why ct is testing using dc.. y cant we use AC insted of dc
on POLARITY TEST.
Answer Posted / k.prakashchandra
Dc is not applied continuously. It is just touch and go, to
create momentary flux.
| Is This Answer Correct ? | 4 Yes | 0 No |
Post New Answer View All Answers
which are the criterias needed to select the kind of neutral earthing(solid earthing,resistance earthing,etc.) at various voltage levels in electrical distribution?
What is the maximum operating temperature for a thermoplastic insulated cable?
I AM FROM ELECTRICAL ENGINEERING ? I AM ASPIRING FOR "BHEL".HOW I HAVE TO PREPARE .ON WHICH TOPICS TO BE CONCENTRATE MORE.PLEASE GIVE FULL DETAILS OF WRITTEN EXAM.
What is the main use of rotary phase converter ?
what is upper impedance and lower impedance of a distance relay
what is the best method of grounding in 30 MW generator?
What is the types of HT motor testing
What is star-delta transformer?
how will calculate the safe starting current of 3-phase squirrel cage induction motor?
Please explain the following and how these are working with PLC unit 1.I/O Module 2.I/O Device 3.Adaptor Card 4.Ribbon Adaptor 5.RS 485-FC
what is the difference between switchgear and circuit breakers and is there any difference between outdoor and indoor switchgear and circuit breakers , and how would you differentiate between switch yard and substation and grid station . thanks
Following test should be conducted to find out relative polarity of transformenr terminals A no load test B back to back test C phasing out test D none of above
What are the Full Forms of TVM, MTL, CVT ?
block diagram of 2 ups system connected in parallel mode?
I want formula to calculate cable size as per load given in length & amp. I searched many sites but didn't right answer. Please reply me asap.