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
If 100 KAV USP dedicated earth got disconnect / Cut. What will happen at load.
what is the condition for YnD11
Sir, plz tell me how droop setting is done in parellel operation od DG set ? please give practical example ?
what is the max. acceptable leakage current in 33kv bus bar
how to calculate the power factor when instantaneous voltage and current has harmonics in it ?
in general it is observed in power stations, the tertiary winding is used in higher rating Y-Y auto transformer but not in Y-Y power transformer. is the tertiary winding is compulsory then why it is not using in power transformerÂ
can i connect the two phases of scott connected transformer,if not why?
how to calculate the magnetizing current of ct ( 800A/1A) for Relay 64
Metal covered multiconductor cables shall employ a marker tape located within the cable running for its complete length in lieu of cable surface marking. Is it true or false?
What is the name of the winding from which the supply is taken for load connections?
in 1-phase 230v,how in 3-phase 440v. in each phase in between 230v.
how can i change the rotation of the AC single phase induction motor and show me by diagram
What does the kvar means?
what is the effect of higher value of GD???
WHAT IS THE WINDING PROCEDURE OF ELECTRICAL MOTOR