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Multi-user electricity meter manufacturers describe that multi-user electricity meters have overload protection:

Views: 信息来源:山东科大中天电子有限公司 发布时间:2017/1/30 Source of information: Shandong University of Science and Technology Zhongtian Electronics Co., Ltd. Release time: 2017/1/30
Multi-user electricity meter manufacturers describe that multi-user electricity meters have overload protection:
The whole system of multi-user electricity meter is composed of 7 parts: selection and amplification circuit, A / D conversion circuit, power-off control module, CAN communication module, LED display, memory FM1608, X5045 and single-chip microcomputer AT89C52. When the user uses electricity, the corresponding CT (current transformer) and PT (voltage transformer) generate small voltage signals. The small signals are selected and amplified by the channel selection and amplification circuit, and then converted to the A / D conversion circuit. The digital signal is processed by the single-chip microcomputer (AT89C52), and the data is stored in the FM1608 / X5045. At the same time, the LED displays the power. When there is communication, the single-chip microcomputer uploads the data to the upper computer through the CAN communication module.
Multi-user electricity meter manufacturers have overload protection function. When the user's load exceeds the allowable maximum load, the meter will automatically power off the user. The multi-user energy meter also has an overdraft mode, which can be operated by the user on site and can provide a quantitative temporary power supply, which is convenient for users who are in arrears who are inconvenient to pay their fees in a timely manner.
Multi-user electricity meter manufacturers are welcome to call for consultation, if you want to know more, then follow us!

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