A transformer is used to light a 24volts,70watts lamp from a 240a.c main.The current in the main cable is 0.35A. Calculate, (1) The efficiency of the transformer. (2) the current in the lamp.

1 Answers  

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What is the correct procedure to shutdown VCB in 11kv substation.safety and work procedure

3 Answers   EGA,

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what happen if the battery is charged by more than one source ,for ex: connecting data cable to laptop & charger pin to source supply ? 

2 Answers  

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how the phase convertor changes the no. of phases

0 Answers  

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how the voltage between all the three phase is zero can any body explain me

5 Answers  

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why transformer rating is given in kva?

2 Answers  

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any body can give me idea or sketch of fuel(Diesel) level controller for genset.

1 Answers  

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What is deference between MCB & MCCB & ISOLATOR

0 Answers   Prakash Industries, Standard Chartered,

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what is conductor copnstant of ab cable

0 Answers  

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how set earth fault over current in relay

5 Answers   Jacobs, Reliance,

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there are 3 transformers each of 1500 kva and one transformer of 1000kva for a 11 floor building . total otgoing kw is 4066 kw. i need an extra 260 kw .is there any provision for that? what is the max kw that can be connected with these transformers?

2 Answers  

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anyone please send transformer parameter design formulas & details of tap changer ? plz i have interview this week its more helpful for me ?

0 Answers  

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