Questions tagged [ac]
The ac tag has no usage guidance.
9 questions with no upvoted or accepted answers
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Understanding transformer secondary winding
I purchased a step down transformer from a junk yard. I tested the transformer and it works but I am confused as to the secondary winding.
The primary side has these markings
G 0V 100V
The secondary ...
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Breakdown voltage of electronic devices
Diode and transistor have reverse breakdown voltage. Are these devices permanently destroyed under such voltage? Also, do these devices have breakdown voltage when AC voltage is applied? How much AC ...
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What is the maximum frequency of an AC current?
I saw that the rpm of a synchronous motor is proportional to the frequency of current alteration and I was wondering if there is a theoretical maximum frequency (regardless of magnet strength)? Also ...
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Single hose portable air conditioner with door open?
I have a strange question/theory that I'd like some advice on.
I currently have a garden shed that is being used as a home office. On sunny days, the inside of the shed gets very hot - too hot for me ...
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Household 3 phase devices
So, I'm not sure if this is the right place to ask this, but have been working on modifying a lawn mower robot that has, for roughly 3 years now been stored under less than favorable conditions. As a ...
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Getting the actual CFM and kW from AC current
I have this AHU with a 3-phase induction motor which is connected to a VFD. I get continuous frequency data from the VFD and I would like to know the CFM output and energy consumption in kW at each ...
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Why are my water pumps becoming noisy all of a sudden
I purchased 3 identical submersible water pumps for my irrigation mister heads.
Im running them in clear tap water at room temperature(blockages are not a concern)
After running one for 30 hours, the ...
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Convert a 3 poles AC/DC battery charger into a 2 poles DC power supply?
I have a battery charger with a positive pole, a negative pole and a common pole, see the below diagram.
The output voltage is as follows:
positive-common 5V DC
negative-common 5V DC
positive-...
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Issues with Building AC Generator
So we are trying to build an AC generator, an alternator, if you will. We are using a 5" PVC pipe for the body with a hole drilled diametrically, through which a bolt passes. Inside of this pipe, on ...
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