Single-phase motors differ in the starting method. Let's look at the difference between a capacitor motor and a motor with a starting winding.
With a starting winding
It has a separate starting winding, which is turned off by a centrifugal switch after acceleration. Then it works only on the working winding.
- Pros: simple, cheap.
- Minus: low starting torque, the centrifugal switch is a weak point.
Capacitor
Uses a capacitor to create a phase shift. It comes with a starting capacitor, a working capacitor, or two.
- Plus: higher starting torque (with a starting capacitor), smoother operation (with a working one).
- Minus: the capacitor is a consumable element and may fail.
Comparison
| Parameter | With a starting capacitor winding | Capacitor |
|---|---|---|
| Starting torque | Average | Higher |
| Weak point | Centrifugal switch | Capacitor |
What is important when repair
If there is a malfunction, first check the “weak point”: for capacitor engines - capacitor, for engines with a starting winding - a centrifugal switch. Often replacing these elements solves the problem without rewinding.
Does a single-phase motor not work in Tashkent? Elektromotors engineers will determine the type and fix the problem - leave a request.