Answer Posted / shubham.rakhe
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oil cooled transformer
what is magnetizing and demagnetizing current in generator and motor?
what is smartµ grid technology?under coal gassification?
advantage and disadvantage of team work?
following are the questions asked in interviews: 1) Considering the short circuit fault, which switchgear is preferable, SFU OR MCCB? Which operates faster? whicg one is popular in Indian Market and why? 2)Define SCPD. What is type2 coodination? 3)Why the contactor rating is higher for the fuseless selection than for fuse selection? whether the ratinf of SFU or MCCB remains the same in both the cases? 4)If the HP rating is known then can you calculate the ratings of L.V Switchgear(SFU/MCCB, contactor, OLR) without using the selection chart?
why do you add the load short circuit impedance when considering short circuit amperage. It seems that you should only consider supply. If you need to consider loads and you don't know what loads are to be added , what would be a good sub-transient reactance rating for the loads?
What is the efficiency during maximum power transfer?
How much no load current of synchronous motor
The Q-facr o of a coil given as wL/R. what will be shape of Q versus frequency graph.
how commomn gate triggering is given for TRIAC ? other thyristor wont be efffected?
How to calculate wire length,size & current? ( related to control panel)
what things to be considered when designing UPS
how do we calculate length of starting time and repeated starting of a direct online starter?
What is the basic rule for block diagram reduction technique?
please give some hindalco placement papers for written exam
