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   11.9  
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 11.2  11.3  11.9
 
 
 11.9a  11.9b  11.9c
 
   
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  Question:  
  11.9  Draw an elementary circuit containing a series connection of:
    a.)  A 3 phase main breaker having both load and ground fault protection.
    b.)  A 3 phase, 220Vac input circuit converted into a 1 phase, 100Vac circuit.
    c.)  A 1 phase, 100Vac input circuit converted into a +5V, 12, 15 and +24Vdc output circuit.  Add fuses to both the inputs and outputs and add a circuit for detecting blown fuses.
 
 
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