what is the knee point voltage in current transformer
Answer Posted / chetan sharma
10 % increase in voltage gives you 50 % increase in
excitation current is called knee point voltage.
To measure this first demagnetise the CT and apply
voltage gradually from secondary keeping primary
winding open circuited. while doing this above
phenomeneo will be obsesrved.
| Is This Answer Correct ? | 1 Yes | 1 No |
Post New Answer View All Answers
What is the basic principal, by which DC voltage level is increased more than the supplied AC voltage during conversion. As upto AC level it is contorrled by firing anlge but after maximum level how is it possible.Please clear picture. OR we have to supply the higher level AC?
how much maximum load a 2 core (Single phase) 16mm aluminium wire can take ?
In india, according to trade theory above 5 HP motor reqired star delta starter. But we R connect 11 KV motor with 14MW in Direct to line ( With VCB starter combination) Can U Guess, How it is possible ?????
why ahould you show client/engineer activities clearly on the project plan
How Can you do Maintenance of ACB of 2000Amperes
what is the advantages of having in-built acvvvf (without seperate inverter in the control panel)in the drive system of elevators?
what is active power & reactive power?
Why electrical power generation and transmission done in 3 phase system not more than 3 phase ?
How much ph is maintained of water electrolyte which is used in LRS for 1200 kw slipring induction motor ?
Difference between field rheostat and armature rheostat.
do we use neutral grounding for resistive balanced load? if we use what happen?
why can the rotor of 3 phase slip ring induction motor not be a 2 phase rotor?
HOW TO CALLICULATE RESITENCE,REACTANCE AND IMPEDENCE VOLTGE OF TRANSFORMER 13.33 KVA 144/240 VOLTS 93/56 A WITH FORMULA
what is basic difference betmeen normal & flame proof motor??
What are marginally stable systems?