"frequency"=>"50","voltage:primary"=>"220000","voltage:secondary"=>"110000"
"frequency"=>"50","voltage:primary"=>"220000","voltage:secondary"=>"110000"
"frequency"=>"50","voltage:primary"=>"220000","voltage:secondary"=>"110000"
"frequency"=>"50","voltage"=>"110000;medium","voltage:primary"=>"110000"
"frequency"=>"50","voltage"=>"110000;medium","voltage:primary"=>"110000"