When the equipment fails, why does the opening not trip, but the main switch

Since the switch is to control the electrical components of a single channel, and the main switch is the sum of each channel, when the combined current or voltage of each channel is higher than the main switch setting, it may jump, or the controller setting may not match the current control circuit, it is recommended to check.

The main switch is not used by one of your machines, so the load is high, while the opening gate is when you are using a machine so the load is low. You should turn off the other switches to see if they jump, if they still jump the main switches, replace the main switches, if each switch is used separately and do not jump, it means that the main gate capacity is small, increase the switch capacity of the main gate. If there is a separate opening trip, try to replace another normal opening with another normal switch, and then jump, it is the fault of your machine.

There is a problem with the configuration, it may be: 1. The total gate you choose is smaller or as big than the main gate opening; 2. The selected micro-break (also called air opening) action curve is not the same (ABCD curve, D action is the fastest, for motor protection, C level is generally home lighting electricity, air opening has a model above, such as C32 is C curve, D20 is D curve); 3. Is there leakage protection in the main gate but not in the opening gate? Does your fault mean that there is a leakage?

Summary. 1. That is, the electrical circuit in the household is damaged, when the electricity consumption exceeds a certain value, it exceeds the leakage current value of the resident's circuit breaker, and the household circuit breaker does not have time to trip, and crosses the first-level protection to reach the leakage current value of the unit layer circuit breaker.

2. It is also possible that the total load of each user under the east side of the main gate is too large, and the main gate will trip for a period of time during the operation time under the condition of overload.

3. The performance of the main switch is unstable, and a new switch needs to be replaced.

4. From the phenomenon that the household appliances do not go away, it can be said that there is a phenomenon of electricity theft or that there is a problem with the original installed line.

Extended Materials. Common faults of leakage circuit breakers.

Put into tripping. 1) If the three-phase power line, including the neutral line, does not pass through the zero sequence current transformer in the same direction, the wiring can be corrected.

2) The circuit with the installation of the leakage circuit breaker and the line without the installation of the leakage circuit breaker is electrically connected, and the two circuits can be separated.

3) There is a fire and a ground load in the line, and such a load can be eliminated.

4) There is a phenomenon of repeated grounding on the working zero line through the zero sequence current transformer, and the repeated grounding should be eliminated.

5) The leakage circuit breaker itself is faulty and should be replaced.

Malfunction. 1) Caused by overvoltage. If the circuit breaker can be operated when an operating overvoltage occurs in the line, a delay or rush can be selected.

The main gate of the unit trips, while the electric switch of the household does not trip.

Hello, we are happy to answer your questions, the first point is that the rock raid gates often installed in the distribution room are the air circuit breakers we see. The second feature is that the sensitivity of the air Zenchun circuit breaker is generally higher than that of the common micro-breaker in our room, that is, the air switch. The third point is that the gate in the power distribution room is generally equipped with a rough leakage protection function, and its leakage protection function is adjustable.

Automatic tripping 30 minutes after closing, how to deal with it?

Hold on. 1. That is, the electrical circuit in the household is damaged, when the electricity consumption exceeds a certain value, it exceeds the leakage current value of the resident's circuit breaker, and the household circuit breaker does not have time to trip, and the late bending exceeds the first-level protection to reach the leakage current value of the unit layer circuit breaker. 2. It is also possible that the total load of each user under the east side of the main gate is too large, and the noisy main gate will trip for a period of time during the operation time under the condition of overload.

3. The performance of the main switch is unstable, and a new switch needs to be replaced. 4. From the phenomenon that the household appliances do not go away, it can be said that there is a phenomenon of electricity theft or that there is a problem with the original installed line. Extended dataCommon faults of leakage circuit breakers are put into tripping 1) Three-phase power lines, including the neutral line, do not pass through the zero sequence current transformer in the same direction, and the wiring can be corrected.

2) The circuit with the installation of the leakage circuit breaker and the line without the installation of the leakage circuit breaker is electrically connected, and the two circuits can be separated. 3) There is a fire and a ground load in the line, and such a load can be eliminated. 4) There is a phenomenon of repeated grounding on the working zero line through the zero sequence current transformer, and the repeated grounding should be eliminated.

