How is the resonance generated? What is resonance?

You can see below your content, if there is any doubt, you can go to the large-bit electronic transformer forum to discuss with you. Resonance is a simple harmonic vibration of physics, and the acceleration of an object is proportional to the displacement from the equilibrium position, and it always points to the oscillation under the action of the recovery force of the equilibrium position. Its kinetic equation is f=-kx.

The phenomenon of resonance is the current increase and voltage reduction, the closer the resonant center, ammeter voltmeter Power meter rotation change fast, but the difference between and short-circuit is not to appear 0 sequence. The resonant circuit consists of inductance L and capacitance C, which can occur on one or several frequencies of resonant circuit, collectively referred to as resonant circuits. In electronics and radio engineering, it is often necessary to pick out the electrical signals we need from many electrical signals while suppressing or filtering out the electrical signals that we do not need, for which a choice circuit, the resonant circuit, is required. On the other hand, in power engineering, there may be some hazards due to resonance in the circuit, such as over-voltage or over-current.

Therefore, the study of resonant circuit, whether from the use of, or from the limitation of its harm, is of great significance. Passive (non-independent power supply) containing inductance coils and capacitors the linear time invariant circuit is purely resistive to the external power supply at a certain frequency. This particular frequency is the resonant frequency of the circuit. The circuit called resonant circuit is the main working state of resonance. The radio equipment uses resonant circuit to complete the functions of tuning, filtering and so on.
　　The power system is required to prevent resonance to avoid over-current and over-voltage. The resonance in the circuit has linear resonance, nonlinear resonance and parametric resonance. The former is a resonance in a linear time-invariant passive circuit, and the resonance in a series resonant circuit is typical. Nonlinear resonance occurs in a circuit containing a nonlinear element. A nonlinear resonance can occur in a circuit formed by a core coil and a linear capacitor in series (or in parallel), which is called a ferromagnetic resonance circuit. Under the action of sine excitation, the phenomenon of the amplitude and phase hopping of the base wave resonance, high harmonic resonance, harmonic resonance and current (or voltage) will appear in the circuit. These phenomena are collectively known as ferromagnetic resonance. Parametric resonance is a resonance that occurs within a circuit with time-varying elements.　
　　Parametric resonance can occur in a salient-pole synchronous generator circuit with capacitive loads. The so-called resonant, according to the circuit theory, it is sinusoidal voltage Plus in the ideal (no parasitic resistor) inductance or capacitor series circuit. When the sine frequency is a certain value, the capacitance and inductance are equal, the impedance of the circuit is zero, the circuit current reaches infinity; if the sinusoidal voltage is added to the shunt circuit of inductance and capacitance, when the sinusoidal voltage frequency is a certain value, the total admittance of the circuit (admittance is the reciprocal of the impedance) is zero, and the voltage on the inductor and
The former is called Series Resonance, the latter is called parallel resonance. A formula is used to denote z=r+j (XL-XC) where Z is the impedance, R is a resistor, and xl-xc=x is inductance + capacitance = reactance. From the middle of the formula can be clearly seen: when the inductance XL and tolerance xc equal, the middle of Z contains only the real component R, which is the pure resistor. This is the resonance.

Questioner evaluation

I think you're quite right. What I want to ask is how the resonance is generated in the 10KV circuit.