kVA rating of open delta connected transformer is _____% kVA rating of delta/delta connection A 50 B 70.7 C 57.7 D 75.7

2 Answers  

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why buchholz relay is kept on inclined position and why it is cover??

1 Answers   GSECL,

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What is servo motor? what is its purpose?

0 Answers  

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Draw the vector diagram and condition for the following: 1) Dyn1 2) Ynd0 3) YnYn0

0 Answers  

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we have a 2000kva step down transformer at our site. The HT side is charged from 22000V. So the primary current will be 52.48A. So why the HT breaker(SF6 ABB) is rated of 1250Amps ?

2 Answers  

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what is impedence in transformer

2 Answers  

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Why relay connected R phase and B phase.?

1 Answers  

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what is the static device rather than xmer which work on same principle as xmer?

18 Answers   NTPC, Power Grid,

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In 110V DC supply,if a closed circuit gets open, How can we identify the voltage which is measured after the resistor(4KOhm) which is open with negative.it shows 55V +ve when measured, also the actual positive source is 55V +ve .Because there is no voltage drop in open circuit. How can we identify whether this is the voltage which is series with the resistor or the DC source direct +ve.

1 Answers   GE,

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What is gross error?

0 Answers  

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what is die electric strnth of transformer ?

0 Answers  

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can i use 10 mfd + 6 mfd instead of 15 mfd capacitor in single phase motor as running capacitor

3 Answers  

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