Drei-Phasen-Prepaid-Stromzähler

Three phase Prepaid electric meter. DTSY450 and DSSY450 series single-phase electronic prepaid watt-hour meter conforms to standard GB/T18460.3-2001 Prepaid Watt-hour Meters, and all technical requirements for three-phase electronic watt-hour meters stipulated in standard GB/T 17215-2002 Alternating Current Static Watt-hour Meters for Active Energy(Classes 1 and 2). 1.Measure active electric energy, needn't to be corrected after working a long time. 2.Purchase electricity first, then use electricity; 3.Alarm for lack of residual electricity 4.Record information of power utilization 5.One card is supplied for one user, which has fine cipher identification against counterfeit; 6.Display residual electricity, accumulate and alarm electricity; 7.Can read user power utilization information backward 8.Test pulse of electric energy output