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How to read the smart meter correctly

Views: 信息来源:山东科大中天电子有限公司 发布时间:2019/6/17 Source of information: Shandong University of Science and Technology Zhongtian Electronics Co., Ltd.Release time: 2019/6/17

In fact, there are four methods for the comprehensive view of multi-user smart meters . How do you look at the details?

First, the general straight-forward single-phase and three-phase meters can directly read the number minus the last reading is the power at this stage. The straight-entry meter has a thicker input wire, and careful investigation has not passed through the transformer connection.

2. Three-phase electric meters Three-phase electric meters connected by the current transformer connection method. The meter wiring has 10 wires. To investigate the current ratio of the connected current transformers, the current transformers are listed on the trademark. Marked, such as 100/5150/5, etc., the number read on the meter multiplied by the current ratio is the amount of power measured, and the exact loss and line loss are added.

Third, how to look at the meter? Single-phase meters measure the power of three-phase electricity. The method of reading the electricity is to directly connect the meter and read the number on the meter multiplied by 3. If the meter connected through the transformer needs to read the meter Multiply the number by the current multiple of the transformer and then by 3.

Fourth, as long as the smart meter has an LCD screen, if it is a single phase, the total power and remaining power will be directly displayed, and direct reading will be possible. With the help of long-distance communication functions of smart energy meters, users can remotely control various smart loads at home in different places through the Internet or mobile communication networks, such as air conditioners, washing machines, refrigerators, and lighting. Can also complete remote monitoring and alarm. If it is an IC card meter, as long as the LED appears, it is a single graphics card meter. There will be a small red dot on the meter. The red dots will jump to the total use, and the remaining red dots. Dual graphics card, can read above or below. Three-phase pre-paid meters have direct readings for direct entry, multi-inductance meter readings multiplied by transformer multiplier.


Related tags: Multi-User Smart Meter

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