Ques:- Power transformer :- (in generating station)Alternator terminals side – DeltaHT transmission line side – StarWhy?
Ques:- What is the minimun earth resistance value of an industial bit and grid bit ? and Why?
Asked In :-
Bharat Bijlee, Electromech Material Handling Systems, Sea Blue Shipyard, Maersk FPSO, xcel energy, transport for nsw, western power, southeastern railway, iko industries, abellio greater anglia,
Ques:- What are the parameters of EHT sub-station?
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Ques:- What happen when dc shunt motor field is sudden open in runing condition
Asked In :-
BuroHappold,
Ques:- If transmission voltage expressed as the multipple of formfactor(1.11)……..11,33,66,220 etc……then whymadakkathara substation(kerala) voltage is 400kv..not 440…..?
Ques:- What is called inrush current??
Asked In :-
Megha Engineering and Infrastructure, rhi magnesita,
Ques:- What are the procedures followed for underground cablelaying…..???
Asked In :-
aecom, ethiopian electric power corp.,
Ques:- What is Bucholtz Relay test???? Explain??
Asked In :-
Sime Darby, Tmeic International Corporation,
Ques:- By just seeing a transmission tower, how can we knew thevoltage it carries..?[110kv, 220kv, 400kv…]???
Asked In :-
BYD Electronic, exxonmobil,
Ques:- We have 110Vac ,10A ac supply which is converted into 110VDC & How much DC current? which factor is reqired for dc current calulation?
Asked In :-
gb railfreight,
Ques:- What different in delta & star connection in motor?explain
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Ques:- Which motor is suitable for traction? why?
Asked In :-
Ques:- Why all selected supply voltages are multiple of 11.i.e440,11 kv,33 kv,66 kv,110 kv etc
Ques:- What is the Difference Between resistance and resistivity?
Ques:- What is the power ratio between power in Star and Delta circuit?
Asked In :-
long island rail road, powerlink queensland,
Ques:- Why we use star and delta connection?why we donot give the supply directly?
