## Busbar voltage drop calculation

- Calculate Voltage Drop for Bus Bar
- Select Size of Bus Bar for particular Load
- Enter Your Sub Panel Details like Load,Line Length

Software: |
Calculate Bus Bar Size and Voltage Drop |

Version: |
22.8.2012 |

Developer: |
Jignesh Parmar |

Size: |
56 Kb |

Price: |
Free |

Download: |
Right here | Get Download Updates | Get Premium Membership |

Dear sir,

i want calculations for w x h x d ( 80 x 10 x 1.5 ) mm thick copper bus bar. I want to learn how current capacity is decide based on cross section or dimensions or vise versa. please explain in detail. thanking of you.

Hi.

Can u pl explain to calculate current rating of bus bar. and pls share the formula.

we need excel sheet to calculate voltage drop in bus bar , kindly send me without protection. thanks,

this too cool

Dear sir,

i want calculations for w x h x d ( 100 x 25 x 1.5 ) mm thick copper busbar. I want to learn how current capacity is decide based on cross section or dimensions or vise versa. please explain in detail. thanking of you.

in case of copper bus bar the current carrying capacity is 1.2(max).

The bus bar 100mm x25mm x1.5mm is suitable for incomer current =(100*25*1.5*1.2)=4500A.

in case of aluminium bus bar the current carrying capacity is 0.8(max).

So, the bus bar 100x25x1.5 is suitable for =(100*25*1.5*0.8)=3000A incomer current.

You need to determine the faul level of the systems and full load current from the customer to determine the CB rating. You can then calculate bus bar rating based on the total connected load supplied by the bus bar and rate you bus bar based on percentages of full load current of connected load. Bus Bar rating are standard sizes based in iEC and IEEE. You have 2500A, 2000A, 800A, 1500A, 600A, 250A, you size bus bar rating based on the three parameters – total connected load of the system, fault level of the system,

Do I have to subscribe to every download or technical article I need?

Thank you

Bonjour Monsieur,

je n’arrive pas à télécharger les fichiers excel. pouvez vous m’aider? svp

Hi.

Can u pl explain hot to calculate current rating of bus bar. and pls share the formula.

Please provide an example… unable to understand that how to use..??

Hi. How to calculate the drop voltage for 25mm2 cable three phaze +earth . 350m 4 A

there’s no unit for power on the spread sheet. is it in kva or kw? thanks!

Dear EEP

Do I have to subscribe to every download or technical article I need?

Thank you

Lele

bus bar formula

Pls give me my email id bus bar formula

Regad

Ajit

Dear sir,

I ask you what is the bus bar calculation formula?

In case of Busbar voltage drop calculation you take Resistance=0.005 ohm and reactance=0.011 ohm . what is the reference of these values. have any international code ? also how can i get a cable resistance and reactance ?

Very useful..Thank you very much..

thanks.but i don’t understand the way to calculation. please help?

thanks

please advise and calculate, i have 5x1250Amps,.8pf, 220v gensets, synch to a common busbar, and two outgoing CB’s of 2500A, what will be the main busbar rating.

IN BUSBAR TRUNKING SYSTEM HOW DO YOU CALCULATE THE KA RATING OF THE BUSBAR. FOR EXAMPLE IF CUSTOMER ASKS US TO GIVE 50KA WITH 50x10mm ALLUMINIUM OR COPPER BUSBAR WHAT IS THE FORMULA WE HAVE TO APPLY PLEASE SOME ONE WHO KNOWS ABOUT HIS GUIDE ME

Customer normally shouldn’t ask you this, but to tell you the ratings of loads, so you can calculate the CBs in incomers and outgoing cubicles, as well as rating of main horizonal busbars. When you have all these information, you can calculate short curcuit withstand current on busbars.

I entered the results but I didn’t know what is sin(phi) so i put it =0

and the results below:

——————————————-

Selected BusBar is Correct

3.92 (Within Limit)

———————————————

What is the size of the bus bar ?

thank you for this great website

but unfortunately I couldn’t download the excel calculation files! what should I do?

Go ahead and register here:

https://electrical-engineering-portal.com/wp-login.php?action=register

BR,

Edvard

thank a lot for all notes had published in this portal……

Thanks for my registration.

Pl. tell me How/D.G set automatically start when mains supply fails.

By a relay called LVM(low voltage monitor), it will provide NO/NC contact to DG to start/stop