CN201122483Y - Master-salve combined arc extinguishing reactor - Google Patents
Master-salve combined arc extinguishing reactor Download PDFInfo
- Publication number
- CN201122483Y CN201122483Y CNU2007201951230U CN200720195123U CN201122483Y CN 201122483 Y CN201122483 Y CN 201122483Y CN U2007201951230 U CNU2007201951230 U CN U2007201951230U CN 200720195123 U CN200720195123 U CN 200720195123U CN 201122483 Y CN201122483 Y CN 201122483Y
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- arc
- reactor
- suppression reactor
- suppression
- arc suppression
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Abstract
The utility model relates to a master-slave combined type arc suppression reactor, aiming at solving the problem that the operation mode of the prior reactor is not flexible. The master-slave combined type arc suppression reactor comprises a master arc suppression reactor and a plurality of slave arc suppression reactors connected with a vacuum contactor in series, wherein the master arc suppression reactor and the slave arc suppression reactors are connected in parallel. The inductive current quantity of the slave arc suppression reactors is increased or decreased progressively. Each reactor is provided with two windings connected in series, the iron core is a rectangular or circular iron core provided with two columns, an air gap magnetic circuit is adopted, and the air gap is distributed into a plurality of small gaps. The upper iron yoke and the lower iron yoke of each reactor adopt rectangular structures. One end of each slave arc suppression reactor is connected with the neutral point of the system through a disconnecting switch, and the other end of each slave arc suppression reactor is grounded. The master-slave combined type arc suppression reactor has the advantages that the operation mode is flexible, the master-slave combined type arc suppression reactor is far away from the resonance point during normal operation, the slave arc suppression reactors can be quickly started to achieve the full compensation point when the grounding of the single-phase electrical arc fails, to ensure the electrical arc to be reliably and quickly extinguished, an on-load tap switch is not required, the damping resistance is not required to be used, and the operation is secure and reliable.
Description
Technical field
The utility model relates to a kind of reactor, particularly relates to a kind of principal and subordinate's composite type arc-suppression reactor.
Background technology
China's automatic tuning arc depression coil has all been obtained major progress in theory and practice.Mainly show: propose and put into practice the presetting system tuning control method; Propose and put into practice with the mode tuning control method; Preset arc suppression coil is to form with original people's wage adjustment circle arc suppression coil transformation, promptly adopting has the number of turn of carrying by-pass cock change work winding, reaches the purpose of regulating inductance, and shunting switch is regulated quite frequent, damage shunting switch machinery useful life, very unfavorable to safety in operation.Adjustment can only be carried out under low-voltage or no-voltage situation, and the ratio of its adjustment of inductance scope bound is 2 times.Control system under the electrical network normal operation is being adjusted to the turn-adjusting arc suppression coil near the full compensation, so the neutral point displacement voltage maximum, therefore need add auxiliary device--and-pressure limiting resistance is not more than 15% of predetermined voltage to guarantee neutral point voltage.But the shortcoming of this mode needs earth resistance to withdraw from when being fault, easily pressure limiting resistance is burnt in the actual engineering.As shown in Figure 1,1 is system neutral among the figure, and 2 is isolating switch, and 3 is the turn-adjusting arc suppression coil, and 4 is loaded switch, and 5 is damping resistance.
The advantage of post-set arc suppression coils is shunting switch not to be regulated at ordinary times, but requires to realize full compensated regulation fast when fault, can not transfer the way of circle to realize this goal by machinery, requires to use electronic switch to carry out tuning control.But use electronic switch that 2 deficiencies are arranged: the one, the cost height is difficult to accept; The 2nd, operational reliability still can not be approved widely.These two not enough obstruction post-set arc suppression coils applies just.
Summary of the invention
The novel purpose of this reality is to overcome the above-mentioned defective of prior art, provide a kind of operational mode flexible, can adopt the operational mode of " with transferring ", during normal operation away from resonance point, when single-phase electric arc earth fault takes place, can start fast and reach full compensation point, electric arc is reliably extinguished fast from arc-suppression reactor.Do not need on-load shunting switch, and do not use damping resistance, work safety, reliable principal and subordinate's composite type arc-suppression reactor.
For achieving the above object, the utility model principal and subordinate composite type arc-suppression reactor comprise a main arc-suppression reactor parallel with one another and a plurality of series connection vacuum contactors from arc-suppression reactor.So design a plurality ofly can be arbitrarily made with multiple its load form from arc-suppression reactor.Can adopt the operational mode of " with transfer ", when normally moving away from resonance point; Also can adopt the operational mode of " preset ", master and slave arc-suppression reactor cooperates preset at 15% overcompensation degree place when normally moving.When single-phase electric arc earth fault takes place, can start fast and reach full compensation point, electric arc is reliably extinguished fast from arc-suppression reactor.Do not need on-load shunting switch, be combined into equally distributed reactor capacity, and do not use damping resistance, work safety, reliable by switching from arc-suppression reactor.Improvement when single phase ground fault takes place, is played the electrical equipment of extinguishing arc effect in the isolated neutral high-voltage fence.
