GIVE CONDITION FOR MAX EFFICIENCY OF 3-PH TRANSFORMER AND
D.C MOTOR
Answer Posted / manoj tyagi
for electrical machines max. eff.
veriable ohmic losses=constant core loss
| Is This Answer Correct ? | 16 Yes | 4 No |
Post New Answer View All Answers
why need to be maintain power factor for industrial customer?
apti mainly on logical reasoning, verbal and non-verbal ability (70 percent) and remaining technical. I was in ee but technical had mech ques like on turbines and welding.
sir am giving jspl exam on 19th oct . i belong to eee, so plz send previous question papers ..........to dis id abhilash203@gmail.com
Different STANDARDS (BS, IS, IEC etc) gives different informations on CT specification. How they correspons w r t each other (i.e I mean to say BS provides "knee point voltage" but IS does not, then how can i select CT)
which one is more efficient, torq, power & ecnomy with the same frame size AC motor / DC motor?
What is true sine wave or pure sine wave inverter?? Is it sine wave or step wave?? If it is step wave, waves with how much step is considered as pure sine wave? Is it possible to produce pure sinewave using power electronics?
how to calculate the capacitor to maintain power factor?
what is the difference between 4pole & 6pole DC Motors & give advantage ?
How i can decide that HVDC line is best for transmission.
i am in need of AC SYNCHRONUS MOTOR 30KW. ANY ONE KNOWS THE MANUFACTURER OF SAME. ALSO MOSFET AC CONVERTER 20KVA CONT.OUTPUT.
How can we measure the residual voltage in dc machines?
what is the role of energy meter in distribution system ?
Could you measure voltage in series?
can u tell me the promotion from oiller to enginer
how hazordious area is classified at an oil & gas plant and categorise suitable class of electric equipment in that area like induction motors, LCS, Lighting Fixtures Fluerescent/Flood lights Mercury& sodium lights, J.Bs, Power Cables etc