CN201298431Y

CN201298431Y - A dry-type hollow current-limiting reactor

Info

Publication number: CN201298431Y
Application number: CNU2008202216072U
Authority: CN
Inventors: 姚思祥; 苗海涛; 梁艺超
Original assignee: SHAANXI HERONG ELECTRIC GROUP CO Ltd
Current assignee: SHAANXI HERONG ELECTRIC GROUP CO Ltd
Priority date: 2008-09-25
Filing date: 2008-09-25
Publication date: 2009-08-26
Anticipated expiration: 2018-09-25

Abstract

The utility model provides a dry-type hollow current-limiting reactor, including an upper conductive arm, a lower next conductive arm, pillar insulators, an aluminum hoist seat and an iron base, simultaneously setting a reactor solenoid with an upper star frame and a lower star frame, the reactor solenoid is winded by multi-strand transposition aluminum stranded wires, the cross section of each aluminum stranded wire is rectangle and each aluminum stranded wire contains a plurality of aluminum stranded wires, and the cross section of aluminum stranded wire is rectangle. The reactor has small eddy current loss and less consumption of raw materials.

Description

A kind of dry type hollow current-limiting reactor

Technical field

The utility model relates to the reactor in a kind of power industry, specifically relates to a kind of dry type hollow current-limiting reactor.

Background technology

Along with the continuous development of China's power construction, the expansion of net capacity makes the rated value of system short circuit capacity increase rapidly.In order to limit the short circuit current of transmission line, the protection power equipment must be installed current limiting reactor.Though existing current limiting reactor can reduce short circuit current and the voltage of transcient short circuit time system is remained unchanged, and still exists the loss of reactor itself bigger, problem such as more than the materials used.

The utility model content

In order to address the above problem, the utility model provides a kind of dry type hollow current-limiting reactor, and the use of this kind dry type hollow current-limiting reactor can make the loss of dry type hollow current-limiting reactor reduce greatly, has also saved raw-material use simultaneously.

The purpose of this utility model realizes by following proposal: a kind of dry type hollow current-limiting reactor, comprise conductive arm, following conductive arm, post insulator, aluminium rising seat and iron base, a reactor line bag that has broadcast TV programs by satellite frame and lower spider is set simultaneously, described reactor line bag is by the coiling of multiply transposition aluminium stranded conductor, the cross section of described per share aluminium stranded conductor is a rectangle, be made up of many aluminium stranded conductors in the described per share aluminium stranded conductor, the cross section of described every aluminium stranded conductor is a rectangle.

The utility model dry type hollow current-limiting reactor has following beneficial effect:

1, reduced the kelvin effect of aluminum steel, thereby reduced the eddy current loss of aluminum steel,, made reactor more energy-conservation so reduced the loss of reactor;

2, lack than the raw material of taking out consumption with the reactor line bag of circle wire-wound system same model with multiply transposition aluminium stranded conductor coiling reactor line bag, reduced design cost.

3, process operation is convenient, does not have the problem of slip, and the properties of product of being produced are more near design effect, and fabrication error is little.

Description of drawings

Fig. 1 is the structural representation of the utility model dry type hollow current-limiting reactor;

Fig. 2 is the vertical view of Fig. 1;

Fig. 3 is the cross section zoomed-in view of per share aluminium stranded conductor.

Among the figure: 1. the frame of broadcasting TV programs by satellite, 2. go up conductive arm, 3. reactor line bag, 4. lower spider 5. descends conductive arm, 6. post insulator, the 7. aluminium seat that raises, 8. iron base, 9. the pulling bar is 10. strengthened tying up yarn, 11. per share aluminium stranded conductors, 12. every aluminium stranded conductors.

