CN2692811Y

CN2692811Y - Reactor

Info

Publication number: CN2692811Y
Application number: CN 200420005605
Authority: CN
Inventors: 张振华
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-03-01
Filing date: 2004-03-01
Publication date: 2005-04-13
Anticipated expiration: 2014-03-01

Abstract

The utility model discloses a reactor, compising coils, insulating parts, a clamping device, and a terminal device; the utility model is characterized in that a central column made of a magnetic conducting body is positioned in the coils, and a guide magnetic cylinder made of a magnetic conducting body is positioned outside the coils; the central column, the coils, and the guide magnetic cylinder have a same centroid; the utility model has the advantages of losses decrease, leakage prevention of the magnetic field, noise decrease, and simple technology. The reactor of the utility model can be applied in electric power system.

Description

Reactor

The utility model relates to the reactor in the electric power system.

The reactor that is installed at present in the electric power system mainly contains air core reactor, iron-core reactor and shell-type air core reactor, and air core reactor does not have iron core, and winding volume is big, loss is high, and the outside Vent in magnetic field leaks during operation, to environment and human body harmful.The iron core of iron-core reactor is the iron core that has a plurality of gaps, between each cake of core limb and be difficult between core limb and the iron yoke fixed, complex process, running noises is big, the shell-type air core reactor is folded thick big because of silicon steel sheet, complex process, and middle-size and small-size reactor adopts few.

The purpose of this utility model is the shortcoming that overcomes above reactor, makes its loss less than air core reactor and shell-type air core reactor, and is simpler than iron-core reactor and shell-type air core reactor on the technology, is easy to make the noise when reducing operation.

Concrete solution of the present utility model is: it has coil, insulating part, base, clamping device, termination, it is characterized in that in the coil it being the stem that magnetic conductor is made, the coil outside is the magnetic conductive cylinder that magnetic conductor is made, stem, coil, the magnetic conductive cylinder three is concentric, the magnetic conductor of stem can have air gap, also can not be with air gap, the magnetic conductor of magnetic conductive cylinder can be with air gap, also can be with air gap, and certain insulation distance is arranged between coil and stem and the magnetic conductive cylinder, insulation distance should satisfy the requirement of correspondent voltage grade dielectric strength, each parts is all answered fixation, the magnetic conductor available silicon steel disc of stem and magnetic conductive cylinder, and materials such as non-crystaline amorphous metal are made.

Because the magnetic conductive cylinder that the utility model has adopted stem that magnetic conductor makes and magnetic conductor to make, reduced the magnetic resistance in main flux loop, under the identical situation of coil turn and physical dimension, its inductance value is enhanced about more than once than air core reactor, so the utility model reactor is under same nominal capacity and same nominal reactance situation, coil turn can reduce, thereby has reduced the loss of coil, and the reactor total losses also can reduce.Stem because of not with being connected of iron yoke, so be easier to clamp, reduced the noise of reactor.Two end ends are to the closed-loop path that the space and the magnetic conductive cylinder of magnetic conductive cylinder constitutes main flux jointly up and down by stem and stem for the main flux of reactor, and it is few that Vent drains to the magnetic flux of magnetic conductive cylinder outside, thereby alleviated the injury of magnetic field to environment and human body.

Below in conjunction with accompanying drawing embodiment of the present utility model is done and to be described in further detail.

Fig. 1 is the cross-sectional schematic of the single-phase reactor execution mode of the utility model.

Fig. 2 is the schematic top plan view of the single-phase reactor of the utility model.

Fig. 3 is the magnetic conductive cylinder cross-sectional schematic that has air gap.

Single-phase as shown in Figure 1 reactor, stem 1 is positioned at the center of reactor, stem 1 outside is with coil 2, coil 2 outsides are with magnetic conductive cylinder 3, be insulation fagging 8 between stem 1 and the coil 2, stem 1 lower end is an insulated leg 6, and coil 2 lower ends are insulated legs 5, magnetic conductive cylinder 3 lower ends are insulated legs 4, are base 7 under each insulated leg.Stem 1 center is porose, with stem clamping device 10 stem is clamped.Fill up insulating sheet material between stem 1 each cake, change insulating sheet material thickness adjustable inductance value.The magnetic conductor 13 of magnetic conductive cylinder 3 is fixed on the outside of edge edge tube 11, and with binding device 12 that magnetic conductor 13 colligations of magnetic conductive cylinder 3 are firm, otherwise will produce big noise.The magnetic conductor available silicon steel disc of stem 1 and magnetic conductive cylinder 3 is made, and also available non-crystaline amorphous metal permeability magnetic material etc. is made.

The lead-in wire of coil 2 is connected on the termination 9.Termination 9 is fixed on the upper end of magnetic conductive cylinder 3.

It more than is the general structure of reactor.The height of magnetic conductive cylinder and stem highly helps reducing the total losses of reactor in the design greater than the coil reactance.The magnetic conductor ground connection of magnetic conductive cylinder helps personal safety, and the magnetic conductor of magnetic conductive cylinder is provided with the insulation fracture in case of necessity, as insulation board among Fig. 2 14, in case the machined burrs of magnetic conductor such as silicon steel sheet is overlapped to form the loop mutually, increases supplementary load loss.The insulation distance of coil and magnetic conductive cylinder, stem, base etc. is considered by the correspondent voltage grade.

Then can not remove stem clamping device 10 when the stem 1 of the utility model reactor has air gap, stem 1 centre bore also can remove, and to increase the magnetic conduction cross section, reduces the loss on the magnetic conductor.The outer rim of heart column section can be circular, also can be polygon.

The magnetic conductor of the magnetic conductive cylinder of the utility model reactor can be with air gap, also can make the magnetic conductive cylinder that has one or more air gaps, and the air gap that changes magnetic conductor also can change the inductance value of reactor.As shown in Figure 3, insulating washer 15 is the magnetic conductive loop air gap among the figure, changes the inductance value that gas length promptly can be adjusted reactor.

The utility model can be made dry reactor, also can make oil immersed type.Three single-phase reactors of the utility model can be connected into three-phase reactor.

Claims

1, a kind of reactor, it has coil, insulating part, base, clamping device, termination is characterized in that in the coil it being the stem that magnetic conductor is made, and coil is outward the magnetic conductive cylinder that magnetic conductor is made, and stem, coil, magnetic conductive cylinder three are concentric.

2, a kind of reactor according to claim 1 is characterized in that the magnetic conductor of magnetic conductive cylinder can be with air gap, also air gap can be arranged.