18-03-2016, 17:17
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Overanalyzing the Hints
 FRC #0900 (♞The Zebracorns♞) Team Role: Student
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Join Date: Oct 2015
Rookie Year: 2016
Location: Planet Earth
Posts: 685
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Re: Power Rules at competition
Quote:
Originally Posted by sanddrag
Be careful with inverters. Most of them are not true sine wave, and can kill certain types of electronics with switching power supplies, like laptops. If you do use an inverter, I recommend spending a little more to get a true sine wave one. Also, please make sure the DC side of your system is well insulated, fused, and safe.
On the note of power, in Long Beach, I noticed two pits were shared between one 20 Amp circuit. If I recall, we used to get dedicated 20 Amp circuits to each pit, but not this year. I'm glad our neighbors did not have any power tools, or we would have tripped it. Our pit can come pretty close to pulling 20 Amps between 12 batteries charging, two 150W halogen lights, 9 computer monitors, 3 computers, a vacuum, and a copier.
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Who would expect the Circuit Breakers to have a breaker-friendly pit?  I've plugged my MacBook Pro into a modified sine wave inverter and it had no negative effects. I would think that most modern laptops could handle modded sine wave, with adapters that can handle different voltages and such.
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