CN203311970U - Iron core valve type electric reactor - Google Patents
Iron core valve type electric reactor Download PDFInfo
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- CN203311970U CN203311970U CN2013203516075U CN201320351607U CN203311970U CN 203311970 U CN203311970 U CN 203311970U CN 2013203516075 U CN2013203516075 U CN 2013203516075U CN 201320351607 U CN201320351607 U CN 201320351607U CN 203311970 U CN203311970 U CN 203311970U
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Abstract
The utility model relates to an iron core valve type electric reactor. Compared with the prior art, the defects that a current limiting device of the electric reactor is high in operating cost, large in potential risk and complex in structure are overcome. The iron core valve type electric reactor comprises an iron core valve magnet armature arm (4), a main iron core shunt (111), an iron core (1) and a main edge reactance winding (2) which is wound on the iron core (1). The main iron core shunt (111) is provided with a short circuit ring winding (3) in a winding mode. The main edge reactance winding (2) on the iron core (1) and the short circuit ring winding (3) on the main iron core shunt (111) form a coupling loop through the iron core valve magnet armature arm (4). By means of the iron core valve type electric reactor, when short trouble happens, short-circuit currents can be limited deeply and effectively, and the advantages of being small in reactive loss, little in actuating time in times of failure and high in response speed can be achieved in a normal operation state.
Description
Technical field
The utility model relates to the reactor technical field, is a kind of iron core valve-type reactor specifically.
Background technology
Along with increasing sharply of net capacity in electric power system and load, the short circuit current of system also constantly rises, and the capacity of short circuit in a lot of areas has has met and exceeded the capacity that cut-offs of circuit breaker, has brought very large hidden danger for the safe and stable operation of electric power system.Short trouble has become one of distinct issues of the equipment that damages in electric power, harm safe operation of power system.In order to address this problem, the prevalent means of restriction system short circuit current is by the reactance in the increase system at present, namely adopt high-impedance transformer, series reactor in system, current limiting reactor two ends are connected in parallel after high-speed switch the technological means such as reactor shorted on both ends are reached to the energy-conservation purpose of current limliting.Simultaneously also there are many countries researching and developing the new technology that superconductive current limiter carrys out limiting short-circuit current.
But prior art also exists many weak points, if use high-speed switch by the reactor shorted on both ends, the reliability of this switch will be brought up to a new higher requirement, in case hydraulic performance decline or fault, tripping will produce immeasurable serious consequence when system is short-circuited.If use high-impedance transformer and reactor, the input cost of system that certainly will increase electric power widely, and increased the reactive loss of system, the efficiency that make that the power transmission and transformation line terminal voltage reduces, loss is large, will reduce power delivery, and unadjustable.Therefore must be in system extra input reactive power compensator again, this will further increase the construction cost of electric power system.The high tc superconducting fault current limiter of actively researching and developing in the world simultaneously, although obtain short circuit Limited Current effect preferably, but its cost is very expensive, complex structure, as the cryogenic system that wherein relates to, superconductor, volume framework etc., and must the professional safeguard, increased operating cost.And its many core technologies, security performance, efficiency etc. still need constantly to overcome solution, do not reach meeting the demands of actual use.How to develop a kind of low price, efficient, reliable, simple in structure, reactance is little, can provide the reactor of metering function to become and be badly in need of the technical problem solved.
The utility model content
The purpose of this utility model is for the operating cost that solves reactor current-limiting apparatus in prior art is high, potential safety hazard is large, baroque defect, provides a kind of iron core valve-type reactor to solve the problems referred to above.
To achieve these goals, the technical solution of the utility model is as follows:
A kind of iron core valve-type reactor, comprise iron core valve armature arm, main iron core along separate routes, iron core and around the main limit reactance winding on iron core, in described main iron core shunt, be wound with the short-circuited conducting sleeve winding, the main limit reactance winding on described iron core forms coupling circuit by the short-circuited conducting sleeve winding in iron core valve armature arm and main iron core shunt.
Also comprise from iron core along separate routes, described is the shunt iron core with main iron core shunt common combination from iron core along separate routes; On described main limit reactance winding, be connected with the current monitoring moving component, described current monitoring moving component mechanical connection iron core valve armature arm, described current monitoring moving component for monitor main limit reactance winding after the electric current of occur to surpass setting by iron core valve armature arm to from iron core, moving along separate routes.
