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dpc, yes, i am trying to lower the short time settings. thanks for the advice. aqua

Hey, Needed some help with relay coordination I have a system whose arc flash study i have already conducted. However, the arc flash level is very high. I have now been assigned the task of reducing the arcing time by coordinating the devices again. I have read IEEE 242 chapter 15 on...

Why are both the maximum and minimum short circuit currents required for relay co-ordination? Isn't the maximum short circuit current sufficient? And while computing minimum short circuit current, do we neglect only the motor contribution or are there other parameters to be ignored?

I came across the concept of sensors, plugs and frames used in switchgear in the United states. I haven't been able to fully grasp the need and working of the above. Until now, i've only heard of current transformers used for wiring relays and metering. Could someone explain and give me some...

I feel most terrible about bothering you, but this file seems to be reluctant to download itself. I tried multiple times and waited a long time. Every time i click on the mvt.pdf link, a new page opens and it remains blank. I really need this information urgently. Is there any other way i can...

hey zogzog, im really sorry to bother you yet again, but when i click on this link, im taken to another webpage where the file mvt.pdf is attached.. on clicking on the same, a new page opens but the page is blank. Could you please instruct me on what to do? Thanks, aqua!

Hey zogzog... There seems to be some problem with the file download... could you please post the file online again? Thanks, Aqua

Does anybody have a pdf copy of the datasheet for GE microversa trip catalog nos, TA9VT205GA3 and TA9VT325GA3? Thanks, aqua1985