For your attention, there are already 78 questions that were asked to me by a reader who introduced himself as Dmitry. If you have your own answer to the question, then write it in the comments below. I and other readers of my channel will be happy to read it.
I quote verbatim the text of the question itself:
Hello. When you turn on and off the refrigerator compressor (plugged into the outlet of the standard apartment network in Khrushchev), a power surge that manifests itself in interruptions in the work of the desktop PC (the monitor goes out for 2-10 seconds, errors occur drivers). What could be the problem and how to fix it? The devices are plugged into different sockets, a PC through an extension cord with a filter.
I considered the issue and advised Dmitry within the framework of my knowledge and qualifications as follows:
If this phenomenon bothers you constantly since the installation of the refrigerator or with the onset of winter, then the problem lies in the starting currents of the electric motor. The windings themselves are electrical coils, assembled in a special sequence determined by the type of motor.
Without the flow of electric current, the entire resistance of the windings is only an active component, determined by the length and cross-section of the conductor. Due to the fact that the active component is too small, according to Ohm's law, the current flowing through the windings is several times higher than the nominal one.
After the appearance of an electric current in the windings, an electromagnetic field is also created, which determines the inductive component of their resistance. Due to the inductive component, the electrical resistance increases significantly, and the current, which has an inverse proportional dependence on it, decreases.
As a result, the load on the circuit is significantly reduced, and the electric motor enters the nominal operating mode.
A noticeable voltage drop at the moment the refrigerator is turned on is possible only if the power limit is exceeded. This is possible when the majority of consumers on the line have turned on powerful appliances (heaters, ovens, electric kettles, etc.), which already creates a power shortage and lowers the voltage.
To combat inrush currents, there are soft starters that can be purchased and installed in the motor circuit. In addition, if the voltage at the input to the dwelling is much less than 230V, you can purchase a voltage stabilizer both separately for the computer and for the entire apartment.