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???
07/14/08 12:12
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#156683 - from the OP
Responding to: ???'s previous message
The turns ratio is 230:9, and the secondary is rated for 9 mA. The effective load on the bridge is 18 Kohm, so the secondary current should be about 0.5 mA.


The transformer is rated at .9 VA, so it's running well below that. In fact, I finally heard back from the manufacturer and the only suggestion they had was to reduce the load to about 3 kohm because the transformer "doesn't like to be lightly loaded". Haven't been able to try that yet.



List of 15 messages in thread
TopicAuthorDate
Voltage sense circuit drift problem            01/01/70 00:00      
   Transformers            01/01/70 00:00      
      thanks            01/01/70 00:00      
         You Could measure the Temperature            01/01/70 00:00      
         You would have to measure!            01/01/70 00:00      
            OFF load ??            01/01/70 00:00      
   AC Grid            01/01/70 00:00      
   Sense mains voltage directly            01/01/70 00:00      
      RE: get a proper voltage transformer            01/01/70 00:00      
      isolation with a divider            01/01/70 00:00      
         Load            01/01/70 00:00      
            from the OP            01/01/70 00:00      
               I hate transformer makers            01/01/70 00:00      
               Time to get them in, then?            01/01/70 00:00      
               I made some experiences...            01/01/70 00:00      

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