Interested to Buy Any Domain ? << Click Here >> for more details...
Can CT Secondary left open circuited and why(reason)?
- 5 Answers
- 10186 Views
- I also Faced
- E-Mail Answers
Answer Posted / raul
absolutely NOT bcoz during normal operating conditions, the
primary and secondary current are equal and opposite to
each other.........so the mmf of both primary and secondary
are in direct opposition........but secondary current is a
bit lesser than d primary current and this difference is
utilised in magnetising the core.......but if the secondary
is left opened then there will be no demagnetising mmf left
and excessive flux will b generated in the core and due to
this enourmous amount of voltage will b produced in the
secondary which is very harmful for life and CT also. also
there will be a loss of accuracy in future due to residual
flux left in the core.
| Is This Answer Correct ? | 5 Yes | 2 No |
Post New Answer View All Answers
State the factors, for the choice of electrical system for an aero turbine.
What is bode plot?
Dear sir, I have completed DECE in the year 1995. I have work experience in HT and LT LINE more than five years. Now i am doing BE in EEE from rajasthan university. After completion of BE,can i apply "C" Licence sir? Please reply.
i am trying to PSUs/govermeant jobs since last 2 years but still i m not success, plz help me.
What is CCT (Correlated Color Temperature) ?
HOW CAN WE DECIDE THE SUPPLY VOLTAGE FOR MOTOR ACCORDING TO ITS RATING(IF ANYONE KNOWS GIVE IT WITH EXAMPLE AND ITS CALCULATIONS)
I am getting above 60 V as open delta voltage against single phase unit ICT at tertiary delta formed and ICT getting trippped on NDR. ICT tested and found in order. PTs provided on tertiary are tested and in order. what may be the reason?
There is any especial requirement for motor to drive through with VFD?
What are the Full Forms of TVM, MTL, CVT ?
Is it a better option to procure screw type air compressor rather than reciprocating air compressor?If so, what is the reason?How should we select an air compressor(100 CFM)? Please mention the important parameters of air compressor.
My load is 1635 KW. & current pf is 0.884, I have to improve it for 0.99.Please suggest what KVAR value is needed?
I am doing apprenticeship training at HT switch yard in NLC. How can i get electrical c license. ??? What r the rules for getting it as an apprentice? ??
1. What is the exact formula for one weber? for example,(one ampere = one coulomb electron of electrons crossing a point of conductor at one second. i.e, 1A=1Q/1sec)
what is the difference between oil surge relay and buchholz relay.
why ups rating in kva? and why ups are in parellel?.why isolation transformer is used in ups?
