why transformers are put with supply for 24 hours before
giving supplying to a locality?
Answer Posted / aluko
it is to allowed the rush current to induce maximum flush in to the field for stability so that there will be not fluctuation in supply voltage to the locality due to in rush currents.
Is This Answer Correct ? | 0 Yes | 1 No |
Post New Answer View All Answers
How will polarity test of Dy5 Transformer ?
How do the synchronizing lamps indicate the correctness of phase sequence between existing and incoming alternators?
is it true there's a big difference in using Cummins or Denyo...especially power output or leakage
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,……..,?
How Load Factor, Demand Factor, Diversity Factor etc best applied in designing an electrical circuit? Is it allowed to consider these factors in each and every panel in an electrical distribution system? Can any body suggest a good book for reference?
what is the voltage regulation for unity and zero power factor?
Why HT 11 KV Slipring Motors are connected in star ?
What is critical disruptive voltage?
What is the drawback of class b amplifier? How is this minimized?
application s to shunt coil
Can the output voltage of a rectifier be greater than the input AC voltage without the use of any voltage multiplier in the circuit??please provide the explanation too..
what are the effects when a salient pole alternator is run at high speed like 3000 r.p.m?
What is earth?
What the difference between three phase contactor (coil 110vac) & three phase SSR (control voltage 110Vac)? May I use contactor in place of SSR?
What is resolution of a measurement?