The price ladder smart meters

Introduction: to achieve price ladder segment metering, segmented deductions prepayment meter Use: Energy Metering: Metering single, three-phase active energy prepaid: Local prepaid metering can be stepped directly on the meter, buckle Remote meter reading fee: a power line carrier, RS-485, wireless and other communications interface with DL / T645 communication protocol alarm function: When the remaining amount is insufficient, overdraft feature to notify the user via the display, e-mail, SMS, etc.: Allow Set overdraft consumption, when more than overdraft threshold, the meter off, recharge automatically deduct overdraft works: electronic prepaid energy meter based on the increase of the price ladder and remote meter reading and reference design based on: GB / T 17215.321-2008 "AC measuring equipment - Specific requirements Part 21: Static meters for active energy" GB / T 18460.3-2001 "IC card prepaid vending system - Part 3: Pre-paid meter" DL / T 645 -1997 / DL / T 645-2007 "multi-function meter communication protocol" NDRC "on the residential electricity price ladder pilot guidance"