# Induction generation micro hydropower system - Help! - RF Cafe Forums

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kittyprincess
 Post subject: Induction generation micro hydropower system - Help! Posted: Sun Jan 21, 2007 6:17 pm
Hello Brains Everywhere!

I hope this is the right forum...if not perhaps someone will inform me (not too harshly, I am such a newbie)

I am working on an induction generation microhydro system and the calculations for determining capacitance are eluding me.

I am using an AC 3 phase motor:

Horsepower: 1 1/2

Voltage: 230/460

Hertz: 60

Phase: 3

Usable at 208 Volts: N/A

RPM: 1140

I can eek 10 amps (DC) out of it running at 1200 rpm with 40uf in delta off of the delta connected 230 v input. (after transformer and recitifier magic to produce DC)

Of course I want more amps! But my formula's elude me. I know there is one to determine most efficient capacitance. Thank you in advance for any help you can provide.

nubbage
 Post subject: Posted: Mon Jan 22, 2007 6:07 am
 General

Joined: Fri Feb 17, 2006 12:07 pm

Posts: 304

Location: London UK

Hi Kittyprincess

You have landed on a planet where 40 microamps is heavy current

We mainly dabble with radio, RF, weak electromagnetic fields etc.

However, we probably have a number of electrical engineers present who might help.

I am not sure where the capacitor figures in this unless

a) it is to do with 3 phase to single phase conversion or

b) the rectifier filter capacitor.

Posted  11/12/2012