... the GB/T17215-2002 (IEC 61036-2000) standard, DSSD3338 Three-Phase Three-Line/Four-Line Electronic & Active Power Energy Watt-Hour Meter ... after the frequency demultiplication by the frequency divider, achieving the three-phase watt-hour measurement. The width of the motion ... meter and processing data. 2. High reliability: supplied by three phases power supply that the measuring accuracy would not be ...