Draw Schematic Diagram Of Capacitor Start Capacitor Run Induction Motor

4 min read Jun 26, 2024
Draw Schematic Diagram Of Capacitor Start Capacitor Run Induction Motor

Draw Schematic Diagram of Capacitor Start Capacitor Run Induction Motor

Introduction

A capacitor start capacitor run induction motor is a type of single-phase induction motor that uses two capacitors, one for starting and one for running, to improve its performance and efficiency. In this article, we will learn how to draw the schematic diagram of a capacitor start capacitor run induction motor.

Components of a Capacitor Start Capacitor Run Induction Motor

A capacitor start capacitor run induction motor consists of the following components:

Stator Windings

  • Main winding (M)
  • Auxiliary winding (A)

Capacitors

  • Starting capacitor (C1)
  • Running capacitor (C2)

Switches

  • Centrifugal switch (S1)
  • Thermal overload protector (S2)

Motor

  • Induction motor (IM)

Schematic Diagram of Capacitor Start Capacitor Run Induction Motor

Here is the schematic diagram of a capacitor start capacitor run induction motor:

       +---------------+
       |          M   |
       |  Main Winding  |
       +---------------+
                  |
                  |
                  v
       +---------------+
       |          A   |
       | Auxiliary Winding|
       +---------------+
                  |
                  |
                  v
       +---------------+
       |          C1  |
       |  Starting     |
       |  Capacitor    |
       +---------------+
                  |
                  |
                  v
       +---------------+
       |          C2  |
       |  Running      |
       |  Capacitor    |
       +---------------+
                  |
                  |
                  v
       +---------------+
       |          S1  |
       | Centrifugal  |
       |  Switch      |
       +---------------+
                  |
                  |
                  v
       +---------------+
       |          S2  |
       | Thermal Over-|
       |  load Protector|
       +---------------+
                  |
                  |
                  v
       +---------------+
       |          IM  |
       |  Induction   |
       |  Motor      |
       +---------------+

Working Principle

The working principle of a capacitor start capacitor run induction motor is as follows:

  1. When the motor is started, the centrifugal switch (S1) is closed, and the starting capacitor (C1) is connected to the auxiliary winding (A).
  2. The starting capacitor (C1) provides a high current to the auxiliary winding (A), which helps to create a rotating magnetic field.
  3. As the motor reaches a certain speed, the centrifugal switch (S1) opens, and the starting capacitor (C1) is disconnected from the auxiliary winding (A).
  4. The running capacitor (C2) is connected to the auxiliary winding (A), and the motor continues to run using the running capacitor (C2).
  5. The thermal overload protector (S2) monitors the motor's temperature and disconnects the power supply if the motor overheats.

Advantages

The advantages of a capacitor start capacitor run induction motor include:

  • High starting torque
  • High efficiency
  • Low starting current
  • Simple and robust construction

Applications

Capacitor start capacitor run induction motors are widely used in:

  • Refrigerators
  • Air conditioners
  • Pumps
  • Fans
  • Compressors

In conclusion, drawing the schematic diagram of a capacitor start capacitor run induction motor is a straightforward process that requires a basic understanding of the motor's components and working principle. By following the steps outlined in this article, you can easily create a schematic diagram of a capacitor start capacitor run induction motor.