Is the energy consumption of the meter equal to the forward and reverse rotation 5

In the case of mechanical energy meters (except for three-phase and three-wire), the energy consumed by the forward and reverse reversals is equal. Because mechanical watches are all inductive. However, the situation is more complicated for electronic watches, which can be used for a variety of different functions through a large number of integrated circuits.

For some cases where there is no need to record the reverse power supply, it can be designed to be correctly metered regardless of the forward and reverse direction of the current. It doesn't matter if it's reversed or forward.

However, the situation of forward and reverse rotation of three-phase three-wire mechanical electric energy meter is very complicated. It's hard to explain it clearly, and even if the most authoritative person comes to explain it, you probably won't be able to understand it. I'll explain a little bit to you about my own abilities.

The formula for calculating the amount of electricity in the three-phase four-wire electric energy meter (note that it is not three-phase three-wire) is: "UA IA A phase power Inso plus UB IB B B phase power Inso plus UC IC C phase power inso", to put it bluntly, the power of each phase is calculated and added.

However, the power algorithm of the three-phase three-wire mechanical electric energy meter is very different, and I can't remember the formula clearly (I am afraid that people will laugh if I write it wrong), because it is not commonly used. His algorithm does not require phase B current, as long as the current of phase A and phase C, the two voltages used are UAB and UCB, respectively. I can't explain it without vectors.

And the power factor used is not the actual power factor. In fact, the three-phase three-wire meter is only measured by phase A and phase C, and if the phase is disconnected, it is not to reduce the electricity by half, only the user in the process of electricity consumption of the three-phase power factor is reduced by half when the power factor is 1, in fact, in the power system, there are very few people who can explain it clearly. So you say that if the incoming and outgoing lines are reversed, all are reversed or a certain phase is reversed, the impact on the measurement in these cases is quite complex.

It's hard to explain it simply.

I'm just going to give you a brief explanation of my understanding, which is not necessarily true, and remind you that you don't have to trust everything on the Internet. There are many cases of good intentions doing bad things, you still go to read books, and generally the correctness of publishing books is greater, although some people say that it is better to believe in books than to have no books.

There is no problem with the inversion of the current meter. In the case of an electronic multi-function meter, the reverse connection between the incoming and outgoing wires will be recorded in the reverse of the meter, which is the same as the power consumption of the correct wiring.

If the incoming and outgoing lines of the mechanical meter are reversed, the meter generally has a reverse device, and it will not become 99876 after 00000 reversal.

The energy expenditure of forward and reverse rotation is equal.

It is estimated that it will be equal. However, the normal installation of the meter will not be reversed.

It's the same, it's just the wrong wire, and the current is the same!

Is the forward rotation of the meter the same as the reverse rotation?

Swap the two incoming and outgoing wires, and change the incoming line to the outgoing line, and then reverse it, but the new watch (electronic) seems to have anti-reversal. The rest is to make it slower and slower, some add magnets, and some adjust the internal parameters. However, it is not recommended to use these methods, you can use energy-efficient products to reduce your electricity consumption.

Mechanical watches. You can do the reversal of the meter turntable, first look at the principle of his rotation: 1 meter to get a rated voltage.

Supply voltage coils. 2. The current coil should have a current flowing through. Both coils have a head and a tail, and when the current and voltage are both forward, the meter will rotate forward, but as long as one of them is reversed, the meter will be reversed.

Similarly, if you add forward voltage, you need to turn off the voltage of the meter and the current coil of the current coil, and then connect a suitable current limiting resistor to the current coil of the meter from a small transformer, you can make the meter rotate, and the speed of rotation is determined by the voltage and current limiting resistance of the small transformer, and the steering can be changed by inverting the voltage or inverting the current.

Precautions. It is illegal to steal electricity.

This is just an experiment, there is a certain danger, don't use it to steal electricity.

First of all, it is illegal to turn the meter upside down or not, and it will be subject to the "Electricity Law" and punishment, so you have to be careful. 1. About the inverted ** electronic meter reversal can only use open cover, manual dialing, people without professional knowledge will damage the appearance of the meter, it is easy to find that the meter is passive.

2. The reason why the meter does not rotate is because there is a current flowing from the meter, and you can try to make the current not pass through the meter after you know the principle of the meter rotation, such as changing the line to bypass the meter? You are a household electricity meter, I think you should not think about it, after all, the family does not use much electricity, why bother to bear the charge of stealing electricity (stealing electricity)?

Electrical workers are still very hard.

In the case of a certain power, reduce the voltage and increase the current, the rotation of the meter is due to electromagnetic induction, and the larger the current, the faster the rotation. Change the internal components or you use more high-power appliances. .

Increase the power 1Increase the power 2Change the internal structure to supply power to the outside.

If a free charging ,.. is provided

Today's smart meters can't be reversed. Don't have a bad idea.

It seems that you are going to cheat, generally speaking, the original meter of the mechanical watch in the past can be reversed, and the number of words will be reduced, and the current meter is impossible to reduce the number no matter how you go forward or backward.

The one who watched the tea took the tea and ate it. Guo Shuban said: "Mrs. Jin has always been in the house, when did you come to Jiangnan?"

Although it was 'really fake', he also lost a few taels of silver. I was bored at home, because Mr. Yun Si Xun was an old friend of Beijing, so I came to Yangzhou to see him, and I recommended him on the box and sent a few hundred taels of silver.

2. After the inlet line is connected to the outgoing line, the meter can be reversed. Precautions: Be sure to ensure that there will be no leakage after the power is off.

Dry lift extended data: meter reading method: 1. The general straight-forward single-phase meter and three-phase meter can directly read the number minus the last reading for the electricity at this stage.

