Motor start capacitors are used in single phase motors to increase the starting torque and to break static inertia. These capacitors do not work continually as they disconnect when the motor reaches 70% of its speed.
General characteristics:
Electrolytic capacitor
PO: Does not have internal protection device
Low dispersion factor ( low losses W/kVAr)
High insulation dielectric resistance
Cylindrical can
Construction:
1. Dielectric material: Electrolytic
2. Encapsulation: Capsule in plasticized Bakelite, guarantees high insulation resistance, strong shock resistance
3. Sealing system to maintain and protect the electro-liquid
4. Connection terminals: Fast-on
5. Has fixing system *