Single phase motors are commonly used for industrial and domestic applications. They are cost-effective, easy to maintain and compatible with different types of applications. In this article, we will discuss the wiring diagram of a single phase 2 speed motor. We will also provide a comprehensive guide on how to wire this type of motor.
Understanding Single Phase 2 Speed Motor
A single phase 2 speed motor is a type of motor that has two different operating speeds. This type of motor is commonly used in air conditioning systems, washing machines, and other industrial applications that require different speeds for different operations.
Single phase 2 speed motors are made up of two windings – the main winding and the auxiliary winding. The main winding is responsible for the low speed operation while the auxiliary winding is responsible for the high speed operation.
The motor speed can be changed by simply switching the connections of the auxiliary winding. This is done by using a special switch known as the double pole double throw (DPDT) switch. The DPDT switch has six terminals that are labeled as follows:
| Terminal | Description |
|---|---|
| 1 | Low speed connection of the main winding |
| 2 | High speed connection of the auxiliary winding |
| 3 | Low speed connection of the auxiliary winding |
| 4 | Common terminal |
| 5 | High speed connection of the main winding |
| 6 | Not used |
Wiring Diagram
Wiring a single phase 2 speed motor is relatively easy. The first step is to identify the wires that are coming from the motor. Most single phase 2 speed motors have three wires, namely:
- Black wire – This is the wire that is connected to the low speed connection of the main winding
- Red wire – This is the wire that is connected to the high speed connection of the main winding
- White wire – This is the wire that is connected to the common terminal of the DPDT switch
The following is a step-by-step guide on how to wire a single phase 2 speed motor:
- Connect the black wire to terminal 1 of the DPDT switch
- Connect the red wire to terminal 5 of the DPDT switch
- Connect the white wire to terminal 4 of the DPDT switch
- Connect a jumper wire from terminal 2 of the DPDT switch to the high speed connection of the auxiliary winding
- Connect a jumper wire from terminal 3 of the DPDT switch to the low speed connection of the auxiliary winding
FAQ
What is a single phase 2 speed motor?
A single phase 2 speed motor is a type of motor that has two different operating speeds. This type of motor is commonly used in air conditioning systems, washing machines, and other industrial applications that require different speeds for different operations.
How does a single phase 2 speed motor work?
A single phase 2 speed motor is made up of two windings – the main winding and the auxiliary winding. The main winding is responsible for the low speed operation while the auxiliary winding is responsible for the high speed operation. The motor speed can be changed by simply switching the connections of the auxiliary winding using a double pole double throw (DPDT) switch.
What is a DPDT switch?
A DPDT switch is a special switch that has six terminals that are labeled as follows: 1, 2, 3, 4, 5, and 6. It is used to change the connections of the auxiliary winding of a single phase 2 speed motor to change the motor speed.
How do I wire a single phase 2 speed motor?
The first step is to identify the wires coming from the motor. Most single phase 2 speed motors have three wires, namely black, red, and white wires. The black wire is connected to terminal 1 of the DPDT switch, the red wire to terminal 5, and the white wire to terminal 4. Jumper wires are then connected from terminal 2 to the high speed connection of the auxiliary winding and from terminal 3 to the low speed connection of the auxiliary winding.
What are the applications of a single phase 2 speed motor?
Single phase 2 speed motors are commonly used in air conditioning systems, washing machines, and other industrial applications that require different speeds for different operations.
