what will happen reduce the transformer voltage from 415v to 406v, is it save the energy,? are this methodis good to reduce the energy.?

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Dear sirs, pls check this 4-20ma to RS485 module datasheet,pls guve me some suggestions. http://www.szsunyuan.com/sy/pro_more.asp?Productid=539 Thanks. E-mail:yunianjiang99@gmail.com

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What is error of a measurement?

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Why frequency changes due to load variation in power system ? i.e why when load increases frequency decreases?

0 Answers   Madina Group,

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We are installing a 1.6 MVA transformer at our crusher plant and the feeder of HPSEBL is 2 km away at substaion . and a VCB is installed in the substaion which is 2 km away from transformer so we need another VCB near the transformer.

2 Answers   SCPL,

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15 kva dg set single phase takes 63amp( approximate) while same rating 15kva three phase takes 35amp approximate. why ? and what will be per phase current for 15 kva

2 Answers   TVI,

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3 phase induction motor rotor field rotate at synchronous speed w.r.t ?

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what is a tri vector meter? what are the tri vectors?

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speed of an electric wave

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Bhel supervision exam question: If 2 generators are working in a network. And if suddenly the field of anyone generator weakens. What will happen in the network? 1. The generator will run as motor 2. The generator will run as motor in reverse direction 3. The generator will take lighter load 4. The generator will take more load

9 Answers   Bhel,

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Hot Water System (HWS). Will a 30ma elcb have more nuisance tripping than 100ma elcb

1 Answers   CIMC,

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Which neutral is use when DG(3 Phase)is running?

3 Answers  

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