What are the basic & Majour problems in UPS ?

0 Answers   Roto Power, RotoPower,

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What is true sine wave or pure sine wave inverter?? Is it sine wave or step wave?? If it is step wave, waves with how much step is considered as pure sine wave? Is it possible to produce pure sinewave using power electronics?

0 Answers  

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Earth leakage relay basic knowledge principle

0 Answers   Radiant,

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what are the installation procedure of high voltage power transformer,CT,CB&PT?

0 Answers   Siemens,

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why tungsten is used in incandescent lamp instead of nichrome though nichrome has high melting point

2 Answers  

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what is difference between armoured cable and un armoured cable

2 Answers  

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What is difference between VCB and SF6 breaker

4 Answers  

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What is difference is of VSD,VFD,VSDS, are they the same as the direct current to control dc using above mention

0 Answers  

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Explain about c.t?

0 Answers  

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WHY EXCITATION OF SYNCHRONOUS MACHINE IS DC NOT AC

8 Answers   NTPC,

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0 Answers   Maples,

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The knee point of a current transformer is normally unique and known.So why in the nameplate of a CT they put the minimum value like this Vk> 400v.

0 Answers  

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