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 .

When the relative speed between the magnetic fields of stator and rotor does is zero under steady state operation?

0 Answers   HPCL,

the cheapest inducting instrument among all is a)pmmc b)moving iron c)electrodynamometer d)rectifier

2 Answers   APCPDCL, APEPDCL,

What are factors to be considered while we selecting the Core Balance Current Transformer for Earth fault protection

0 Answers  

if 15 kv is grounding directly what will happen?

5 Answers  

what is mean by dual digital protection in the relay field?

0 Answers   ABB,

What size cable (based on voltage drop) is required to supply a 40 A three phase boiler if the wiring system is 75V single insulated cables installed in non-metallic rigid conduit 56m from the main switchboard? Voltage drop in the consumer's mains is 8V.

0 Answers  

basic differance between electrical and electronic.

1 Answers   Jindal,

WHAT IS NORMAL VECTOR GROUP USED FOR DESIGNING OF TRANSFORMERS??

0 Answers  

Sir, plz tell me how droop setting is done in parellel operation od DG set ? please give practical example ?

0 Answers   Honda,

For fixed primary voltage how does secondary terminal voltage of a transformer change if the pf of inductive load is raised from 0.7 to 0.9 with load current remaining fixed ?

1 Answers   GATE,

Any link for Electrical objective type questions ?

0 Answers  

Questions :- HR- Q.1 about yourself & family background ? Q.2 Why u choose Power sector as ur carrier starting not any other sector ?? Q. 3 What think abt NTPC ? Techincal Questions:- Q.1 about Vocational Training……What u did , see the main equipments….etc Q.2 Why a transformer Noise during its running condition ? Q.3 about transformer oil material & Test name for the measurement of its dielectric strength & wht will u do if its dielectric strength goes low ? ……..some discussion type ? Q.4 What is relation between transmission lines & Communication lines ? Q.5 Which Machine u will prefer to use at a place where flammable gases are coming out & why ? Q.6 how fault in an electric system is detected & hw protection of equipments is done ? Q.7 Why we didn’t feel electric shock in an electric train ?? Q.8 Anything u want to ask from us ??

44 Answers   Akona Engineering, Bhel, BSES, Cranex, DRDO, JCB, NTPC,