The distribution box is empty, and all the openings are closed, and the main gate still can t be del

Try removing the outlet under the main switch. Try closing again. If it still can't be delivered, it is a problem with the switch itself, and you can change the switch.

If it can be sent, it means that there is a problem with the line between the outlet line under the main switch and the switch below.

If there is a fault, remove the fuse in the box and measure the resistance value of each phase of the main switch. Or the switch is broken, or the electricity leaks.

Another possibility is that the switch did not reset after tripping.

The switch handle is in the middle, which means that it has not been reset. Turn off the switch first. Then the power is sent.

Determine that the main switch or leakage protector is broken, and replace the switch.

First check whether the reset button on the hollow open is reset? I didn't reset, try again after reset. After moving the hand to the lower end, close it back up.

If all of the above attempts fail, it means that it is caused by the leakage of the neutral line.

If the zero line is removed, it can be checked normally, and the above inference can be proved.

The reason is that the neutral and ground wires are mixed.

Pull to the end, and then push up, if it doesn't fit, it's either broken, or there is a problem with the lower line.

There are two main reasons for this kind of failure, one is that the main gate is tripped, the main gate is damaged and cannot be closed, and the other is caused by short circuit or leakage of the line.

Summary. Hello, there is no problem with either of the two empty openings of the distribution box to open either one separately. But open one and then open the other will trip, air trip is generally the power of electricity exceeds the rated current of air open, such as 20A air open, you add the power of the common electrical appliances at home when the power is used at the same time, if it exceeds 4 kilowatts, it will trip.

Or the line is caused by a short circuit somewhere.

The trip indicates that the actual electricity load in the home exceeds the allowable value of the air opening. Please check from the following two points: 1. Whether there is leakage in the line 2. Whether it is connected to a high-power electrical appliance, or whether it is connected to a problematic electrical appliance (there is a short circuit inside).

If you have a lot of electricity at home, change the wires.

The power supply is insufficient. The load is too large, and the empty opening capacity is small. It's also possible that there is a short circuit somewhere in your home. Do not turn on multiple high-power electrical devices at the same time. Get an electrician and take a look.

There is a leakage of electricity, and too many high-power appliances are used.

1. Maybe your circuit load is not enough, resulting in the leakage protector tripping malfunctioning.

2. The wiring sequence of the distribution box of the two motors is wrong (only applicable to 380 motors), for example, one motor is normally wiring, and the other is actually reversed.

3. There is a problem with the wiring on the jog switch and the AC contactor.

If needed, a more accurate answer is necessary.

There is no problem with opening either of the two empty openings of the distribution box separately. But opening one and then opening the other one will trip?

Hello, there is no problem with either of the two empty openings of the distribution box to open either one separately. But open one and then open the other will trip, air trip is generally the power of electricity exceeds the rated current of air open, such as 20A air open, you add the power of the common electrical appliances at home when the power is used at the same time, if it exceeds 4 kilowatts, it will trip. Or the line is caused by a short circuit somewhere.

The trip indicates that the actual electricity load in the home exceeds the allowable value of the air opening. Please check from the following two points: 1. Whether there is leakage in the line 2. Whether it is connected to the high-power electrical appliances, or connected to the problematic electrical appliances (there is a short circuit inside) The power consumption at home is large, and the power supply of the wire is insufficient, the load is too large, and the empty opening capacity is small.

It's also possible that there is a short circuit somewhere in your home. Do not turn on multiple high-power electrical devices at the same time. Find an electrician to take a look at it, there is a leakage, and there are too many high-power electrical appliances.

1. Maybe your circuit load is not enough, resulting in the leakage protector malfunction tripping 2. The wiring sequence of the distribution box of the two motors is wrong (only applicable to 380 motors), for example, one motor is normal, the wiring is forward and the other is actually reversed. 3. There is a problem with the wiring on the jog switch and the AC contactor. If needed, a more accurate answer is necessary.

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Hello dear I am happy to answer for you, reason: short circuit caused tripping, reason: overload caused tripping.

Cause: Undervoltage causes tripping. ①：

Eliminate short circuits. If it is a trip caused by a short circuit, then it is impossible for us to use it normally before we troubleshoot. In other words, short circuits do not trip frequently.

For short circuits at home, it is generally necessary to troubleshoot the short circuit before closing, so the first thing is to eliminate the tripping caused by the short circuit. : Excludes undervoltage.

Because if the voltage of the multi-loop in the home is reduced, the voltage of our home will also be reduced at this time. Then in the case of a decrease in the voltage of the home, the personal point of view is that it is not likely to cause a single opening to trip, but it should be the main switch trip in our room. Therefore, from this aspect, we can actually rule out tripping caused by undervoltage.

