what is the function of starter & choke in the tube light
set & how choke give 1000 volts while switching on.
- 14 Answers
- 82190 Views
- ADNOC Abu Dhabi National Oil Company, IBM, I also Faced
- E-Mail Answers
Answer Posted / soumitra debnath
When the switch is pressed current cannot pass through the tube initially because the gas inside it is not ionized and hence the tube light circuit behaves as open circuit. Once the gas is ionized, it will provide a conduction path for the current to flow. In order to ionize the gas, an initial high voltage of 800-1000 V is required for a short period across the filaments of the main tube. A starter initially provides a path to complete the circuit and once tube light starts the current flows through the ionized gas in the main tube.
Now we know that voltage across inductor E=L*di/dt.when ac switches from positive half cycle to negetive half cycle,magnetic flux changes its direction as well as magnitude and according to farady's law it will produce a large voltage accross inductor and so across the electrode and producing a voltage strike of 800 to 1000v and thus heats up(ionise) the gas.
| Is This Answer Correct ? | 11 Yes | 2 No |
Post New Answer View All Answers
What is primary and backup protection?
How to calculate the phase to phase clearness of HT /// LT bus bar?????
I am getting above 60 V as open delta voltage against single phase unit ICT at tertiary delta formed and ICT getting trippped on NDR. ICT tested and found in order. PTs provided on tertiary are tested and in order. what may be the reason?
what is EIB lighting control system? what is the advantages of this system?
What is 11 N1 and 12 N2 in single phase Transformer ?
Which type of motor is used in trains, what is the rating of supply used explain working principal?
neutral earth resistance testing is it possible for transformer while in load condition
What is the difference between amorphous core transformer and CRGO core transformer?.
When calculating the speed of a rotor required for a particular frequency of synchronous generator we use the equation 60f/p Is this p is the number of pole pairs of rotor & do we consider the number of pole pairs in the stator is 1?
what is parellel power factor correction?
What are the difference between normal application Transformer and Solar application Transformer?
what is the chiller and working principal
What is the difference between the impedance percent and impedance voltage ?
What are gain margin and phase margin?
why 3 phase is converted into 2 phase using electronics circuit why not 2 phases are diresctly putted from the 3 phase transformer??
