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sanjay


{ City } delhi
< Country > india
* Profession * engineer
User No # 41918
Total Questions Posted # 1
Total Answers Posted # 3

Total Answers Posted for My Questions # 1
Total Views for My Questions # 4190

Users Marked my Answers as Correct # 21
Users Marked my Answers as Wrong # 6
Questions / { sanjay }
Questions Answers Category Views Company eMail

what is the meaning of stub protection?

1 Electrical Engineering 4190






Answers / { sanjay }

Question { 5332 }

why some transmission lines have 7 wires n why some have 3 n 4??


Answer

question is about transmission line.

If a 220 or 400kV line is having single circuit. Then there
will be 4 or 5 wires. 3 wires for phases and 1 or 2 ground
wires depending upon the tower structure.

Is This Answer Correct ?    3 Yes 3 No

Question { 5420 }

Transformer Secondary maximum current (max. load)


Answer

secondary full load current

if secondary is star/delta connection
X: 118.09A Y: 118.09A Z: 118.09A

Is This Answer Correct ?    2 Yes 2 No


Question { Siemens, 6879 }

whatis knee point ?


Answer

Knee point is the term comes under current transformer (CT)
It is a point in the Curve of voltage and current where if
there is 10% increment in voltage then there will be 50%
increment in current. This point shows the saturation of CT
core. For Protection CT knee point will be high as for
metering CT it will be less to save the meters.

Is This Answer Correct ?    16 Yes 1 No