Interested to Buy Any Domain ? << Click Here >> for more details...
how to calculate knee point voltage of current transformer?
- 21 Answers
- 157645 Views
- Bhel, Bhilai, Jackson, I also Faced
- E-Mail Answers
Answer Posted / dinesh
Below equation is helpful in calculating the knee-point voltage of Protection CTs
Vkp = ALF(VA / In + Rct x In)
ALF = Accuracy Limit Factor
VA = Burden
Rct= Resistance of the secondary winding
In = 1A or 5A
For example if the CT Ration is 500/1A, Burden is 20VA and Class is 5P20, then Vkp is 20(20/1) = 400V.
| Is This Answer Correct ? | 6 Yes | 1 No |
Post New Answer View All Answers
whati s the sludge current in ups
if we have 320KVA Genset kindly advice how much load we can put it.
how i chosse capacitor bank if my energy meter is 48 kvr? tell me capacitor bank chossen formula?
mccb service sittings be done?
what is the defination of Cable database? What are the points are considered while preparing cable database? Is there any sample available for cable database?
define the active power?
How many lightning arrestors to be installed on 50MX60MX10M building and is there any formular for that?
Which motor will you choose which can operate in both lagging as well as leading power factors?
working principle of oil startar
what are the assumptions made in swineburne's test?
how we do Vector group ,magnetic balance and tap changer test in Transformer?
hi friends this is a newcomer in your community of enthusiastic peoples. i am preparing for SSC (CPWD JUNIOE ENGG EXAM FOR ELECTRICAL) pls guide me on the same how to crack it? PLS LET ME KNOW IS ANYONE THERE WHO PASED IT? CAN I GET THE QUESTION PAPERS OF PREVIOUS EXAMINATIONS?
Define newton's law of viscosity.
what is difference between speed mode and torque mode in motor?? explain in simple words please.
if voltage bt phase & nutral is 38v in a panel board . whats the root cause.
