Is an electric meter saver useful? Can a household electric meter saver really save electricity?

Is the electricity meter saver useful?

Recently, a kind of electricity saver claiming to save more than 30% of electricity is quite popular on the Internet, and many people are using it mind. Can a household meter saver really save electricity? I specially purchased a 58 yuan household power saver from the Internet, and asked a professional electrician to do an experiment. The electrician connects the power saver to a power strip, and then connects the power strip to a power socket that can measure power, current, and voltage, and then uses home appliances of different powers for testing.

The electrician first connected the hair dryer to the circuit. When the power saver was plugged in, the measuring instrument showed that the instant power of the hair dryer was 1018 watts. When the power saver was unplugged, the instant power of the hair dryer was still 1018 watts. Nothing has changed. The instant power of the hair dryer stayed the same for the two minutes it was plugged in. Subsequently, the ventilation fans and light bulbs with relatively small wattages were measured separately. The results showed that the instant power before connecting to the power saver was 40.14 watts, and the instant power of connecting to the power saver was 39.75 watts. Experiments show that the power saver does not affect the normal consumption of electrical appliances.

Relevant persons said that the current application of power saver in household circuits is seldom, and the most application of power saver is in the industrial field. The structure of power-saving facilities in the industrial field is relatively complex. The price of a set of industrial power-saving equipment is tens of thousands of yuan, and the power-saving effect is only 5%. Household power savers on the market, claiming that the power saving effect can reach 20%-50%, are definitely not reliable.

From the perspective of the law of conservation of energy, this kind of power saver sold on the Internet will not only not save electricity, but will generate more power consumption, and this kind of power saver itself will also generate heat. will cause additional power consumption. It is a good thing to want to save electricity, but many of these energy-saving products are three-nothing products. It is recommended that consumers do not believe in such products, so as not to be deceived. Citizens who want to save electricity can buy more energy-saving electrical appliances, use low-power electricity, and develop the habit of turning off lights and electrical appliances.

In addition, the meter saver does not really reduce energy consumption, but through illegal means to make the meter measurement deviation to achieve the purpose of stealing electricity, and according to the provisions of the electricity supply regulations, this is private The act of modifying the meter will definitely be punished. Energy-saving devices are actually power-stealing devices. If you modify the meter privately, if the amount of electricity stolen is too large, you will also be held legally responsible. Therefore, citizens who want to buy power-saving devices can wake up.