Confirm the overload. Because we have basically ruled out the cause of the possible tripping of the air switch, then the rest may be overload.

Therefore, according to the specific situation of tripping, that is, the frequent tripping in the family, it is also consistent with the characteristics of overload. So at this point, we can basically conclude that the right circuit is tripped due to overload.

Check whether the line after the main gate comes out has a short circuit or grounding.

1. The main gate is broken, and 2. There is a problem with the line from the main gate to the open gate.

There could be several reasons for this.

The reset button on the 2 switch was not pressed.

3. There is a problem with the tripping mechanism in the switch, and a new switch needs to be replaced.

The main switch shuts down the power supply to all circuits, and shutting it off does not pose a hazard.

Addendum: No.

1. The power supply itself is regulated to keep the voltage stable.

2. Your household electricity is not super power, and it is not a frequent switch on and off the main switch, which causes the instantaneous voltage of the circuit to rise.

There will be no problem, if there is a refrigerator to use and monitor the equipment, it can not be turned off, otherwise the thing is broken, the normal operation of the switch first, as far as possible do not turn off the main switch with load, to prevent contact aging and heating.

When you don't use electricity, you naturally have to turn off the switch, which should not cause any danger, otherwise what is the use of switching.

Don't worry, it won't. When going out, the main switch is generally turned off directly.

How come, I don't know who told you that!! It's just that the following roads are out of power, so it's good to close them if you want to.

Summary. There is no problem with opening either of the two empty openings of the distribution box separately. But opening one and then opening the other one will trip?

Hello dear, the reasons are as follows: air opening tripping is that there is an overload current in the circuit controlled by the air opening, and generally a dry opening controls a line (or a high-power electrical appliance).

The two empty openings you are talking about should be two separate control of two branches (it is impossible to use two in a circuit), one can be used, and two are tripped at the same time, so there is a total empty opening on the top of these two, which is the total empty opening tripping, and the total empty opening of a road is not loaded, and the two may be overloaded at the same time, and the total empty opening trips. That is, the total air-open capacity is less than the sum of the two air-open loads.

For example, each of these two empty openings is 25a, and the two are used at the same time as 50a, and the total empty opening should be at least 50a, and this phenomenon will occur if 32a is used.

There is no problem with opening either of the two empty openings of the distribution box separately. But opening one and then opening the other one will trip?

There is no problem with the two empty openings of the distribution box to open which hall is open separately. But if you open one and open the other one, it will trip? Hello dear, the reasons are as follows:

Empty trip is that there is an overload current in the circuit controlled by the air open, and generally a dry open controls a line (or a high-power electrical appliance). The two empty openings you are talking about should be two separate control of two branches (it is impossible to use two in a circuit), one can be used, and two are tripped at the same time, then there is a total empty opening on the top of these two, which is the total empty opening tripping, and the total empty opening of all the way is not loaded with Shen Hui, and the two at the same time may be overloaded, and the total empty is tripped. That is, the total air-open capacity is less than the sum of the two air-open loads.

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What is the reason why all the load switches are disconnected in the distribution box, but they trip as soon as the power is turned on?

Glad you have a problem, it is generally caused by a serious short circuit or ground fault in the control main circuit. The main distribution cabinet trips due to overload, short circuit, and relay protection. The overload can be caused by insufficient setting values.

Many equipment will fail in the process of use, so the high and low voltage distribution cabinet will also have corresponding failures when in use, such as the high and low voltage distribution cabinet trace switch tripping and other faults, so what are the main reasons for the failure of the distribution cabinet? First, it is very likely to be related to the quality of the high and low voltage distribution cabinet, the user may not pay attention to its quality when purchasing the distribution cabinet, and now there are some substandard distribution boxes on the market, therefore, its quality factor is also the main reason for the failure of the distribution cabinet, and the improper use of some models of different contactors may cause its electric switch to burn out, thereby causing the fault. Second, the cause of the failure of the high and low voltage distribution cabinet is also related to the surrounding temperature factors, such as some high temperature, low temperature environment, humid environment will affect its use, and some distribution cabinets are set up outside by Yinzhou Feng, but also affected by the high temperature of the sun, these high temperature factors can make the equipment temperature of the distribution cabinet rise, so that the components of the high and low voltage distribution cabinet can not bear, so that some components in the electrical overheating phenomenon leads to the occurrence of failure.

Thirdly, the fault of the high and low voltage distribution cabinet is also related to the AC contactor in it, the model and specification are incorrect, for the different lines of the distribution box, the capacity of the AC contactor is also different, if the connection is wrong, it is easy to make the contactor burn out. Fourth, the line is damp and leakage.