Abstract: Abstract:The measurement principle of kilowatthour meter was introduced. The relation between the true active power and the incorrect meterdisplayed active power caused by incorrect voltage loop wiring of kilowatthour meter was analyzed, and according to this relation, the kilowatthour data error was calculated. Various incorrect voltage loop wiring forms of the kilowatthour meter were analyzed. It was pointed out that the adopted calculation method of the kilowatthour data error must be suitable to the voltage loop wiring form of the kilowatthour meter and practical load condition.

Key words: Keywords:kilowatthour meter, incorrect voltage loop wiring, kilowatthour data error, quantity of electricity compensation, calculation