extremely urgent please, why a fuse is used before
voltmeter but not with a ammeter connected to a CT(current
transformer),thanks in anticipation.
Answer Posted / the electrical genius
In case of C.T., if higher value of current will flow, the C.T. core will saturate and so not high current will flow in its secondary. Thus, no use of fuse in this case.
While in case of voltmeter, the resistance of voltmeter is very very high and it limits the current flowing through it in the range of mA. So use of fuse in that case is also not needed !
| Is This Answer Correct ? | 0 Yes | 1 No |
Post New Answer View All Answers
I WANT BHEL PREVIOUS QUESTION
EXPLAIN THE TRANSFORMER MAINTENANCE?
We normally make oil soak pits under Transformers. Oil from soak pit goes to collection pit. We provide granules/pebbles under transformers. My question is weather granules/ pebbles to be filled in soak pit or not? if yes upto what level?
why dc is used in control circuit for mv & hv switchgear instead of ac
What is zero of the system?
What will be the current if the resistance total in a series circuit doubles?
diameter of cable and core is doubled then the value of capacitance is
how to interlock 3 incomer-ACB,1 buscoupler ACB,... pls answer this question and if possible send me the ckt diagram..haifriends2910@gmail.com
please send me previose rrb junior engineer qustion papers
How to calculate the efficiency of Turbo Generator(Alternator) in general....?
is there any lightning by passer is arranged in ship like buildings?
why need to be maintain power factor for industrial customer?
What is an ac motor?
Which cable is use for rtcc control panel
what will happen if i connect 12 volt battery with 24 volt battery charger.