What is the DG power factor ? how?

0 Answers  

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can DOL used with slip ring motor?

0 Answers   NTPC,

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Handpump harness water dont go back.Why?

1 Answers   Focus Energy,

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How does an Accumulator works?

0 Answers   Heavy Engineering Corporation Ltd HECL,

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what's the defiance between T beam and inverted beam.

0 Answers  

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Which LED light is better for fire safety? 24 V DC or 220 VAC? (In fireproof factory Godown)

0 Answers  

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about metallurgy

0 Answers   Bhushan Power Steel,

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Question 96 - In infrared spectrum, one of the factors affecting peak location is the mass of the atoms. The stretching frequency of a bond connected to a lighter atom will be greater than the same bond connected to a heavier atom. (a) For halogens like florine (F), chlorine (Cl), bromine (Br), iodine (I) and astatine (At), what is their IUPAC group number? Hint : The proton numbers for F, Cl, Br, I and At are 9, 17, 35, 53 and 85 respectively. (b) For the compounds of H-F, H-Cl, H-Br, H-I and H-At, which one has the lowest stretching frequency and which one has the highest stretching frequency? State the reasons.

1 Answers  

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Difference between ac and dc

0 Answers   Eaton,

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In an existing power plant (phase I) with step up transformers (3nos) with Ynd1 vector group to the 400KV bus bar,an extension power plant (phase II) with transformers (4nos) with Ynd11 vector group >. what are the consequences of such configuration ,please note that % impedance are also differ i.e. 15% & 10.5% the reason was that auxiliary supply interface is at different voltage levels i.e 400v & 6.6KV in phase i and phase II respectively .please advise ! Thank you !

1 Answers  

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speed control by the variation of field flux result in 1- constant power drive 2-variable torque drive

1 Answers  

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Question asked in prototech first round

0 Answers   Protech,

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