The single phase meter is only connected to the live wire, and the meter does not turn

1. Through the electricity meter, the home is connected to a live wire and a neutral line, and suddenly it is found that only one live wire is connected to the home electrical appliances can be used normally, what is going on, so that the meter does not constitute a loop, and the meter does not turn?

This proves that the zero line of your home is repeatedly grounded, and the live wire is connected to the 3 terminals when entering the house, that is, it does not pass through the current coil, and it proves that there is no leakage protector access in your area, otherwise it would have tripped. If there is no leakage, your home can supply electricity normally, but it is not metered (the energy meter does not move).

2. The two wires connected to my house are live, but they can also be used when connected to electrical appliances, is there any bad impact on electrical appliances?

This indicates that the neutral line of the distribution transformer or the upper distribution box is poorly grounded. Generally, there is no adverse effect on household appliances, but when the three-phase load is unbalanced, it is easy to have a neutral point drift phenomenon, which will cause disadvantages to electrical appliances, either high voltage or low voltage!

3. In this way, the meter has always formed a loop, even if the electric meter is not used at home, it is always turning?

In the above situation, the energy meter will not turn, that is, "do not go to the meter"!

1.The meter must be turning, otherwise where does the energy consumed come from? The electrical energy is looped through the live wire, so the meter must be turning.

2.Not sure, it's best to connect the neutral wire.

3.If you don't use an electric meter at home, it won't turn, because it doesn't consume electricity, unless there is a leakage short circuit, but it will trip protection.

The electronic meter is only connected to a live wire, and the zero line does not go to the meter, will the meter go?

The electronic meter is only connected to a live wire and the zero line does not go to the meter, will the meter go dear, hello, 1 electronic watt-hour meter has a voltage converter inside, a current converter, if the incoming and outgoing lines are connected to the fiber live wire, the zero line bypasses the meter. Then the meter has no voltage supply, and the meter cannot work properly. If the incoming wire is connected to the live wire and the neutral wire, the outgoing wire is only connected to the live wire, not the neutral wire.

In that way, the meter can work normally, and the zero line inside the meter itself is short-circuited. I hope I am helpful to you, thank you, and I wish you a happy life! <>

Hello, dear hello, I am very happy to serve you: the three-phase four-wire meter wiring on the meter does not turn may be, it is the voltage piece is not connected, you open the meter cover below, there are three voltage pieces from left to right on the screws of those several binding posts, to ensure that these three voltage pieces are connected, the meter can be tightened to get the voltage, and the meter can be turned. That's the most likely.

1 Possible causes of the failure of the three-phase four-wire active watt-hour meter not rotating or reversing (1) The voltage coil terminal of the directly connected three-phase four-wire watt-hour meter is not connected to the power supply voltage. (2) The incoming and outgoing lines of the watt-hour meter power supply and the load are connected to each other in the wrong order. (3) The voltage coil and current coil of the watt-hour meter are not connected to the corresponding phase in the wiring.

4) The watt-hour meter connected through the current transformer is reversed by the secondary polarity. (5) The neutral line of the watt-hour meter is not connected to the meter. 2 Three-phase four-wire active watt-hour meter does not rotate or reverse maintenance methods and skills (1) Open the watt-hour meter and check the small size of the voltage coil of the three-phase four-wire watt-hour meter 1 The possible reasons for the failure of the three-phase four-wire watt-hour meter does not rotate or reverse (1) The terminal of the voltage coil of the three-phase four-wire watt-hour meter is directly connected to the power supply voltage.

(2) The incoming and outgoing lines of the watt-hour meter power supply and the load are connected to each other in the wrong order. (3) The voltage coil and current coil of the watt-hour meter are not connected to the corresponding phase in the wiring. (4) The watt-hour meter connected through the current transformer is large, and the secondary side polarity is reversed.

(5) The neutral line of the watt-hour meter is not connected to the meter. 2 Three-phase four-wire active watt-hour meter does not rotate or reverse maintenance methods and skills (1) Open the watt-hour meter, check whether the small hook of the voltage coil of the three-phase four-wire watt-hour meter is connected to the power supply voltage, if it is not connected, it should be connected to the power supply. (2) Adjust the incoming and outgoing lines to each other according to the circuit diagram of the watt-hour meter.

3) Correct the wrong connection. (4) The secondary side of the current transformer is generally polar, so the wiring polarity should also be corrected if the current transformer is connected to the watt-hour meter. (5) Check the fault point of the zero line of the watt-hour meter, and connect the zero line of the watt-hour meter.

