Interested to Buy Any Domain ? << Click Here >> for more details...
Can CT Secondary left open circuited and why(reason)?
- 5 Answers
- 10189 Views
- I also Faced
- E-Mail Answers
Answer Posted / muhammad nazim
A CT is basically a step-up transformer(from voltage point
of view).In the case of 400/1 A CT the primary turn is 1
(say the busbar)and the secondary turns is 400.How much
will be the primary voltage drop?? it will be in millivolts
for a busbar.So this millivolts multiplied by 400 will
cause just around a few volts (say 3 to 10V) for an open
secondary.But i have read that the secondary voltage will
reach a few kilovolts for a 400/1A CT at full load
conditions.My question is how it will reach a few kilovolts
and damage the CT on open secondary condition?As we have
seen above the max voltage wil be just in few volts.So
please someone
| Is This Answer Correct ? | 1 Yes | 1 No |
Post New Answer View All Answers
Which material is used for the core of a transformer and why?
What is the differance between 2 dc motors of armature voltage 660 v and 440 v?
Briefly describe means used by electricity suppliers to influence the flow of active and reactive power in power networks (one for each type)?
Why we use circular(Stepped) cross section in transformer core?
What is the power factor of a transformer at no load?
if negative of DC supply used and positive is grounded through EGB, and if ELCB used in the system then is it sense the positive volatge and get tripped is it possible?
how does a submersible pump work..?
Why we are use dol starter up to 10 hp
3 phase Motor will be given 2 phase after 2 to 5 second we given 3rd phase so Motor Run sum-time in forward or sum time run reverse direction. All time phase sequence is not change. Why motor run in reverse direction? Please Explain........
can any one suggest me the tilt angle of my solar pannel ?? or tell me how can i know the fix tilt angle of my solar pannel?? my cordinates are 31.503629,72.993164.
I WANT TO INSTALL LIGHTING ARRESTOR ABOVE 20 FEET HEIGHT INDUSTRIAL BUILDING. NOW IT WAS 15 FEET HEIGHT HOW MUCH DISTANCE IT WILL COVER & HOW TO CALCULAT THE DISTANCE COVER BY THE ARRESTOR
i applied for c licence with my one year apperents trainee and i have attaced with A grade contractor company experiance that is for 14 monts experiance this document is sufeicant for c licence? pls tell why they rejected
What is inrush current?
Role of active and reactive Power sharing in between two synchronized Generators, Droop Setting role ?
ratings of lightning arrester
