How can an electronic meter save electricity, and can a power saver save electricity for a meter?

It's absolutely fake, it's definitely a lie, and they will test it on the spot when they sell energy-savers: you see that their meters can go slowly, but you don't know that they have already done something to the meters! When you buy it back, it won't work!

In fact, the power saver they sell is a capacitor, what is the use of the capacitor for our electrical equipment? Do you know? Because I have been specializing in electrical for many years, I have some understanding of the performance and function of capacitors.

In fact, capacitors have a certain effect on our electrical equipment (for large enterprises, for our household electricity is not needed at all), this role depends on what electrical appliances are used. In our daily use of AC volt Hezhi power supply, the capacitor can improve the electrical quality of linear electrical appliances, because the main function of the capacitor is to transport reactive energy back and forth on the road, which can improve the quality of electrical energy on the electrical circuit, but for our household appliances, the electric energy saved is insignificant, basically zero. This can only be said for linear devices.

But it's useless for resistive devices. Our household appliances are classified as linear equipment and resistive equipment, linear equipment is: electric motors, electric fans, air conditioners, refrigerators, vacuum cleaners, etc.

Resistive equipment is: light bulbs, electric stoves, electric water heaters, induction cookers, etc. Therefore, this power saver is useless on the electronic watch and mechanical watch we use.

Won't you save it if you take the battery off Hehe.

Saving power does not save electricity.

When an external capacitor (the so-called "energy-saving power-saving") is connected, the speed of the meter is much slower under the impedance of the LC circuit.

In fact, "energy saving and power saving" is an ordinary capacitor in the final analysis, which is impossible to save electricity, but will cause disasters or other accidents because of its possible problems such as "insufficient withstand voltage", and it is very likely that something will happen; It is advisable not to believe the nonsense of street vendors, but to believe in science, the law of conservation of energy, and basic common sense of life.

And the electric line in the family is shorter, the electrical load is not too large, the wire loss is basically negligible, at the same time, the watt-hour meter is not to measure the reactive energy, only to measure the active energy, for this reason, the so-called power saver can not save electricity. The power saver is actually a capacitor, and the power consumption of electrical appliances has active power and reactive power, and the addition of power saver can indeed reduce the current, but it only increases the power factor and reduces the reactive power. The final meter is the measured active power, so adding power savers is good for the entire power grid, but it cannot reduce the metering of the meter.

If the so-called power saver provides to offset the weak loss of the wire caused by this part of the reactive current, it is also considered to be energy-saving, when it is used improperly (there is no inductive load), the blind application will reverse this part of the reactive current to the power supply network, increase the loss of the power line, and become a power consumer (the energy consumption is very small).

Kiss! Hello, happy to answer your <>

A pro-meter 40 ampere is more power-efficient than a meter 20 ampere. Because the unit of measurement of the meter is small, its sensitivity is higher, the household appliances are turned on, the current is clear, and the meter turns fast. A meter with a large unit of measurement is relatively less sensitive, and when the current drives it, it rotates slowly.

According to experts, there is no difference in the amount of electricity under the same load and in the same time; The speed of the meter is related to the pulse burning constant. If it is a mechanical meter, then a 40A meter will be more cost-effective than a 20A meter, because the smaller the unit of measurement of the meter, the higher its sensitivity and more accurate measurement. If it is a smart meter, then there is no difference between 20A and 40A, and the sensitivity of the smart meter is the same no matter how large the capacity is.

However, if the amount of electricity used in the home exceeds the rated maximum flow rate of the meter, then the wheel is prone to errors, and there may be overbilling or underbilling. Hope mine can help you <>

Do you have any other questions?

Appliances do not save electricity. The economizer has only one capacitor and a circuit board on which there is an LED bulb and several resistors. Such capacitors cannot save electricity at all, and the overall cost of power savers is low, which may only cost a few tens of yuan.

The capacitors installed in the power saver can only improve the power factor, which has a certain effect on voltage protection and harmonic suppression. However, the power saver is not liquid closed at all to save electricity, because the power of the appliance is basically unchanged, and the meter is the product of the electric power and time.

In addition, the power saver itself is electrified, and it will consume electricity when used for a long time. What's more, if the economizer uses inferior capacitors, long-term use may increase the line loss and heating hazards of the original line, and even cause fire hazards.