Summary. Because according to the national regulations, the building electricity is selected from the three-phase five-wire system of low-voltage power distribution system, the ground wire and the neutral line are drawn from the neutral wire of the power supply, the neutral wire of the power supply is grounded, and the neutral wire and the ground wire are connected from the object, so the three-phase four-wire meter can not be connected to the zero line; Because the three-phase four-wire watt-hour meter is not connected to the zero line, it will affect the accuracy of measurement; Because in the three-phase four-wire line, the line voltage is not equal, and the neutral point of the watt-hour meter voltage coil will be offset if the zero line is not connected, so that the metering number of the watt-hour meter will be incorrect.

The three-phase four-wire meter is only connected to the three-phase live wire and not to the zero wire, will the meter go.

Will go. Because according to the national regulations, the building electricity is selected from the three-phase five-wire system of low-voltage power distribution system, the ground wire and the neutral line are drawn from the neutral wire of the power supply, the neutral wire of the power supply is grounded, and the neutral wire and the ground wire are connected from the object, so the three-phase four-wire meter can not be connected to the zero line; Because the three-phase four-wire watt-hour meter is not connected to the zero line, it will affect the accuracy of measurement; Because in the three-phase four-wire line, the line voltage is not equal, and the neutral point of the watt-hour meter voltage coil will be offset if the zero line is not connected, so that the metering number of the watt-hour meter will be incorrect.

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The electronic meter is only connected to a live wire, and the zero line does not go to the meter, will the meter go? Why?

Won't go. Only when the meter is connected to a live line and a neutral line can a protection mechanism be formed, and the meter can work on a journey; If you only connect one live wire, the meter will not work. The connection between the live wire and the neutral line of the meter:

From left to right, the leftmost incoming live wire, the live wire connected by an interface, and then the zero wire connected in; The last one, the one on the far right, takes out the zero line. When using an energy meter, it should be noted that in the case of low voltage (no more than 500 volts) and small current (tens of amps), the energy meter can be directly connected to the circuit for measurement. In the case of high voltage or high current, the energy meter cannot be directly connected to the line, and needs to be used with a voltage transformer or a current transformer.

Extended information: The working principle of the electronic electric meter: when the electric energy meter is connected to the circuit under test, there is an alternating current flowing through the current coil and the voltage coil, and the two alternating currents produce alternating magnetic flux in their cores; The alternating magnetic flux passes through the aluminum disc and induces eddy currents in the aluminum disk; The eddy current, in turn, is subjected to force in the magnetic field, which causes the aluminum disc to obtain torque (active torque) and rotate.

The greater the power consumed by the load, the greater the current through the current coil, and the greater the eddy current induced in the aluminum disc, the greater the torque that makes the aluminum disc rotate. That is, the magnitude of the torque is proportional to the power consumed by the load. The higher the power, the greater the torque, and the faster the aluminum disc will rotate.

When the aluminum disc rotates, it is affected by the braking torque generated by the permanent magnet, and the braking torque is opposite to the direction of the active torque; The size of the braking torque is directly proportional to the speed of the aluminum disc, and the faster the aluminum disc rotates, the greater the braking torque. When the active torque and the braking torque reach a temporary balance, the aluminum disc will rotate at a constant speed. The electrical energy consumed by the load is directly proportional to the number of revolutions of the aluminum disc.

When the aluminum disc rotates, the counter is driven to indicate the electrical energy consumed. This is the simple process of working with an energy meter.

Won't turn. Under normal circumstances, the ground wire will not leak, and the common ones are: two-hole, three-hole socket.

In general, in the two holes, the left hole is connected to the neutral line, and the right hole is connected to the live wire. In the three-hole socket, the upper hole is connected to the ground wire, the left hole is the neutral wire, and the right hole is the live wire.

The live wire is the power line that transmits electricity in the circuit. The volt knows the zero line, which is mainly used in the working circuit, and is grounded from the neutral point of the transformer.

After leading out of the main line. (A tester can be used.)

to determine which one is the line of fire).

Hello, according to your question, the following help is provided, the single-phase electronic electric energy meter will not work if it is only connected to one live wire, because there is no circuit. 2. The single-phase electric energy meter is used for the electricity metering and charging of residential users, which is directly related to the interests of thousands of households and the stable and safe operation of the power sector. Although the watch is small, it has high requirements.

I hope my answer can help you.