I work in a Spinning Mills. We use to produce 100% export quality of yarn from cotton. In a spinning factory, you will find different types of machine-like Ring Frame, Simplex Roving Frame, Carding Machine, Drawing Framer and many more.
But the most important thing is that the entire machine has at list one motor. If I include a humidity plant or AC Plant then it will be a huge number of motor you can find in spinning mills. So it’s important to check all the motor every day and if there is any problem then solve the problem as soon as possible.
In this post, I will discuss how to make a motor inspection chart and some most common troubleshooting for an induction motor. So let’s go.
SL | Inspection Frequency | Item of Inspection |
1 | Hourly | Temperature: Ampere: Voltage: Sound and Vibration |
2 | Daily | Check Air Out Ways are Clear or Not: Visual Inspection |
3 | Weekly | Bearing Condition: Commutator or Slip Ring, Brush |
4 | Monthly | Cable Condition: Vibration Measuring: Blowing, Cleaning |
5 | Quarterly | Bearing Lubricating |
6 | Half Yearly | Thermal Box: Foundation Bolt: Condition of Insulation: Air Gap |
7 | Yearly | Switchgear: Earthing Checking: The Item Not Covered Before |
8 | Five-Yearly | Overall Inspection of Motor |
Faults or trouble for an induction motor can be categories as external faults and internal faults. Now the external faults or trouble can be classified as,
Internal faults can be categorized as the Mechanical Faults, The Electrical Faults, and the Magnetic Circuit Faults.
Mechanical Faults of Motor: Broken Brush Holder, Damaged Commutator, Bad Bearing Condition, Shaft is Bend, Misalignment, Fouling of Cooler or a Defected Motor Cooling System.
Electrical Faults of Motor: The Motor Winding Inter Turn Short Circuit and Very Poor Contact, Punctured Insulation.
Magnetic Circuit Faults of Motor: Break Down of The Inter Laming Insulation and Non-Uniform Flux Between The Parallel Branches, Core is Abnormally Hot.
Related: What is IP or Ingress Protection
Related: How to Select a Perfect AC Motor?
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