Answer Posted / deepak yadav

chock works as blast in a tube circuit,it give surg voltage(1000v) to circuit which is sufficiant to ionise the gases in tube it only works at starting of tube.

WHAT SHOULD BE THE BEST CURRENT RATINGS (PRIMARY / SECONDARY)FOR A CT INSTALLED AT THE INCOMING 11KV PANE? WILL IT BE CALCULATED ON THE BASES OF MAXIMUM DEMANT VALUE OR ON SUM OF ALL TRANSFORMER'S KVA? NOMALLY MAX DEMAND REPRESENT THE MAXIMUM OPERATING LOAD OF THE PLANT AND TOTAL KVA OF (SAY 5 NUMBERS TRANSFORMERS) REPRESENT THE CONNECTED LOAD. WHICH i.e. MAX DEMAND KVA OR CONNECTED KVA ARE BETTER TO USE FOR CT CURRENT CALCULATION? PLEASE ANSWER.

1858

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what do u understand about FACTS? how they are useful?

1922

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If 100 KAV USP dedicated earth got disconnect / Cut. What will happen at load.

1898

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In DC generator, we use commutator, having no. of segments. Then how it is possible to get a half wave of voltage and current for half rotation of armature?

1953

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Why choke coil is connected in series with starter in tubelight??why starter is connected in parallel to tubelight??

3321

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1055

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hi can any body send me syllabus of rrb electrical section engg... and past pepar also of any board...

2614

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Explain and give examples about VCB?

3263

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2230

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1087

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4714

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1784

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1451

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how to test power transformer.YNd11

1516

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How halogen & merquery lamp works.

2105

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