Described current monitoring moving component comprises overcurrent release, by spring fitting in the upper fixed seat on iron core valve armature arm top, with upper latch notch, mutually engage the lower fixed seat that is movably installed in iron core valve armature arm bottom by lower bayonet socket, described main limit reactance winding is on overcurrent release, and described overcurrent release and trigger unit are flexibly connected.
Described trigger unit comprises cross bar and armature, and described armature top and overcurrent release are flexibly connected, and armature lever fixedly is equipped with in described armature bottom, and the distance of described armature bottom and overcurrent release is greater than the distance of armature lever and cross bar.
Described overcurrent release is that magnetictrip or electronic current detect trip gear.
The material of described iron core is silicon steel sheet or amorphous alloy material.
Described spring is powerful stretching back-moving spring.
Also comprise from iron core along separate routes, described main iron core along separate routes and be fixed on along separate routes the iron core both sides from iron core, described iron core valve armature arm is movably fixed on iron core, on described main limit reactance winding, be connected with the current monitoring moving component, described current monitoring moving component mechanical connection iron core valve armature arm, described current monitoring moving component occurs after the electric current of setting iron core valve armature arm to from iron core, moving along separate routes for monitoring main limit reactance winding.
Also comprise the spring support holder be fixed on from the iron core shunt, by brute spring, be connected with iron core valve armature arm on described spring support holder.
Beneficial effect
A kind of iron core valve-type reactor of the present utility model, compared with prior art can be when short trouble occurs, but the effective limiting short-circuit current of the degree of depth, and under the system normal operating conditions, be the very little current-limiting apparatus of a kind of reactance.The characteristics that have that reactive loss under normal operating condition is little, operate time are little during fault, reaction speed is fast, can the short circuit current initial stage of rising namely limit its increase, without the advantages such as impact peak value of short of expection.Have with low cost, easily manufactured, simple in structure, operational reliability is high, does not need the plurality of advantages such as the special messenger safeguards.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model
Fig. 2 is the structural representation of the first execution mode of the present utility model
Fig. 3 is the structural representation of the shunt iron core of the utility model the first execution mode
Fig. 4 is that the utility model the first execution mode moves towards figure at normal condition lower magnetic force line
Fig. 5 is that the utility model the first execution mode moves towards figure at guard mode lower magnetic force line
Fig. 6 is the plan structure figure of the utility model the second execution mode
Fig. 7 is the end TV structure figure of the utility model the second execution mode
Fig. 8 is the removal main limit reactance winding of the utility model the second execution mode and the structural representation of short-circuited conducting sleeve winding
Wherein, iron core, 12-upper fixed seat, 13-lower fixed seat, 101-armature lever, 111-main iron core are along separate routes along separate routes, 112-is from iron core shunt, 201-transmission line connection jaws one, 202-transmission line connection jaws two, 35-spring support holder, 36-brute spring for bayonet socket under 1-iron core, 2-master limit reactance winding, 3-short-circuited conducting sleeve winding, 4-iron core valve armature arm, 5-spring, 6-, 7-upper latch notch, 8-cross bar, 9-overcurrent release, 10-armature, 11-.
Embodiment
For making that architectural feature of the present utility model and the effect reached are had a better understanding and awareness, in order to preferred embodiment and accompanying drawing, coordinate detailed explanation, be described as follows:
As shown in Figure 1, a kind of iron core valve-type reactor described in the utility model, comprise iron core valve armature arm 4, main iron core along separate routes 111, iron core 1 and around the main limit reactance winding 2 on iron core 1, in described main iron core shunt 111, be wound with short-circuited conducting sleeve winding 3, the main limit reactance winding 2 on described iron core 1 forms coupling circuits by iron core valve armature arm 4 and the short-circuited conducting sleeve winding 3 in main iron core shunt 111.Now according to the impedance transformation principle of ideal transformer 1:1, the impedance of the short-circuited conducting sleeve winding 3 in main iron core shunt 111 is very little approximates zero, now on iron core 1, main limit reactance winding 2 also approximates zero, can be used as wire and use, thereby guaranteed that the low-loss of main limit reactance winding 2 on iron core 1 normally moves.
