why are using bus ducts ? why not using cables

Answers were Sorted based on User's Feedback



why are using bus ducts ? why not using cables..

Answer / ramesh kumar

busbar is Cu or Al conductor without insulator..in market
current Rating available for busbar is high compare with
armored insulated cable. cost also high for cable. but in
safety aspect cable is good.we can use N no of cable to
attain current rate by connecting parallel. busbar need
protection from water. so using dusts shaped structure to
protect busbar.

Is This Answer Correct ?    3 Yes 26 No

why are using bus ducts ? why not using cables..

Answer / suresh

Also busbars are made in Stainless steels. Once the high
current pass through the steel become hot more than copper.
If we use the sheathed insulation or cable it's become
melted. So, we use busducts to the busbar's was the correct
choice.

Is This Answer Correct ?    6 Yes 45 No

Post New Answer

More Electrical Engineering Interview Questions

What is protection for single phasing ?

6 Answers   SISL,


how to differentiate a mpcb,mcb with a contactor? Explain their working operation

0 Answers   L&T,


A group of machines (wind turbines) connected with 33KV feeder and each machines are having individual VCB. The 33KV feeder connected with 110KV/33KV substation. The 33KV feeder tripped by over current at Substation and fault recorded at Substation as OC-R&Y phase. Same time the group of machines VCB tripped by over voltage, the fault recorded voltage was above 66KV by numerical Under/Over voltage relay. While grid drop time, this much of voltage hike is possible?

1 Answers  


What happen if we re-start H.T motor whose rotor is running at 40% rated speed. Is it will damage motor winding?

1 Answers  


sir plz send some previous year questions of jspl.

0 Answers  






Can we use a absolute encoder to show rpm of a motor ? what about the condition when power is off ? what is difference if a incremental one is used ?abanirout@gmail.com

0 Answers  


How the value of KVAR of capacitor bank used in switchgears calculated??

2 Answers  


Advantages of using bundled conductors ?

3 Answers  


how to select battery for 15 KVA UPS with formula

0 Answers  


What is power factor? How to improve Power factor? draw a circuit diagram showing the connection of power factor improvement equipment to the electrical instillation.

1 Answers  


What kind of battries are generaly used with Disel Generator?

1 Answers   Exide,


Two bulbs of 500w and 200w rated at 250 v will have resistance ratio as ?

2 Answers   CGL, Dreamz Infra, Sunny Developers,


Categories
  • Civil Engineering Interview Questions Civil Engineering (5085)
  • Mechanical Engineering Interview Questions Mechanical Engineering (4451)
  • Electrical Engineering Interview Questions Electrical Engineering (16632)
  • 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)