how to differentiate a mpcb,mcb with a contactor?
Explain their working operation
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Why we use Carbon & graphite mixxed brushes in the DC motor?
in dc shunt motor if armature wdg is open then
during parallel operation of two ac generator which condition must match before taking both parallel i.e speed /voltage rating /kva/exciation
it is used to measure the potial difference between two point?
why dc moter are not earthed ????
What do you mean by S.F.U. unit? application of it.
why the autotransformer burnt while stating the pumpmotor?, In starter and motor there was no abnormality.
What are the advantages and disadvantages of negative feed back?
What is means by MacAdam Ellipse?
HT and LT cables can be laid on same cable tray
what is the knee point voltage in current transformer
What do you mean by cold shinkable cable joint.How it is done.