Recent content by johnboyman

I am trying to learn and perfect my formulas.

Hello. I am experimenting with LC Circuits. So far I know that 1/2*Pi *Sqrt(LC) will give you the frequency of the lc cricuit. So when i decide which components to use I can start with that. I was wondering though in a circuit with a 60 hertz supply. What is the minimum and maximum frequencies...

Thanks alot

I have studied some calculus. Where did (1/5)⋅∫5⋅ go in the beginning of the equation and in the end how did you go from cos to sin and where did /60 come from? Sorry to to ask, i have gaps in my math. I = (1/5)⋅∫5⋅cos(60t)⋅dt = ∫cos(60t)⋅dt = sin(60t)/60

Hello. I am working this formula. I= 1/L∫Vdt . The following website have the best explanation of it. http://www.learningaboutelectronics.com/Articles/Inductor-current-calculator.php I am confused with a few things about it. One is that this website says If the current is Ac then the value...

So resistance of the inductor? I can get that value with and ohmmeter?

What is R in [√(R2+XL2)]

Ok thanks. I found a formula I= 1/L∫Vdt, . It is an Inductor current formula. So i can find out how much time has past for the frequency i was using and plug that into T. Then find out the voltage for that frequency and plug it in for V, then I can figure out the inductance for my coil and plug...

I am not making an inverter. I want to know how to match the coils in the motor with the inverter. I am guessing if i have 9 coils total in my motor then it should be 3 coils running per phase. If the inverter uses 4 amps per phase how do i match the motors coils with the inverter amperage? Can...

This is all very valuable to me. I have one more thing that i am trying to finish. I have a motor that i made to test out on. I wanted to figure out what size inverter I need for it. I need match the amperage of the motor with the output power per phase witch is around 4 amps for my inverter...

Thanks.

So your talking about about 4 amps for my inverter? Sounds good. I have an induction motor it is 0 - 60 hz, when i change the frequency doesn't that change the speed. You said speed is proportional to the voltage are you talking about the inverter? thanks

Before any assembly or connection work, discharge the VFD. Verify that the VFD is discharged completely. Do not touch the terminals because the capacitors may still be charged. I have moderate experience with AC Mains projects. I am very careful always. Thanks

Hello. I am working on a science project of mine which is a three phase motor. I have a 220 volt 1.5 kw inverter and i want to build a motor for it. I have been experimenting on building rectangular loop inductors and everything is going well. I have been doing a lot of research and I am part...

Thanks that's very easy for me to understand it soaked in asap. No one else could say it like that.