how to calculate knee point voltage of current transformer?
Answer Posted / pankaj
The knee-point voltage will depend on the size and class of
the CT, and it can be very high on some CTs (several
hundreds of volts) Be very cautious, you will be working on
live equipment during the test.
Now you can just plot the current and voltage values on a
graph. This is the mag-curve of the CT. IEC classify the
knee point voltage as the point where a 10% increase in
voltage results in a 50% increase in current.
Is This Answer Correct ? | 13 Yes | 3 No |
Post New Answer View All Answers
What is corkscrew rule?
please tell me, how i clear the objective test? when i studied form the one book after i solved the objective ,that time i solved that qes. but if i tried solve objective form the other book then i could not solved these que.
I want to know all basics of electrical engineering
in control panel, how can i measuring the distance between one bus bar to another bus bar. then now only for bus bar. in mpcb and contactor also. that means one mpcb to another mpcb how much distance? how can i calculate that.
How many types are using in 220kv/400 kv swith yard
HOW MUCH CURRENT DOES SYNCHRONOUS MOTOR TAKES AT SYNCHRONOUS SPEED IN NO LOAD CONDITION ?
What is transient response?
The slip during plugging operation is given by= A 1-s B 2+s C 1+s D 2-s
what are factors to be consider in electrical installation like load factor,diversity factor .....
is the value of inductance depends upon the value of thitha in doubly excited machine??
What is the difference between isolators and electrical circuit breakers? What is bus-bar?
i have interview in Pepsi company what type of question will ask please send the question and answeer
what is counter poise conductors
why industry prefer ht motor instead of lt motor.
what is kvarh? Please define it With calculation General motors ?