How I can Compare 120v/60Hz versus 220v/50Hz ? Please tell me both advantage and disadvantage ......

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how to select cable size?

4 Answers  

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Our Alternator nameplate specifies a power factor of 0.8. When the Alternator is on light load, the bus bar voltage rises to 11240 volts, whereas the standard value is 10500 volts. Is it ok to increase the power factor to 0.85 or 0.9. I am afraid because the power factor on the name plate is only 0.8 ?

3 Answers   Escube,

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Please let me know when replacing electromechanical Relays for protection of generators with sr489 multilin Relay, then there is no need to use 86 master trip relay Too. I am wondering this multilin relay has no contact to Stop breaker reclosing as 86 does

1 Answers   Neucel,

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How do i carry out or know the vector group of a Dyn1 and Dyn5 transformer

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what is the meaning of cable Glanding can you explain brifly?

2 Answers  

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what is the clearances between phease to phease & phease to earth in 400 kv transmission line?

1 Answers   Lanco,

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WHWT IS USE OF VACCUM CIRCUIT BREAKER

4 Answers  

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A cylindrical wire is compressed in length by 10%. The percentage decrease in the resistance will be?????

0 Answers  

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what is L.T?specify the range?

7 Answers  

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What is the difference between the impedance percent and impedance voltage ?

0 Answers  

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What is Generator Protection & Transformer Protection?

3 Answers   Areva,

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