Deionization of Gas due to Decreasing Temperature

Deionization of Gas due to Decreasing Temperature
 

deionization of gas due to decreasing temperature
deionization of gas due to decreasing temperature

 
The rate of ionization of gas depends upon the intensity of impact during collision of gas particles. The intensity of impact during collision of particles again depends upon velocity of random motions of the particles. This random motion of a particle and its velocity increases with increase of temperature of the gas. Hence it can be concluded like that if temperature of a gas is increased; its ionization process is increased and opposite statement is also true that is if the temperature is decreased the rate of ionization of gas is decreased means deionization of gas is increased. Therefore more voltage required to maintain arc plasma with a decreased temperature. Finally it can be said that the cooling effectively increases the resistance of the arc.
Different types of circuit breakers employ different cooling techniques which we will discuss later in the course of circuit breakers.