The application of reactors, the role of reactors

We all know that the function of the shunt reactor is to compensate for the capacitive reactance of the system, so it is generally connected in series with the thyristor to achieve continuous adjustment of the reactance current. It is worth mentioning that its prototype is a generator full load test. The application of series reactor is generally to be connected in series with compensation capacitors, so that the series resonance of steady-state harmonics can be realized.

A small part of these are still high-inductance reactors.

There are also some reactors that may not be as widely used as the parallel and series reactors mentioned above, but they also play an important role, so they can be ignored. For example, a tuned reactor passes through alternating current, and it can be connected in series with a capacitor to form a series resonance of the specified harmonic components, so that the harmonic components can be absorbed. There is also the incoming reactor, which is also often referred to as the commutation reactor, which is used in the incoming line of the power grid to limit the voltage drop on the commutation grid side of the AC.

There are also current-limiting reactors such as those used in distribution lines, which can effectively prevent the voltage from being too low due to short circuits in the feeders.

The reactor plays a very important role in the power grid, and it is also used at various important points of the power grid. Many reactors are and other important electronic materials need to pay special attention to its aging, generally the higher the moisture content of the insulating material, the faster the aging. Therefore, when using the reactor, it is necessary to pay attention to its aging, and the higher the moisture content of the general insulating material, the faster the aging.

Therefore, when using the reactor, we should pay attention to its service life, so as not to affect its use effect. with life, so as not to affect the effect of its use.

The main functions of the reactor are as follows:

1.Capacitive effects on light no-load or light-load lines to reduce power frequency transient overvoltages;

2.improve voltage distribution on long transmission lines;

3.The reactive power in the line is balanced as much as possible at light load, so as to prevent the unreasonable flow of reactive power and reduce the power loss on the line.

4.When the large unit is parallel with the system, the power frequency steady-state voltage on the high-voltage bus is reduced, so that the generators are parallel at the same time;

5.Prevent the self-excitation resonance phenomenon that may occur in the generator with long lines;

6.When the neutral point of the reactor is used through the small reactance grounding device, the small reactor can also be used to compensate the interphase and phase-to-ground capacitance of the line, so as to accelerate the automatic extinguishing of the latent power supply current, which is convenient for adoption.

Reactor is a widely used power electronic component that plays a very important role in many power electronic systems. Its main role is to suppress sudden changes in current in the power electronic system, protect the equipment and improve the efficiency of the system. In addition, reactors can also regulate the power grid to maintain its stability and reliability.

Specifically, reactors suppress changes in current primarily by changing the current instantaneous rate of change. In power electronics, the rate of change of voltage and current is usually high, which can lead to sudden changes in current, which can cause damage to systems and equipment. Attitude trap reactors can limit the rate of change of current by increasing the inductance in the circuit, thereby reducing the risk of abrupt changes.

It is worth noting that the reactor can also play a certain role in regulating the track by controlling the current and voltage of the power grid. In the case of high voltage and high load of the power grid, the reactor can make the power grid more stable by reducing the peak of the current. At the same time, it can also adjust the power factor of the grid by controlling the phase of the current, thereby improving the efficiency and reliability of the grid.

In conclusion, reactors play an irreplaceable role in power electronics systems. By suppressing abrupt current changes and protecting equipment, it helps to improve the efficiency and reliability of power electronic systems and provides a guarantee for better use of power resources. <>