Meter readings, call for help 50, meter readings, ask for help

1.The meter can display a total of 6 digits, for example, last month was 043452, this month is 043725, and the last digit is the city Then you used the kilowatt-hour of electricity. So your appliance meter is degrees.

2.If the last digit of your meter is black as before, and it is a 3-phase 3-wire active energy meter, there is no decimal point on the side and below the last digit of the meter, and the so-called "electric rate" is *1 *10 *100, which is 713 degrees, no problem.

To know whether the first digit on the right is a decimal or a single place, it is necessary to see whether the box is red, if it is red, it is a decimal place, otherwise it is an integer unit, as shown in the following figure: Table 1 is a degree, Table 2 is 1 degree.

The last digit of the meter is one decimal place. The penultimate word is the single digit, then ten, hundred. Push forward.

If 3 is red, it is a decimal place.

If there is a circle below the 713 degrees of rotation.

In fact, it will be seen in ten minutes.

You should look at the number that the meter showed when you moved in, and then look at the meter number now, and subtract it to the number of degrees you use.

If it is (single-phase electronic energy meter), there are 6 digits, and the rightmost number is red, which is the decimal point. The first 5 digits are all black and are integers. For example, the number of the meter is 123456, if it is six digits.

The last digit is red, that is, the meter number after the decimal point, which should be seen as the degree correctly.

The number of core-threading turns, as the name suggests, is the number of wires that pass through the core of the current transformer.

To put it simply, it is a wire that goes around the hole in the middle, and a few turns around it are a few turns.

The current transformer you are talking about is called a core-type current transformer, which can measure the current of a certain phase (a, b, c three-phase electricity). Only one phase can be measured each. Therefore, three-phase electricity needs to be measured separately with 3 transformers, and at this time, your transformation ratio is also 100 5, which does not affect each other.

If you are interested, look for the opportunity to pass 3 phase wires through a current transformer at the same time, and you will find that there is no current on the secondary side of the transformer. (ia+ib+ic=0, here the phasor is added).

The magnification of the current transformer is closely related to the number of turns you wear the core. Because you change the number of core-threading turns, you artificially change the measured primary current of a certain phase of electricity. As a simple example, you measure phase A electricity and assume that phase A current is actually 100 A.

If you pass through a 100 5 transformer and wear 1 turn, then the current measured on the secondary side of your current transformer is 5A. This is the actual situation.

Suppose you wear 2 turns, then it is equivalent to 200A current passing through the current transformer, and the actual current is still 100A

Therefore, the 10A current measured by your secondary current has to be manually changed to 50 5, which is 10 times. That's the right thing to do.

It is equivalent to the principle in mathematics that the numerator and denominator are multiplied by a number, and the value is equal to the original number.

The readings on the meter are:

But the meter of this meter.

2nd place. It seems that there is a problem, and the toggle device of the gear does not seem to push 2 of the second position to the center position and presses.

Normal gauge.

The second should be and. 3rd place.

4th place. The same.

The calculation method of the meter degree is = (stop code - minimum) x multiplier.

For traditional mechanical meters, the amount of electricity can be read directly from the reading window, and the readings from front to back are: thousand, hundred, ten, single digits, and the red part behind is the value after the decimal point, which is usually not calculated when looking at the meter reading. Because the device that displays the readings on the meter is a cumulative counter, the value you see now is all the electricity used in the time since the meter was activated.

Note that the readings should be applied to the meters in residential buildings (directly connected meters), and sometimes the meters are connected to the power lines through the current transformer, so the readings should be multiplied by the ratio of the current transformer ki (i.e. the magnification, which is indicated on the transformer).

Don't use 3, if your transformer is 400 5, it is 80 times, directly use the meter reading multiplier, the specific algorithm is: the number of meter readings this month - the number of meter readings last month Multiplier = the practical number of this month. (The meter should be a small meter below 3*3(6)a).

If you are using a smart meter, it is recommended that you can check the current meter readings through the LCD screen on the meter; A string of numbers on the screen will directly display the integer and decimal of the meter reading, the model of the meter is different, and the data displayed on the LCD screen may be different; You can press the wheel display button next to the Tongxiao screen to switch the display interface, and view the data displayed on the LCD screen with the words "current total power" or "current forward active total", that is, the cumulative power consumption of the current meter.

If you are using a mechanical meter, you can see the cumulative electricity consumption recorded by the meter through the numbers in a row of windows on the dial of the meter; In general, the red window represents the decimal part, which is 1 decimal place; The black window represents the integer part, starting from the rightmost part of the call, with the first digit being the single digit, and so on.

If you need to calculate the actual electricity consumption during a certain electricity consumption period, the electricity consumption = the current meter reading - the last meter reading is included in the bridge, if your meter is equipped with a transformer.

It also needs to be multiplied by the multiplier of the transformer.

We hope you find ours helpful.

The electronically displayed electric brother trillion energy meter can be read directly according to the indication, and the unit in front of the decimal point is tens of millions of hours. The black or white numerals in front of the dial of a mechanical energy meter are integer parts in kilowatt hours. The red Xianchun number at the back is a decimal guess, and it is generally not necessary to read it.