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...


How to calculate busbar size & what is the procedure we
make for determine that?

Answers were Sorted based on User's Feedback



How to calculate busbar size & what is the procedure we make for determine that?..

Answer / sujata wagh

Generally current carrying capacity of Al. is 0.8A per
sqmm and Copper is 1.6A per Sqmm.

Suppose we need bus bar for 630A, and we are going with
Aluminium bus bar

= 80*10*.8=640A
where 80*10 is size if bus bar usually available is the
market.
so we can use 80x10sqmm al. busbar per phase for 630A.

for TPN- (3.5)x80x10


If we are going with Copper bus bar
than we will use = 40x10sqmm per phase

= 40x10x1.6=640A
where 40*10 is size if bus bar usually available is the
market.
so we can use 40x10sqmm copper busbar per phase for 630A.

for TPN- (3.5)x40x10

Is This Answer Correct ?    246 Yes 46 No

How to calculate busbar size & what is the procedure we make for determine that?..

Answer / ashraf majid

The busbar size will be determined by the total loads
connected to the bus.This will require a comprehensive
study of nature of loads plus the surroundings of place.
The general procedure will be such that the operating
parameters don't voilate the maximum safety limits of the
bus.

Is This Answer Correct ?    145 Yes 65 No

How to calculate busbar size & what is the procedure we make for determine that?..

Answer / kajajohn

to calculate bus bar size normally for copper 1 sqmm =1.3 A
for aluminium 1 sqmm =0.8 Amps

Is This Answer Correct ?    129 Yes 49 No

How to calculate busbar size & what is the procedure we make for determine that?..

Answer / bhavin shah

busbar sizes can not be calculated only from overall size.
there are various derating factors like arrangment of
busbar, nos of busbar, spacing, enclouser size, ventilation
in room, temp rise, skin effect, proximity effect etc.
which need to be consider while designing the busbar.

Is This Answer Correct ?    64 Yes 15 No

How to calculate busbar size & what is the procedure we make for determine that?..

Answer / akmal

i want to add in vijay answer that the qulity of copper also
depend on amper rating of coper bar

Is This Answer Correct ?    65 Yes 22 No

How to calculate busbar size & what is the procedure we make for determine that?..

Answer / jaydev jena

current density= .8 amp/sqmm.that does mean 1sqmm can carry
0.8 amp current .if sisze of busbar is 100mmx 10 mm then it
can carry 800 amp.

Is This Answer Correct ?    61 Yes 25 No

How to calculate busbar size & what is the procedure we make for determine that?..

Answer / nikhan

The bus bar size normally for copper 1sqmm=1.3Am and
aluminium is 1sqmm=0.8Amp

Is This Answer Correct ?    53 Yes 20 No

How to calculate busbar size & what is the procedure we make for determine that?..

Answer / waves

Generally current carrying capacity of Al. is 0.8A per
sqmm and Copper is 1.6A per Sqmm.

Suppose we need bus bar for 630A, and we are going with
Aluminium bus bar

= 80*10*.8=640A
where 80*10 is size if bus bar usually available is the
market.
so we can use 80x10sqmm al. busbar per phase for 630A.

for TPN- (3.5)x80x10


If we are going with Copper bus bar
than we will use = 40x10sqmm per phase

= 40x10x1.6=640A
where 40*10 is size if bus bar usually available is the
market.
so we can use 40x10sqmm copper busbar per phase for 630A.

for TPN- (3.5)x40x10

Is This Answer Correct ?    40 Yes 7 No

How to calculate busbar size & what is the procedure we make for determine that?..

Answer / balakrishnan

can you give any example at any parameters?

Is This Answer Correct ?    62 Yes 37 No

How to calculate busbar size & what is the procedure we make for determine that?..

Answer / md.mahmudul hasan

we need to consider short ckt(KA) also. Say short ckt level
is 20KA then we need to select busbar accordingly.

Is This Answer Correct ?    30 Yes 5 No

Post New Answer

More Electrical Engineering Interview Questions

I hv a question regarding power factor improvement just after transformer. I request you to reply me plzz. thank you sir. My friend has a small unit of fabrication. in his factory the main load is a welding machine, lathe machine, grinding machine. this load is not continuous type. now our electricity board has installed 16 KVA, 11000/433 V transformer for our factory. In the energy meter (trivector meter) at LV side of transformer, i hv seen power factor value of 0.15 only when only 3 KW load was flowing. Further electricity board has suggested to install 4 KVAR capacitor at LV side after energy meter. Now my question is that if we permanantly install and switch on 4 KVAR capacitor after energy meter, during some load on transformer and also without any load on transformer, wht will be the power factor shown in energy meter?i dont want to get any penalty by electricity board, so plz suggest me if i can permanantly install and switch on the 4 kvar capacitor or not at LV side of transformer just after energy meter? Thank you again and awaiting for ur positive reply soon.

9 Answers  


Which supply is using for train AC or DC & what is the voltage????????

16 Answers  


i have a wire.and the current flowing in that.when we cut the wire then why dont we seen the elactrons....

8 Answers   GM General Motors,


(In MEP services) HVAC in AC Plant room what else can we provide if the chiller is not considered?

0 Answers  


IF HT CAPACITOR IN ON POSITION IS THERE ANY LOSSES I.S I SQURE OCCURS IN THE SYSTEM

0 Answers  


What types of testing in 11Kv Ht switchgeat during testing?

3 Answers   TCE,


What is the diff. between single compression and double compression gland

0 Answers   ASL,


what is the difference between effective earthing and resistive earthing?

3 Answers   REL,


how many minutes or seconds taken by the transmission of electrical power from generating end to distributing end?

3 Answers  


What is the formula to find out two phase active & reactive power

0 Answers   Areva,


how we select the mva rating of the circuit breakers?

1 Answers  


What are the possible causes if load is not same on all the three phases

4 Answers  


Categories
  • Civil Engineering Interview Questions Civil Engineering (5086)
  • Mechanical Engineering Interview Questions Mechanical Engineering (4453)
  • Electrical Engineering Interview Questions Electrical Engineering (16638)
  • 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)