2. The three-phase meter is connected by the current transformer connection, and the wiring of the meter has 10 wirings, and the current ratio of the connected current transformer should be observed, and the name plate of the current transformer is marked with a number ratio of 5, such as 100 5150 5, etc., the number read on the meter is multiplied by the current ratio and the amount of electricity is measured, and the accurate loss and line loss are added. 3. The single-phase meter measures the amount of three-phase electricity, and the power reading method is to read the number on the meter by multiplying it by 3 in the way of connecting the meter directly, if the meter connected by the transformer needs to read the meter number multiplied by the current multiple of the transformer and then multiplied by the smart meter, there is only one LCD screen, if it is a single phase, the total power and remaining power will be directly displayed, and the direct reading can be.

Dear, hello, I am happy to answer for you: how to make the meter invert Answer: The electronic meter reversal can only be used to open the cover, manual dialing, no professional knowledge of the loss of the person will damage the appearance of the meter, it is easy to find that the meter has been passive to change the grip of the two inlet and outlet lines, the incoming line is changed to the outgoing line, it is reversed, but the new meter (electronic) seems to have anti-reversal.

The rest is to make it slower and slower, some add magnets, and some adjust the internal parameters. However, it is not recommended to use these methods, you can use energy-saving products to reduce electricity consumption, the mechanical meter can do the meter turntable reversal, first look at the principle of his rotation: 1 The meter should get a rated voltage supply voltage coil.

2. The current coil should have a current flowing through. Both coils have a head and a tail, and when the pin flutter and voltage are both forward, the meter will rotate forward, but as long as one of them is reversed, the meter will be reversed. Similarly, if you add forward voltage, you need to turn off the voltage of the meter and the current coil of the current coil, and then connect a suitable current limiting resistor to the current coil of the meter from a small transformer, you can make the meter rotate, and the speed of rotation is determined by the voltage and current limiting resistance of the small transformer, and the steering can be changed by inverting the voltage or inverting the current.

Hello, happy to answer this question for you. The specific operation method of reversing the meter is as follows:1

Swap two inlet and outlet wires, change the incoming line to the outgoing line, and reverse it, but the new watch (electric Sakura Nazi type) seems to have anti-reversal. The rest is to make it slower and slower, some add magnets, and some adjust the internal parameters. However, it is not recommended to use these methods, and energy-saving products can be used to reduce electricity consumption2

The mechanical watch can be reversed by the meter turntable, first look at the principle of his rotation: 1. The meter should get a rated voltage supply voltage coil. 2. The current coil should have a hail loss of current.

Both coils have a head and a tail end, when the current and voltage are forward, the meter will rotate forward, but as long as one of the ridges is reversed, the meter will be reversed. Similarly, if you add forward voltage, you need to turn off the voltage of the meter and the current coil of the current coil, and then connect a suitable current limiting resistor to the current coil of the meter from a small transformer, you can make the meter rotate, and the speed of rotation is determined by the voltage and current limiting resistance of the small transformer, and the steering can be changed by inverting the voltage or inverting the current.

Summary. Theoretically speaking, the degree of reverse rotation of the watt-hour meter will be the same as that of forward rotation, but in fact, the inverted rotation error of the meter will be much greater than that of forward rotation. However, under normal circumstances, the watt-hour meter will not be reversed, even if you turn the incoming and outgoing lines upside down, it will generally not be reversed.

If the meter turns positive and negative upside down, will the degree of electricity be the same?

Hello, I have seen your question and am sorting out the answer, please wait for a while Theoretically speaking, the degree of the inverted rotation and forward rotation of the watt-hour meter will be the same, but in fact, the inverted rotation error of the meter will be much greater than the forward rotation. However, under normal circumstances, the meter will not be reversed, even if you turn the incoming and outgoing lines of the matching hui upside down, it will generally not be reversed. Only when the reactive power loss of the first channel is much greater than the active loss, the watt-hour meter can be reversed.

Meter reversal can be due to electricity theft, aging meters, and the use of high-power appliances.

Meter reversal may be a manifestation of electricity theft, and some people will take "electricity theft" behavior in order to save money or get more profits, and at this time, they may use their hands and feet to reverse the meter. Sometimes the reversal of the meter is caused by the mechanical problem of the meter, such as the failure of the mechanical part such as the transmission gear, then you can use the skill of hand-cranked vehicle to solve the reversal of the meter.

Meters that have been used for too long may malfunction, and reversals can also be a sign of aging of the meter. If the meter has been used for a long time at home, it is necessary to pay attention to whether there is a large error in the meter reading and whether the reading is reversed. If the meter is reversed due to aging or mechanical failure, the meter needs to be replaced.

When using electrical appliances at home, if high-power appliances are used, such as air conditioners, electric heaters, etc., it will cause excessive electrical load, which may cause the meter to be reversed. If the reversal of the Keiyu meter is caused by a faulty line, you need to find a professional electrician to check and fix it.

Meter lifetime

The service life of the meter is generally 8-10 years, the State Grid completed the last round of 100 million smart meters in 2009-2015, and the current batch of electricity spike meters began to enter the replacement period, and it is expected that the roll upgrade of the Liang family may maintain an upward process of 3-4 years.

The service life of smart meters is generally 15-20 years, but the power supply company will generally replace it for you in 5 or 10 years, so there is no question of service life.

In general, the smart meter in the user's home should be replaced every 6 to 8 years or so. Smart meters generally have a service life, when the service life expires, the accuracy of the smart meter statistics will be problematic, in order to avoid affecting the normal collection of electricity charges, the power supply bureau will generally arrange staff to help users replace new smart meters.