what is the purpose of starter in tube light?what is it
operation .
Answer / rabi
When starting the lamp, a glow discharge will appear over
the electrodes of the starter. This glow discharge will
heat the gas in the starter and cause the bi-metallic
electrode to bend towards the other electrode. When the
electrodes touch, the two filaments of the fluorescent lamp
and the ballast will effectively be switched in series to
the supply voltage. This causes the filaments to glow and
emit electrons into the gas column by thermionic emission.
In the starter's tube, the touching electrodes have stopped
the glow discharge, causing the gas to cool down again. The
bi-metallic electrode also cools down and starts to move
back. When the electrodes separate, the inductive kick from
the ballast provides the high voltage (about 1 KV) to start
the lamp.
Is This Answer Correct ? | 7 Yes | 0 No |
What are the weight of 800KV DA,DB and DC type tower ?
How many types of isolator is available for H.T.lines? which one is best for sub-station?
What is the allowalable frequency variation in India and in US? Why there is the difference?
what is negative,positive abd zero sequence current explain clearly
why the frequency and voltage in india is 230v and 50HZ. when compared to USA say 110v and 60 HZ.
How to check the Bushings of the transformer?
I have 11KV/415V power distribution transformer. I have found unbalance current in LT (415V) side. Also observed that unbalance voltage (3V) at LV side due to HV side unbalance voltage. What should I check for this? Also, the same LV side load can run in balance on captive power.
How much area is covered by a single lightning arrestor to protect object from lightning strokes ?
1)what is hypo test. 2) which cable need to hypo test.3) when hypo test can be done before or after glanding.4) what is the purpose of hypo test.
primery try cell?
what is the voltage between earth & neutral in 3 phase electrical connection.
0 Answers Megatron Solutions, SIPL,
While testing LA mast,What are the parameter limits ?