Determining Max Zs For Time Current Curve

Former Community Member over 4 years ago

How do you determine the max Zs when the manufacturer does not list or specify the maximum permitted earth fault loop impedance? TN system.

https://library.industrialsolutions.abb.com/publibrary/checkout/GES-6119D?TNR=Time%20Current%20Curves%7CGES-6119D%7CPDF&filename=GES6119.pdf

Parents

0 Former Community Member over 4 years ago

Thanks. Do I use the maximum clearing time or go somewhere in the middle between the two boundaries of the time current curve?
Cancel
Vote Up 0 Vote Down

Cancel

Reply

0 Former Community Member over 4 years ago

Thanks. Do I use the maximum clearing time or go somewhere in the middle between the two boundaries of the time current curve?
Cancel
Vote Up 0 Vote Down

Cancel

Children

No Data

Join us to get the best from IET EngX.

Joining EngX lets you personalise your experience so you stay up to date on the topics that interest you, plus you’ll be able to make connections who are looking to collaborate, exchange ideas and more.

Determining Max Zs For Time Current Curve

Community Rules & Guidelines