How to check the previous voltage of the smart meter?

1.How to look at the general electricity meter Direct single-phase meter and three-phase meter, you can directly use the number read this time to subtract the last reading, and the subtracted number is the amount of electricity at this stage.

2.Three-phase electricity meter, to read the electricity consumption by observing the current ratio of the connected current transformer, under normal circumstances, the name plate of the current transformer is on it

If you want to check the previous voltage of the smart meter, I think it should be based on the power you have used, but it is generally difficult to check.

If you want to check the previous voltage, you have to turn the previous data out.

: Smart meters generally speak of watt-hour meters. It is used to measure the electrical power consumed by a circuit, and does not measure and display the voltage value.

Now that we are smart meters, we can also find out the previous pad pressure of more intelligent meters, or can see everything before, I think it will also help you.

There is a row on the top of the smart meter that shows the voltage.

This situation can be found in the history. You can search it inside.

How to check the previous voltage of the smart meter? You can find a professional to check for you or you. You can check it on the Internet and find out how to check it.

How to check the previous voltage of the smart meter? There should be a history kept, right?

How to check the previous voltage of the smart meter? Fit. Didn't he say it all?

The smart meter can check the previous voltage.

What was the previous voltage when I was a watch? If you look at what the voltage of our head is, you can look at it for a while, and it is generally 220 volts.

How to check the previous voltage of the smart meter? This specific should be checked for information in this regard, and I may find out about it on the Internet.

If you want to check the smart meter, you shouldn't be able to check it like that before.

The smart meters installed in the residential users belong to the single-phase meter, which corresponds to the concept of the three-phase meter, which is installed in the meter box and has been powered on and works normally, from the appearance, every few seconds (the default is 5 seconds) the screen will update the display page; In addition, there is a button on the housing that can be used to update the display page with each press.

Generally speaking, the first screen after powering on is the date, how should the display screen of the electricity meter be handed over to everyone here, because this LCD screen trace is a character type, so it depends on the combination of existing characters to read, look at the picture: at this moment, the reading method of the screen is the current time.

Press the button and the screen goes to the second page of the time screen: the current time is 13:41:39

After each key operation, it will come to the next screen, the current page is the current total power, this screen is what everyone is most concerned about, that is, how much electricity is used by the meter at home! Because this is a new watch, there are no words, and there will be readings at home.

Because some places have implemented time-of-use rates and tiered electricity prices, regardless of whether they are used locally or not, the meter is to support this function, so the back screens are generally the electricity display of the four rate periods of "sharp", "peak", "flat" and "valley".

<>Generally speaking, the meter also displays the electricity consumption of the previous two months, so the back screens are generally the electricity consumption information of the previous month and the previous two months.

<> if you see such a strange two screens, a total of 12 digits of the number combination, please don't be surprised, this is the ID number of this meter, is the only identification that runs in the power grid, I have this on hand is 12 1, of course not regular, your home is a more formal ID number.

<> the rest of the screens are all like this,There is the current voltage,Current,Power and other project information,The views are the same,Because the display items in each place are not the same,Here is no longer a demonstration,If necessary, the corresponding article will be issued to answer。 Once all the displays are displayed, you will return to the first screen and start over. I also borrowed from other people's meter reading methods, I hope it will be helpful to you.

The voltmeter reading of 0 3V and 0 3A range is the reading of a 10-degree meter, and the reading rule is simple, just add an estimated reading after the accuracy.

1) Observe whether the pointer of the voltmeter is on the zero line, if not, you can use a screwdriver to adjust the adjustment nut under the dial so that the pointer points to the zero line.

2) Estimate the size of the measured voltage, choose the appropriate range of the voltmeter, the measured voltage value is about equal to 70% of the range, the measurement effect is the best, if the size of the measured voltage can not be estimated, you can try from the maximum range as scattered.

3) After selecting the range, the voltmeter is connected in parallel at both ends of the measured voltage circuit, so that the current flows from the "+" line binding post, and flows out from the "-" binding post, if the "+" binding post of the voltmeter is reversed, the pointer of the voltmeter will swing in the opposite direction, so that not only can not measure the size of the voltage, but also may break the pointer of the voltmeter.

4) Connect the voltmeter into the circuit correctly, do not rush to close the switch for measurement, use the moving contact of the switch to try the static contact of the switch, and observe the pointer of the voltmeter. If the voltmeter pointer does not move, it means that there is an open circuit in the circuit, and the connection of the circuit should be checked, especially whether the binding post is in good contact.

