Golgappa.net | Golgappa.org | BagIndia.net | BodyIndia.Com | CabIndia.net | CarsBikes.net | CarsBikes.org | CashIndia.net | ConsumerIndia.net | CookingIndia.net | DataIndia.net | DealIndia.net | EmailIndia.net | FirstTablet.com | FirstTourist.com | ForsaleIndia.net | IndiaBody.Com | IndiaCab.net | IndiaCash.net | IndiaModel.net | KidForum.net | OfficeIndia.net | PaysIndia.com | RestaurantIndia.net | RestaurantsIndia.net | SaleForum.net | SellForum.net | SoldIndia.com | StarIndia.net | TomatoCab.com | TomatoCabs.com | TownIndia.com
Interested to Buy Any Domain ? << Click Here >> for more details...


What is the voltage violating limit to be considered for
load flow study? What is acceptable deviation limit
according to relevant standards?



What is the voltage violating limit to be considered for load flow study? What is acceptable devia..

Answer / omar aziz

Mostly standards (IEEE , ANSI) recommend 5% however, in
practical situations where a sound judgment can be made you
can strech it upto 10 - 15% at the load bus depending on
your min. voltage allowed by the motors/ other equipment.

Motors can usually start at around 80% rated voltage ,
however other electronic equipment such as UPSs are very
sensitive to voltage variations.

Consider the load before selecting this threshold otherwise
stick to 5%

Is This Answer Correct ?    1 Yes 0 No

Post New Answer

More Electrical Engineering Interview Questions

How to check phase R,Y,B

3 Answers  


What will be the diameter of pipe between conservation tank and transformer

0 Answers   JLL,


Is it possible to use AC supply insted of DC supply in trip coil operation? if not, why?

5 Answers   HAL,


What are the earth resistance Standards of 66kv sub stations according to indian norms.

2 Answers  


Is C.T will sense the current in both direction. As i know the C.T will sense the current in only one direction.

2 Answers  


Why in USA supply voltage parameters(230V,60Hz)are different,is there any advantage please brief.

1 Answers   APC, DRJ ARDE,


ratings of lightning arrester

0 Answers   Bajaj,


Can RCD's used to protect the VVVF drive if not why.

0 Answers  


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?

5 Answers  


My question is whether bellow formula is correct to find bus size for 46kA for 0.5 second & what is RT in bellow formula. formula to calculate the size of busbar to withstand the thermal stresses due to currents with duration of 0.2 sec to 5 sec. Sp = RT( I x I x t) / K Where Sp – is the cross sectional area of bus bar in millimeters. I -    is the value of AC fault current. t -    is the operating time of disconnecting device in seconds. K –  is the factor depending on the material of the conductor, insulation and initial and final temperature. Value of ‘k’ for copper is 143.

0 Answers   Premier,


6 MVA transformer secondary is rated for 725V at no load. The incommer ACB is rated at 690 V, 3200 Amp. Would there be any effect on performance of ACB due to lower voltage rating?

5 Answers  


Can a 50-Hz designed transformer be used at 60-Hz system? Is the same remains true, when a 60-Hz designed transformer be used at 50-Hz system? Consider only frequency variation. The voltage remains as rated value in all cases. Justify the answer.

2 Answers  


Categories
  • Civil Engineering Interview Questions Civil Engineering (5086)
  • Mechanical Engineering Interview Questions Mechanical Engineering (4456)
  • Electrical Engineering Interview Questions Electrical Engineering (16639)
  • Electronics Communications Interview Questions Electronics Communications (3918)
  • Chemical Engineering Interview Questions Chemical Engineering (1095)
  • Aeronautical Engineering Interview Questions Aeronautical Engineering (239)
  • Bio Engineering Interview Questions Bio Engineering (96)
  • Metallurgy Interview Questions Metallurgy (361)
  • Industrial Engineering Interview Questions Industrial Engineering (259)
  • Instrumentation Interview Questions Instrumentation (3014)
  • Automobile Engineering Interview Questions Automobile Engineering (332)
  • Mechatronics Engineering Interview Questions Mechatronics Engineering (97)
  • Marine Engineering Interview Questions Marine Engineering (124)
  • Power Plant Engineering Interview Questions Power Plant Engineering (172)
  • Textile Engineering Interview Questions Textile Engineering (575)
  • Production Engineering Interview Questions Production Engineering (25)
  • Satellite Systems Engineering Interview Questions Satellite Systems Engineering (106)
  • Engineering AllOther Interview Questions Engineering AllOther (1379)