How to calculate the capacity of a current transformer for a particular load ?

[dineshdeshmuk]

How to calculate the capacity of a current transformer (which amperage current transformer must be use with a specific load or amps) for a particular load ?

 

[goldsmith]

Dear dineshdeshmuk
Hi
Can you tell , me a bit more explanation , please ? what do you mean by capacity of current transformer ? are you referring to the allowed value of current ?
Best Wishes
Goldsmith

 

[D.A.(Tony)Stewart]

Check burden factor on CT secondary.
The knee point is defined as the point at which an increase of applied voltage of 10% results in an increase in magnetizing current of 50%.

Also alternative types.. Rogowski_coil

many types....

 

[dineshdeshmuk]

about the current transformer calculation ???

 

[D.A.(Tony)Stewart]

depends on component with magnetic flux saturation.. knee is where you want to calculate I expect.

 

[dineshdeshmuk]

would you take any particular example and show me the steps required to do the calculations ? plz

 

[D.A.(Tony)Stewart]

What kind?
like these? https://en.wikipedia.org/wiki/Current_transformer

 

[dineshdeshmuk]

i don't even know the types of CT , would you take each and every example of it ? plz