Interested to Buy Any Domain ? << Click Here >> for more details...
What is the purpose of starter and choke in tube light?
- 9 Answers
- 112991 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
How short circuit MVA(Fault MVA) in a power system calculated for calculating number of earth plates ?
how can check the resistance of battery contact?
What is resonant frequency?
does a DG set has low fault level as compared to that of a transformer.If yes then why.
Shall I use 40A semiconductor Fuses in 32 A SFU ? Frame size is same. What Happen if Fuses burn on SFU?
What type of a DC motor would you use for a lift?
What type of wiring series or parallel is used for conventional and addressable type FAS & why?
describe the phenomena of vacuum interruption in C.B
what is the purpose of high speed earth switch in gas insulated substat
when measure the core loss of three phase distribution transformer or three phase reactor loss, one phase shown negative watt loss. why??
Terminal blocks is used for segregate the connections... There is any principle for terminal block..?
DG Earth Value?
How much load can take a 16 mm aluminum cable 3 phase
can i use the six sigma method which is used in management area, in state estimation of power systems?
what is the calculation involved to design the heater to heat 10KL of water in temperature control unit?