As optimization, a plurality of inductive current capacity from arc-suppression reactor are increasing or decreasing successively.So design, the more kinds of compensation rates of one-tenth capable of being combined.
As optimization, each reactor has the winding of two series connection, and iron core is rectangle or the circular iron core with two posts, adopts air-gap magnetic circuit, and air gap is distributed into a plurality of little gaps.Air-gap magnetic circuit is adopted in so design, and air gap is distributed into a plurality of little gaps, can reduce the magnetic flux diffusion of air gap and the influence of heating.
As optimization, lower yoke all adopts rectangular configuration on each reactor.So design, more reasonable structure.
As optimization, winding is the copper cash of H class F insulation, and interlayer dielectic is the H level; Winding is handled through the VPI vacuum pressure impregnation.So design, insulation property are more feasible.
As optimization, iron core forms with the folded system of non-oriented silicon steel sheet.The design key of iron core is that choosing of magnetic flux density is less.So design, can obtain the inductance of the bigger adjusting degree of depth, unshakable in one's determination unsaturated.
As optimization, iron core is furnished with the screw rod of drawing and core through screw rod take-up device unshakable in one's determination.So design, the core structure bulk strength is better.
As optimization, each is from the neutral point of arc-suppression reactor one end by the isolating switch connected system, and the other end is ground connection all.So design is in service, from arc-suppression reactor direct independent assortment just.
As optimization, four inductive current Capacity Ratio from arc-suppression reactor are 8: 4: 2: 1.So design, 8421 compound modes can reach the The optimal compensation to electric power system.
The utility model master-slave mode arc-suppression reactor has been realized engaging with phase modulation in advance, the advantage of " preset " and " with transferring " is combined, when system normally moves, arc-suppression reactor preset is at 15% overcompensation degree place, when single-phase electric arc earth fault takes place, can start fast and reach full compensation point, electric arc is reliably extinguished fast from arc suppression coil.On load tap changer and damping resistance have been cancelled.The ratio of its adjustment of inductance scope bound is 15 times.When being used in electric power network neutral point resonance grounding, this kind reactor makes up with 8421 ratios, realizes the The optimal compensation to unbalanced earth fault capacitance current.Operational mode is flexible, can adopt the operational mode of " with transfer ", when normally moving away from resonance point; Also can adopt the operational mode of " preset ", master and slave arc suppression coil cooperates preset at 15% overcompensation degree place when normally moving.When single-phase electric arc earth fault takes place, can start fast and reach full compensation point, electric arc is reliably extinguished fast from arc suppression coil.
After adopting technique scheme, the utility model principal and subordinate composite type arc-suppression reactor compares with existing arc-suppression reactor that to have operational mode flexible, can adopt the operational mode of " with transferring ", during normal operation away from resonance point, when single-phase electric arc earth fault takes place, can start fast and reach full compensation point, electric arc is reliably extinguished fast from arc-suppression reactor.Do not need on-load shunting switch, and do not use damping resistance, work safety, reliable advantage.
Description of drawings
Fig. 1 is the circuit theory diagrams of existing arc-suppression reactor;
Fig. 2 is the circuit theory diagrams of the utility model principal and subordinate composite type arc-suppression reactor;
Among the figure: 1 is system neutral, and 2 is isolating switch, and L is main arc-suppression reactor, and K1, K2, K4, K8 are vacuum contactor, and L1, L2, L3, L4 are from arc-suppression reactor;
Fig. 3 is the circuit theory diagrams of coil in the utility model principal and subordinate composite type arc-suppression reactor;
Among the figure: 14 is winding.
Fig. 4 is the structural representation of the utility model principal and subordinate composite type arc-suppression reactor;
Among the figure: 6 is that iron core, 71 is that coil, 8 is that device body cushion block, 91 is that low-voltage lead insulator, 92 is the high-voltage connection insulator for drawing screw rod, 3;
Fig. 5 is the plan structure schematic diagram of Fig. 5;
Among the figure: 91 is that low-voltage lead insulator, 92 is that high-voltage connection insulator, 72 is core through screw rod unshakable in one's determination;
Fig. 6 is the structural representation of iron core part in the utility model principal and subordinate composite type arc-suppression reactor;
Among the figure: 10 is that iron yoke, 11 is that post iron, 12 is that insulation arm-tie, 13 is air gap unshakable in one's determination.
Fig. 7 is the sectional structure signal of iron core in the utility model principal and subordinate composite type arc-suppression reactor.
