Answer / pradyumna171

NO, NC coil Contactor and one siren may be used to solve this problem.

In Dyn11 power transformer if any one of the 3 phases connected to earth in star connected side then please explain effect of the current flow in delta connected side of transformer.(In this case if one phase is shorted to ground in star connected side then we observe the current flow in two phases only not three phases in delta connected primary side. Please explain why it is so?)

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i need of the bhel question papers along with answers and also give some website names for the downloading question (electrical and electronics engg question)please help me....

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what is the difference between main meter CT and check meter CT?and what is the difference between main meter PT and check meter PT?

2 Answers   Tesco,

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Which type of arc protection devices used.

2 Answers   KSEB, L&T, Siemens,

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In DC current-excitation to transformer, why it sucks more current? Eventhough there is no power transfer between primary and secondary? R is very low so it should suck less current only na thn y its current increases?

2 Answers   Cairn,

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What is the general system requirement of alternator?

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i karmveer bharti persuing b.tech . plz send me syllabus and name of reference books. for preparation of section eng.

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how do you find making current and breaking current of the circuit breaker

1 Answers  

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CFL lamp is what type of load?

6 Answers  

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send me the upsc conventional papers of 2006

1 Answers   Juniper Networks, Siemens,

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How the surge voltage can be arrested in electronic devices

1 Answers  

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how can i find ct ratio of meter by seeing name plate of meter and how it should be used in MF calculation if it shows only-/1???

0 Answers   Harshal Electrical,

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