What is the purpose of starter and choke in tube light?
- 9 Answers
- 113497 Views
- Chimay Brewery, TATA, TSPL, I also Faced
- E-Mail Answers
Answer Posted / bobcat_rob_oman
The starter is used to have a high starting current just to
ignite or excite the fluorogas inside the tube, (to make
and break). then the choke is used to maintain the required
current needed by the gas to maintain its fluorescence.
This is becuase the supply is AC signal, (max-min-max min)
the choke will store energy during rising of current from
the source, then when the current is going to minimum
swing, the choke relesaes its energy therby giving current
to the lamp, until the next cicle again of rising current
from the AC source, it will store again energy in the form
of magnetic field. ( inductors are used for current
regulator- means it opposes change in current in the
circuit).
Try to use DC source and you dont need inductor anymore..
thatis why ballast are being replaced now by electronic
ballast, which is actually a rectifier circuit to output
stable DC current going to the fluorescent lamp. the
purpose of this is to eliminate the reactive power received
by the inductor ballast, which save extra KVA capacity of
the electrical system
| Is This Answer Correct ? | 44 Yes | 15 No |
Post New Answer View All Answers
please send me the L&T Emb. sys. placement papers and entire details of pattren
What current position are you holding in your current company?
Can Anyone Answer anyone of these ? Q1) why direct SOLUTION of Load Flow Studies in Not Possile ? Q2)Why majority of Buses in power system are load buses Q3)Why one of the buses in Power system is taken as reference bus (slack or swing) Bus ? Q4)Bus Admittance Matrix is a sparce (means it contains some zero elements ) matrix , give reason
I am going to appear RRB Sr. Section Engineer Exam, Electrical. Can you send me previous year questions of RRB Electrical engineer. specially Section Engineer questions. my email id is likerahulworld@gmail.com
Is it possible to measure correct value of earth resistance & cable insulation ristance with out disconncting earth lead & both sides of cable ends? If not, any other method to measure ER & CIR with out disconneting from the system.
can you please send me the technical questions and aptitude questions of honeywell and jindal steel electrical engg. question paper my e-mail ID is(kkesavanraj@gmail.com)
PLS SEND THE RRB CHENNAI MODEL QUESTION PAPER my email id is ganesan98655@rediffmail.com
PLZ sent the previous year question paper for GET in NHPC on my EMail id ppshanker@gmail.com
Why squirrel cage motor can only use with low starting loads ?
Enlist four components of electrive drives.
all the technical question with answers pleas send your email id ramar_eee@yahoo.com
i need the curve duty cycle and amper for (150 kva @50% dyty cycle) transformer turn ratio :19 and vin 400
hi frds, i m electrical engineer.can i get cdr for electrical engineer if u have then send me on my mail id its jayesh_ee88@yahoo.com.please help me frds
what is mean by restructuring power system?
hai friends i have BSNL JTO exam on next month so if any body have model question paper or give preparation tips to my mail id kumar4486@yahoo.co.in this will helpfull for my future .plz & thank u by kumar
