Assume a condition such that two motors of rating
6.6kv,415v are connected to blower,so tell me which motor
draw large current give appropriate reason?
NOW A DAYS THE POWER SUPPLY IS VERY LOW.SO THE FLURESCENT
TUBE LIGHTS ARE VERY DIM.IS THERE IS ANY WAY TO INCREASE ITS
BRIGHTNESS?FOR EXAMPLE ANY CONVERTER,CONDENSER?
for ac networks if the voltage wave form is V=Vm sinwt here
the voltage Vm=230 for the frequency 50hz then the time
period is 0.02 sec then for the time period 0.12 sec what
is the voltage
HAI SENT HPCL APTITUDE QUESTION PAPER, MY EMAIL ID IS
angus_eee04@rediffmail.com,angus_eee04@yahoo.com
50
iam preparing for rrb section engineer post in electrical
branch.suggest the right textbook for my
reference.fromwhere i will get the previous q.papers?
Electrical Diagram of Electric Arc Furance from transformer
to Furances
43
What is the basic principal, by which DC voltage level is
increased more than the supplied AC voltage during
conversion. As upto AC level it is contorrled by firing
anlge but after maximum level how is it possible.Please
clear picture. OR we have to supply the higher level AC?
21
How to calculate the cable size for particular load
In tranformer winding Connection Like Dyn1 ,so LV lags Hv
by 30 deg and Dyn11 LV lead HV by 30,so how do this lagging
and leading afffect the transformer??
97
If there is major % of Voltage harmonics in the system, how
can it be control or reduced?
29
can we connect transformer with star conected secondary to
delta connected primary in series?
38
Why different types of connection in transformers are used?
(star/star,star/delta,delta/star,delta/delta)Why we are
only taking in consideration of star/delta type
transformers? if only star/delta is good in practice where
doses other type of transformers are used? Note: i want to
know place of using different types of transformers other
than Star/delta type with brief description.
31
how define the torque in ac drive. from electrical side in
the drive friquency ,voltage and current three factor is
there.
41
battery capacity use of made?
22
send me any model test paper of clerical post of state bank
of india.......
32
how we calculate the dick for a pole?
6
There is air in a room . the top and bottom of the room are
at constant temp. T1 and T2. DRAW THE temp profiles if
a. T1 greater than T2
b. T1 less than T2
27
How to calculate the current rating of power cables ?
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