I need infomation on how to calculate the changing time part of Faradays law. The answer i keep coming up with seems very low. I learned on this forum a few years ago, and i believe i have been doing it inproperly. Here is the formula i learned:
Use
N=100
B=0.4...
When calculating voltage for an axial flux generator with a permanent magnet rotor,
would the "Area perpendicular to the magnetic field" be the Area that the wire in the stator
occupies, or would the "Area perpendicular to the magnetic field" be the same size as the
Area of the...
Hello Everyone,
I have a question concerning the "Area perpendicular to the magnetic field".
If the field was produced by a permanent magnet, would the "Area perpendicular to
the magnetic field" be the same size as the Area of the permanent magnet?
Does the resistances of each phase in a 3 phase generator add together in the Star (wye)?
I read on a windmill site that the Delta connection is typically one third the resistance of the Star. So if i had 3 phases that were .5 ohms each in Delta configuration, would the resistance be 1.5 ohms...
I am building an axial flux generator with dual rotor and single stator. I was doing calculations and have a magnet pole pair question i need help with, there are 12 magnets on each rotor with North pole on one rotor across from South pole on the other rotor.
Since there are 24 total magnets...
I have a question about a magnets position over a coil of wire in an A.C generator. Is the voltage in the coil at Peak as long as its covered by the magnet? and then the voltage starts to decrease to 0 volts as the magnet starts uncovering the coil until the magnet totally uncovers the coil and...
Thanks for your patients vk6kro, I am trying to fully understand and comprehendall the information I am getting here.
Using your second diagram, what if there were 2 magnets with their north poles facing a small coil of wire instead of a single straight wire, would the results be the same...
The generator I am trying to build is a permanent magnet rotor alternator. I think I've complicated getting the explanation i seek by leaving out bits and pieces of information. The following is a diagram of the set up I am trying to use. In my diagram:
the north pole magnet is over side #1...
Thanks for the answer vk6kro, the closed loop is just an example to show that the magnets are positioned over each side of a multi-loop coil wound through a stator like in an automobile alternator. Could you elaborate why the current in the second diagram is flowing the wrong way? Lenz Law...
Hello everyone, i am back to this question because i can't grasp how to correctly place the alternating poles of the magnets in an a.c generator. In a three phase alternator there's a north pole placed over one side of the phase 2 and 3 coils while phase one is at 0 volts, then there's a south...
Hello Bob, the stator i have constructed has 36 slots for the 3 phases to be wound in, so i have 12 slots for each phase winding, so 6 coils per phase.
Also, i want to thank you M.S.J , i do appreciate that you took the time to answer my question even though the calculations were for a different set up of the generator. So many view my question and offered no insight. Thank you M.S.J AND Bob S.
Thank You Bob, that was the answer i was looking for. I am am building a 12 pole permanet magnet dynamo with a 12 pole wound coil stator. I plan on using option #1 and winding in series to get the maximum peak voltage and and using a high amperage rectifier bridge from a 200 amp alternator. Each...
Hello everyone, i have a question about induced voltage that i need help answering, in my calculations i believe i have made a mistake about the total voltage induced in the coil. My calculations follow as: 390 RPM / 60 Seconds = 6.5 Hz x 6 pole pairs = 39 Hz x 6.28 = 244.92 radians per second...