What is the Difference Between the SCADA & PLC ? Both it also control and Supervise Then what Special in Scada & PLC?

1 Answers  

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Hi everyone. Some Generators uses 3-Pole breakers with extra contactors for Neutral. Some uses 4-Pole. Why so? What is the idea behind this? Thanks in advance for the solution. Kr.

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if the magnetic lines can pass through a vaccuum area

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How to know any size of cable if there are not written on cable? Answer must be theurical not by experience.

0 Answers   El Seif,

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What is instrumental error?

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design of IGBT firing circuit for 11KV

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Are you connected Transformer neutral eathing with it's body earthing or earthing met of switch yard.? Yes or No ? why ?

2 Answers  

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what is meant by dielectirc medium? what is the dielectirc value of air and water???

2 Answers   ISRO,

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Hello Can I use step up HV transformer 440/4160V as a step down? Thanks Evgeny

5 Answers  

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Why we use d.c. meger in a.c. induction motor?

1 Answers  

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Explain Power factor in simple words

1 Answers   ETO,

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What is OLTC AND RTCC and it's function?

2 Answers   Sterling Wilson,

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