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Electrical corona effect || How to create corona in transmission line

 What is corona effect?

A special stage occurs when the air on all four sides of the conductor becomes ionized by electrostatic stress and the insulation strength of the air breaks down. In this condition light dull purple ray discharge with hissing or  sound is seen on all four sides of the conductor. This condition is called Corona  effect.

basic information 

The electric field force likewise builds due to the charging flow. 

In the event that the power of the electric field is under 30kV, the flow incites between the conduit is ignored. However, in the event that the voltage ascend past the 30kv, the air between the conductors becomes charge and they begin directing. The starting happens between the conductors till the total breakdown of the protection properties of conductors happens.

DISADVANTAGE OF CORONA EFFECT 

 1. The gleam show up across the conductor which shows the force misfortune happen on it. 


2. The sound commotion happens in view of the crown impact which causes the force misfortune on the conductor. 

3. The vibration of conductor happens on account of crown impact. 

4. The crown impact creates the ozone due to which the conductor becomes destructive. 

5.  The crown impact creates the non-sinusoidal sign in this manner the non-sinusoidal voltage drops happen in the line. 

6. The crown power misfortune decreases the efficency of the line. 

7. The radio and television impedance happens on the line in view of crown impact.

SKIN EFFECT


1. The sparkle appear across the conductor which shows the power disaster occur on it. 

2. The sound upheaval occurs considering the crown sway which causes the power disaster on the conductor. 

3. The vibration of conductor occurs because of crown sway. 

4. The crown sway makes the ozone because of which the conductor becomes dangerous. 

5. The crown sway makes the non-sinusoidal sign as such the non-sinusoidal voltage drops occur in the line. 

6. The corona influence setback diminishes the efficency of the line. 
The radio and TV impedance occurs on the line considering corona effect

How to reduce the corona effect


The width of the Conductor Increase: to lessen the crown misfortunes the breadth of the conductor increments. since the increment of conductor breadth happens genuine expense, the width is getting the increment by the empty conductors. 

The Voltage of The Lines are likewise Increase: To lessen the impact the voltage levels are can increment. In any case, the increment of the voltage can just perform up to specific restriction. 

Increment the separating between the conductors: The dispersing between the conductors is expanded to lessen the impact of the crown. in any case, similar to the expanding of the voltage levels space can likewise increment up to specific restriction. Since the when the dividing of the conductor builds the voltage drop between them likewise increment.

electrical corona effect

effect of corona in transmission line

1. The presence of violet sparkle encompassed by the conductor  

2. Murmuring sound produced from the conductor 

3. Radio impedance correspondence 

4. Creation of ozone 

5. There is power misfortune in transmission line

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