Answer / mashani

presure switch is used to shutdown the substasion if the
presure inside the substasion is abnormal....this pressure
switch will tripped all Circuit Breaker inside the
substastion

Answer / k.prakashchandra

Pressure switches are used in pneumatic circuit breakers to
maintain air pressure

What is the Relation b/w star delta starter , DOL starter and two speed starter. if we want to rotate a 20 kw fan in 2 speeds which type of two speed starter we have 2 use?

1 Answers   ABB,

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why choke is provided in the centre of the tube light?

3 Answers  

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What is advantages of ungrounded neutral?

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what is the diffrence between current transformer and voltage trasformer

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how calculate busbar size for rated amps, which formula use

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why transformer rating in KVA or MVA instead of KW n MW??

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

0 Answers  

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What are the types of earthing? Explain dagramatically.

3 Answers   Siemens,

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super position theorem is applicable to

1 Answers  

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hi, i finished b.tech eee in 2008, im worked in dg sets mfg company , now i left job in 6months back, now again i want get job core side, how can i get? is there any couses we have learn to get better oppurtunity? /

0 Answers  

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