How Many Watts Does The Regulator Need?

The following is the estimated wattage: computer 200W*2=400W, TV 150W, refrigerator 150W, 1.5P air conditioner 1600W, microwave oven 800W, induction cooker 1800W, electric fan 50W*3=150W, 3P air conditioner 3000W, 1.5P air conditioner 1600W, other appliances 300W, a total of 9950W.
Of course, if these appliances will not be turned on at the same time, then it should be about the same to buy 10KVA. If it is possible to turn them on at the same time, then you should increase the capacity appropriately. The Static Voltage Stabilizer on the market are of varying quality, and there are many shrunken products. You can try to choose heavy ones with thick input and output wires.
According to the capacity of 10KVA, the wire at the output 220V end must be at least 16 square meters of copper wire. Those below 16 square meters can basically be considered as shrunken products; the input end cannot be calculated for you for the time being because your input voltage is uncertain.
Before purchasing, use a multimeter to measure the normal voltage and record the voltage during peak power consumption. When purchasing a static voltage stabilizer, the voltage range should cover your voltage.
As for voltage stabilization accuracy, you do not need to choose a high-precision one, because a high-precision static voltage stabilizer will work frequently and reduce its service life. Generally, 3-5% is enough.

There are two more points to note:
1. Since you are at the end of the line, when you use a static voltage stabilizer to increase the voltage, the current of the power supply line will increase. The more electricity the electrical equipment uses, the lower the voltage will be and the greater the current will be. The large current may cause tripping, fuse blowing, line heating, etc., and in severe cases may cause fire.
2. When the power supply capacity of the power supply bureau is insufficient, use a static voltage stabilizer to increase the voltage. The more electrical equipment there are, the lower the power supply voltage will be. It can be understood that the static voltage stabilizer absorbs the limited electricity to you, and the neighbors will not be able to live because of the lower voltage. When every household uses a static voltage stabilizer, your static voltage stabilizer may not work properly because the voltage may be too low to exceed your voltage regulation range. At this time, the solution can only be solved by the power supply bureau, and the user is powerless.