reason
1, low insulation resistance
Use exclusions. Unplug all the strings on the input side of the inverter and connect them one by one. Use the functions of the inverter to detect insulation resistance, detect problem strings, find problem strings, and check if the DC connector has a short-circuit bracket submerged in water. Or burn the short-circuit bracket, and check whether the component itself burns black spots on the edges, causing the component to leak through the frame to the ground.
2, bus voltage low
If it happens early\/late, this is a normal problem because the inverter is trying to limit the generation conditions. If it occurs during a normal day, the detection method is still an exclusion method, and the detection method is the same as one.
3. Leakage current failure
The root cause of such problems is the quality of the installation, the selection of the wrong installation location and the low quality of the equipment. There are many points of failure: inferior DC connectors, inferior components, inferior component installation height, inferior grid-connected equipment or water leakage. Once a similar problem occurs, you can find the ** spot and sprinkle the powder. Do a good job of insulation can solve the problem, if the material problem, you can only replace the material.
4, DC overvoltage protection
As components pursue efficient process improvements, power levels are constantly updated, and components' open circuit and operating voltages rise. The temperature coefficient must be considered in the design phase to avoid hard damage due to overpressure at low temperatures.
5. The inverter does not respond when it starts
Make sure that the DC input line is not reversed. Generally, the DC connector has an anti-stay effect, but the crimp terminal does not have an anti-stay effect. It is important to read the inverter manual carefully to ensure that the positive and negative terminals are crimped together. The inverter has a built-in reverse short circuit protection, which can be started normally after returning to the normal wiring.
Hello, the inverter charging intermittently may have the following reasons:
1. Low battery power: If the battery power is low, the inverter will be intermittent when charging, because the battery takes longer to charge.
2. Charger failure: If the charger fails, it may cause the inverter to be intermittent while charging. It is recommended to replace the charger.
3. Inverter failure: The inverter itself may fail, which will lead to intermittent charging. You are advised to check whether the inverter is faulty and repair or replace it.
4. Unstable power supply: If the power supply is unstable, the inverter may be intermittent when charging, because it cannot receive power stably.
It is recommended to check the above causes to determine the problem and take appropriate measures.
The reason for the intermittent charging of the inverter may be caused by factors such as battery aging or voltage instability.
2 When the battery is aging or the voltage is unstable, the power input of the inverter is unstable, resulting in intermittent charging.
3 To solve this problem, you can replace the battery or use a device such as a regulator to assist in stabilizing the voltage to ensure that the power input of the inverter is stable, so as to avoid the problem of intermittent charging.
one
You should first check whether the original charger and the power socket have poor contact.
two
Check whether there are problems such as poor contact inside the original charging data cable.
three
Check whether there is poor contact between the charging data cable plug and the mobile phone charging tail plug.
four
Check whether the mobile phone battery is normal (if necessary, a professional should be asked to test the mobile phone battery).
five
Note: If the above checks are normal, or not, then this situation may be the charge control circuit on the motherboard is faulty.
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1, compatibility problems, will lead to cigarette lighter and car charger can not match, there is a break for a while to connect the situation.
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2. The poor contact between the car charger and the cigarette lighter causes the car charger to have no reaction, so when installing the car charger, it is necessary to ensure that it is fixed in place, and it is installed in place when you hear a \"da\" sound.
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3, the car cigarette lighter has a problem, at this time, you need to use the original car cigarette lighter to determine whether the interface is working normally,
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4, the quality of the car charger is not good, you can replace a new car charger to try, there may be a problem with the wiring of electrical appliances, such as the data cable of the mobile phone, a new data cable can be replaced.