A three-phase five-column arc suppression reactor

Abstract

The invention discloses a three-phase five-column arc extinction electric reactor which belongs to the technical field of transformer design and manufacture. The three-phase five-column arc extinction electric reactor realizes the integral function of ground connection and arc extinction. An amorphous alloy with an air gap is first adopted for an iron core, and the end surface of the air gap has high smooth accuracy, so the noise caused by the adjustable air gap is effectively reduced; three main windings in the middle of the iron core are in star connection, a neutral-point is directly connected to ground, the columns on two sides are provided with air gaps and form a zero sequence magnetic access with the middle column; coils are wound on the columns on two sides, and three inductive loads with different reactive resistance are provided for the columns on the two sides to realize the rough adjustment and fine adjustment of a compensating current. The advantages of high magnetic permeability and low energy consumption of the amorphous alloy are fully utilized to overcome the defects caused by direct current excitation for a long time that the system is easy to become overheated, the active loss is large, the wave distortion of the compensating current is large, and the residue is large after compensation. The three-phase five-column arc extinction electric reactor is mainly used in high-voltage and intermediate-voltage electric power systems.

Description

technical field [0001] The invention relates to a three-phase five-column arc-suppression reactor, which belongs to the technical field of transformer design and manufacture. Background technique [0002] When a conductor is energized, it usually generates a magnetic field in a certain space it occupies. In the most popular terms, something that can act as an impedance in a circuit is called a reactor. However, the reactor with a long straight conductor is small and the magnetic field generated is not strong, so the actual reactor is a wire wound into a solenoid, called an air-core reactor; sometimes in order to make the solenoid have a greater reactance If the device is used, the iron core is inserted into the solenoid, which is called an iron core reactor. [0003] Due to the use of reactors, when a short circuit occurs, the voltage drop on the reactor is relatively large, so it also plays a role in maintaining the voltage level of the busbar, so that the voltage fluctuat...

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Problems solved by technology

[0005] When a single-phase arc suppression reactor is used in a three-phase power system, the arc suppression reactor device can only be added to each phase, which has certain defects in the use process, too many and complicated devices, and may also bring three Unbalance problem of canceling arc

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