a Circuit Breaker
Differentiate between a fuse and the circuit breaker ?
The basic differences between them is that a fuse is a piece of metal that melts when an overload occurs , while a circuit breaker has an internal switch that trips in case of excessive current flow in the circuit .
How does a circuit breaker trip?
The circuit breaker trips when excessive amount of electricity /current load flows through a circuit . The flow of electricity is cut off to keep the circuits/appliances safe from overheating or damage.
Explain the advantages of an Air Circuit breaker.
The advantages of an air circuit breaker are
- There is no risk of fire.
- As the dielectric strength increases faster, it leads to contacts having less gap in between.
- There is no need for arcing products
- The arcing time and energy are small, so frequent operations can be done.
- The interrupting current has no effect.
What are the signs of a bad breaker?
Following are the typical signs of a bad breaker:
- Burned parts and ragged wires in the circuit breaker.
- The obvious signs of wear and tear.
- The burning smell of the electrical panel.
Circuit Breaker
A circuit can be damaged which will reduce its reliability. Therefore, electrical circuits need to be protected using circuit protection devices. These will help a lot in boosting the performance of electrical tools. Plenty of devices such as fuses, chokes, decoupling capacitors Zener diodes, protection diodes, etc, can be utilized for the protection of circuits. Circuit breakers are also used for the same purpose in electrical systems.
A circuit breaker can be defined as a type of switching device that prevents damage to the electrical system by acting as a switch and that interrupts the current flow. This article will take a closer look at circuit breakers along with various types, we will study their advantages and disadvantages, examine their operational principles, and more.
Table of Content
- Circuit Breaker
- Working Principle
- Types
- Advantages and Disadvantages
- Applications
- How to test ?
- How to replace ?