The DD28/DD283/DD284 type single-phase watt-hour meter is a kind of induction meter,which is applicable to measure the rated frequency 50Hz and measurement of active electric energy in single-phase A C electric net All technical targets are completely conformed to National Standard GB/Tl7215.311 -2008 ClassO. 5,1 and 2 AC Active Watt-hour Meter
 Function and Feature

The meter has seqarable iron core structure;

 The bearing has three kinds single-jewel,dual jewel,magnetic floating;

    The case has three kinds Aluminum,plastic and glass;

 The die-casting frame is alloy aluminum with excellent mechanical strengt