Interested to Buy Any Domain ? << Click Here >> for more details...
how we calculate the knee point of a protection and metering
CT and what is the testing procedure.
- 1 Answers
- 4651 Views
- CS, I also Faced
- E-Mail Answers
Answer Posted / nur.asidik
knee point voltage is only for protection, not for measurement, it is depend on your protection you need,for example, 87 need higher Vkp than 50/51, just follow your relay requirement. I mean your CT Vkp should higher than Relay required Vkp. refer to IEC, for class 5P or 10P, Vkp is as a function of ALF, Rct, VA, and secondary ratio of CT
| Is This Answer Correct ? | 0 Yes | 1 No |
Post New Answer View All Answers
State nyquist stability criterion.
sir, what is the importance of Fault MVA. how to calculate fault mva of 33kv substation connected by 6.5 km line(single circuit with equal spacing) with 110/11kv transformer in 110kv susbstation.the fault mva on 11 kv bus in 110kv susbstation is 208mva.
. How to calculate the Short Circuit Impedance in Transformer? How to calculate the Short Circuit Impedance in Transformer?
work of choke in florocent tube circuit ?
Difference between Earthing Truck & Earthing trolly for HT panel
where the lexical paramater will use in fron end?
How to test lightning Arrester?
electrical ques
How many gap between finger contact in a.c.b. and v.cb.?
As per the Anchor capstan motor specification, full load current is 200A. starting current is 1750 A and acceleration time is less than 8 seconds. Please guide for selection of cable size.
What do you mean by phasors?
dc supply given to dc generator winding.how is possible? my knowledge is saying the winding will burn. please reply.
WRITEDOWN FEW RELY CODES
What is Plank's Law?
from generating station If 400v LT line length is 1000m how much voltage is drop and how do i calculate it? which cable will be use for this line?
