Answer / wasim

Only at source side

Answer / 7anoter4

The grounded point of a cable shield[or screen] could be :
1)at the supply side-usually is not necessary since the
supply side is enclosed
2)at the far end-is better for receiver security.
3)if the built-up voltage-due to induction produced from
the current flowing in the main conductor-is elevated [more
than 25 V usually limited]then a middle point grounded will
reduce this voltage to a half.
4)Both ends-if the middle point it will not reduce enough
the built-up voltage.
However, the circulating current will produce a
supplementary heating of the main conductor and then a
derating factor should be introduced.
There are also other means to overcome this by cross-
bonding the shield and even the main conductor, also.

Can step down transformer works as step up one???

2 Answers  

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Why Powers are named in MW?

1 Answers  

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hi....I am from india..i have completed my engineering in electrical and electronics field with 58.4% and my IELTS score is 5.5 bands....Recently i received my I-20 in computer and information science from Troy university in Alabama.On 18th i have a visa interview can u please tell me what type of questions i have to answer ??????

0 Answers  

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Im designing APFCR Panel for 600 KVAR.I need to calculate the full current so that i can choose the capacity of isolator/Breaker.Kindly suggest with formula.

1 Answers  

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DEAR SIR, HOW TO CALCULATE WELDING TRANSFORMER CAPACITY IN KW OR KVA (POWER). TWO WELDING TRANSFORMER USED WHAT TYPE OF DG SET CAPACITY LIKE ( 45 KVA OR 62.5 KVA), PLEASE TELL THE WELDING TRANSFORMER RATEINGS. I AM REFINARY (TANKS WELDING) THANKING YOU

2 Answers  

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WHat is the general checks required for Dry type transformers

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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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How we can calculate what type of supply we need for an example sometimes we take 11 KV and sometime 33KV from EB ?

4 Answers  

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How to select the cable and voltage drop in circuit?

0 Answers   DEWA,

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Dear sir, I am working in wind mill division , pls explain Pls explain in details with formula My question is Wind speed 3.5 M/s Gen RPM is 1500 ( 25 K/w Production ) Wind speed 12 M/s Gen RPM is 1500 ( 220 K/w Production ) Why in 3.5 m/s generation was low , why in 12 m/s generation was high , Pls dont explain wind force or wind density , that one already i know For the above question RPM was same why the KW was different Answer : 1. Its depends on the density ( Force ) of the air Sir , Pls explain wit Formula sir

1 Answers   Vestas,

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how do you reduce the skin effect

2 Answers  

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Where burned of electricity,when,who, & why.

0 Answers   NIGP,

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