Answer Posted / jaswant rajawat
Bus earthing truck is use to earth bus bars of switchboard
at the time of maintenance of bus bars. For this we have to
remove incomer breaker panel and insert bus earthing truck
so that bus bars will remain earthed during maintenance.
Cable earthing truck is use to earth incoming cable or
outgoing feeder cable in switchboard during maintenance at
transformer end or motor terminal box.
| Is This Answer Correct ? | 39 Yes | 3 No |
Post New Answer View All Answers
In India the supply voltage is 230 volt A.C. During the negative half cycle phase becomes neutral and neutral become phase? or what will happen during negative half cycle? how the electrons flow during positive and negative half cycle?
what is a bus riser in power system and why it is used
An active element is one which a. Supplies energy b. Absorbs energy c. Supplies energy and convert energy from one form to another
Main advantage of auto transformer over two windings transformer is that A it needs no cooling B it uses only one winding C core losses are reduced D it has simple construction
Why the frequency of ac in india is 50 hz but in some other countries it is 60 hz.
why is the power generator connected as star earthed or star earthed through reactance and what its features ?
plz send me HPCL apptitude paper.. maulik_elect@yahoo.co.in
is it true there's a big difference in using Cummins or Denyo...especially power output or leakage
what is the difference between delta delta and star delta connection transformer? why we use delta delta transformer since it need earthing transformer for grounding?
what happens when series resonance occurs?
can anyone provide me a amf panel control wiring using ec-2 relay?
Why control of DC motor is simpler?
how to increase or decrease speed in DC shunt motor by DC convertor
why motor range is available 22kv,30kv,37kv,45kv and so on? why motor range is not available 21kv,24,25,26,27kv and so on?
In Dyn11 power transformer if any one of the 3 phases connected to earth in star connected side then please explain effect of the current flow in delta connected side of transformer.(In this case if one phase is shorted to ground in star connected side then we observe the current flow in two phases only not three phases in delta connected primary side. Please explain why it is so?)