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
Two liquids hot and cold in two vessels are there and an
metal bar acts as a conductor of heat between the two
vessels. what happens then. what happens after 24 hrs?
I have 800 Amps MG Fix type breaker It is in on line & it
has been given only UV (under voltage)coil connection for
tripping purpose.now it is not working properly means its
getting tripp so how can i replace it or how can i rectify
the problem without destrubing my load??????????
why we do 2 types of earthing on tranformer ie:body earthing
& nutral earthing , what is function.
i am going to instal a 5oo kva tranformer & 380 kva DG set
what should the earthing value
Thermal withstand capability under full short circuit
conditions, in terms of number of times of occurrence of
short circuit and corresponding anticipated percentage
reduction in transformer life.
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?
what is the effect of connecting three phase supply lines
to three phase auto transformer output terminals through a
fuse of 10Amp and a circuit breaker (MCB). Is this
connection permanently destroy the transformer?
31
what is differance between dirty earthing and clean
earthing and their applications
34
CAN U PLEASE TELL ME SOME G.D TOPICS FOR APGENCO
INTERVIEW&G.D
83
HOW DOES THE ELECTRONIC ENERGY METER WORKS?
29
How much energy save vfd if motor run on 50 Hz (full speed)
29
Why semi-conducting insulation is used in XLPE cables?
I have a shop heater with a 1/3 hp capacitor start,
induction motor driving the fan. Intermittently, the fan
motor speeds up significantly for several seconds (15-60
sec) then slows to normal operating speed. The manufacturer
suggested changing the capacitor which made no sense, but I
did it to no avail.
Could this possibly be caused by the centrifugal switch
intermittently reconnecting the start winding?
5
why secondary of open delta pt (two element pt) centre tap
is earth what happen when this earth is removed
which fault current is maximum: 3 phase short circuit, LG,
LL or LLG?? why??
in one of the problems that i have solved, 3 phase short
circuit current on an unloaded generator came out to be
less than the LG fault current. can anybody please explain
why.
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