Question { 23819 }

The company is wiling to buy you 5 pcs of equipments in your
electrical tool kit. Plz tell what are the 5 things you want?

Answer

I would prefer 1)multimeter 2)clamp ammeter 3)adjustable
wrench 4) pliers 5) screwdriver

Question { 3736 }

why ceiling fan give hising sound

Answer

1)check the bearings
2) something is rubbing on to each other
3) there is a snake in the fan

Question { 5590 }

if i conncet ct with ct ratio of 600/5 to an energy meter
having ct ratio of 100/5, the reading show by the meter
will correct, if wrong is there any method to calculate
correct value with shown value, if yes please state
it.....

Answer

the reading would be incorrect. you can multiply the reading
by 6.to get correct reading.

Question { HCL, 4379 }

why the rotor is outside in case of ceiling fan?

Answer

It is a simple and cheaper and safer design to have the
rotating part of the motor perform its task.

Question { NNN, 4409 }

In power transformer tappings are provided on
A high voltage side B low voltage side
C In middle of both the windings D both high
and low voltage side

Answer

A) high voltage side.

Question { KSEB, 3416 }

IN THE CASE OF AN ELCB, IF THERE IS ANY UNSTABILITY BETWEEN
PHASE AND NEUTRAL IT MAY TRIP. BUT MY QUESTION IS WHEN A
LOAD IS CONNECTED IN BETWEEN P AND N, THE LOAD CONSUMES SOME
POWER AND THERE IS A DIFFERENCE IN NEUTRAL WITH RESPECT TO
THE PHASE. THUS ACCORDING TO ME, THE ELCB WILL AUTOMATICALLY
OPERATES WHEN EVER THE LOAD CONSUMES-- I KNOW IT IS WRONG.
BUT THE SOLUTION IS?????????

Answer

Maybe your understading of the elcb/ rccb is not true.Any load
consumed current is shared among the phases or and
newtral.that means what ever current that flows through the
elcb must flow out,there can be a difference only when there
is a loss, which means some of this current that had flowed
through are flowing out a different route,(leakage)if this
difference exceeds the trashold of the elcb/rccb than it
trips.