If the pointer of the electric rubber beam pressure gauge is deflected in the opposite direction, it means that the "+" binding post of the voltmeter is reversed and should be reconnected. If the voltmeter pointer is deflected too much and exceeds the maximum value of the selected range, it means that the selected range is small and should be replaced with a larger range. If the deflection of the voltmeter pointer is too small, not even to a small range, it means that the selected range is large and should be changed to a smaller range.

Should wait for the voltmeter pointer to stabilize before reading, reading should let the line of sight through the pointer and the dial perpendicular, now some voltmeters change to use liquid crystal display, to the reading has brought greater convenience.

The voltmeter can be directly connected to the two poles of the power supply to measure the voltage of the power supply, when the power supply is working, it provides a certain voltage value to both ends of the circuit, and the voltage value provided will be reduced with the extension of the use of the branch, so the voltmeter is often directly connected to the two poles of the power supply to measure the voltage value provided by the power supply.

Now smart meters have entered thousands of households, so how to see smart meters has become the most urgent for some users to know, in fact, the new smart meters are much more powerful than the previous mechanical meters, and the data can also be updated in time, now let's take a look at how smart is the degree.

How to look at the degree of smart meter, in fact, the method of looking at the meter is very simple, there are two buttons on the right side of the meter, each time the button is pressed, different words and numbers will be displayed, as long as the owner sees the meter showing "positive, active, total" can stop pressing, this number is the total amount of electricity used by the owner. You can also find out the amount of electricity used by yourself in different periods according to the text of the words "sharp", "peak", "flat" and "valley" displayed. In order to understand the electricity consumption of their own homes, they can more intelligently grasp the electricity consumption time of self-cultivation and play a planned method of electricity consumption.

How to look at the degree of a single-phase smart meter.

The single-phase shouting Zhongnian smart meter is our household electricity meter in the ordinary sense, that is, the smart meter that the State Grid replaces for us, this kind of meter is generally in the stairwell, so you must first find the smart meter of your home.

After finding the meter, we can see that there will be a button on each smart meter, which is used to query the data in the smart meter, and the data displayed in the meter will be updated every time we look at it.

Press it and you'll see the time, date, etc.

If you continue to press it, you can also see the current price of electricity in the city.

Press it again, you can see how much Zheng Qian money is still in the smart meter, and the general amount is not much, and the alarm light of the smart meter will turn on.

How to look at the degree of three-phase smart meter.

The method of seeing the degree of the three-phase meter is actually the same as that of the single-phase meter, and there are buttons on the three-phase meter, but the three-phase meter can be turned up and down, while the single-phase meter cannot be turned up, because the three-phase meter will have more data to view, if there is no flip button, it will take time to turn over the data in the whole system.

How to look at the degree of a smart meter with a transformer.

The three-phase smart meter needs to be connected to the current transformer, and it needs to be multiplied by the multiple of a transformer to be the real degree of the three-phase meter, and the transformer generally has specifications on it, for example, the current ratio of the transformer in the figure below is 50 5A, indicating that the current ratio of the transformer is 10 times, and the degree of the three-phase meter is to read the value and then multiply it by 10.

The method of correctly reading the voltmeter: (two "see clearly", one "stable") (a) first clarify the range of the voltmeter, that is, see the range value of the terminal post;

b) Determine the graduation value of the voltmeter, that is, see the voltage value of each small grid and the voltage value of each large grid;

c) Wait for the voltage to stabilize before reading, that is, the pointer of the voltmeter indicates that the reading is stable before reading.

I hope it helps you, and if you have any questions, you can ask them

I wish you progress in your studies and go to the next level! (*

For traditional non-smart meters, the advantages of smart meters are obvious, small size, high precision and other advantages are obvious, intelligent meters are also a trend, Yongtailong's smart meter friend project feels good in use.

Smart meters, generally we only take the active number, that is, look at the total active number displayed above, which is equivalent to the number of meters of the old-fashioned meter, whether it is a single-phase meter or a three-phase meter.

2. If you want to check the power by yourself, press the white button under the meter.

3. After each keystroke, you will go to the next screen, and the page is the current power usage.

4. Some places have begun to implement tiered electricity prices and time-of-use rates, so the back screens are the electricity consumption displays during the four rates of sharp, frontal, flat and valley.

Question: I asked how much electricity is used in a year, and what do you think?

That means that there hasn't been much change

Question: Is this the total battery?

Ask what this is.

How to read a smart meter at home.