In order to solve the problem to accuratelycalculate the electricity quantity during the replacement of electricity metersfor users

which damages the vital interests of the power supplier

the powergenerator and the users

this paper developed an intelligent meterlesselectricity charging analyzer. Firstly

by studying the actual power of the secondary loop

the software and hardwareprinciples of the meterless billing method were analyzed and researched

and asmart meter for meterless charging was developed

which realized the accuraterecovery of electricity. Secondly

inorder to ensure the safety and realtime performance of the developedinstrument

some optimization measures were proposed to reduce the impact ofdevice access and removal on the secondary circuit of the system. Finally

the developed analyzer was appliedto multiple sites and one of them was analyzed.The analysis of the application showed that the error of the traditionalmetering was 11.7%

and the practical value of the developed meterlesselectricity charging analyzer was verified by field data.