YY Series Single-phase Capacitor Running Asynchronous Motor

The Difference Between YY/ YL/ YC Single-Phase Induction Motors

YY series is a single-phase AC motor with a capacitor running, and the capacitor participates in both motor startup and motor operation. YY series single-phase capacitor running asynchronous motor has the characteristics of a small starting current, high power and performance index, reliable operation, and convenient maintenance. It can be widely used in household appliances, fans, recording instruments, and occasions with low requirements for starting.

YL series is a dual-value capacitor single-phase AC motor; there are two capacitors. To increase the starting torque of the motor, the starting capacitor participates in the starting when the motor starts; after the motor starts, the starting capacitor is disconnected by the centrifugal switch and does not participate in the motor. Operation; YL series motors are characterized by the low price, large starting torque, and strong overload capacity, and are also suitable for use in places where the power supply voltage is unstable. They are widely used to drive metal cutting machine tools, pumps, transportation machinery, mixers, agricultural machinery, food machinery, household appliances, etc.

YC series is a single-phase capacitor starting AC motor; only + has a starting capacitor. When the motor starts, the starting capacitor participates in the starting; after the motor starts, the starting capacitor is disconnected by the centrifugal switch and does not participate in the motor running. Features, high price, large capacity, high requirements for power quality, and cannot be used in places where the voltage is unstable.

How to Speed Control a Single-Phase Motor?

Single-phase motors are one of the most widely used types of electric machines. Using speed control algorithms, you can minimize the energy consumption and audible noise associated with the motor. Single-phase induction motors are unidirectional, and the direction of rotation is controlled by adding extra windings, external relays, or gear mechanisms. Motor control algorithms that use microcontrollers can also alter the speed of single-phase motors.

First, remove its capacitors to adjust the speed of a single-phase motor. If the capacitors are damaged, you may need to remove them. Next, connect the single-phase motor wire to the terminal block of the rheostat. Next, connect the motor to the power supply. Then, insert a screwdriver into the holes and tighten them. Next, install a variable rheostat.

Single-phase electric motors are categorized into three different types. There are three motor types: single-phase, three-phase, and DC. In a single-phase motor, a rheostat is a primary control, but an SCR controller maintains a constant torque, while a rheostat reduces the voltage. On the other hand, a rheostat is a mechanical device that reduces the voltage, resulting in lower available power and torque.

Can You Put a Vfd on a Single Phase Motor?

If installing a single-phase motor, you must know that the current flowing through it is only one phase. You must also remove the capacitor. A single-phase motor can work as a backup, but a VFD is the best solution for a motor with too much current to run on one phase alone. A VFD is also suitable for reversing the direction of a motor, but it’s important to note that a single-phase motor is not suitable for a three-phase motor.

One of the first things you need to know is the maximum cable length. A typical VFD-motor circuit has no more than 50 feet of cable, but if your lead length is longer, it may not be easy to mount the VFD. You'll need additional filters and protections if the lead length is longer than 50 feet. A load reactor and a DV/DT filter may be necessary to protect the VFD from voltage spikes.

One disadvantage of single-phase motors is that they are wrapped differently than three-phase motors. You must connect the motor to two hot wires for single-phase AC power to put a VFD on a single-phase motor. You should leave one input terminal open. The downside to this configuration is that the input diode may fail. To solve this problem, you can buy or rewound a single-phase motor. Nevertheless, problems with single-phase motors can arise even with these two-phase connections.