Why Do Motors Break Down, and How Can They Be Avoided?

Every electric motor has a specific lifespan, typically between 30-40,000 days of service. However, this depends on whether they receive the proper maintenance; in the absence of such, they’ll probably fail far more rapidly.

“Maintenance,” or “technical maintenance,” is an assortment of processes designed to ensure smooth and uninterrupted operation of various assets, including machinery and equipment. Implementing a well-planned maintenance program is essential to the efficiency and longevity of equipment, buildings, support, and companies.

Preventing Motor Failure

Failure to maintain can reduce the lifespan of the equipment, which increases the probability of breakdowns, increases the cost of repairs, and can slow production. If you’re aware of the most frequent causes of motor failure, what could you do to decrease your chances of experiencing one of these breakdowns and help your motor last for as long as possible.

1. Low Resistance

Low resistance is the most frequent cause of motor failure and, perhaps, the most challenging to address. Corrosion, overheating, or physical damage to the windings can cause the insulation of the windings to weaken, which can result in low resistance.

Insufficient isolation between the conductors or windings of the motor is the outcome, which could cause short circuits, leaks, and motor failure. The insulation should be checked periodically for deterioration and repaired before the low resistance is enough to cause failure.

Designing and building specialized equipment for machine balance and repair are all part of maintenance firms’ precision balancing services. You can visit this page and learn more about precision balancing. 

2. Overheating

Overheating is the primary cause of 55 percent of motor-related insulation failures. Poor power quality or a high operating temperature might cause overheating. The life expectancy of an insulating motor decreases by half for every 10 degrees Celsius increase in temperature.

A cool, comfortable working environment can help prevent motor failures; hence, keeping the motor at a reasonable temperature is imperative.

3. Electrical Overload

A surge in electrical power or an overcurrent occurs when there is a high flow of current inside the motor’s windings. This current flow is more than the contemporary design that the motor can handle effectively and securely. It could be caused by the low voltage of the supply, which results in the motor needing more current to maintain its power. A high level of electrical power can also trigger short circuits.

To prevent overloading electrical circuits To avoid overload, it is essential to install adequate overcurrent protection that detects overcurrent and shuts off the source.

4. Vibrations

Vibration can cause various issues for the motor, such as premature failure. The motor will vibrate when mounted on an unstable or uneven surface. It’s also possible that vibrations are caused by underlying motor issues, such as damaged or misaligned bearings or corrosion.

The frequency of vibration should be checked regularly with an analyzer. Make sure the motor is on a level, sturdy surface to prevent vibration. There could be misalignment or wear causing the vibration. If you fail to locate the cause of the vibration, it is recommended to speak with a professional.

Mechanical failure may occur if low-speed balancing is not employed to alleviate vibration concerns. You may browse the internet for reputable businesses that provide compressor balancing services, or you can inquire for recommendations from people you know.

5. Contamination

Dust, dirt, and chemical contamination are among the most frequently cited reasons for motor failure. Things introduced into the motor can cause damage to the bearing raceways and balls and cause excessive vibration and wear, which could be hazardous. It may also obstruct an air cooling system, reducing the motor’s capacity to control its temperature and increasing the possibility of overheating.

Keep all work surfaces, equipment, tools, and other work surfaces cleaned to limit the possibility of contamination getting into the motor. If possible, avoid motors near grinding equipment known to spew large quantities of pollutants.

Companies that undertake condition based preventive maintenance use the most cutting-edge technology and computer analysis available to find machine issues and arrange repairs.