Inverters, being electronic devices, undergo thorough conceptualization by design engineers to address potential issues prior to the design phase. This approach helps in creating a circuit that is more user-friendly. As a result, most inverters are equipped with safeguards against overvoltage, low-voltage, and power-related problems. However, when it comes to inverters larger than 300W, additional protective measures are implemented. These measures include circuits that monitor temperature, alert users of low voltage, and regulate fan power. Consequently, the usage of such inverters may occasionally encounter various operational errors.
When the inverter indicator light is normal and the output voltage is also normal, the unloaded system seems to be working fine. However, the moment you insert the load, you hear a distinct cry and the red light turns on, indicating that the load is not working. This issue usually occurs when the battery that is being used is not sufficient. As soon as the load is connected, the battery voltage drops below the voltage of the low-voltage protection circuit due to the load power being greater than the battery output power. Consequently, the low-voltage alarm and low-voltage protection circuit of the inverter both start functioning. The sound is instantaneous and some machines have a self-locking protection circuit to prevent damage to the battery, inverter and load. In some cases, the inverter will beep one on and one off, continuously making a sound until the load is disconnected. The red light will turn on and off, but it is important to note that the power protection circuit is self-restoring. Nevertheless, with the load connected, the inverter battery is in abnormal conditions, which can potentially damage the battery.
When the inverter displays normal operation and the output voltage is within range, it may seem like everything is working fine. But once a load is connected, it starts making a continuous beeping sound and the load itself may not function properly. This type of issue usually arises due to misuse or incorrect usage of the equipment. Thus, it is important to read the instructions carefully and ensure that the load is compatible with the inverter before plugging it in. By doing so, you can avoid encountering such problems in the first place.
When you experience a low voltage alarm on your inverter, it may be due to insufficient power from your battery. However, the voltage has not yet reached the low voltage protection limit, so your inverter can still function. To resolve this issue, you have two options: either increase the capacity of your battery or reduce the amount of load being placed on the inverter. By doing so, you can ensure that your inverter operates smoothly and without any issues or voltage alarms.
Sometimes, even if your inverter has normal indication and output voltage, you may still encounter an annoying and continuous buzzing sound as soon as you connect a load. This often happens when there have been multiple modifications made to the inverter. It could be due to your input line being too small to carry the load. To resolve this issue, you need to increase the size of your input line accordingly. For instance, if your inverter has a capacity of 300W to 500W, you must use 6 square wires. On the other hand, a 1000W inverter would require at least 10 square wires or more. The thickness of the additional wires also depends on the length of your input wire. For example, with 10 square wires, the input wire for a 1000W inverter should not be longer than 50cm. In case you need to extend the wires beyond this limit, make sure to use wires with a minimum thickness of 16 square wires. Remember, the maximum length of the main energy wire should not exceed 1 meter.
If you connect your inverter and notice a red light on, but there isn't any output, you may be facing a situation where your battery is overcharged, resulting in a higher voltage than expected. On the other hand, if you hear a sound, it may signify that your battery's voltage is too low. To address this issue, you need to ensure that your battery's voltage is just right, not too low or too high.
When you connect the fan of your inverter and it doesn't rotate, it may just be working as expected. Inverters are designed so that fan speed is proportional to output power, which means that the load you are using drives the fan speed. This helps reduce noise and static current. If your load is below 100W, it's normal for the fan to remain stationary. However, if your load is over 100W, the fan should start to rotate. So don't worry if your inverter fan isn't spinning right away. It could just be doing its job efficiently.
The primary cause of the issue is that the inverter shuts down immediately upon connecting the load. However, upon restarting the inverter, it functions normally until the load is connected once again.
An inverter's power protection comes into play when there is an excessive load power connected to it. For instance, if a load of 350W is connected to an inverter with a nominal power of 300W, it will result in a shutdown. Let's remember the importance of properly matching the load power to the inverter's nominal power to avoid such issues.
One common issue that many people face with their inverters is that the peak value may not be sufficient. Typically, the peak value of an inverter is set at about twice the nominal power. This means that if you have a 100W inverter, the peak can reach up to 200W. However, in some cases, your peak load may exceed three times the nominal power, which could be problematic because even if your inverter has 90W of power, it won't be able to drive the load. For example, if your device has a three times peak of 270W, this would be greater than the 200W capacity of a 100W inverter. Therefore, it is crucial to pay attention to the peak value of the equipment when purchasing an inverter.