20DD28 Series Energy Meter

Application:
Model DD28 single phase electromechanical front board installed active energy meter is a kind of new style single phase two wire active energy meter, and fully absorb new technologies about electromechanical meter from domestic and abroad. The meter completely accord with relevant technical equirements of class 2 single phase active energy meter stipulated in international standard IEC 62053-11. It can accurate and directly measure 50Hz or 60Hz active energy onsumption from single phase AC electricity net, it is use for setting indoor or out door meter box. The meter has novel design, rational structure, and it can display total energy consumption by drum wheel mechanical register. It has following features: compact structure design, small size, economy enefits, specious appearance, etc. 

Structure and feature:
● Front board two fixed installation, the cover is made ABS engineering plastics molded overall which is black , fire-retardant and has a transparent glass window, the bottom of the meter is made of quality steel which is after double-through antirust processing, and the terminal is made of quality bakelite material which is moisture-resistant, fire-retardant, high temperature molded overall. It has following features: economy benefits, specious appearance, etc. ● The meter frame adopt aluminum molding with excellent mechanical strength, stable structure and anti-impact. ● Voltage components and current components is used of double insulation structure, has good electrical characteristics. ● Standard configuration voltage circuit and current circuit connect in the case, may select connect outside. ● Standard configuration bottom bearing is used of single-precious stone bearing, oriented bearing is made of high wear resistance copper alloy bush and stainless steel needle. May select magnetic thrust bearing or double gem bearing. ● All kinds of error adjustment mechanism adopt no step shifting mechanism. The meter starting and creeping needn’t to be adjust which is finished by anti-creeping hole of disc and convenient for adjusting by users. ● Standard configuration 5 digits display by drum wheel mechanical register, may select 6 digits display by drum wheel mechanical register.