Question { 7294 }

why generating voltages are of 11kv 33kv 22kv of 11 multiples

Answer

as we know our form factor is 1.11 so the generating and
transmitting voltage is multiple of it or near to multiple
of it.

Question { 3974 }

Difference between divercity and power factor

Answer

Diversity Factor:- it is the ratio of some of individual
maximum demand on plant to the maximum demand of it.

Power Factor:- it is the ratio of real power to the apparent
Power. (V.I.CosPhi/V.I.)

Question { 4886 }

DRAW THE DIFFERENCE BETWEEN GROUND AND NEUTRAL IN BOTH
SINGLE PHASE AND THREE PHASE?

Answer

single phase and three phase system both have the same
difference in between ground and neutral.
Neutral is the return path. ground play as safety wire while
excessive current flows through the system.

Question { SPML, 4941 }

What is hysteresis loss?

Answer

Hysteresis loss is a kind of iron loss=K*f*phi^1.2
where k=hysteresis constant
f= frequency of supply
phi= maximum flux density in core material

when magnetic material is subjected to magnetic field it is magnetized again if we remove the magnetic field the magnetization of material does not become to zero it is because of some magnetic domain remains aligned in the
direction of magnetic field.
so the additional energy is required to remove that
magnetization and dissipate as heat which is called as
hysteresis loss

Question { Powergear, 5178 }

how to find number of run for transformer & alternator
secondary side? give the example.

Answer

in transformer we have an equation N1/N2=V1/V2
if we have the value of N1,V1,V2 then we can easily calculate
secondary terns and there is no any secondary winding in
alternator

Question { 3388 }

Construction of ac motor?

Answer

first you decide which type of ac motor it is?