CN106571214A - Current limiting reactor with instantaneous adjustable reactance - Google Patents
Current limiting reactor with instantaneous adjustable reactance Download PDFInfo
- Publication number
- CN106571214A CN106571214A CN201610968775.7A CN201610968775A CN106571214A CN 106571214 A CN106571214 A CN 106571214A CN 201610968775 A CN201610968775 A CN 201610968775A CN 106571214 A CN106571214 A CN 106571214A
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- CN
- China
- Prior art keywords
- limiting reactor
- housing
- wall
- current
- current limiting
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F29/00—Variable transformers or inductances not covered by group H01F21/00
- H01F29/08—Variable transformers or inductances not covered by group H01F21/00 with core, coil, winding, or shield movable to offset variation of voltage or phase shift, e.g. induction regulators
- H01F29/10—Variable transformers or inductances not covered by group H01F21/00 with core, coil, winding, or shield movable to offset variation of voltage or phase shift, e.g. induction regulators having movable part of magnetic circuit
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/02—Casings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/06—Mounting, supporting or suspending transformers, reactors or choke coils not being of the signal type
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
The invention discloses a current limiting reactor with an instantaneous adjustable reactance, wherein the current limiting reactor belongs to the technical field of reactors. The current limiting reactor comprises a housing which is provided with a base at the bottom. The bottom of the inner chamber of the housing is provided with a control box. The left side of the control box is provided with a motor. A driving wheel sleeves the outer wall of the output shaft of the motor. According to the current limiting reactor with the instantaneous adjustable reactance, through connection between a snapping board and a snapping trough on the external wall of the housing, higher connection stability is realized; through arranging a gasket, insulating property of the current limiting reactor is improved; through arranging a movable abutting core, adjustable reactance and reactance range increase of the current limiting reactor are realized; through cooperation between the control box and the motor, relatively short rotation period of the movable abutting core is realized, thereby improving safety in use of electric power equipment and reducing power equipment damage; and on the condition quick current increase caused by shortcirucit occurs in the circuit, the current limiting reactor satisfies a requirement for limiting fault current in an electric power system and ensuring stability of the electric power system in a relatively good manner.
Description
Technical field
The present invention relates to reactor technical field, specially a kind of current-limiting reactor of instantaneous regulative reactance.
Background technology
With developing rapidly for power system, single-machine capacity, station capacity, substation capacity, city and the center of industry
Load and the interconnection between increase, the power system of load density, cause the short circuit current size in power system constantly to increase
Plus.At present, short circuit current it is excessive in addition it is exceeded oneself become restriction power network development key factor.It is to solve short circuit electricity to change switch
One of means of stream excessive problem, but the exceeded transformer station of short circuit current is generally load-center substation, the number of switches that need to be changed
It is numerous, and most of primary equipment and grounded screen etc. also need replacing.Although changing switch to the operation characteristic of electrical network without impact,
But invest big, long in time limit using this means, make electrical network load-center substation be chronically at non-normal operation mode.Now, it is domestic
The method for generally adopting outward is the growth of limiting short-circuit current, and the essence of current-limiting reactor is by increasing system impedance, reducing
The tightness degree of electrical network, so as to reduce the short circuit current of some branches of substation bus bar.Current-limiting reactor in middle low-pressure system once
It is widely used, with the raising of switch manufacture level, the current-limiting reactor usage amount of middle-and-high voltage system is gradually decreased, two
Kind of adjustable series reactor solves in varying degrees that classical tandem reactor running wastage is big, the shortcoming that induction reactance value is fixed,
And it is less to the stability influence of power system.But the induction reactance adjustment of turn adjusting controllable reactor reaches the action time of predetermined value
Up to the several seconds, direct current magnetism-assisting adjusts the adjustment time of permeability formula controlled reactor shorter, but also reaches 100ms or so, even more
It is long.Now, the power system of the accident that is short-circuited, especially straight-flow system, it may occur that major accident, for this purpose, we carry
A kind of current-limiting reactor of instantaneous regulative reactance is gone out.
The content of the invention
It is an object of the invention to provide a kind of current-limiting reactor of instantaneous regulative reactance, to solve above-mentioned background technology in
, mainly using the number of turn is adjusted, the response time is longer, the power system of the accident that is short-circuited, especially for the existing current-limiting reactor for proposing
It is straight-flow system, it may occur that the problem of major accident.
