplanned preventive maintenance program is the key to dependable, longlife operation of motors and generators. Qualified personnel should perform installation, operation and maintenance of electrical. The intent of periodic maintenance is to keep the system operating at an acceptable level of service to the public. An electric motor requires careful maintenance and preventative measures to run efficiently. Osburn bureau of reclamation hydroelectric research and technical services group denver, colorado 5f. If you have any questions concerning any of the procedures, stop, and call the appropriate regalbeloit motor. Maintenance and troubleshooting of electric motors reliance electric posted 11005 motor maintenance scheduled routine care introduction the key to minimizing motor problems is scheduled routine inspection and service. Individual maintenance schedule records for boiler and pressure vessels, motors and engines, gear sets, electrical equipment and transformers are provided in this program. The failure of one or more critical motors could cause lost capacity and excessive repair and maintenance cost. Almost all electrical equipment requires planned inspection and maintenance being carrying out.
However, its far less often that we give consideration to the tasks associated with these methods of maintaining motor operation and extending operating service life. A power transformer is the most costly and essential equipment piece of equipment within an electrical substation. Electrical preventive maintenance epm program electrical related fires are a common occurrence. Electric motor predictive and preventive maintenance guide.
Proper maintenance and upkeep in dc motor units when cared for correctly, direct current dc drives, motors, and their controls can offer excellent reliability over a long service life. An electric motor operates in a simple and reliable manner, and this can sometimes lead to overlooking the daytoday maintenance. Preventive maintenance to prevent operating problems and make sure that the motor continuously provides reliable operation. 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. Maintenance and troubleshooting three phase induction motor. Maintenance of transformers a detailed checklist electrical4u. What is predictive maintenance on electric motors low power. However, existing maintenance recommendations proposed by. While it would probably be considered overkill to visually inspect every wire in every circuit in the vehicle, there are some quick checks that can be made to verify that everything electrical is up to snuff. The words preventive maintenance and starters and alternators are seldom included in the same sentence. Proper maintenance and upkeep in dc motor units when cared for correctly, direct current dc drives, motors, and their controls can offer excellent. Search weginstallationoperationandmaintenanceofthree. Qualified personnel should perform installation, operation and maintenance of electrical machinery. Free electrical preventive maintenance schedule template.
A wellplanned preventive maintenance program is the key to dependable, long life. A wellplanned preventive maintenance program is the key to dependable, longlife. Tegg is the world leader in preventive maintenance technology, currently providing this service in over 20 countries. Aug, 2017 the ideal motor maintenance program aims at preventing breakdowns rather than repairing them. Electric motor system diagnostics richard scott alltest pro, llc this session is eligible for. In plant operations or other similar workplace facilities, one thing thats desperately needed is a solid preventive maintenance plan. On stranded cable, if ends are corroded, cut off ends or separate strands and clean internally. While our preventive maintenance services are customized to meet each customers machine needs, some of the services performed during our preventive maintenance visit will include. Maintenance scheduling for electrical equipment bureau of. Maintenance and troubleshooting of electric motors esr motor. Regular motor maintenance to avoid failure and prolong. This ensures electrical equipment is kept in good working condition at all times.
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