installation method
A single-phase electric meter is an electric meter with only one live wire and one neutral wire, that is, household electricity, and four interfaces. Connection method: From left to right, the leftmost incoming firewire, come over an interface to receive the livewire, and then come over the incoming zero wire; the last one, that is, the rightmost zero wire ...
Meter reading
Electric meter, short for electric energy meter, is an instrument used to measure electric energy. It is also called watt-hour meter, fire meter, electric energy meter, kilowatt-hour meter, and refers to an instrument that measures various electrical quantities. For electric meters, everyone may feel familiar and unfamiliar. Everyone has at least one electric meter in their home. But many people only know that the meter is a meter used to measure the number of electricity, and do not know how the meter looks. Therefore, in our real life, we often see some people ordering a few degrees of electricity, that is, a few dollars, and copying The electricians in the table conflicted and even refused to pay the electricity bill. Let me tell you how to look at smart meters and how to look at them? There are four ways:
The first type: the general straight-type single-phase electricity meter and three-phase electricity meter can directly read the number minus the previous reading to be the electricity at this stage. The straight-type electricity meter has a thicker line, and careful observation does not pass Transformer connection.
The second type: a three-phase electric meter connected by a current transformer connection method, the electric meter wiring has 10 wires, to observe the current ratio of the connected current transformer, the nameplate of the current transformer is, it is a number Ratio 5 is marked, such as 100/5150/5, etc., the number read on the meter is multiplied by the current ratio to measure the amount of electricity, and accurately add variable loss and line loss.
Third: What do you think of the electricity meter?
Single-phase electricity meters measure the electricity of three-phase electricity. The electricity reading method is a direct-connected electricity meter. The number on the electricity meter is multiplied by 3. The multiple is multiplied by 3.
The fourth type: the smart meter has only one LCD screen, if it is a single phase, it will directly display the total power and the remaining power, and the direct reading can be. If it is an IC card meter, only the luminous tube display is a single graphics card. Then there will be a small red dot on the meter. The red dot jumps to the total use is the total use, and jumps to the remaining there is the remaining. The dual graphics card can be read above or below. The direct reading of the three-phase prepaid electricity meter is direct input, and the reading of the mutual inductance type is multiplied by the multiplier of the transformer.
Zhejiang Tepsung Electric Meter Co.,Ltd . was established in 1985. We focus on the field of electronic energy meter . We have established a mature and professional team in instrument design, production and sales (pre-sales and after-sales), which has been widely praised at home and abroad. Welcome to consult and purchase: https://www.yhddb.com/product/electronic-kwh-meter/