For achieving the above object, the present invention provides following technical scheme：A kind of current-limiting reactor of instantaneous regulative reactance, bag
Housing is included, the bottom of the housing is provided with base, and the bottom of the housing cavity is provided with control chamber, a left side for the control chamber
Side is provided with motor, and the outer wall of the motor output shaft is socketed with drivewheel, and the left and right sides of the inner walls is all provided with
It is equipped with bracing frame, one end of support frame as described above is connected with insulated connecting piece, one end of the insulated connecting piece is connected with fixture, two
Connect cored by fixture between the group insulated connecting piece, the bottom of the iron core outer wall is connected with driven by bearing pin
Take turns, and driven pulley is connected by belt with drivewheel, and movable core, and a left side for movable core are provided with the right side of the driven pulley
End is connected with the outer wall of bearing pin, and winding coil is wrapped with the top of the iron core outer wall, and two groups are provided with the top of the housing
Binding post, and the bottom of two groups of binding posts is connected respectively with the left and right two ends of winding coil, the control chamber respectively with motor,
Conducting rod, binding post and winding coil are electrically connected with.
Preferably, the base includes base plate, and the top left and right two ends of the base plate are provided with clamp, the housing
Outer wall is provided with the draw-in groove being connected with clamp adaptation, and the bottom of the base plate is provided with pad, and pad by adhesive linkage and base plate
Bonding.
Preferably, the fixture includes connecting pole, and the outer wall of the connecting pole is provided with external screw thread, the insulated connecting piece
Right-hand member is provided with the screwed hole being connected with connecting pole adaptation, and the top and bottom of the connecting pole right side wall is respectively connected with clamping plate, institute
The right-hand member for stating clamping plate is connected with trip bolt.
Preferably, the binding post includes conducting rod, and the outer wall of the conducting rod is socketed with sealing ring, and sealing ring clamping
At the top of housing, the bottom of the conducting rod is connected with binding post, and conducting rod by binding post and one end of winding coil
Connection.
Compared with prior art, the invention has the beneficial effects as follows：The current-limiting reactor of the instantaneous regulative reactance, by clamp
It is connected with the draw-in groove of housing exterior walls, connects more stable, by the setting of pad the current-limiting reactor insulating properties is strengthened, leads to
The setting for crossing activity patch core causes the reactance of the current-limiting reactor adjustable and scope increase, mutual with motor by control chamber
Coordinate and cause the rotation period of activity patch core shorter, increase the safety in utilization of power equipment, reduce the damage to power equipment,
When short circuit causes that electric current is quickly raised in circuit, what the current-limiting reactor had both reached power system fault current limiting will
Ask, and preferably ensure the stability of power system.
Description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 is understructure schematic diagram of the present invention；
Fig. 3 is present clip structural representation；
Fig. 4 is binding post structure schematic diagram of the present invention.
In figure：1 housing, 2 bases, 21 clamps, 22 base plates, 23 pads, 3 control chambers, 4 motor, 5 drivewheels, 6 support
Frame, 7 insulated connecting pieces, 8 fixtures, 81 connecting poles, 82 clamping plates, 83 trip bolts, 9 iron cores, 10 driven pulleys, 11 movable cores, 12
Winding coil, 13 binding posts, 131 conducting rods, 132 sealing rings, 133 binding posts.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than the embodiment of whole.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Fig. 1-4 are referred to, the present invention provides a kind of technical scheme：A kind of current-limiting reactor of instantaneous regulative reactance, including
Housing 1, the bottom of the housing 1 is provided with base 2, and the bottom of the inner chamber of the housing 1 is provided with control chamber 3, the control chamber 3
Left side be provided with motor 4, the outer wall of the output shaft of the motor 4 is socketed with drivewheel 5, the left and right of the inwall of the housing 1
Both sides are provided with bracing frame 6, and one end of support frame as described above 6 is connected with insulated connecting piece 7, one end of the insulated connecting piece 7
Fixture 8 is connected with, cored 9 are connected by fixture 8 between insulated connecting piece 7 described in two groups, the bottom of the outer wall of the iron core 9 leads to
Cross bearing pin and be connected with driven pulley 10, and driven pulley 10 is connected by belt with drivewheel 5, the right side of the driven pulley 10 is provided with
Movable core 11, and the left end of movable core 11 is connected with the outer wall of bearing pin, and at the top of the outer wall of the iron core 9 winding wire is wrapped with
Circle 12, the top of the housing 1 is provided with two groups of binding posts 13, and the bottom of two groups of binding posts 13 respectively with winding coil 12
Left and right two ends connect, and the control chamber 3 electrically connects respectively with motor 4, conducting rod 131, binding post 133 and winding coil 12
Connect.
