Answer / thowsif_emerson

An electrical ballast (sometimes called control gear) is a
device intended to limit the amount of current in an
electric circuit.

The SFC of an engine is 0.25 kg/kW hr. when the fuel used has a calorific value of 36000 kJ/kg. the thermal efficiency of the engine is

0 Answers   Caterpillar,

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To avoid arcing what we connect in earthing.

4 Answers   HAL,

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sir, how to select the cable size, what is the parameters use ang what is the formulas use for this cable size calculations. please tell me.

4 Answers   ISRO, Power Grid,

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why phase plates are used in transmission line????

1 Answers  

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why we use REF and Differential Protection in one transformers?my doubt is both protections are operated in internal fault only.why we want to use 2 protections?please clarify.

7 Answers  

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Why in India only 50hz frequency not 60hz

2 Answers   Prism Cement,

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Can RCD's used to protect the VVVF drive if not why.

0 Answers  

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why the carbon brushes are broken in srim while the motor runningtime

0 Answers  

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the process cynide is used for?

2 Answers   MAHINDRA,

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A 30KW motor running at 1450 rpm draws 56A, how would you determine if this is correct or not?

3 Answers  

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How we can recongnise the phase displacement of transformer connection between primary & scondary...plzzz explain it with example.........

0 Answers   BOC,

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What is the difference of grounding and earthing?

6 Answers  

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