Automatic Switch Circuit Breaker:

The Automatic Switch Circuit Breaker is the simplest circuit interruption device is the knife switch. By closing the switch against the action of a spring we have an automatic device in which the energy for opening the contacts is stored by the closing operation. Such a Automatic Switch Circuit Breaker device is shown in Fig. (15.1).

Automatic Switch Circuit Breaker

Here only a small force and a short time is needed to open the switch by means of a simple latch, which when it is tripped, releases the stored energy of the spring and opens the contacts.

The switch now becomes a true circuit breaker which can interrupt the current under predetermined conditions, e.g. when la short circuit occurs or when excess current endangers the system.

This is obviously a very crude method of control and is used only in simple low voltage circuits.

Related posts:

  1. Automatic Bridge Circuit
  2. Gate Controlled Switch (GCS) Circuit – Operation and Advantages
  3. Transistor as a Switch Circuit Diagram and Working
  4. Automatic Voltage Control
  5. Basic Automatic Control
  6. Working Principle of Automatic Gain Control
  7. Delayed Automatic Gain Control
  8. Automatic Frequency Control Block Diagram
  9. Fully Automatic Digital Instrument
  10. Automatic Combustion Control System
  11. Automatic Block Signalling System in Railways
  12. Counter Emf Automatic Starter – Working Principle and its Drawbacks
  13. What is Electronic Switch in Oscilloscope?
  14. Interfacing Dip Switch
  15. Waveguide Switch Design
  16. DC Motor Reversing Switch Diagram
  17. Silicon Unilateral Switch
  18. Silicon Bilateral Switch
  19. Switch Mode Power Supply (SMPS) or Switching Regulators
  20. Silicon Controlled Switch (SCS) – Symbol, Operation, Advantages and Application