Answer / ashok

to produce a instantaneous high voltage to ignite the
tube.because tube has no filament ,it has only a gas inside
it . to ionize the gas tube need high voltage at starting.

Answer / sushil259

Actually, we all know that emf is induced in a inductor
whenever there is a change in current as per relation
e=Ldi/dt. so as we require high voltage approx. 600V to
start ionisation in the tube light, we change current with
the help of starter which helps in building voltage across
choke and when ionisation gets started, starter short
circuited and choke supply now is reduced tp approx 110V
which is required to light up tube. if normal supply i.e.
230V is given directly to the tube it will burn.

Answer / ramanjaneyulu

to produce instantaneyosly high voltage i.e 1100v then the
tube will glow the voltage will be redused to 110v

Can any body explain the operation system of MVWS(May be related to water and fire hydraunt system)?

2 Answers   TATA,

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In the case of petrochemical area AC drive & AC motor is used where the speed variation is required. Why they are not Using DC drive & DC motors in such areas?

1 Answers  

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TRANSFORMERS WITH DC SUPPLY

0 Answers  

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I have a one P.F meter in my factory showing 2 phase leading and one phase lagging then what is my actual P.F.

1 Answers  

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What makes the difference between 50Hz supply and 60Hz supply which one is economical? What is the use of using increased frequency?

5 Answers   ABB,

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wht do u mean by constant flux linkage theorem ?

3 Answers  

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Is it possible to measure the voltage of a battery from a single terminal?

0 Answers  

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why m and c are shorted in wattmeter

1 Answers  

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What does the term power factor shows?

0 Answers  

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what is difference between fuse and circuit breaker?

4 Answers  

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what happens if a carbon brush is touching the top end of the commutator

2 Answers  

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How to determine alternating current frequency?

0 Answers  

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