From iron core shunt 112 and main iron core shunt 111 common combinations, it is shunt iron core 11; On described main limit reactance winding 2, be connected with the current monitoring moving component, described current monitoring moving component mechanical connection iron core valve armature arm 4, described current monitoring moving component occurs after the electric current of setting iron core valve armature arm 4 to from iron core, 112 moving along separate routes for monitoring main limit reactance winding 2.At first current setting value is set, for example 60 kilo-amperes.When electric current surpasses 60 kilo-ampere, electric current on main limit reactance winding 2 has also just surpassed set point, the involution under the effect of brute spring of iron core valve armature arm 4 is arrived from iron core shunt 112 Light Conditions, now owing to from iron core shunt 112, there is no short-circuited winding, just form the effect of inductance, reached the purpose of limiting short-circuit current.Protected the safety of transmission system.
As first embodiment of the present utility model, as shown in Figure 2, described current monitoring moving component comprise overcurrent release 9, by spring 5 be installed on iron core valve armature arm 4 tops upper fixed seat 12, by lower bayonet socket 6 and upper latch notch 7, mutually engage the lower fixed seat 13 that is movably installed in iron core valve armature arm 4 bottoms, described main limit reactance winding 2 is on overcurrent release 9, and described overcurrent release 9 is flexibly connected with trigger unit.Overcurrent release 9, iron core 1 and around the main limit reactance winding 2 on iron core 1 and overcurrent release 9, main limit reactance winding 2 first around after on iron core 1 again on overcurrent release 9, on main limit reactance winding 2, transmission line connection jaws 1 and transmission line connection jaws 2 202 are arranged, be used to connecting transmission line.Described overcurrent release 9 is flexibly connected with trigger unit, is flexibly connected and has guaranteed that trigger unit can be according to electromagnetic force and activity.Iron core 11 comprises main iron core shunt 111 and 112 combines along separate routes from iron core along separate routes, as shown in Figure 3, is the shape of a tree type.In main iron core shunt 111, be wound with short-circuited conducting sleeve winding 3, under the normal rating operating state, by short-circuited conducting sleeve winding 3 short circuits, show as very little leakage inductance reactance value due to main iron core shunt 111.Iron core valve armature arm 4 is be used to carrying out shunt selection effect, and iron core valve armature arm 4 tops are connected on upper fixed seat 12 by spring 5, and iron core valve armature arm 4 bottoms mutually engage and are movably installed on lower fixed seat 13 by lower bayonet socket 6 and upper latch notch 7.Lower bayonet socket 6 and upper latch notch 7 engage mutually, by touching upper latch notch 7, lower bayonet socket 6 and upper latch notch 7 can be untied to the involution under the releasable effect of spring 5 storage of iron core valve armature arm 4.Iron core 1, iron core valve armature arm 4 and main iron core 111 are coupled along separate routes, and the magnetic line of force so forms the iron core flux loop of a closure to iron core 1 after moving towards from iron core 1 to iron core valve armature arm 4 more again after shunt iron core 11 after main iron core shunt 111.
Trigger unit comprises cross bar 8 and armature 10, described armature 10 tops and overcurrent release 9 are flexibly connected, armature lever 101 fixedly is equipped with in described armature 10 bottoms, the distance of described armature 10 bottoms and overcurrent release 9 is greater than the distance of armature lever 101 and cross bar 8, can guarantee that like this armature lever 101 can have enough distances to knock cross bar 8, causes lower bayonet socket 6 and upper latch notch 7 to be untied.Described overcurrent release 9 is that magnetictrip or electronic current detect trip gear, is less than 1 millisecond operate time.The material of iron core 1 can be silicon steel sheet or amorphous alloy material, and spring 5 is preferably powerful stretching back-moving spring, and result of use is better like this.
