how to calculate knee point voltage of current transformer?
Answer Posted / saleh abdulsalam trabelsi
to calculate knee point voltage of current transformer by
formal
Vknee point = Isecandary(Rct+ Rcable+ Rburden)
where
Rct= resistenc of current transformer
Rcable =resistenc of cable =2Rcable
Rburden =burden of relay
IF Vknee point< manufacture voltage of current transformer
current transformer is good
IF Vknee point> manufacture voltage of current transformer
current transformer must be change
| Is This Answer Correct ? | 88 Yes | 47 No |
Post New Answer View All Answers
if 2 coil of 1000W connect in series and 200 v is applied across it . then what is the total power of coil when coil have only resistive load .
Which level of the Transformer oil got dielectric strengh? And why?
Why the frequency of ac in india is 50 hz but in some other countries it is 60 hz.
hello friend i wish to study a course related to the electrical construction, controlling and monitoring , which course i want to study? pls give me the name of institute?
Can we transmit digital signal to long distance ?
What is superposition theorem?
what will happen if ac and dc supplies given
what is the Transformer Impedence?How can calculate?
1.what is meaning of curve into a mcb. 2.what is basic reason changing of curve
Difference between drift current and diffusion current?
what's the difference between abs/inc encoders. apart from the position remembrance what are all the other differences. and what's mean by grey code.
What is the application of Dyn1 and Dyn11 vector group of transformer?
how to i get B licence,i am completed BE electircal and electronics engineering.i want to konw the proceduure to get b licence
ht side line to earth voltage
best manufacturer for busbar for outdoor switchyard having double bus bar scheme, can any one share technical specification of busbar. 132kv voltage ?