Answer / hafeezulla

i accept all

Answer / satyendra singh chauhan

Choke (ballast) produces around 11000v at starting time of
flourecent tube to move the electrons from flements of two
sides for closing of circuit. after that tube will glow on
around half of the supply voltage.

Answer / priya

choke is a circuit element used to limit the flow of
alternating current without affecting the flow of direct current

Answer / rishabh dubey

Choke(Ballast)provide a High voltage which is required for
ionisation of particles og tube light(approx.)-600 volt and
after this limit the current

Answer / ramanharikrishnan

Choke (ballast) produces around 11000v at starting time of
flourecent tube to move the electrons from flements of two
sides for closing of circuit. after that tube is blowing
with 230 V.

Answer / vijayalakshmi

choke is coil which ignit the arc between the two electrode

Answer / rajeshwar

choke is highly inductive , so it opposes any sudden change
of voltage .
At start it stores electrical voltage and passes it with
high amplitude within sec(1000-1200V) for ionisation of
gases in tube bar .

what is advantage of providing taping on HT side?

4 Answers  

What is the difference between cylindrical-type and sandwich-type winding?

0 Answers  

hi.. i am krishna. i've complide my diploma engg.in electrical.i applied many places for jobs.but i am always fear from written test.ican't get success in it. i think my basic engg. is weak..show me some idea please..!

5 Answers  

why zero sequence impedance measurement is not applicable for single phase GT

0 Answers  

what is reactive power?, why its measured in VA ? is it transient behavior of system?

0 Answers  

I have two AC generators, the first rated 2680KVA for 380V/4345A/pf:0.7 and the second rated 3461KVA for 5500V/363A/pf:0.8. I want to parallel the two generator to a bus. The second generator passes through a transformer to down the voltage to 380V and a part of its power goes to another bus so that it's only a part of the total power of the second generator taht goes to the considered bus. I have two Basler DECS100 AVR regulator. How can I make the synchronization ? What others equipments must have ?

1 Answers   CST,

In simply words(not explain any formula )what do you mean by power factor.?

5 Answers   DRDO,

What is the Good Earth resistance value of G.I & Cu. Chemical Earthing & Normal Pipe Earthing?

0 Answers   ABC, Reliance Life Sciences, TCS,

how to decide cable rating? send me cable size,ampere rating data

2 Answers   Bhel,

WHAT IS MEANT BY TV TERMINAL IN 500MVA TRANSFORMER?

0 Answers   KPRS, L&T,

At 765Kv, I have seen the use of PT at line side for metering and CVT for protection, although as far as my knowledge is concern, PT at this voltage level will have huge loss and more cost as compared to CVT as CVT can also perform same function of Protection and Metering? So my question is why use PT and not CVT for metering and protection in order to reduce the cost.

1 Answers  

Describe: Energy efficient motors

1 Answers   Reliance,