Recent content by Evgueni

Gentlemen. Could you tell why those curves were published . If its not practical information why Engineers have used it?

I found time - current curves for CED 6. For S.C.current 31 kA rms 0.48 kV I got operation time as 0.0033 sec

I have used ETAP for one year . No compliances. Everything what you mentioned could be done by ETAP. Good luck.

Good morning Gentlemen I’d like to remind everybody about top location of the primary and secondary bushings for IEC performance of the Transformer 10 kV. This could effect to layout .

Good morning Gentlemen Several days ago I found in Internet(Google) one poor description about Current Limiting Circuit Breakers with combination of the dual-pivot contacts and single-pivot contacts. The work principle based on the high arc impedance during tripping action.(It could be...

Good morning Colleagues. First I’d like to tell great thanks to everybody who responded to my question : mpparent , davidbeach , BJC , cuky2000 , rcwilson , and I’d like to provide some comments concerning previous discussion : 1. S.C. fault could occur in any place of the cable which is located...

Hello Gentlemen It is my first time here. There is short history about my problem. This project has radial distribution power system with the following voltage levels 115 kV , 13.8 kV , 4.16 kV , 0.48 kV. After S.C. calculation I got S.C. as 30.7 kV r.m.s. on the bus 0.48 kV hich is connected...