OB2001/001V

OB2001/001V is a type of low capacity 1-phase split capacitor motor. It is designed to power electronic devices such as pumps and other applications requiring low power. Ob2001/001V is also referred to as a split phase motor because its construction involves two phases of current. It is typically used in applications where the load requires high starting torque and relatively stable and low speed operation at minimal energy cost.

The OB2001/001V Motor utilizes two independent windings and a capacitor connected in parallel with them to form the two phases. The windings are 120° electrical degrees apart and two capacitor plates are used to provide a split phase of power. Each winding needs a return path so that each electrical circuit can function correctly. The current in each circuit is different. One winding has current that is in phase with the voltage source, so it is known as a "main winding", and the other the "auxiliary winding", has a current out-of-phase with the voltage source.

The OB2001/001V Motor is usually suitable to use in low power applications without much vibration due to its split phase construction. It usually has higher starting torque than single-phase motor, so it is suitable for applications that require high torque at start up despite the return energy cost due to the absence of rotation when stopped. The OB2001/001V Motor also runs more silently because of the out-of-phase current.

The applications of OB2001/001V Motor cover fans such as bathroom exhaust fans, furnace or ventilation fans, pumps and centrifugal pumps, which commonly require low power and high torque during startup. Additionally, its relatively low cost and superiority to single-phase motor in low power applications make it widely used in the air conditioning refrigeration industry.

The working principle of the OB2001/001V is based on the split-phase design. Its two independent windings are 120° electrical degrees apart and two capacitors plates are used to provide a split phase of power. Every phase supplies one winding with related voltage while the other winding is not energized. During the starting, the out of phase winding produces a high phase voltage difference as a result of the lag in current. This lag produces the necessary torque to start the motor.

The capacitor connected in parallel provides a phase shift of current, which is beneficial for accelerating the motor smoothly. The larger the phase difference between the main and auxiliary windings, the higher the starting torque. Therefore, the size and value of the capacitor are important for adjusting the phase shift to achieve maximum output.

In conclusion, the OB2001/001V Motor is a type of low capacity 1-phase split capacitor motor suitable for applications requiring low power and high torque during start up. The two independent windings, each in a different phase, are used to power the motor and a capacitor parallel to both windings provides the necessary phase shift for successful operation of the motor.