Single Phase Electronic Kwh Meter

Series electronic single-phase electric meter is the most advanced static electronc meter in China. The meter designs use large-scale integrated circuit, high reliability step motor, it can meter the AC single-phase active energy(voltage rating: 220V; Frepuency 50Hz), positive and negative two directions and accmulates in one direction. The on flash light, so it could be manged very easy.
The puality technical norm of the products is in accordance with t national standard and IEC61036 intemational standard.

Principle:
When users use electric energy, the electric energy meter takes samples of signal on the shunt voltage divider. After enlarging, multiplying, integration, V/F conversion, sub-frequency power driver circuit and processing, the drive frequency goes into the motor and then drives a cumulative energy degrees counter.

Technical indes:
High accuracy: Error<&plusmn; 1.0%1Class(<&plusmn; 2.0%2class)
High sensitivety: Initial staring current <0.4%Ib
Range of large load: Current overload ratio>6
The temperature rage: The normal temperature of work: -10-45The extreme limit temperature: -40-65 Low power consumption: Consumption of meter
Itself <1W
High reliabilty: MTBF>105
Weigh: <0.6kg
Starting current the meter can wok correctly at rated frequency, when load current is larger than 0.4%Ib. (power factor: 1), Running with no-load
The meter use logic circuit to anti-creep.