During actual the use, transmission line connection jaws 1 is connected respectively entering of transmission line and goes out with transmission line connection jaws 2 202, by overcurrent release 9, sets a protection value in advance.As shown in Figure 4, iron core valve armature arm 4 is operated in main iron core 111 initial condition along separate routes, when main limit reactance winding 2 passes through rated current, by 3 short circuits of short-circuited conducting sleeve winding, at this moment inductance value is very little, thereby reactance is little, impact on system is very little, is equivalent to wire the same as delivered current.When main limit reactance winding 2 passes to electric current, main limit reactance winding 2 will produce self-induced magnetic flux, the major part of self-induced magnetic flux by interlinkage to short-circuited conducting sleeve winding 3.When the electric current on main limit reactance winding 2 changes, its self-induced magnetic flux also will change with electric current.According to law of magnetic induction, except in main limit reactance winding 2, producing self induction voltage, also will in short-circuited conducting sleeve winding 3, also produce induced voltage.According to the ideal transformer model, ideal transformer be one can not energy storage the multiterminal element, the instantaneous power identically vanishing that its absorbs.Ideal transformer, except voltage of transformation and electric current, can also be used to transforming impedance, 3 short circuits of short-circuited conducting sleeve winding, and the terminal voltage of short-circuited conducting sleeve winding 3 is zero, the input impedance of main limit reactance winding 2 is also zero.
When the electric current in iron core 1 increases rapidly, after electronic trip unit 9 detects electric current and surpasses preset value, start rapidly in 1 millisecond.Armature 10 is under the driving of main limit reactance winding 2 electric currents, and adhesive rapidly, clash into cross bar 8 simultaneously, and cross bar 8 is opened lower bayonet socket 6 and upper latch notch 7 and untied after promoting upper fore shaft 7, thus Iron Release core valve armature arm 4.As shown in Figure 5, iron core valve armature arm 4 breaks away from main iron core shunt 111 under the effect of spring 5, with 112 connections from the iron core loop, involution is arrived from iron core shunt 112 Light Conditions, and now the iron core loop of the iron core loop of main limit reactance winding 2 and short-circuited conducting sleeve winding 3 disconnects does not fully have the magnetic flux interlinkage.Main limit reactance winding 2 independently has flux circuit of one's own, in circuit, shows as the impedance operator of inductance, reaches the purpose of current limliting, thereby plays the short-circuit protection effect.
As second embodiment of the present utility model, as shown in Figure 6 and Figure 7, comprise from iron core along separate routes 112, described main iron core along separate routes 111 and 112 be fixed on iron core 1 both sides along separate routes from iron core, as shown in Figure 8, fixing mode can adopt one-shot forming to be made.Described iron core valve armature arm 4 is movably fixed to the top of iron core 1, on described main limit reactance winding 2, be connected with the current monitoring moving component, described current monitoring moving component mechanical connection iron core valve armature arm 4, described current monitoring moving component occurs after the electric current of setting iron core valve armature arm 4 to from iron core, 112 moving along separate routes for monitoring main limit reactance winding 2.The current monitoring moving component can adopt electronic monitoring and the relevant device used in prior art, as long as can after surpassing the setting electric current, can under electromagnetic action, move by main limit reactance winding 2.Also comprise and being fixed on from the iron core spring support holder 35 on 112 along separate routes, spring support holder 35 is for the connection of brute spring 36 and iron core valve armature arm 4, and in steering procedure, prevents from producing from iron core along separate routes 112.When concrete the use; iron core valve armature arm 4 first is movably fixed on iron core 1; when the main limit reactance winding 2 of electric current process that surpasses the setting current value is arranged; under the effect of current monitoring moving component; iron core valve armature arm 4 breaks away from main iron core and 111 turns to from iron core shunt 112 along separate routes under the effect of spring 5; play equally the inductance effect, protected the safety of transmission system.
The utility model utilizes quick switching device, when power transmission and transformation line is short-circuited, reactance value is realized to the short-circuit current limitation function by the method that Z0 smoothly is converted to Zm.Because the utility model is by changing mechanical structure and the state of reactance transformer iron core, and in circuit, the height of size, the electric pressure of electric current is irrelevant, there is no the restriction of curtage grade, so application is very broad.With existing electric power system current limiting technique, compare, the utlity model has that under normal operating condition, idle power consumption is little, loss is low, during fault, be less than 1 millisecond operate time, reaction speed is fast and can limit its growth at the short circuit current initial stage of rising, the advantages and with low cost such as impact peak value of short without expection, easily manufactured, operational reliability is high, non-maintaining, and therefore very large market application foreground is arranged.
Above demonstration and described basic principle of the present utility model, principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; what in above-described embodiment and specification, describe is principle of the present utility model; the utility model also has various changes and modifications under the prerequisite that does not break away from the utility model spirit and scope, and these changes and improvements all fall in claimed scope of the present utility model.The protection range that the utility model requires is defined by appending claims and equivalent thereof.
