ALLInterview.com :: Home Page            
 Advertise your Business Here     
Browse  |   Placement Papers  |   Company  |   Code Snippets  |   Certifications  |   Visa Questions
Post Question  |   Post Answer  |   My Panel  |   Search  |   Articles  |   Topics  |   ERRORS new
   Refer this Site  Refer This Site to Your Friends  Site Map  Bookmark this Site  Set it as your HomePage  Contact Us     Login  |  Sign Up                      
Google
   
 
Categories >> Engineering >> Electrical Engineering
 
 


 

 
 Civil Engineering interview questions  Civil Engineering Interview Questions (3157)
 Mechanical Engineering interview questions  Mechanical Engineering Interview Questions (3309)
 Electrical Engineering interview questions  Electrical Engineering Interview Questions (13491)
 Electronics Communications interview questions  Electronics Communications Interview Questions (2396)
 Chemical Engineering interview questions  Chemical Engineering Interview Questions (424)
 Aeronautical Engineering interview questions  Aeronautical Engineering Interview Questions (77)
 Bio Engineering interview questions  Bio Engineering Interview Questions (17)
 Metallurgy interview questions  Metallurgy Interview Questions (80)
 Industrial Engineering interview questions  Industrial Engineering Interview Questions (166)
 Instrumentation interview questions  Instrumentation Interview Questions (2409)
 Automobile Engineering interview questions  Automobile Engineering Interview Questions (109)
 Mechatronics Engineering interview questions  Mechatronics Engineering Interview Questions (39)
 Marine Engineering interview questions  Marine Engineering Interview Questions (45)
 Power Plant Engineering interview questions  Power Plant Engineering Interview Questions (82)
 Engineering AllOther interview questions  Engineering AllOther Interview Questions (1211)
Question
how tubelight circuit is connected and how it works?
 Question Submitted By :: Electrical-Engineering
I also faced this Question!!     Answer Posted By  
 
Answer
# 1
A choke is connected in one end of the tube light and a
starter is in series with the circuit. When supply is
provided the starter will intrupt the supply intermittant
cycle of AC. Due to the sudden change of supply the chock
will generate around 1000volts . This volt will capable of
to break the electrons inside the tube to make elctrone
flow. once the current passess through the tube the starter
circuit will be out of part. now there is no chande of
supply causes chocke voltage normalised and act as minimise
the current.
 
Is This Answer Correct ?    148 Yes 26 No
Ramesh Pachamal
 
Answer
# 2
A fluorescent light does not have the usual glowing
filament of an incandescent bulb, but instead contains a
mercury vapor that gives off ultraviolet light when
ionized. The ultraviolet light makes particles that coat
the inside of the tube, and these particles glow or
fluoresce (see How Fluorescent Lamps Work for details).

Fluorescent starters are used in several types of
fluorescent lights. The starter is there to help the lamp
light. When voltage is applied to the fluorescent lamp,
here's what happens:


The starter (which is simply a timed switch) allows current
to flow through the filaments at the ends of the tube.
The current causes the starter's contacts to heat up and
open, thus interrupting the flow of current. The tube
lights.
Since the lighted fluorescent tube has a low resistance,
the ballast now serves as a current limiter.
When you turn on a fluorescent tube, the starter is a
closed switch. The filaments at the ends of the tube are
heated by electricity, and they create a cloud of electrons
inside the tube. The fluorescent starter is a time-delay
switch that opens after a second or two. When it opens, the
voltage across the tube allows a stream of electrons to
flow across the tube and ionize the mercury vapor.

Without the starter, a steady stream of electrons is never
created between the two filaments, and the lamp flickers.
Without the ballast, the arc is a short circuit between the
filaments, and this short circuit contains a lot of
current. The current either vaporizes the filaments or
causes the bulb to explode.
 
Is This Answer Correct ?    36 Yes 5 No
Mohit Sharma
 
 
 
Answer
# 3
a choke is connected in one end of the tube light and a
starter is in series with the ckt. when supply is provided
the starter will interrupt the supply intermittant cycle of
ac.due to the sudden change of supply the chock will
generate around 1000 volts. this volt will capable of to
break the electrons inside the tube to make electron flow
.once the current passes through the tube the starter
circuit will be out of part.now there is no chance of
supply causes chock voltage normalised and act as minimise
the current.
 
Is This Answer Correct ?    33 Yes 14 No
Dillip
 
Answer
# 4
Connection: The phase connnected to the one terminal of the choke and getting series connection from another terminal of chocke..choke's output connected to any one of the lamp holder's first terminal and get series connection from another terminal of that holder..then the starter connected series with first holder's output and second holder's any one of the terminal..after that neutral is connected to free end of 2nd holder..

Working:
choke is used to get high voltage for produce electron between filaments and mercury combination..at the time starter working as a switch..when the light illuminates then the starter disconnected due to inefficient voltage..(at the time flourescent acting as a starter)
 
Is This Answer Correct ?    3 Yes 1 No
Yuvaraj
 
Answer
# 5
tube light connected sires supply 230 volt single phase
phase terminal connect switch to choke one end terminal
other terminal connect tube light one end 1st terminal other
connect the stater sires tube other side pin terminal last
terminal connect the nuteral terminal


Working:
choke is used to get high voltage for produce electron
between filaments and mercury combination..at the time
starter working as a switch..when the light illuminates then
the starter disconnected due to inefficient voltage..(at the
time flourescent acting as a starter)
 
Is This Answer Correct ?    3 Yes 1 No
Ramesh Gm
 
Answer
# 6
look i feel mohits answer is correct so u can follow it 
Is This Answer Correct ?    2 Yes 2 No
Manisha
 

 
 
 
Other Electrical Engineering Interview Questions
 
  Question Asked @ Answers
 
What are the types of Transformer? Name them. HSL 9
why transformer is rated in KVA ?   4
How can be decreased the size of transformer?   6
what is the difference between H.T Or HV lines...?   1
what is different between auto transformer and vriac   4
check list for anuval maintatince check list of oil transforms   2
Is this possible to synchronize the two different ratings of dg   1
what is direct dischage of power transformer   1
6.6 KV /.415KV Step down trf. we can get 6.6 KV from primary by applying .415 KV secondary side by same TRF. Suzlon 3
why crgo core is used in transformers? TATA 5
How can i calculate heat load ? NSN 3
can I connect step down transformer(25KvA,240V Phase to phase)to output of online UPS(15KvA,440V PHASE TO PHASE) Load connect to TRANSFORMER is 13KvA,240V PHASE TO PHASE. please brief if it is wrong DRJ-ARDE 1
 
For more Electrical Engineering Interview Questions Click Here 
 
 
 
 
 


   
Copyright Policy  |  Terms of Service  |  Articles  |  Site Map  |  RSS Site Map  |  Contact Us
   
Copyright 2013  ALLInterview.com.  All Rights Reserved.

ALLInterview.com   ::  KalAajKal.com