Wherein, the base 2 includes base plate 22, and base plate is played a supporting role, and the top left and right two ends of the base plate 22 are equal
Clamp 21 is provided with, clamp 21 is symmetrical arranged, the outer wall of the housing 1 is provided with the draw-in groove being connected with the adaptation of clamp 21, by card
Plate 21 is connected with draw-in groove so that housing 1 is more consolidated with the connection of base 2, and the bottom of the base plate 22 is provided with pad 23, pad
Piece 23 plays insulating effect, and pad 23 is bonding with base plate 22 by adhesive linkage, and the fixture 8 includes connecting pole 81, connecting pole
81 play a supporting role, and the outer wall of the connecting pole 81 is provided with external screw thread, and the right-hand member of the insulated connecting piece 7 is provided with and connecting pole
The screwed hole of 81 adaptation connections, the top and bottom of the right side wall of the connecting pole 81 is respectively connected with clamping plate 82, and two groups of clamping plates 82 are pressed from both sides
In the outer wall of iron core 9, the right-hand member of the clamping plate 82 is connected with trip bolt 83, and two groups of clamping plates 82 are connected by trip bolt 83,
The binding post 13 includes conducting rod 131, and the outer wall of the conducting rod 131 is socketed with sealing ring 132, and the clamping of sealing ring 132
At the top of housing 1, the bottom of the conducting rod 131 is connected with binding post 133, and conducting rod 131 by binding post 133 with around
One end connection of group coil 12.
Operation principle：Two groups of binding posts 13 are connected in circuit, base 2 is placed in dry environment, when using, when
Electric current is punctual in normal water in circuit, and movable core 11 is in separated position with the right-hand member of iron core 9, and now current-limiting reactor is made
Use for common current-limiting reactor, when be short-circuited in circuit etc. failure when, electric current steeply rises in circuit, the moment of control chamber 3
The current conditions in circuit are monitor, when electric current is raised, the control motor 4 of control chamber 3 works, and motor 4 passes through the band of drivewheel 5
Dynamic driven pulley 10 is rotated, and movable core 11 is drawn close in the presence of driven pulley 10 to rapid iron core 9, with movable core 11 and ferrum
The distance of core 9 is gradually reduced, and the reactance value of current-limiting reactor is quickly raised, and reaches the effect of protection circuit.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding can carry out various changes, modification, replacement to these embodiments without departing from the principles and spirit of the present invention
And modification, the scope of the present invention be defined by the appended.
Claims (4)
1. a kind of current-limiting reactor of instantaneous regulative reactance, including housing (1), the bottom of the housing (1) is provided with base
(2), it is characterised in that：The bottom of housing (1) inner chamber is provided with control chamber (3), is provided with the left of the control chamber (3)
Motor (4), the outer wall of motor (4) output shaft is socketed with drivewheel (5), the left and right sides of housing (1) inwall
Bracing frame (6) is provided with, one end of support frame as described above (6) is connected with insulated connecting piece (7), the insulated connecting piece (7)
One end is connected with fixture (8), connects cored (9) by fixture (8) between insulated connecting piece (7) described in two groups, the iron core
(9) bottom of outer wall is connected with driven pulley (10) by bearing pin, and driven pulley (10) is connected by belt with drivewheel (5), institute
State and movable core (11) is provided with the right side of driven pulley (10), and the left end of movable core (11) is connected with the outer wall of bearing pin, institute
State and winding coil (12) be wrapped with the top of iron core (9) outer wall, two groups of binding posts (13) are installed at the top of the housing (1),
And the bottom of two groups of binding posts (13) is connected respectively with the left and right two ends of winding coil (12), the control chamber (3) respectively with electricity
Motivation (4), conducting rod (131), binding post (133) and winding coil (12) are electrically connected with.
2. the current-limiting reactor of a kind of instantaneous regulative reactance according to claim 1, it is characterised in that：The base (2)
Including base plate (22), the top left and right two ends of the base plate (22) are provided with clamp (21), and the outer wall of the housing (1) is provided with
The draw-in groove being connected with clamp (21) adaptation, the bottom of the base plate (22) is provided with pad (23), and pad (23) by bonding
Layer is bonding with base plate (22).
