Motor hates 3 things.

User should be noted what electrical Motor hates 3 things.

1.Water(Moisture)

Moisture makes electricity flow well.

If electricity flows on motor in moisture, it causes fire because the insulation is

destroyed.

2. Dust

Dust well absorbs moisture.

Piled dust is the cause of the breakdown of insulation in the motor.

In addition dust is also a cause of noise if dust come into the bearing. 

So, dust is the cause of shortening the lifetime of the motor.

3. Heat(High Temperature)

Heat of Motor is main cause of insulation breakdown.

Motor’s temperature is defined according to insulation class.

Motor parts’ temperature such as copper wire, tube, lead wire is regulated.

If the user does not follow this insulation regulation, motor’s lifetime is shorten.

The Structure of Induction Motor

The picture shows the simple structure of AC Induction Motor.
The parts like heart in Motor are Rotor and Stator.
Specifically Stator rotates Rotor by Electrical Energy, using Electrical Magnet.

Single Phase and Three Phase in AC Electricity & Motor

Explanation about  Single-phase and Three-phase

There is 120 phase difference per phase in the Three Phase.

Usually, we call each phase U/ V/ W or R/S/T.

Frequency in AC Eelectricity

Frequency(Hertz) : one cycle a second at Alternating Current(AC)

Korea, the U.S.A: 60Hz

Europe, Australia, China, Southeast Asian Countries: 50Hz

Japan: 50/60Hz