Answer / rishin

answer is 120....bcoz the answer is direct from the phasor
diagram which is same as that of the transformer phasor
diagram...

Answer / guest

the pf angle is nothing but angle between voltage and
current and here in induction motor the emf and current are
displaced by 30 and the stator and rotor are displaced by
delta

why 3 phase motors are preferable over single phase motors ?

4 Answers  

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hello!my name is sheikh iam preparing for indian engineering servieces,please send me the old question papers..to sheikhshaazforjobs@gmail.com

0 Answers   APCPDCL, apspdcl,

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We have a couple of oil tanks at our plant. One of them does not have a lightning arrester installed. My question is it necessary to install an arrestor on every tank or will this particular one be covered by the arrestor installed on the ajdacent tank, Since all the tanks are close to each other. Basically, I want to know that if these arrestors or protection works in a parituclar area of effect or influence. Thanks

0 Answers  

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Why Utility Distribution System in India is mainly at 11 kV? Why not Utility go for 33 kV?

0 Answers  

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Why is the starting current high in a DC motor?

2 Answers  

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Why a single-phase induction motor not an inherently self-starting machine?

11 Answers   ETC, Hindustan Shipyard,

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As all us know that the capacitor panel is connected to improve the power factor when it is PF is low. whether we can connect the capacitor panel on D.G. side(? If it is yes means why?

1 Answers   Aricent, Essar,

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Simple calculation of improving power factor?

5 Answers  

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If we feed 230V ac supply to a full wave rectifare, what & how much will be the out put voltage?

3 Answers  

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how we will deside the high voltage value

0 Answers  

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how generater works

4 Answers  

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which signal we found accurate reading of analog signal or degital signal and why?

1 Answers  

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