Email: Password: Remember Me | Create Account (Free)

Back to Subject List

Old thread has been locked -- no new posts accepted in this thread
???
06/13/06 14:13
Read: times


 
Msg Score: +1
 +1 Good Question
#118229 - Validating an Idea
I have to sense 3phase voltage (Y connection, No neutral available) , check if each of the three phases , R,B,Y is beyond a certain range (low or high) and depending on the condition, control some equipment over a RS485 modbus.

I intend to use tranformer between R,B and another one between R,Y, derive some DC voltage and use comparators to make decision. One of these transformers will also give supply to the microcontroller.

Is this idea valid? Or is there a simpler way by avoiding transformer? Can't compromise with isolation.

KG

List of 8 messages in thread
TopicAuthorDate
Validating an Idea            01/01/70 00:00      
   In that case            01/01/70 00:00      
   what if that particular phase pair goes            01/01/70 00:00      
      3 phase transformer ?            01/01/70 00:00      
      Battery back up            01/01/70 00:00      
      Yes. That is what I intend to do.            01/01/70 00:00      
   Some possible options            01/01/70 00:00      
      Thanks            01/01/70 00:00      

Back to Subject List