Monday, 24 June 2019

Tesla Coil , History Of Tesla Coil , Construction And Working Of Tesla Coil

Tesla Coil , History Of Tesla Coil , Construction And Working Of Tesla Coil 



  • History of Tesla coil
Tesla coil is device which use in high voltage engineering and which is invented by great scientist Nikola Tesla in 1891.
  • What is Tesla coil?
Tesla coil is the two stage transformer which generates high voltage and high frequencies.



Power level of Tesla coil is 1 to 6 kw or more and frequency level of Tesla coil is between 100 to 500 kHz.


Tesla coil is the high voltage and high frequency power generator.


This device is made for wireless electricity transmission.


The primary purpose of made this device is conducting experiment and for alternating electricity theory observation.

  • Construction
Material used in Tesla coil is
  1. Primary coil
  2. Secondary coil
  3. Capacitor for primary coil
  4. Capacitor for secondary coil
These two coils with capacitor are connected through a spark gap

A Tesla coil required high voltage supply source.

A regular supply is given to the primary coil.



  • How Tesla coil works?
When we apply the supply to primary coil , first capacitor will be charge and then current can flow in  primary coil.


For large amount of current can flow in primary coil , so primary coil is made of copper wire. Copper wire is good conductor for flow large amount of current.

Now, Due to this current emf is generated in primary coil and due to emf magnetic field is generated. 

Generated magnetic field is coupled with secondary coil. Due to this magnetic field large amount of energy or voltage is get at output and it will be show by pulse or spark.

All the primary energy transfer to the secondary. Secondary coil output is increases whenever primary all the primary output voltage is transferred to the secondary.

If Tesla coil design is good, then above 85% of energy transferred primary coil capacitor to the secondary coil.

So voltage gain of Tesla coil is greater than the conventional transformer.


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