Answer / shaju r

UPS starts with letter U and Inverter starts with letter I.

Answer / somannappa

The main difference between UPS and Inverter is that UPS is
costly and inverter is a bit cheaper compared to UPS.

whats is MARX CIRCUIT?

1 Answers  

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We have one Energy meter for Measuring the voltage,current,power,energy(KWH,KVARH,KVAH) & power factor.The problem is that the meter does not show whether the PF is lagging or leading.So i want to know that is there any way or calculation to find out that whether the PF sign (lagging or leading) depending upon the above mentioned parameters?

4 Answers  

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pls someone send me sample question papers along with the key.thanks in advance

0 Answers   HPCL,

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what's the meaning of the negative going half cycle in the circuit containing a bulb and a switch in series with a input ac source. i mean what happens in the -ve cycle. the dir. of current changes or any other thing. if dir. changes then why we use fuse in only phase wire.

2 Answers  

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how to calculate cable size in diffrent loads?

0 Answers   ABB, Sterling,

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WHATS THE DIFFERENCE IN USING THE 125% AND THE 250% FACTOR OF SAFETY IN CALCULATING CIRCUIT BREAKERS CAPACITY IN MOTOR APPLICATION??

0 Answers  

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Which system use dc to dc high voltage gain A. Solar system B. Battery backup

1 Answers  

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how to calculate the capacitor to maintain power factor?

0 Answers   Bosch,

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How we connect capacitors in Fixed Series compensation of AC transmission lines. Whether in parallel or in series?

3 Answers  

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how to determine motor size for a fan application?

0 Answers   EDC,

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Zone of protection and tripping scheme of arc protection relay.

0 Answers   KSEB, L&T, Siemens,

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how to modify DOL control panel into Delta Y connection?

0 Answers   ABB, PDCS,

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