Answer / k.prakashchandra

Battery back up time depends on actual/real load in KW ,not
the KVA rating of the UPS.

Answer / anand

Battery back up time depending laod.backup is inversly
preportional to load.

choose the non-switch device (A) transformer (B) diode (C) transistor (D) IC

3 Answers  

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why ac generator ratings in kva only why not kw ????????????? ?

7 Answers  

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Is a contactor (or master relay) required between incoming lines and a VFD? The question goes to safety. If a contactor were used before the VFD and an e-stop engaged then the motor will coast to a stop (i.e. VFD loses power) instead of stopping much faster if the VFD braking fucntion were used. It would make more sense to keep power on the VFD.

0 Answers   Pride Hotels,

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What is measurement?

0 Answers  

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WHAT ARE THE DATAS REQUIRED FOR PROTECTION AND METERING AND CONTROL AND LOGIC PREPARATION,HOW TO STUDY THE PROTECTION AND METERING?

0 Answers   L&T,

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How to decide the rating of CBCT? We have 6.6Kv switchgear & having 50/1 cbct ,i want to know how this 50/1 A came? On what basis we decide CBCT reting?

1 Answers   Cross,

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how to calculate the KVAr for an motor for improving the PF

3 Answers  

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how does it help for selection of a transformer.

0 Answers  

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Derive the inductance of a coil in terms of its physical factors.

1 Answers  

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What is the minimum underground tank size capacity considered for firefighting purpose?

0 Answers  

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during installation time of transformer and alternator which points we have to observed?

0 Answers  

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0 Answers   TATA,

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