over voltage protector

[l_ugavante]

i want to build a device that monitor an overvoltage of ac line, also capable of monitoring undervoltage and can handle high wattage load. Anybody have alredy build this project? please

 

[nettron1000]

**broken link removed**

This circuit requires an unregulated DC rectifier as the input to moniter the AC line. You can put transistors on the outputs to drive relays rated for the load you require.

 

[l_ugavante]

thanks to netron1000

hi netron 1000

thanks a lot for the schematic you sent. i can now build my overvoltage protector. more power to you regards.