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In scott connected transformer number of turns in the primary winding of teaser transformer is % of number of primary turns of main transformer A 86.6 B 57.7 C 14.4 D 33.3
1 5350The mechanical angle is electrical angle A always less than B greater than or equal to C equal to D less than or eaual to
1 4070In winding design, the angle of chording (β) is nearly equal to A 45 degree B 60 degree C 30 degree D 90 degree
1 7320Squirrel cage induction motor has constant A slip B stator current C rotor resistance D speed at all load
1 3200in 33/11kv stepdown transfomer, transformer will stepdown to 11kv & remaining 22kv where it will go..
3 6156what is the difference between single core,three core,three and half core and four core, and where it can be used ,
1 3502which of the following loss varies with the load a)hystresis loss b)eddy current loss c)copper loss d)core loss
2 5076Frequency of rotor emf in induction motor is around A same as stator frequency B 50% C 5 % or below D 30%
Bhel,
1 4427Frequency of rotor emf in induction motor is around A same as stator frequency B 50% C 5 % or below D 30%
1 2685Slip at maximum torque depends on A rotor resistance and reactance B stator reactance C load current D stator resistance
1 2603Calculate torque developed by the 3-phase, 5 H.P., 4 pole induction motor runs at 1500 rpm A 23 N-m B 21 N-m C 10 N-m D 0 N-m
5206Induction generator has = A negative speed B negative slip C negative voltage D negative current
2 3896Magnetizing current for induction motor compared to transformer is= A equal B more C less D depends on load
1 2976Stator core loss of squirrel cage induction motor compared to rotor core loss is= A equal B more C less D depends on load
2 4507Post New Electrical Engineering Questions
Who are the manufactures those manufacturing 3Cx2.5sqmm FRLS cables. I heard about FRLS technology adopted only in wires useful for wirings
it is possible to rotate the DG engine dc starter with wrong polarity connections? why?
Why 30kw 40 hp 4 pole 3ph induction motor over heated?any steps on reduction in heat?
Do inductive loads have distorted current waveforms ?
I am designing new project sub station with 220 kV / 11 kV, 40 MVA capacity. This project have many recifier sets, which can generate 3rd harmonics. Now I have to select vector group of This transformer. To minimise 3rd harmonics, what care should I take in selection of Transformer Vecrtor group? If it is Y-Y with open Delta tertiary then what should be the rating & voltage of Tertiary Winding?
How to reduce the static electricity producing in solvent room? By P.D.Patil BioCon
What should be the Sandwitch type Al. bus bar capacity for 2 M.W.Gen. set, having continuous full load current- 3463 Amps,ambient temp.- 50 Deg. C., Required temp. raise-20 deg.C., it will run 24 hrs, 365 days on full load, required highly reliable.
If anyone would like to know or practice for FEWA papers contact me on mohamedrashad2@hotmail.com Just completed the supervisor exam in April 2021
How to discuss the phase shift of transformer considering open delta?
What is a differential amplifier?
What do you mean by a voltage transformer?
how to calculate the change over time for star delta starter for different KW motor?
1600 KVA ka transformer hi aghar lt side par 800A aur voltage 420 ho to HT side ki cable ki rating keya ho gi?
What are the functions of different probes used in cro?
why asa method ZPF method is more accurate than ASA method?
