Answer / saquib

to induce high voltage (of the order of 1000 volts)at the
starting in order to start the tubelight glow .... &
to drop some voltage across itself such that around 140volts
is available across tubelight after starting

Answer / sakthinathan

choke is a device for inducing the high voltage

Answer / shehroz

chowk is an inductor it principle is lezs law .
lezs law state that the induce current in a coil or inductor
is perpendicular to its input current if current will lead
inductor will occur as a resistance and current lake it will
help it to lead

Answer / shujath

it is like small transformer of tube light to control the
power

Answer / vid ling

to reduce the wattage lose

We use MCCB not MCB for motor starters because MCCBs has capablity to drawout the motor starting current which is 5-6 times the full load current of motor for 1sec. Then why we use SDF in starter panel means MCC panels. Pls reply if any one knows this answer.

1 Answers  

what is purpose of using reactor in substations.

20 Answers   Heavy Engineering Corporation Ltd HECL,

WE ARE PLACE A NEW 75 KW MOTOR FOR JPF.IT IS CONNECTED IN M.C.C. WHEN WE ARE STARTING M.C.C.INCOMER IS TRIPPED.THEN WE ARE CONNECTED IN P.C.C WITH A MM30 RELAY PROTECTION THEN WE ARE STARTED MOTOR WILL RUN SMOOTHLY.

0 Answers  

what is the requirement regarding earthing of Single conductor with AWA

0 Answers  

I have lowered a submersible pump having 100 LPM discharge & 130 Mts. Head, 15 HP rating on borewell. After lowering 108 Meters, It is taking 39 amps & blowing the fuse. Can someone put light what is the cause behind it ?

1 Answers  

how many units (kwh) are there if in one MW?

5 Answers  

How do you calculate the actual power consumption of an inductive load appliance. Say, a deep freezer of 200watts

0 Answers  

How to select a cable size for particular load?

0 Answers   Amit Enterprises, Takasago Engineering, Techno Electric and Engineering,

What is shunt voltage and u v voltage witch one best

0 Answers   SEL,

why designer use kva rating instead of kw in transformer rating???????????????

9 Answers  

wat is meant by PX class in ct?

0 Answers  

what will happen at secondary side of transformer if i increase voltage at primary side?while V1*I1=V2*I2 will secondary voltage or current increase?

2 Answers