Phase Shift Circuit

[JFCWTR]

Hello,

I would like to know if there is any way of applying a phase shift to a 50Hz AC voltage.
I know that it is done on circuit board using op-amps, but is there any way of doing this at a high power level, say phase-shifting the 220V single phase AC voltage to a 20kVA load.

Thanks

 

[MJJBEE]

a phase shift transformer?

 

[JFCWTR]

Is there any way to use power electronics to do this?
Or is a phase-shift transformer the only way to do it?!

Thanks

 

[cuky2000]

Yes, there is a way to phase shift and input power source. There are at least the following options:

- Phase shifting transformer.
- Rotary converter.
- Static converter.
_{NOTE: Three-phase transformer connected delta-wye provides a natural fix phase shift of 30 degrees. Phase shifting transformer is available for high voltage applications. I am not sure if at LV there are commercially available cost effective options. Check the enclose link for reference.}

http://www.50hz.com/Solid/3ph/6050/120KSS35060.htm

http://www.50hz.com/Rotary/625IND5060QV.htm

 

[JFCWTR]

Thank you for your help.

I have now decided to avoid using power electronics, so I guess that a phase shifting transformer is the only way to proceed!