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 4676The 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 3078In winding design, the angle of chording (β) is nearly equal to A 45 degree B 60 degree C 30 degree D 90 degree
1 6494Squirrel cage induction motor has constant A slip B stator current C rotor resistance D speed at all load
1 2478in 33/11kv stepdown transfomer, transformer will stepdown to 11kv & remaining 22kv where it will go..
3 4898what is the difference between single core,three core,three and half core and four core, and where it can be used ,
1 2751which of the following loss varies with the load a)hystresis loss b)eddy current loss c)copper loss d)core loss
2 4097Frequency of rotor emf in induction motor is around A same as stator frequency B 50% C 5 % or below D 30%
Bhel,
1 3646Frequency of rotor emf in induction motor is around A same as stator frequency B 50% C 5 % or below D 30%
1 2002Slip at maximum torque depends on A rotor resistance and reactance B stator reactance C load current D stator resistance
1 1929Calculate 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
4325Induction generator has = A negative speed B negative slip C negative voltage D negative current
2 2884Magnetizing current for induction motor compared to transformer is= A equal B more C less D depends on load
1 2153Stator core loss of squirrel cage induction motor compared to rotor core loss is= A equal B more C less D depends on load
2 3503Post New Electrical Engineering Questions
sir please send me previous year questions of jspl of electrical section through which i could prepare myself fpr the test.
Sir, I have applied for the of Jr.engineer(Electrical & Electronics) & ASST. LOCO PILOT at ALL RRB BOARDS. please send me all RRB Boards solved papers in the year of 2001 tO till date. i requested send me the papers to my id as soon as possible (jet_0991@yahoo.com). (This is very urgent) Thank You,
what is ground fault in ACB?
Why line VTG = √3 phase VTG in star? How?
What effect does a very low impedance have on the Voltage regulation? On the short-circuit current?
block diagram of 2 ups system connected in hot stand by mode?
What is the simplest formula to calculate the rotor diameter of a synchronous generator?
What happens when two positively charged material is placed together?
what is the correct method for the outdoor termination of 19/33 KV HT cable step by step?
How to select the earthing transformer,for DELTA TO DELTA TRANSFORMER OR ALTERNATOR SIDE.Pls post your answers and calculation.
How will calculate losses in an multi core Aluminium LT cable of different sizes & upto what length we can use a LT Cable ?
Draw a 230kv two-bus bar system showing the following. 1.Two generators (150MW) each connected through one 15.75/230KV transformers 2. 1 outgoing lines 3. Two 230/130 KV transformers 4. BUS PT's 5. CT
what is the main function of capacitors in mccs.
What is K-rated transformer? What is the use of it? What can be the size(pls provide calculation if possible) of K- factor transformer for 550kW,690V motor operating with drive (VFD)?
How much earthing frequency is capable?
