Interested to Buy Any Domain ? << Click Here >> for more details...
Answer Posted / iamdon
The CT secondary should not be left opened secondary due to
following reasons:
1)Zero current in secondary leads zero back emf.So primary
current becomes very high.Large heat generated may burn the
winding and core.If the transformer sustain this heat, even
then its operation becomes improper as explained below.
2)CT is bascially a step up transformer.So high voltage
induced in secondary may saturate the core (core becomes
permanently damaged).So the operating point advances in non
linear region,which makes the transformer operation improper
(secomdary current will not replicate the primary according
to the turn ratio).
3)High voltage induced in secondary side may endanger the
life of personnel working on the side.
Author:arbelectbit@yahoo.com
| Is This Answer Correct ? | 16 Yes | 2 No |
Post New Answer View All Answers
block diagram of 2 ups system connected in parallel mode?
what is the advantage of connecting capacitors in delta than in star?
why ten delta testing is carried out on power transformer
why do you add the load short circuit impedance when considering short circuit amperage. It seems that you should only consider supply. If you need to consider loads and you don't know what loads are to be added , what would be a good sub-transient reactance rating for the loads?
what is the earth current,reverse power,electrical trip generator short circuit,low voltage, high voltage please discribe me
What is the lower limit of break-down voltage of converter transformer.
Are Refrigerators & Deep Freezers the Inductive load ? How to calculate the Power Factor & hence the Output Power for them ?
Explain advantages of storage batteries
how to select overload-relay for perticular motor 1.for D.O.L. starter 2. for Star-delta starter ????
how do we calculate length of starting time and repeated starting of a direct online starter?
Explain forward resistance, static resistance and dynamic resistance of a pn junction diode.
is it possible to have dc motors on single chip
what is protection class current transformer.
how much UPS neutral erath leakage current.
What will happened if the neutral of the (star connected secondry) Xformer disconnected? (if its Above KVA rated one)
