Answer Posted / k.prakashchandra
If you measure voltage in armour when not earthed ,you
notice the same voltage of the conductor.As there is drop in
voltage in the conductor resulting in pd between the ends,if
the armour is earthed at both the ends the earth closes the
circuit and there will be a small circulating current
through armour also .
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
What are the reasons for the parallel operation of transformers?
Battery is a voltage source? give one example of current source and why?
we have a rewind motor of 2Hp,2800Rpm, 220Volt AC. how can we choose the running capacitor for this motor, any formula for that?
why we have and use 3 phase not 2 or 4 or other in power system?
Connection diagram for KW meter and Kva meter
How they LT panel busbar size choose
Who are the manufactures those manufacturing 3Cx2.5sqmm FRLS cables. I heard about FRLS technology adopted only in wires useful for wirings
we have 3.5MVA-11/6KV transformer. how can we calculate earth fault current and NGR calculation?
What is the comparison of PILC and XLPE cable
explain why core loss of a transformer is almost constant under different load conditions when connected across a constant voltage and constant frequency.
difference between semiconductor & conductor & insulator?
orifice sizing how done, checking & selection
how to select battery for 15 KVA UPS with formula
If a current -8+6sin6t is flowing three ammeter, one is a centre zero PMMC meter, one is true rms meter and one is moving iron meter. What are the reading of these three meter respectively?
How much current will a 5 HP delta connected motor at no load will take?Is tat need a starter