Answer / sanjna

IGBT,FET,MOSFET ARE CURRENT CONTROL DEVICES
BJT,DIODE,UJT ARE VOLTAGE CONTROL DEVICES

how to calculate no. of earthing pits and their diamensions? no. of lightning arrester rods which are required to protect a building of 35 mtr and we calculate?

5 Answers   Dharampal Premchand Limited, FlowMore, Hindustan Zinc, Ispat, Maheshwary Ispat, NDDB, Siemens,

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3phase cable calculation formula by motor load

0 Answers  

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what is the difference SCR & TRIAC?

13 Answers   TCS,

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Wat is meant by OLTC?

1 Answers  

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what is meant by the phrase 'static load' in case of shorting in a generator excitation system?

0 Answers  

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What is fault level? How can be calculate the fault level?

1 Answers  

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what is the principal of star delta starter?

9 Answers  

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why in transformers voltage given is in the multiple of 11

3 Answers  

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what happens when ac supply is given to the dc motor and dc supply is given to the ac motor?

1 Answers   GATE,

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what is the differance beetwen installation and errection ?

1 Answers  

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can anybody tell me that for p.f. Improvment we use capacitor banks but how to decide its capacitance. As we all know how to calculate kvar but what abt capacitance value

0 Answers  

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1.what is the contact resistace of CB ? 2.radioactivity should be mesured with---------?

3 Answers   Power Grid,

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