Converting 230V / 30A DC

[Umbra]

Im using constant DC input od 230V / 30A and i need to convert this into
220V AC ( 50 hz ).
What is the simplest way to do this ?

Regards !

 

[Sjouke Burry]

Umbra wrote:

Im using constant DC input od 230V / 30A and i need to convert this into
220V AC ( 50 hz ).
What is the simplest way to do this ?

Regards !




Quiky: coupled motor/generator.

Slow: buy/build a (pseudo)sine wave power convertor.

 

[Umbra]

Where to get coupled motor/generator ?
Do you have some schematics on how to build a (pseudo)sine wave power
convertor.

 

[Sjouke Burry]

Umbra wrote:

Where to get coupled motor/generator ?
Do you have some schematics on how to build a (pseudo)sine wave power
convertor.



Only the advise is free .

For the rest, use google or elbow grease to built things.

 

[Umbra]

i agree with you but i done this before.
I didnt find and converter for something like this...


"Sjouke Burry" <burrynulnulfour@ppllaanneett.nnll> wrote in message
news:4d6c07d7$0$8926$703f8584@textnews.kpn.nl...

Umbra wrote:
Where to get coupled motor/generator ?
Do you have some schematics on how to build a (pseudo)sine wave power
convertor.



Only the advise is free .

For the rest, use google or elbow grease to built things.

 

[Phil Allison]

"Umbra"

Im using constant DC input od 230V / 30A and i need to convert this into
220V AC ( 50 hz ).

** That is almost 7 kW.

What the heck is your source of such high DC power??

What is the simplest way to do this ?

** You are on the *wrong* NG - pal.




..... Phil

 

[P E Schoen]

"Umbra" wrote in message news:ikgrsf$vqj$1@localhost.localdomain...

Im using constant DC input od 230V / 30A and i need to convert
this into 220V AC ( 50 hz ).
What is the simplest way to do this ?

You can use a PWM VF motor drive converter. However, for 220 VAC you will
need about 300 VDC for the "DC Link". This is about 9 HP, and there are many
10 HP motor controllers available on eBay and surplus for probably a couple
hundred dollars. You should be able to rig a transformer to boost the 150
VAC maximum from the converter to 220 VAC.

http://cgi.ebay.com/HITACHI-VARIABLE-FREQUENCY-DRIVE-INVERTER-VFD-SPEED-/260744847025?pt=LH_DefaultDomain_0&hash=item3cb59a9eb1

Paul