Answer / sroy

electrical and eletronic choke both regulate the current
flow to the lamp....whereas starter is not required in case
of electronic one. it saves energy as the ac period of
current is shorter than relaxation time required to
deionize the mercury atoms. in electrical choke ions will
have to be reionized ,,but in electronic they dont allow it
to settle down and hence requires less energy

what is the earth resistance ?

5 Answers   Bhel, Cummins,

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i have 400/230v transformer and didnt done the neutral eatrhing. i connected one lamp to one phase and neutral to the earth. but the lamp is not glowing. again i connected neutral to earth and repeated the same. then the lamp is glowing. in the first condition i tested with a line tester also, at that time the tesrer is glowing what is happening i dont know can any one help me?

1 Answers  

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why we somewhere use ryb phase sequance, somewhere use uvw, and somewhere abc??

4 Answers  

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How to calculate transformer capacity requirement for a project site?

5 Answers   ABB,

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what should be the spaciing between street lights designed for a manufacturing location. any IS codes?

0 Answers  

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Instead of single phase(220), if apply Phase to phase supply (eg: for lighting fixture). what will be the power formula? what will be the volt and current value? please explain me with some example.

1 Answers  

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What are the limitations of Kirchoff's laws?

0 Answers  

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hi this toufik here. i am doing my b.e.degree.now i am in final year and supposed to do a project in this year so i thinking to control the buchholz relay using software base means checking the status of transformer oil using microcontroler, plc or scada. so can i do so...??? alz suggest me...

2 Answers  

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which has more heat effect(dc or ac)

4 Answers   CCEL, TATA,

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what is the difference between AHU and FCU .

1 Answers   JLL,

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what is different between buchhoz relay and pressure relife devices in transformer

2 Answers   Spanco,

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what is the difference between ac and electric

1 Answers  

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