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

in breather of transformer how sillicon gel absorb the moisture?wat happen when the moisture in that oil?

1 Answers  

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in alternator why on load terminal voltage is less than no load teprminal voltage

1 Answers  

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if we connect a ohmmeter across shorted capacitor .what will be the reading..will it be zero or infinity

2 Answers  

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what is sevice settings for mccb?How can be it setted?

0 Answers  

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What is the emf equation of a transformer?

0 Answers  

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what is the meaning of 16/20 mva of transformer

7 Answers   JSW,

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How to calculate the multiplying factor for energy meter with ct ratio given

0 Answers  

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if vcb make contact but output notreach give the reason?

2 Answers   VVF India,

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in gen traf what is ONAN , ONAF , OFAF and DYN

3 Answers  

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i have some screw comprressor with 630kw power,i have established them with simple star to delta circuit,by the way there is so much inertia when the screw comprressors start, can you offer me contactors power with 400vac or any cataluge to choose the contactors

0 Answers  

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why are transformer rating in MVA

2 Answers   Suzlon,

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can we use inductor in case of d.c.,if yes then what will happen in circuit

3 Answers   JSW,

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