Different Types Of Circuit Breakers And Their Uses Pdf
These types of circuit breakers have mostly been phased out by the utilities that used them.
Different types of circuit breakers and their uses pdf. Gas circuit breakers use sf6 gas to interrupt arcs. An electrical circuit breaker is a switching device that can be operated manually or automatically for controlling and protecting the electrical power system. In this tutorial we will learn about one of the very important and extremely useful electrical devices. Magnetic type circuit breakers.
Air circuit breaker sf6 circuit breaker vacuum circuit breaker and oil circuit breaker have been discussed in a short detailed just to understand the basic concept about these circuit breakers. Sf6 is a high density gas that has high dielectric strength. We will try to understand what a circuit breaker is what is the use importance function of circuit breakers in power systems what are the different types of circuit breakers and also their applications. In this article we will learn the different types of circuit breakers their working uses and ratings.
According to their arc quenching media the circuit breaker can be categorized as. There are different types of circuit breakers which are based on voltage installation location external design and interrupting. Chapter 3 types of circuit breakers 3 1 air break circuit breaker the air at atmospheric pressure is used as an arc extinguishing medium in air break circuit breakers. Now we come to the three most common types of circuit breakers used.
According different criteria there are different types of circuit breaker. Types of circuit breakers the three main types of circuit breakers are standard gfci and afci. Sf 6 circuit breaker. Types of circuit breaker.
So when the current passing through the circuit increases the electromagnetic force increases and the contact is pulled away. These circuit breakers use the principle of electromagnetism to break the circuit. These circuit breakers employ the high resistance interruption principle. Each handles different amp capacities and operates in different locations in the home.
The arc is rapidly lengthened by means of the arc runners and arc chutes and the. As the modern power system deals with huge currents the special attention should be given during designing of the circuit breaker to safe interruption of the arc produced during the operation of the circuit breaker. Circuit breaker identification 101 broadly speaking there are three major types of circuit breakers. Without a circuit breaker there is a high risk of electrical fires electrocution and electrical shocks.
Some models have dual functionality. In this article the different types of circuit breakers i e. Thermal type circuit breakers.