Electrician, help!

Classification: Education/Science >> Science and Technology

Problem description:

My family lives in a mining area, and we use electricity here in two parts. Part of it is production electricity, and part is domestic electricity. Due to various reasons such as problems in power management, the voltage in residential areas in China has been seriously low for a long time. I measured that the peak voltage of our household electricity is only 165V, and the light bulb is particularly red. The computer won't start. I would like to ask experts to point out what devices or methods can restore the voltage in our home to normal voltage.

Analysis:

Your problem is more serious. The voltage of 165V exceeds the capacity of most regulated power supplies. I use a 500W regulated power supply from Zheng Tai. I sell 140 yuan here, but the voltage of 165V is too low. If the voltage often reaches that level, the computer can't start normally. The simple solution is more expensive, that is, install a voltage regulator at the incoming line of your home. It needs a high-power regulator to drive the whole family to use it. The opening of general household appliances is below 15A, that is, a voltage regulator of about 15A*220V=350W is needed. Don't set it too high, it can basically meet the needs of household appliances when it reaches about 200, and then add a voltage regulator in front of the computer. Unless your machine is equipped with a higher level (a UPS can also be equipped to prevent the voltage from dropping sharply due to some equipment), it is estimated that your machine can be used after secondary voltage regulation. Mind you, pay attention to the wire diameter of your home incoming wire. If it is less than 2 square meters, be careful, because maintaining the original power at low voltage will inevitably lead to an increase in current. It is suggested to use 16A air switch with leakage protection before the voltage regulator. It is time to check your current high-power electrical equipment. Some things always work under such unstable voltage and are prone to problems.

I graduated from a technical school and worked as an electrician for several years. If you need to ask again, please go to the Lingqu Temple in North China and have a dream trip to the west. My ID number is 732547, and I will be there at night.