How To Choose the Right Smart Power Meter?
When users purchase smart power meters, specifications are an important consideration. Different application scenarios have different parameter requirements for electric meters. For example, factories and residential buildings have different requirements for smart meters. Therefore, when customers buy a smart power meter, they need to pay attention to three important parameters: voltage, current, and accuracy level. Let's take a look at how to choose the right smart power meter.
Voltage parameters of power meter:
The voltage of the smart meter is divided into low voltage and high voltage. Low voltage has a single-phase voltage of 220V, and a three-phase voltage is 380V. High-voltage has three-phase 3*100V. Single-phase 220V low-voltage smart meters are suitable for household general lighting circuits; three-phase 380V low-voltage and 100V high-voltage smart meters are suitable for industrial production circuits using three-phase power.
Current parameters of power meter:
The current specifications of single-phase smart meters are 5(40)A, 10(40)A, 15(60)A, 20(80)A, 30(100) A, etc., which are suitable for residential users. The appropriate current specification can be selected according to the total power of the household appliance. Before selecting the current specification of a three-phase smart meter, it is necessary to confirm the measured voltage first, and consider the load type and load power to determine the required current specification of the meter and the reserved space. The three-phase electricity meter is suitable for small and medium-sized businesses, industrial and mining enterprises, public facilities, and other occasions.
Precision level of power meter:
Common accuracy levels for smart meters are 0.2S, 0.5S, 1, and 2. Taking level 1 as an example, it means that the allowable error of the meter is within ±1%. For every 100 kWh of electricity, at most, only 1 degree of metering is allowed or less. So, the smaller the value, the higher the level of precision and the more accurate the measurement. Of course, it will be more expensive. Therefore, when purchasing a smart meter, the accuracy level can be selected according to the monthly electricity consumption. For example, factories and enterprises that consume electricity can choose 0.2S-level high precision, and residents can choose a lower precision level for ordinary electricity consumption.
Under the condition that the quality and function are satisfied, pay attention to several important parameters such as voltage, current, and accuracy level when purchasing a smart meter. These inquiries will be answered in detail by the customer service so that the smart meter purchased will not be too wrong.
