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What is the "normal" three phase voltage in the US ? 440V, 460V or 480V ?? Offshore is normally 440V but motors made in US are 460V and someone claims 480V. Do you use 460V motors as a standard? Since I'm in Europe I have no clue, but need the info.... Audun

I'm wondering if anybody has a setup for measuring negative sequence currents. (using 5A CTs) Anything analoge, not digital please. Audun

What does "fault make", and "fault break" represent when indicated for a systems fault levels. I'm only used to transient and subtransient short circuit currents. For a breaker I know what make and break levels indicate, but I have never before seen it used for system levels...

What is the difference between those two ? Audun

What happens to SF6 above 45.6 deg.C, since this is stated as a critical temp for use in a SF6 CB? Audun

Hi folks. I have tried to find what recomondations there are regarding negative sequence currents in generators. Standards state max 10% of rated current, but Aggreko told me their rental gen.sets could handle 33% negative sequence currents. When I asked why they differ from the standards, they...

Is insulation thickness the same for XLPE and EP-rubber for same voltage rating ? Audun

Hi What guidlines do you know regarding unsymmetrical threephase generator load. My question relates to the following case: 480V diesel generator. Load currents for phases are approx. 2000 A, 2800 A, 800 A PF=0.8 What generator rating is recomended. I think there are som production standards...