"frequency"=>"50","voltage:primary"=>"150000","voltage:secondary"=>"50000"
"frequency"=>"50","voltage:primary"=>"150000","voltage:secondary"=>"50000"
"frequency"=>"50","voltage:primary"=>"150000","voltage:secondary"=>"50000"
"frequency"=>"50","voltage:primary"=>"150000","voltage:secondary"=>"50000"
"frequency"=>"50","voltage:primary"=>"150000","voltage:secondary"=>"50000"