Skip to main content

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

Labels:

Comments

Post a Comment

Popular posts from this blog

Deflecting Torque, controlling torque , spring control method , gravity control , Damping torque - full concept

basic Requirement for measurements        *  Deflecting Torque        *  controlling torque         *  spring control method       * gravity control        * Damping torque  Deflecting torque  The force (power) needed for the diversion of the pointer is called deflecting force. The framework which gives the avoiding force, when the current is gone through it is known as a redirecting framework. Each instrument will have an avoiding framework that changes over the electric energy into mechanical energy and consequently giving the important and adequate diverting force. This is accomplished by using the different impacts of electric flow or voltage. The diverting force makes the moving framework move from its zero position. The avoiding force is created by using at least one of the accompanying impacts of current or voltage controlling torque  The controlling f...
Post a Comment
Read more

air preheater in thermal power plant - function , construction , working ,advantage , disadvantage

definition of air preheater air preheater increase the temperature  of the air. It is most commonly used in thermal power plant. And it is increase the efficiency of the boiler. Working of air preheaters (APH) 1. The hot fuel gas from the economist first enters the air preheater. Then those gases go through the tube to the chimney. The air mass then enters the preheater through the air inlet.  2.  Then both air and fuel gas flow in opposite directions.  3. baffles are provided in the air preheater to provide more time for exchanging heat from fuel gas to air   4. thus heat is absorbed by the air from the fuel gas. 5. this preheater air is supplied to the furnace.  construction   1. A tubular type air preheater is a large number of tube . 2. the fuel gas pass through the tube. 3. air flows over the tube. 4. baffles are provided to pass the air b number of time over the tube.  5. a soot hopper is provided at the bottom to collect the soo...
Post a Comment
Read more

Qualcomm Snapdragon 665 processor - basic information

 Qualcomm Snapdragon processor   The Qualcomm Snapdragon 665 (SM6125) is a quick mid-range ARM-put together SoC generally found with respect to Android tablets and cell phones.  It highlights 8 Kryo 260 centers (hand craft, 64-Digit able) that are partitioned in two bunches.  A quick group of four centers with up to 2 GHz (Kryo 260 Gold - Cortex-A73 derivate) and a force saving proficiency bunch with up to 1.8 GHz (Kryo 260 Silver - Cortex A53 derivate).  The two groups can likewise be utilized together.  Notwithstanding the 8 central processor centers, the SoC incorporates a mid reach Adreno 610 GPU with a LPDDR4 memory regulator (double channel) and supports Wi-Fi (802.11ac + MIMO, at the most.  867 Mbps), Bluetooth 5, and LTE (X12 LTE modem with up to 600 Mbps download and 150 Mbps transfer).
Post a Comment
Read more