Tool is stopped execution mode
As shown in the figure, the utility model principal and subordinate composite type arc-suppression reactor comprises what main arc-suppression reactor L parallel with one another and four inductive current capacity increased progressively successively, connect respectively vacuum contactor K1, a K2, K4, K8 from arc-suppression reactor L1, L2, L4, L8.Each reactor all has the winding 14 of two series connection, and iron core 6 is the circular iron cores with two posts, adopts air-gap magnetic circuit, and air gap 13 is distributed into a plurality of little gaps.Last lower yoke 10 adopts rectangular configuration.Winding 14 is the copper cash of H class F insulation, and interlayer dielectic is the H level; Go out lead-in wire under enterprising by the phosphor-copper welding, and carry out the VPI vacuum pressure impregnation and handle.The folded system of iron core 6 usefulness non-oriented silicon steel sheets forms, and air gap 13 is inversely proportional to magnetic flux density.Each is from arc-suppression reactor L1, L2, L4, the L8 one end neutral point 1 by isolating switch 2 connected systems, other end ground connection.Capacity becomes master and slave relation by 8421 pro rate.Iron core 6 is furnished with screw rod of drawing 71 and core through screw rod unshakable in one's determination 72 take-up devices.K1, K2, K4, K8 are respectively 1A, 2A, 4A and 8A from the inductive current capacity of arc-suppression reactor.But 4 reactor combination in any, degree of regulation are 1A.
Claims (10)
1. principal and subordinate's composite type arc-suppression reactor, it is characterized in that comprising a main arc-suppression reactor parallel with one another and a plurality of series connection vacuum contactors from arc-suppression reactor.
2. according to the described principal and subordinate's composite type of claim 1 arc-suppression reactor, it is characterized in that a plurality of inductive current capacity from arc-suppression reactor increasing or decreasing successively.
3. according to the described principal and subordinate's composite type of claim 1 arc-suppression reactor, it is characterized in that each reactor has the winding of two series connection, iron core is rectangle or the circular iron core with two posts, adopts air-gap magnetic circuit, and air gap is distributed into a plurality of little gaps.
4. according to the described principal and subordinate's composite type of claim 1 arc-suppression reactor, it is characterized in that lower yoke all adopts rectangular configuration on each reactor.
5. according to the described principal and subordinate's composite type of claim 3 arc-suppression reactor, it is characterized in that winding is the copper cash of H class F insulation, interlayer dielectic is the H level; Winding is handled through the VPI vacuum pressure impregnation.
6. according to the described principal and subordinate's composite type of claim 3 arc-suppression reactor, it is characterized in that iron core forms with the folded system of non-oriented silicon steel sheet.
7. according to the described principal and subordinate's composite type of claim 3 arc-suppression reactor, it is characterized in that iron core is furnished with the screw rod of drawing and core through screw rod take-up device unshakable in one's determination.
8. according to claim 1,2,3,4,5,6 or 7 described principal and subordinate's composite type arc-suppression reactors, it is characterized in that each from the neutral point of arc-suppression reactor one end by the isolating switch connected system, the other end is ground connection all.
9. according to claim 1,2,3,4,5,6 or 7 described principal and subordinate's composite type arc-suppression reactors, it is characterized in that from arc-suppression reactor be four.
10. according to the described principal and subordinate's composite type of claim 9 arc-suppression reactor, it is characterized in that from the inductive current Capacity Ratio of arc-suppression reactor be 8: 4: 2: 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201951230U CN201122483Y (en) | 2007-11-07 | 2007-11-07 | Master-salve combined arc extinguishing reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201951230U CN201122483Y (en) | 2007-11-07 | 2007-11-07 | Master-salve combined arc extinguishing reactor |
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| Publication Number | Publication Date |
|---|---|
| CN201122483Y true CN201122483Y (en) | 2008-09-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201951230U Expired - Fee Related CN201122483Y (en) | 2007-11-07 | 2007-11-07 | Master-salve combined arc extinguishing reactor |
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| CN (1) | CN201122483Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020161387A1 (en) * | 2019-02-04 | 2020-08-13 | Ensto Oy | Apparatus and method for operating arc suppression coil |
| CN111864715A (en) * | 2020-07-21 | 2020-10-30 | 梁志瑞 | Normalization module combined arc suppression coil |
-
2007
- 2007-11-07 CN CNU2007201951230U patent/CN201122483Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020161387A1 (en) * | 2019-02-04 | 2020-08-13 | Ensto Oy | Apparatus and method for operating arc suppression coil |
| CN111864715A (en) * | 2020-07-21 | 2020-10-30 | 梁志瑞 | Normalization module combined arc suppression coil |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080924 Termination date: 20121107 |