5) The leakage circuit breaker itself is faulty and should be replaced. 1) Caused by overvoltage. If the operating overvoltage occurs in the line, the code breaker can be activated, and the delay or rush can be selected.

Summary. The air switch tripped, why did it jump with the main switch?

Hello dear,...The air switch tripped, because the reason why it jumped together with the main switch was because it tripped, regardless of the reason, the main switch tripped, the biggest reason is that the current value of the opening is the same as the rated current value of the main switch, and the short circuit causes the two switches to trip at the same time.

The user uses a leakage circuit breaker, and the lines cross each other to cause tripping faults (that is, the zero line of the opening gate is connected to the main switch, and the zero line of the main gate is connected to the opening line).

The circuit breaker is overloaded, and it is possible that the opening will detect a current overload and be ready to trip, while the main switch is also preparing to be in progress, but this is a bit counterintuitive. Or the quality of the main gate is not good, or it is about to be damaged and trips at the same time.

The air switch tripped, why did it jump with the main switch?

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The air switch is open and tripped, why does it jump the dust with the main switch? Hello dear,...The air switch tripped, because the reason why it jumped together with the first gate of the total hail is because of the tripping caused by the cause, the opening drives the main gate to trip, the biggest reason is that the current value of the opening is the same as the rated current value of the main switch, and the short circuit causes the two switches to trip at the same time.

2.The user uses a leakage circuit breaker, and the lines cross each other to cause tripping faults (that is, the zero line of the opening gate is connected to the main switch, and the zero line of the main gate is connected to the opening line). 3.

The circuit breaker is overloaded, and it is possible that the opening will detect a current overload and be ready to trip, while the main switch is also preparing to be in progress, but this is a bit counterintuitive. Or the quality of the main gate is not good, or it is about to be damaged and worn, causing simultaneous tripping. Hope it helps.

Hello, I am glad to reply to you, the reason and treatment method for the equipment to run for a while and then trip: (1) The motor and its electrical circuit have a short-circuit fault, and the action of the protection device trips, for example, the motor is short-circuited due to insulation damage, burned out due to overheating of the winding, and short-circuited or grounded due to the introduction of a large amount of water from the outside. (2) The mechanical failure of the motor is serious, the load increases sharply and the oil overload or overcurrent protection action trips.

3) The motor itself is protected from malfunction tripping, such as wiring error, relay failure, wrong protection setting, two-point grounding of DC system, etc., at this time, there is no phenomenon of punching on the electrical system. (4) The power supply of the motor fails, such as the 380V motor often causes the power supply voltage to drop or lose instantaneously and causes the loss of voltage to trip, or the failure of the switch itself and the operation of the switch by humans or small animals. (5) The motor runs in two phases, such as one phase of the fuse, lack of phase of the power supply, poor contact of one phase of the switch, etc.

I hope it will be helpful to you, and if you have other questions in the future, you can always ask the teacher Zhengzheng. I wish you all the best in your life.

Summary. There are several brakes under the main gate, it may be that other lines leakage caused by tripping, you press the experimental button on the leakage protector of your home to see if it can trip, open and not jump, indicating that there is no short circuit or overload. Leakage insurance jump means that your wire or electrical equipment has a leakage place, check the wire is alive electrical equipment, pay attention to safety, your socket is not with a leakage protection device, if there is a replacement for it without it, because some leakage protection devices are too sensitive, as soon as there is a current fluctuation, it will automatically short circuit and cause tripping.

I am now resolutely not using a socket with leakage protection device, for fear that it will trip when I ** something. Besides, you are a new house, and the power supply itself should be well grounded. The sensitivity is different or the layer switch is broken, the total air opening in your home may be just a breaker, without overload and short circuit function, the problem may be a slight short circuit or grounding phenomenon at home, you need to check it to determine.

First connect the tripped group of wires to any other normal group, if it does not trip, change the original switch, and check the lamp holder if it does not. Switch, the main switch out of the line disassembled, if you can reset the closing does not trip, that is, the main switch is not broken, on the contrary, it is bad, check whether the line wire has rats bite the skin.

