How To Choose A Smart Meter Manufacturer? Professional Recommendations For You

How to choose a single phase smart energy meter manufacturer? I believe that this is the most concerned issue for many purchasing personnel in properties, schools, and businesses. There are currently many companies that make electric meters. It can be said that the domestic smart wifi energy meter market is mixed with good and bad, and the quality is uneven. How to choose the brand model with the best cost-effectiveness under the condition of equal quality tests everyone's judgment and execution. The following content is what I have learned from consulting a professional electrician, and I hope it can be helpful to everyone.

What kind of three-phase four-wire meter manufacturer is the most qualified?

Every year, State Grid Corporation of China conducts project bidding for various types of meters, such as three-phase four-wire meters. Interested meter manufacturers will carry out research and development, design and production of single meters according to requirements, and then need to pass a series of tests. The first is to do a low-temperature test, put the electric energy meter into the refrigerator, and test it at a low temperature of minus 30 degrees to see whether the internal time and measurement are slow and fast. Then, the high-temperature test is to turn on the power and put the electric energy meter into a high-temperature 80℃ aging box for testing. The test data must be within the requirements of the State Grid.

Finally, the three-phase four-wire watt-hour meter manufacturers take their watt-hour meters to the local quality supervision bureaus for acceptance. The acceptance process is very strict. The quality supervision bureau will conduct high and low temperature tests on the watt-hour meters, as well as some routine tests. Only after the quality supervision bureau has passed the acceptance, can production and bidding be carried out.