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Recent content by Colin Flatters
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Variable Frequency drive and Short circuit current rating
Having adequately rated VFDs and sutable input protection fuses to limit the I2t is perhaps the best approach rather than limiting the upstream fault level (unless it is excessivly high). Looking at the IEEE1584 arcflash you may well get a faster disconnection and a lower IE as well as a lower...- Colin Flatters
- Post #16
- Forum: Electrical Engineering general discussion
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HV / LV Cables In Air - Heat Gain (Solar Radiation)
Are there any useful resources / guidance available for cable derating where cabes are exposed to solar radiation withour revertin to first principles (though i suspect I will have to do so). Using red HV cable sheaths is common practice in the UK and should reduce the heat gain if my old...- Colin Flatters
- Thread
- Replies: 2
- Forum: Electrical Engineering general discussion
