Features of electronic watt-hour meter
The electronic watt-hour meter uses a dedicated watt-hour meter integrated circuit through real-time sampling of the user’s power supply voltage and current, and processes the sampled voltage and current signals and multiplies them into a pulse output proportional to the electrical energy. The physical device shown on the monitor.
赛豆“碰瓷”阿维塔，背后另有深意，赛力斯在下一盘大棋①Powerful function and easy to expand
One electronic watt-hour meter is equivalent to several induction watt-hour meters. For example, a fully functional electronic multi-function meter is equivalent to two positive active meters, two positive reactive power meters, two maximum demand meters and one Only the loss-of-pressure chronograph can realize the functions of time-sharing measurement and automatic data reading that cannot be realized by these seven watches. At the same time, the reduction in the number of meters effectively reduces the pressure drop of the secondary circuit and improves the reliability and accuracy of the entire metering device.
共筑产教融合新平台！惠州臻准检测中心连续牵手多所高校②High accuracy and stability
The accuracy level of induction watt-hour meters is generally 0.5 to 3.0, and the error is prone to change due to mechanical wear, while electronic watt-hour meters can easily use various compensations to easily achieve a higher accuracy level, and the error is stable The performance is good, and the accuracy level of the electronic watt-hour meter is generally 0.2 to 1.0.
外媒：调查显示仅11%的欧洲人将美国视为盟友③The starting current is small and the error curve is flat
The induction electric energy meter can be started and measured under 0.3% Ib, and the error curve changes greatly, especially when the load is low; while the electronic electric energy meter is very sensitive and can start and perform under 0.1% 1b. Metering, and the error curve is good, the error is almost a straight line in the full load range.
商务部回应中新经贸联委会具体情况等热点问题④Wide frequency response range
The frequency response range of the induction electric energy meter is generally 45-55 Hz, while the frequency response range of the electronic multi-function meter is 40-1000 Hz.
海通国际首席经济学家张忆东：灰犀牛冲击力还没有过去，要养精蓄锐备战秋季行情⑤Slightly affected by external magnetic field
The induction type electric energy meter measures according to the principle of moving into the magnetic field, so the external magnetic field has a great influence on the meter's measurement performance. The electronic watt-hour meter mainly relies on the multiplier for calculation, and its measurement performance is less affected by the external magnetic field.
纽约市长：G4将举办场外观赛派对，尼克斯五场夺冠！⑥Easy to install and use
There are strict requirements for the installation of induction electric energy meters. If the suspension level has a large deviation or even an obvious tilt, the electric energy measurement will be inaccurate. The electronic watt-hour meter uses an electronic metering method without mechanical rotating parts, so there is no such problem. In addition, it is small in size, light in weight, and easy to use.
智能猎装轿跑启境GT7启售⑦Large overload capacity
The induction type electric energy meter uses the coil to work, in order to ensure its measurement accuracy, generally can only overload 4 times; while the electronic multi-function meter can reach 6-10 times the overload.
维维亚诺：不知道莫伊塞-基恩会去哪里，热刺应该不能引进他⑧ Stronger anti-stealing ability
Electricity theft is an unavoidable practical problem in my country's urban and rural electricity consumption, and the inductive watt-hour meter has a poor ability to prevent electricity theft. The new electronic watt-hour meter realizes the prevention of common electricity theft from the basic principle. For example, ADE7755 can measure the phase line and neutral line currents through two current transformers, and use the larger current as the basis for electric energy measurement, so as to prevent short-circuiting of current wires and other ways of stealing electricity.