Embodiment

Below in conjunction with accompanying drawing and specific embodiment the utility model dry type hollow current-limiting reactor is further described:

Among Fig. 1, broadcasting TV programs by satellite and long star arm being set on the frame 1 is last conductive arm 2, long star arm is set on the lower spider 4 is conductive arm 5 down, reactor line bag 3 is arranged broadcasting TV programs by satellite between frame 1 and the lower spider 4, be fixed with post insulator 6 in the lower end of lower spider 4, fixedlying connected with aluminium rising seat 7 in the lower end of post insulator 6, is fixed with iron base 8 in the lower end of aluminium rising seat 7.

Among Fig. 2, reactor line bag 3 twines on the bracing frame, is provided with pulling bar 9 in every layer line circle, has on the star frame and strengthens tying up yarn 10.

Among Fig. 3, per share aluminium stranded conductor 11, every aluminium stranded conductor 12.

After energising, conductive line surfaces will be covered with electric charge according to lead, and internal charge seldom, kelvin effect that Here it is.If current limiting reactor adopts circle line or sub-thread lenticular wire to come coiling, because electric current is excessive, every conductive line surfaces is covered with a large amount of electric charges, to cause coil eddy current loss excessive, thereby cause the increase of loss, and adopt the coiling of transposition aluminium stranded conductor, the transposition aluminium stranded conductor is to be formed by some aluminum steel transposition strand systems, so, after per share aluminium stranded conductor energising, on the outer layer surface of CHARGE DISTRIBUTION transposition aluminium stranded conductor.And every aluminum steel transposition layer by layer on this strand aluminium stranded conductor, so, see in per share transposition aluminium stranded conductor cross section, electric charge is approximate to be distributed on the cross section, has reduced the kelvin effect of aluminum steel, thereby has reduced the eddy current loss of aluminum steel, reduce eddy current loss total losses are reduced, thereby make reactor more energy-conservation.

In the practical operation, frame 1 and lower spider 4 center fixed of broadcasting TV programs by satellite have bracing frame, adopting multiply transposition aluminium stranded conductor to carry out coiling on bracing frame 13, is rectangle because per share aluminium stranded conductor 11 is worn face, so convenient when coiling, generally can not produce the slip phenomenon, behind the intact one deck of every coiling, the centre separates with some pulling bars 9, and pulling bar 9 mainly is to form ventilating air passage, be convenient to cross-ventilation and form natural cooling, to improve the heat dispersion of reactor; The such ceoncentrically wound coil of coiling several layers as required, some circle ceoncentrically wound coils are formed reactor line bag 3, twine at the glass fibre of the useful epoxy resin-impregnated of ectonexine of every layer line circle and tightly to seal, and through hot setting, make it to have good globality, and have the mechanical strength height, tolerance short-circuit current rush ability is strong, satisfies that product is moving, heat-staple requirement.Ceoncentrically wound coil is that upper end, back in parallel is welded on the frame 1 of broadcasting TV programs by satellite, the lower end is welded on the lower spider 4, being fixed with the post insulator 6 that is used to insulate in the lower end of lower spider 4, being fixed with the aluminium rising seat of making of non-magnet material 7 in the lower end of post insulator 6, is iron base 8 below aluminium rising seat 7.When carrying out multiply transposition aluminium stranded conductor, in order to make broadcast TV programs by satellite frame 1 and lower spider 4 safer, on broadcast TV programs by satellite frame 1 and lower spider 4, be added with some roads and strengthen tying up yarn 10, be used for fixing starframe.

In use, this reactor is connected in the electric power system, when breaking down, is used for limiting short-circuit current, with the short circuit current restriction in allowed limits, the voltage of transcient short circuit time system is remained unchanged, the safety of protection power equipment in system with lead-in wire.

Claims

1. a dry type hollow current-limiting reactor comprises conductive arm, following conductive arm, post insulator, aluminium rising seat and iron base; It is characterized in that, a reactor line bag that has broadcast TV programs by satellite frame and lower spider is set, described reactor line bag is by the coiling of multiply transposition aluminium stranded conductor, the cross section of described per share aluminium stranded conductor is a rectangle, be made up of many aluminium stranded conductors in the described per share aluminium stranded conductor, the cross section of described every aluminium stranded conductor is a rectangle.