SU1663632A1 - Electrical reactor with magnetic biasing - Google Patents

Abstract

The invention relates to electrical engineering. The aim of the invention is to reduce the incremental losses, mass and dimensions and to increase the depth of regulation of the reactor. The device contains a winding 2 controls, rods 3 of the magnetic system, made in the form of armored cores with frames and rods, on which the control winding 2 is placed, the core rods are located orthogonal to the axis of the main winding 1, and the coreless cores are provided with U-shaped plates and X-shaped insert 5, made in the form of electrical steel packages with bent to opposite sides of the ends. Armored cores are made of two O-shaped parts 6, placed in the same plane between the ends of which the plate is placed X-shaped insert 5, forming the core of the core. 3 il.

Description

The invention relates to electrical engineering and can be used in energy, as controlled by the magnetization of inductive reactances.

The purpose of the invention is the reduction of additional losses, mass and dimensions and increasing the depth of regulation of the reactor.

Figure 1 shows a rod with U-shaped overlays and an X-shaped insert ^ axonometry; figure 2 electric reactor with magnetization, General view; in Fig.Z - section A - A in Fig.2.

The magnetizing electric reactor contains the main winding 1, control winding 2, the rods 3 of the magnetic system are made in the form of armored cores with yokes and rods, on which the control winding 2 is placed, while the core rods are located orthogonal to the axis of the main winding 1, and the armored cores are equipped with overlays .4 and X-shaped insert 5, made in the form of packages of electrical steel with ends bent in opposite directions. Armored cores are made of two 0-shaped parts 6, placed in the same plane, between the ends of which an X-shaped insert 5 is placed flat, forming a core rod, at the ends of which U-shaped overlays 4 are placed on both sides of the 0-shaped parts 6, this plane of the X-shaped insert 5, paired with the O-shaped parts b and the shaped plates 4 are provided with a dielectric coating 7.

The electric reactor operates as follows.

Due to the presence of a large scattering channel between the electrical steel of the armored core and the main winding according to the prototype, when the core is magnetized and the reactor is brought back to the nominal operating mode (maximum magnetization) into the scattering channel from core is displaced up to ~ 40% of the main magnetic flux, which, losing connection with magnetizable steel, leaves the control region, 'therefore the regulation depth of the reactor decreases sharply, and additional losses in the steel and copper windings increase from buckling flows, to ensure a given depth of regulation, it is necessary to design a reactor with deliberately overestimated mass and size indicators for steel and copper.

As a result of the fact that the entire scattering channel is closed by magnetizable electrical steel, scattering (buckling) flows are significantly reduced, and at the same time additional losses in the structural elements, the mass and dimensions of the reactor are reduced, and the regulation depth is increased. All this is ensured by the fact that even with maximum magnetization, almost the entire main magnetic flux remains in the core steel and is involved in the process of regulating the reactive power of the reactor. The only exception is the scattering channel formed between the core steel and the main winding selected according to the insulation conditions for a given class of reactor voltage, as well as the channel in which the frontal parts of the control winding pass.

To ensure the monolithic design of the armored core with overlays, insertion and control winding, the core can be banded in height in several places by any of the known design techniques.

Claims (1)

Claim An electric magnetization reactor containing a magnetic system with yards and rods, sections of the main winding, covering the rods of the magnetic circuit and sections of the control winding, moreover, the rods of the magnetic system are made in the form of armored cores with yokes and rods, on the rods of which are placed sections of the control winding, the axis of which are orthogonal axis of the main winding, characterized in that, in order to reduce additional losses, mass and dimensions at the same power and increase the depth of regulation, the armored rod The cores are equipped with Step-shaped overlays of a stepped section and an X-shaped insert made in the form of packages of electrical steel with ends bent in opposite directions, forming a step configuration, armored core cores are made of two Ο-shaped parts placed in the same plane, between whose ends X is placed -shaped insert, the steps of the U-shaped overlays are joined to the stepped ends of the X-shaped insert, and the U-shaped overlays are adjacent to the lateral surfaces of the 0-shaped parts with otivopolozhnyh sides, the joints X-shaped inserts with U-shaped plates are covered with a dielectric coating, with the plane X-shaped insert, associated with the 0-shaped portions and U-shaped plates are provided with a dielectric coating. physical T.