help needed to interface 3-phase(230v 50hz) ac signal

Status
Not open for further replies.
A

anees_av

Junior Member level 1
Joined
Oct 17, 2006
Messages
16
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Activity points
1,422
help needed to interface 3-phase(230v 50hz) ac signal for phase checking and correcting the phase

using pic 16f73, using 3-adc channel

the voltage is stepped down using 3-step down transformer to 5 volt

help needed in writing program in assembely and c-language
 

Hi

Use a timer which is reset at the zero crossing of any phase of them.
correct time if there's no phase problem must be
50Hz==> 20ms
we have 2 crossing per cycle so 20ms/2=10ms
we have 3 phases so 10ms/3==>3.33 ms must be the time between each phase zero crossing and the next for correct phase.

This is my idea , it may be wrong. think of it 1st

Salam
Hossam Alzomor
www.i-g.org
 

Status
Not open for further replies.

Similar threads

Menu
Log in
Register
Cookies are required to use this site. You must accept them to continue using the site. Learn more…