ceiling fan wattages rating
What is the formula to calculate the no load current of a single & three phase induction motor
A 10 kva ,400v/200V , single phase transformer with 10% leakage impedance draws a steady short -circuit line current of
can any one help me for my ups inter view , list out few basic technical ups question with answer.
can we transmit power with out cable if it is possible how it is possible.
what is Ith current?
Will The Rated Capacity of 20 MVA ,220/6.6 KV, ONAN cooling Power Tranformer be increased up to 25 MVA with respect to its %Impedence by ONAF cooling with same rating..?
7- What is the Dissipation Factor and the difference between it and Insulation Resistance Test? 8- What is the task (function) of DC and AC reactors in power plant? 9- What is the task (function) of (open delta with earthed) in some types in transformers? 10- What is the base of the selection of the vector group in transformers? 11- What is the zig-zag transformer and its function by drawing in large detail? 12- What is the polarity ? 13- Why we make short between phase(R) in high side and phase (r) in low side in vector group test? Where High Side ( R ,S and T ) and Low Side ( r ,s and t ). 14- What are the time on delay and time off delay? 15- What is the vector group? 15- What is the task (function) of different types of vector group such as Dyn11 , Dd0 , YNd1,……..,?
Difference between RCCB, RCBO and ELMCB.
why ht motors are connected in star?
What is maximum AC & DC transmission voltage in India? and where?
If I have Energy Meter Ratio as 100:5 & Also I have CT Ratio as 50:5 then what will be my multiplying Factor(M.F.)
what is the maximum current carrying capacity of a 95 sqmm cupper under ground cable laid partialy in land and partialy in ground?