3. the current-limiting reactor of a kind of instantaneous regulative reactance according to claim 1, it is characterised in that：The fixture (8)
Including connecting pole (81), the outer wall of the connecting pole (81) is provided with external screw thread, and the right-hand member of the insulated connecting piece (7) is provided with and connects
The screwed hole of post (81) adaptation connection is connect, the top and bottom of connecting pole (81) right side wall is respectively connected with clamping plate (82), institute
The right-hand member for stating clamping plate (82) is connected with trip bolt (83).
4. the current-limiting reactor of a kind of instantaneous regulative reactance according to claim 1, it is characterised in that：The binding post
(13) including conducting rod (131), the outer wall of the conducting rod (131) is socketed with sealing ring (132), and sealing ring (132) clamping
At the top of housing (1), the bottom of the conducting rod (131) is connected with binding post (133), and conducting rod (131) by wiring
Post (133) is connected with one end of winding coil (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610968775.7A CN106571214B (en) | 2016-10-27 | 2016-10-27 | A kind of current-limiting reactor of instantaneous regulative reactance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610968775.7A CN106571214B (en) | 2016-10-27 | 2016-10-27 | A kind of current-limiting reactor of instantaneous regulative reactance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106571214A true CN106571214A (en) | 2017-04-19 |
| CN106571214B CN106571214B (en) | 2019-10-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610968775.7A Expired - Fee Related CN106571214B (en) | 2016-10-27 | 2016-10-27 | A kind of current-limiting reactor of instantaneous regulative reactance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106571214B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112700949A (en) * | 2020-12-08 | 2021-04-23 | 屈汉明 | Current-limiting reactor structure for limiting overcurrent of power system |
| CN114566350A (en) * | 2022-02-26 | 2022-05-31 | 戴永春 | Adjustable reactance current-limiting reactor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102360734A (en) * | 2011-09-19 | 2012-02-22 | 李景禄 | Intelligent wedged smoothly adjustable reactor |
| CN203397855U (en) * | 2013-09-05 | 2014-01-15 | 河海大学常州校区 | Moving iron core of rotary iron core type adjustable reactor |
| CN103824687A (en) * | 2013-10-30 | 2014-05-28 | 华北电力大学（保定） | Adjustable-inductance reactor with circular iron core |
| CN203690078U (en) * | 2013-11-01 | 2014-07-02 | 江苏南瑞帕威尔电气有限公司 | Rotary iron core type adjustable reactor |
| CN203910418U (en) * | 2014-05-13 | 2014-10-29 | 江苏省电力公司南京供电公司 | Adjustable-power type electric reactor |
| CN105679507A (en) * | 2016-03-30 | 2016-06-15 | 许继集团有限公司 | Instantaneous adjustable electric reactance current limiting reactor |
| CN105719819A (en) * | 2016-04-18 | 2016-06-29 | 上海电力学院 | Reactor capable of adjusting capacity online |
-
2016
- 2016-10-27 CN CN201610968775.7A patent/CN106571214B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102360734A (en) * | 2011-09-19 | 2012-02-22 | 李景禄 | Intelligent wedged smoothly adjustable reactor |
| CN203397855U (en) * | 2013-09-05 | 2014-01-15 | 河海大学常州校区 | Moving iron core of rotary iron core type adjustable reactor |
| CN103824687A (en) * | 2013-10-30 | 2014-05-28 | 华北电力大学（保定） | Adjustable-inductance reactor with circular iron core |
| CN203690078U (en) * | 2013-11-01 | 2014-07-02 | 江苏南瑞帕威尔电气有限公司 | Rotary iron core type adjustable reactor |
| CN203910418U (en) * | 2014-05-13 | 2014-10-29 | 江苏省电力公司南京供电公司 | Adjustable-power type electric reactor |
| CN105679507A (en) * | 2016-03-30 | 2016-06-15 | 许继集团有限公司 | Instantaneous adjustable electric reactance current limiting reactor |
| CN105719819A (en) * | 2016-04-18 | 2016-06-29 | 上海电力学院 | Reactor capable of adjusting capacity online |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112700949A (en) * | 2020-12-08 | 2021-04-23 | 屈汉明 | Current-limiting reactor structure for limiting overcurrent of power system |
| CN112700949B (en) * | 2020-12-08 | 2022-01-11 | 山东泰开电力电子有限公司 | Current-limiting reactor structure for limiting overcurrent of power system |
| CN114566350A (en) * | 2022-02-26 | 2022-05-31 | 戴永春 | Adjustable reactance current-limiting reactor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106571214B (en) | 2019-10-15 |
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