• Home
  • Courses
  • Machines
    • Transformer
    • AC Motors
      • Induction Motor
      • Synchronous Motor
    • DC Motor
    • DC Generator
  • Power System
    • Circuit Breaker
    • Switchgear
    • Substation
    • Control System
    • Measurement
  • Electronics
  • Books
  • Blog
  • Forums
  • Contact
    • Contact Us
    • About
    • Privacy Policy
RegisterLogin
StudyElectrical.ComStudyElectrical.Com
  • Home
  • Courses
  • Machines
    • Transformer
    • AC Motors
      • Induction Motor
      • Synchronous Motor
    • DC Motor
    • DC Generator
  • Power System
    • Circuit Breaker
    • Switchgear
    • Substation
    • Control System
    • Measurement
  • Electronics
  • Books
  • Blog
  • Forums
  • Contact
    • Contact Us
    • About
    • Privacy Policy

DC Motor

  • Home
  • Blog
  • DC Motor
  • Electric Motor Maintenance : Preventive, Predictive and Reactive Maintenance

Electric Motor Maintenance : Preventive, Predictive and Reactive Maintenance

  • Categories DC Motor, DC Generator, Electric Vehicles, Single Phase Motors, Synchronous Motor, Three Phase Induction Motor
Electric motor maintenance

Electric Motors need maintenance regularly in order to avoid failure and prolong their lifespan. Generally, motors and motor parts should be maintained and tested at least every 6 months. 

Then only it is possible to maintain a motor’s life and efficiency. We are going to deal with three kinds of maintenance: 

  1. Preventive maintenance – to prevent operating problems and make sure that the motor continuously provides reliable operation.
  2. Predictive maintenance  – to ensure that the right kind of maintenance is carried out at the right time.
  3. Reactive maintenance –  to repair and replace the motor when a failure occurs.
Factors which affect the life span of the motor due to lack of maintenance is shown in the figure below,
Electric motor maintenance
Electric motor maintenance

Preventive Maintenance

Preventive maintenance is electric motor maintenance that is done on a regular basis and can help prevent motors to fail and thus, prevent unexpected production stops. Some of the most important elements included in preventive maintenance are.

  • Motor ventilation
  • Humidity and condensation
  • Loose connections
  • Voltage and current imbalance
  • Undervoltage and overvoltage
  • Bearings, Bearing life, Bearing lubrication
  • Lubrication type, Lubrication Intervals

Predictive Maintenance

The objective of predictive maintenance of electric motor maintenance is to reduce maintenance costs by detecting problems at an early stage and deal with them.

Observations of motor temperature, vibrations, etc. are only a few examples of data that can help predict when the motor needs to be repaired or replaced. Following are some of the tests that provide the necessary data about the state of the motor.
  • Bearing considerations
  • Insulation considerations
  • Ground insulation test
  • Cleaning and drying stator windings
  • Surge test
  • High potential testing – HIPOT
  • DC high potential ground test
  • AC high potential phase to ground test and phase-to-phase test
  • Motor temperature
  • Thermographic inspection

Reactive Maintenance

When motors fail, it is important to examine the motor and find out where in the motor it happened and why it happened. Normally, good preventive maintenance can prevent failure.

If the failure is caused by a weak component or inadequate maintenance, then all similar equipment has to be examined in order to prevent the same failure from occurring elsewhere in the motor or in the entire system.

  • Share:
author avatar

Previous post

Parallel Operation of DC Series Generator

Next post

Armature Reaction in Alternator

Leave A Reply Cancel reply

Your email address will not be published. Required fields are marked *

Login with your site account

Connect with

Login with Facebook Login with Google Login with LinkedIn

logo


Lost your password?

Not a member yet? Register now

Recent Articles

  • 7 FE Electrical and Computer Practice Problems with Solutions
  • Sinusoids and Phasors
  • 2 Important Distribution Transformer Testing Methods
  • What is welding cable? Where to buy cheap cable for my welding plant?
  • Facts Everyone Should Know About Trailer Wires
For Advertisements Contact
[email protected]

Copyright © 2020 Study Electrical, Inc.

© StudyElectrical.Com 2020

Connect with

Login with Facebook Login with Google Login with LinkedIn

logo

Login with your site account

Connect with

Login with Facebook Login with Google Login with LinkedIn

logo


Lost your password?

Not a member yet? Register now

Register a new account

Connect with

Login with Facebook Login with Google Login with LinkedIn

logo


Are you a member? Login now