naveen


{ City } jodhpur
< Country > india
* Profession * territory manager
User No # 24932
Total Questions Posted # 0
Total Answers Posted # 5

Total Answers Posted for My Questions # 0
Total Views for My Questions # 0

Users Marked my Answers as Correct # 56
Users Marked my Answers as Wrong # 10
Questions / { naveen }
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Answers / { naveen }

Question { TCS, 56421 }

what is the difference between thermal magnetic release and
microprocessor based release breakers. what are the advantages
of latter over the first one...


Answer

fault sensing time is less in microprocessor release

Is This Answer Correct ?    21 Yes 6 No

Question { 9055 }

Can anybody explain Why starters are not used for motor
starting in industries?


Answer

starters are used in industries ,i have seen thousands of
motors starting through starters. you have to use
starter ,its type may change like dol,star-delta,soft-
starter,oil-starter,ats.

Is This Answer Correct ?    12 Yes 0 No


Question { 9587 }

WE are using a 63A MCCB(SIEMENS MAKE) for one of the feeder
in LV substation panel.It is supplying to a lighting & power
socket DB.Settings in the MCCB is Ir = 63 * 1 , Isd = 8
times of Ir , tsd = 0.5 sec( I2 t off).
Sometimes this MCCB is tripping .But no trip in DB MCB.
Can anybody tell me reason ?
From where i can know about the MCCB settings?


Answer

This may be due to absense of discrimination feature in
DB.or cascading is not as per requirement.better to have a
word with siemens engineer

Is This Answer Correct ?    1 Yes 3 No

Question { 9191 }

How to identify the whether its an isolator or Breaker in
MDB


Answer

these all above are differences only but to identify ,read
details printed on device

Is This Answer Correct ?    6 Yes 0 No

Question { 13828 }

how can alculate the apfc panel rating?


Answer

it depends on type of load ,calculate avg power factor of
load than consider p.f. of transformer than you can get
value of apfc rating

Is This Answer Correct ?    16 Yes 1 No