Answer / y . rama devi

The difference between direct and indirect loading is that intermediateris (act as controllable switch) that can turn power to a load

what is the rating of boiler?

4 Answers  

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10 Mtr Hight of Lighting Arrestar how much area coverd??

0 Answers   OmniActive,

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A system having the charactristic eqation (s+1)(s+2)(s-3)=0 is (a)stable (b)unstable (c)marginally stable (d)critically stale

1 Answers  

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I have an existing old MCCB. ABB Model SACE, the rating are: Ue = 660 volts, Iu =1250 Amps, 3 poles, Ith (max) =800 amps at 45 deg C. I need a circuit breaker for my 3 phase motors, 380 volts 60 hz. the supplier required the minimum ampacity of the breaker to be 911 amps. can i use this breaker with rating of Iu =1250 amps but Ith = 800amps maximum?

0 Answers   Siemens,

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what about SAP/MRP regarding manufacturing of electric motors and all drives?

0 Answers  

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Comment on the working principle of operation of a single-phase transformer.

0 Answers  

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What are the commercial names of overhead conductors used in India?

3 Answers   UPSC,

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How will polarity test of Dy5 transformer ?

2 Answers   BSL,

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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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In star and delta connected systems , for driving power and as well as light load which one you will preferred?

2 Answers   Aramco, IBM,

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Why are the voltage levels in a powersystem are 11KV,33KV etc., why not 10KV,30KV?

2 Answers  

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what is the knee point voltage in current transformer

2 Answers  

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