1.When buying household appliances, pay attention to the standard level of "energy consumption", which is the best and most energy-saving;

2.It is best to use LED lamps for home lighting, which can save more than 30% of electricity compared with energy-saving lamps.

3.Indoor wiring should be done with a larger cross-section to minimize "line loss".

4.Pay attention to all the remote control electrical appliances in the car, when not in use, turn off the main switch or unplug, because if the remote control is turned off, it will continue to consume power at the power of 2 3w appliances!

5.Pay attention to saving electricity and develop good habits such as turning off the lights.

1) Household power saving: turn off the lights at will, turn off the power in time after using electrical appliances, turn down the volume of TV, stereo, etc., set the temperature of the air conditioner at 26 degrees Celsius and above in summer, etc.;

2) Office power saving: In terms of lighting electricity, natural light can be used to turn on electrical appliances as little as possible. When you need to turn on the lights, try to avoid turning on all the lamps and keep enough lighting brightness.

Turn off the lights, turn off the air conditioner, computer and other electrical equipment during lunch break and after work. When leaving the office for a long time, the main switch of low-voltage power supply should be turned off;

3) Enterprise energy saving: reduce transformer capacity, make full use of the peak-to-valley electricity price difference, strengthen reactive power compensation, and adopt other energy-saving technologies.

Hope we are helpful to you.

There are several suggestions for smart meters to save power:

1.Remotely control the electricity meter and monitor the electricity consumption in each area in real time. Timely detection of electricity waste, timely handling of posture and noisy files, power saving is more intelligent;

2.If it is a peak-to-valley meter, it is recommended to use electricity at the "valley" time. Because the electricity price at this time is the lowest, the electricity price of the bent branch is sharp, peak, flat and valley;

3.Household appliances, do not start frequently. The starting current is several times that of normal operation, especially for air conditioners, washing machines, etc.;

4.It is recommended to unplug the plug when there is no mess with the electric footprint. Because of the new smart meter, when designed, the starting current is 4/1000 of the calibration current, that is, if the current of the energy meter is 5A, when the load current is 20 mA, the energy meter will be measured normally.

And the old mechanical watch, not necessarily at this time does not turn at all.

There are several suggestions for smart meters to save electricity:

1. Remotely control the electricity meter and monitor the electricity consumption in each area in real time. Timely detection of electricity waste, timely treatment, power saving more intelligent;

2. If the peak and valley destroy the bridge meter, it is recommended to use electricity at the "valley" time. Because the electricity price at this time is the lowest, the electricity price is sharp, peak, flat, and valley;

3. Household appliances, do not start frequently. The starting current is several times that of normal operation, especially for air conditioners, washing machines, etc.;

4. It is recommended to unplug the plug when you don't use electricity. Because of the new smart meter, when designed, the starting current is 4/1000 of the calibrated current, that is, if the electric energy meter is 5A, when the load current is 20 milliamperes, the electric energy meter will be measured normally. And the old mechanical watch, not necessarily at this time does not turn at all.

Meter savers do not save electricity.

The meter saver is mainly composed of capacitors, thyristors, coils and insurances. Capacitors mainly play the role of reactive power compensation for motor loads such as refrigerators and air conditioners. For the user, it is metered that there is a utility of electricity, so it will not save power.

The so-called power saver in our hands is actually just a capacitor. The use of capacitors can help us achieve the purpose of saving electricity, but the installation of capacitors will be configured in many electrical appliances, so we do not need an exceptional capacitor to help us. And the connection of an extra capacitor may also cause safety hazards in our Yuling circuit.

Circuit principle: In the circuit, the load (that is, the power consuming thing) can generally be divided into: pure resistive (such as light bulb), inductive (such as motor), capacitive.

The inductance and capacitor in parallel can cancel each other out. In general, power consumption due to increased inductance or capacitance is useless.

In the circuit design, the reactivity of the circuit should be minimized, so that the load behaves as pure resistivity, which is commonly known as impedance matching. This stabilizes the circuit and saves power.

The household appliances we use are usually inductive due to the power consumption of electric motors, such as: air conditioners, refrigerators, washing machines. Therefore, we will give them a capacitor in parallel to offset its inductance and achieve the purpose of power saving. <>