Claims (9)
1. iron core valve-type reactor, it is characterized in that: comprise iron core valve armature arm (4), main iron core (111), iron core (1) and around the main limit reactance winding (2) on iron core (1) along separate routes, described main iron core is wound with short-circuited conducting sleeve winding (3) on (111) along separate routes, and the main limit reactance winding (2) on described iron core (1) forms coupling circuit by iron core valve armature arm (4) and the short-circuited conducting sleeve winding (3) in main iron core shunt (111).
2. a kind of iron core valve-type reactor according to claim 1 is characterized in that: also comprise from iron core (112) along separate routes, described from iron core along separate routes (112) and main iron core along separate routes (111) common combination be shunt iron core (11); On described main limit reactance winding (2), be connected with the current monitoring moving component, described current monitoring moving component mechanical connection iron core valve armature arm (4), described current monitoring moving component for monitor main limit reactance winding (2) after the electric current of occur to surpass setting by iron core valve armature arm (4) to from iron core along separate routes (112) mobile.
3. a kind of iron core valve-type reactor according to claim 2, it is characterized in that: described current monitoring moving component comprise overcurrent release (9), by spring (5) be installed on iron core valve armature arm (4) top upper fixed seat (12), by lower bayonet socket (6), mutually engage with upper latch notch (7) lower fixed seat (13) that is movably installed in iron core valve armature arm (4) bottom, described main limit reactance winding (2) is upper around overcurrent release (9), and described overcurrent release (9) is flexibly connected with trigger unit.
4. a kind of iron core valve-type reactor according to claim 3, it is characterized in that: described trigger unit comprises cross bar (8) and armature (10), described armature (10) top and overcurrent release (9) are flexibly connected, armature lever (101) fixedly is equipped with in described armature (10) bottom, and the distance of described armature (10) bottom and overcurrent release (9) is greater than the distance of armature lever (101) and cross bar (8).
5. a kind of iron core valve-type reactor according to claim 4 is characterized in that: described overcurrent release (9) detects trip gear for magnetictrip or electronic current.
6. a kind of iron core valve-type reactor according to claim 4, it is characterized in that: the material of described iron core (1) is silicon steel sheet or amorphous alloy material.
7. a kind of iron core valve-type reactor according to claim 4, it is characterized in that: described spring (5) is powerful stretching back-moving spring.
8. a kind of iron core valve-type reactor according to claim 1, it is characterized in that: also comprise from iron core shunt (112), described main iron core along separate routes (111) and from iron core along separate routes (112) be fixed on iron core (1) both sides, described iron core valve armature arm (4) is movably fixed on iron core (1), on described main limit reactance winding (2), be connected with the current monitoring moving component, described current monitoring moving component mechanical connection iron core valve armature arm (4), described current monitoring moving component for the electric current of monitoring main limit reactance winding (2) and occur setting after by iron core valve armature arm (4) to from iron core along separate routes (112) mobile.
9. a kind of iron core valve-type reactor according to claim 8, it is characterized in that: also comprise the spring support holder (35) be fixed on from iron core shunt (112), described spring support holder (35) is upper to be connected with iron core valve armature arm (4) by brute spring (36).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203516075U CN203311970U (en) | 2013-06-19 | 2013-06-19 | Iron core valve type electric reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203516075U CN203311970U (en) | 2013-06-19 | 2013-06-19 | Iron core valve type electric reactor |
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| Publication Number | Publication Date |
|---|---|
| CN203311970U true CN203311970U (en) | 2013-11-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203516075U Expired - Lifetime CN203311970U (en) | 2013-06-19 | 2013-06-19 | Iron core valve type electric reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203311970U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103280293A (en) * | 2013-06-19 | 2013-09-04 | 高海生 | Core valve type reactor |
-
2013
- 2013-06-19 CN CN2013203516075U patent/CN203311970U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103280293A (en) * | 2013-06-19 | 2013-09-04 | 高海生 | Core valve type reactor |
| CN103280293B (en) * | 2013-06-19 | 2015-08-19 | 高海生 | A kind of core valve type reactor |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20131127 Effective date of abandoning: 20150819 |
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| RGAV | Abandon patent right to avoid regrant |