What is the purpose of starter and choke in tube light?
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
what are problems caused by the pdu in rack server
What type of a DC motor would you use for a lift?
HOW CAN I GET 5CORE HO7 CABLE SIZE IF I HAVE 1800A?
List the characteristics of filter?
What is the practical way to calculate the cable size for known ampere load?
can anyone please help me to find the rupturing or breaking capacity in KA of circuit breaker (MCCB,VCB,ACB etc) of HT and LT side of a distribution transformer...please help with detailed step by step answer...thank you
when it is possible kvrah lead & fundamental kwh be equal in electonic trivector meters (3 ph)
What is touch potential and step potential?
how we can explain arc heatng?
Can we use 230VAC, 63A MCB for 120VAC, 63A supplied heaters load?
hi this is hema, r there any books in particular for the preparation of the APPSC-A.E.E(electrical), if so please mail me the names ... thank u .
I completed my BE EEE degree 2006 .... which license should i apply .... ?????
how will calculate the safe starting current of 3-phase squirrel cage induction motor?
types of central Air conditioner plant?
Difference between transition and diffusion capacitance