installation method A single-phase electric meter has only one live wire and one neutral wire, that is, a household electric meter with four interfaces. Connection method: from left to right, the live wire connected to the leftmost, the live wire connected to an interface, and the zero wire connected to it; the last one is the zero wire connected to the rightmost... Meter reading Electricity meter, short for electric energy meter, is a meter used to measure electrical energy, also known as watt-hour meter, fire meter, watt-hour meter, kilowatt hour meter, and refers to a meter that measures various electrical quantities. For electric meters, everyone may feel familiar and unfamiliar. Everyone has at least one electric meter in their home. However, many people only know that an electric meter is a meter used to measure the number of electricity, and do not know how to look at the meter. Therefore, in our real life, we often see that some people pay a few kilowatt-hours of electricity, that is, a few dollars. The electrician of the watch clashed and even refused to pay the electricity bill. Here is how to look at smart meters, and how to look at meters? There are four ways: The first type: the general direct-entry single-phase electric meter and three-phase electric meter can directly read the number minus the last reading to be the electricity at this stage. The direct-entry meter has a thicker inlet line, and careful observation has not passed Transformer connection. The second type: a three-phase electric meter connected by a current transformer connection method. The wiring of the electric meter has 10 wires. It is necessary to observe the current ratio of the connected current transformer. There is a number on the nameplate of the current transformer. If the ratio is marked by 5, such as 100/5150/5, etc., the number read on the meter multiplied by the current ratio is the measured amount of electricity. To be precise, the strain loss and line loss must be added. The third type: how to look at the electric meter? The single-phase electric meter measures the electric quantity of three-phase electricity. The electric quantity reading method is to directly connect the electric meter to read the number on the electric meter and multiply it by 3. If the electric meter connected through the transformer is to read the meter number multiplied by the transformer current Multiply the multiple by 3. Fourth: The smart meter has only one LCD screen. If it is single-phase, it will directly display the total power and remaining power, and you can read it directly. If it is an IC card meter, only the LED display is a single-graphics meter. Then there will be a small red dot on the meter. If the red dot jumps to the total use position, it means the total use, and skips to the remaining position is the surplus. With dual graphics cards, you can read either above or below. Three-phase prepaid meters have direct readings, and the readings of mutual inductance meters are multiplied by the transformer magnification. Zhejiang Tepsung Electric Meter Co., Ltd is a professional manufacturer and supplier of digital kWh meter . The measurement precision and accuracy of the meter strictly comply with national standards. Please consult for detailed information: https://www.yhddb.com/