[Air conditioner regulator]Is an air conditioner regulator useful? How to choose an air conditioner regulator?
Do air conditioner regulators work?
Unless the grid voltage is extremely Low, in general the transformer is still very effective. The current voltage stabilizer generally has the function of voltage regulation, which can be adjusted to 220V. As for the brand and price, it’s hard to say. You can go to the home appliance market to see and compare. But first of all, it must be determined that the voltage is too low. If it is determined that it is a voltage problem, a voltage regulator can be installed to solve it. The role of the voltage regulator is to stabilize the voltage that is too high or too low at 220V. The voltage stabilizer should be selected according to the power of your electrical equipment. You must choose a voltage stabilizer larger than the rated power of your air conditioner (marked in the air conditioner manual) to ensure the normal operation of the air conditioner. The price of the voltage regulator is that the higher the power, the more expensive it is.
How to choose an air conditioner regulator?
1. Calculate the power of the voltage stabilizer: the main load of the air conditioner is the compressor, so it is a motor load. The current of the motor is very large when it starts instantly, although many air conditioners are now It is started by frequency conversion, but the current is still very large at the time of startup, so there should be a working margin when equipped with a voltage stabilizer. If the air conditioner is 2KW, the voltage stabilizer should preferably be equipped with a 6KW voltage stabilizer according to 3 times the power. How to calculate the power of the air conditioner, the general air conditioner has 1P, 1.5P, 2P, 3P, 1P=0.75KW, everyone can follow this calculation.
2. The power factor of the voltage stabilizer is 0.7 for 80% of the voltage stabilizers on the market, and 0.8 for 20% of the voltage stabilizers. What does that mean? It is a 10KVA voltage stabilizer, the actual output power x 0.7=7KW
3. When using the voltage stabilizer in summer, most of it is due to the low voltage of the external network, so when choosing a voltage stabilizer, pay attention to There is a working margin. Generally, the actual load should not exceed 80% of the power of the regulator. Why?
Let’s calculate it and know, when the external network voltage is 220V: 6000W/220V=27A (current), when the external network voltage is 170V: 6000W/170V=35.3A (current), after comparison, you can see When the input voltage is low, the current is larger, and the wire diameter of the transformer in the voltage stabilizer is fixed, and the current is much larger at low voltage.
4. Calculate according to the above method: 2KW air conditioner X2 times = 4KW, where the air conditioner power is multiplied by 2 because the compressor of the air conditioner has a large instantaneous starting current; 4KW/ 0.8=5KVA (voltage regulator power), Dividing by 0.8 here is the working margin for placing the voltage stabilizer, 5KVA / 0.8=6.25KVA (the power of the voltage stabilizer to be purchased), and dividing by 0.8 here is that the actual load capacity of the voltage stabilizer is only 80%. That is, a 2KW air conditioner with a 6KVA voltage regulator is calculated like this.