There are several brakes under the main gate, it is possible that other lines leak the pants and cause tripping, you press the experimental button on the leakage protector of your home to see if it can trip, and it does not jump when it is empty, indicating that there is no short circuit or overload. Leakage insurance jump means that your wire or electrical equipment has a leakage place, check the wire is alive electrical equipment, pay attention to safety, your socket is not with a leakage protection device, if there is a replacement for it without it, because some leakage protection devices are too sensitive, as soon as there is a current fluctuation, it will automatically short circuit and cause tripping. I am now resolutely not using a socket with leakage protection device, for fear that it will trip when I ** something.

Besides, you are a new house, and the power supply itself should be well grounded. The sensitivity is different or the layer switch is broken, the total air opening in your home may be just a breaker, without overload and short circuit function, the problem may be a slight short circuit or grounding phenomenon at home, you need to check it to determine. Then Jane first connects the tripped group of wires to any other normal group, and if it does not trip, change the original switch, and if it does not, check the lamp and lack a seat.

Switch, the main switch out of the line disassembled, if you can reset the closing does not trip, that is, the main switch is not broken, on the contrary, it is bad, check whether the line wire has rats bite the skin.

Site routes. Point-to-point + horizontal and vertical wiring.

Advantages: Saves wire, can reduce material costs. Point-to-point reduces signal loss.

The reason why the opening does not jump the main gate occasionally jumps is pro! Hello, I am glad to answer for you<> the reasons why the pro-switch does not jump the main gate occasionally jumps are as follows: according to the analysis of the knowledge points of "Factory Power Supply" and "Electrician Basics", including but not limited to the following possibilities:

1) The total current of the overload load of the main gate exceeds its rated current. 1) The reason for the accidental jump is: when each branch road is fully loaded with electricity at the same time, for example, at night in summer, every household turns on the air conditioner.

2) The opening does not jump because the opening switch does not overcurrent. 2) The quality of the main gate is faulty, due to aging or the use of fake and shoddy products. 1.

First of all, the gate problem distribution room gate is the regional circuit switch, which controls the circuit of a region, if the gate jumps, the small branch gate does not jump: first check whether the main gate is normal, close the small gate of the branch below, push it on the main gate, see whether the main gate will trip, if it trips, or can not be pushed, you should use a multimeter to check the circuit current of the main switch, whether there is leakage, or the voltage and current are abnormal, if there is an abnormality to check the line inspection, maintenance, if not, replace the main gate for testing, the general line is not abnormal, The main gate will not trip. If it is not a line problem, the main gate is usually no problem, so it is important to check the circuit controlled by the small gate.

2.Small gate problem If the main gate is working normally, you can open the opening one by one, look at the opening circuit, the main gate will trip, and then check the electrical appliances of this circuit branch, the working current of the line, and the opening of the switch. First of all, all the electrical appliances on the small gate branch of the problem are turned off, and the plug is unplugged, and the main switch is closed to see if it will trip, if it trips, check the small gate circuit to see if there is leakage, abnormal voltage and current, focus on checking the line interface, and find the problem for maintenance, the common one is the ablation at the circuit joint, resulting in poor contact or leakage mixed wire.

If the circuit is normal, check the small gate, remove it, replace it if there are ablation marks, if not, it can be repaired, and it can also be replaced with a straight companion. There is a reset button on the small gate, there is a yellow button to press once a month, press the button to see if the small gate trips, if the trip indicates normal, if it does not trip, the small gate is damaged, and replace it. 3.

If the circuit and the small gate are working normally, you can turn on the electrical appliances one by one to see which electrical appliances will trip when plugged in, and the tripping electrical appliances will be turned off first, unplug the power supply, and continue to plug in other electrical appliances to see if they trip. There are two reasons for electrical tripping, one is that there are too many electrical appliances, resulting in excessive circuit load, and the other is that the electrical appliances are short-circuited internally, resulting in tripping. The rated load of the circuit can be calculated by estimating the diameter of the electric line, or by looking at the label on the small gate.

Then add up the power on the appliance. It should be noted that the power of some electrical appliances is varied. Power = rated voltage (220V) Current – P=U I.

Tripping occurs when the circuit power rating is exceeded. Electrical leakage short circuit leads to circuit abnormality, which can also lead to tripping, which is a protective trip. Tripping of electrical appliances caused by maintenance appliances.

Hope mine can help you <>

Excuse me, do you still have it.