CN107393666A - A kind of Split high pressure series compensation damps MOV - Google Patents
A kind of Split high pressure series compensation damps MOV Download PDFInfo
- Publication number
- CN107393666A CN107393666A CN201710413555.2A CN201710413555A CN107393666A CN 107393666 A CN107393666 A CN 107393666A CN 201710413555 A CN201710413555 A CN 201710413555A CN 107393666 A CN107393666 A CN 107393666A
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- China
- Prior art keywords
- resistor disc
- mov
- sheet devices
- resistance sheet
- high pressure
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
- H01C7/10—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material voltage responsive, i.e. varistors
- H01C7/12—Overvoltage protection resistors
- H01C7/126—Means for protecting against excessive pressure or for disconnecting in case of failure
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C1/00—Details
- H01C1/02—Housing; Enclosing; Embedding; Filling the housing or enclosure
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Details Of Resistors (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
The invention discloses a kind of Split high pressure series compensation to damp MOV, flow including resistance sheet devices and connecting plate, one end of the resistance sheet devices is fixedly connected with reactor, the other end of the resistance sheet devices is fixedly connected with stream connecting plate, the stream connecting plate includes plectane and installing arm, the plectane and installing arm one excision forming, and perforate is provided with the plectane, each installing arm is connected with resistance sheet devices, wherein there is two installing arms to connect multiple resistance sheet devices.Split-type structural in reactor parallel connection linear resistance+damping MOV is not only realized using patent of the present invention, it can solve the equal flow problem of resistor disc again simultaneously, resistor disc electrical contact is good, mechanism is compact simultaneously, without air cavity, good seal performance and resistor disc it is heated when can well discharge stress, improve the through-current capability of resistor disc.
Description
Technical field
The invention belongs to power system arrester technical field, more particularly to a kind of Split high pressure series compensation to damp
MOV。
Background technology
With the fast development of China's power industry, China power network has been enter into bulk power grid, large-sized unit, D.C. high voltage transmission
New stage, using remote Large Copacity high voltage power transmission technology as China's electric power industry development there is an urgent need at a distance
The electric energy transmission of Large Copacity makes the stability problem of system be become increasingly conspicuous what China became.With raising power system conveying capacity
It certainly will be widely used with the Series Compensation for improving stability of power system in high voltage field.Metal oxide limits
Depressor（MOV）It is the important protection equipment in series compensation device, except main MOV, also has one kind in the damping unit that string mends equipment
MOV is damped, string benefit is the visual plant of series compensation device with damping unit, at gap and by-pass switch action, limit
The amplitude and frequency of capacitor set discharge electric current processed, reduce infringement of the discharge current to capacitor, by-pass switch and portable protective gaps,
And capacitor set discharge electric current is quickly decayed, recover voltage and latent power supply arc to reduce residual voltage to line-breaker
Influence.
The fundamental type of damping unit has only reactor, reactor parallel connection linear resistance, reactor in parallel linear at present
Resistance+gap, reactor parallel connection linear resistance+damping MOV, wherein the discharge current of rear three types is better than the first type,
Resistance loss is larger during second of type longtime running, requires high to the thermal capacity of resistance, the third and the 4th type are pair
The improvement of second of type, damping circuit loss is relatively low, but for having stable behavior and the angle maintained easily, the 4th kind of reactance
Device parallel connection linear resistance+damping MOV type is advantageously.
As the important component of damping unit, linear damping resistance and damping MOV mounting structure are divided into integral type
With split type two kinds.Integral type is in an insulator, one damping of composition by assembling after linear damping resistance and damping MOV series connection
Resistance unit, multiple damping resistance units are in parallel.The advantages of this scheme is closed, not affected by environment, and reliability is big
Big to improve, linear resistance can play current balance function in action to damping MOV, and shortcoming is that floor space is big, once damping MOV
Then whole damping resistance unit need to be changed all for damage, be not easy to safeguard.And another assembling structure is split type, that is, damp
MOV and linear resistance are arranged apart at the top of reactor and internal, in parallel with reactor after electrically being connected.This structure
The advantages of be that floor space is few, each element exposed to outer easy access with safeguard.When part damages, it is conveniently replaceable, lacks
Point is that the stream requirement to resistor disc is higher.Therefore a kind of dress how is designed in reactor parallel connection linear resistance+damping MOV
Distribution structure is split-type structural, while can solve a tackling key problem class of the equal flow problem of resistor disc as prior art again
Topic.
The content of the invention
To solve drawbacks described above, the purpose of the present invention is to find a kind of reactor parallel connection linear resistance+damping MOV, and is filled
Distribution structure damps MOV for split type high-voltage serial connection compensation.
To reach above-mentioned purpose, the technical solution adopted by the present invention is：A kind of Split high pressure series compensation damps MOV,
Connecting plate is flowed including resistance sheet devices and, one end of the resistance sheet devices is fixedly connected with reactor, and the resistance is on chip
The other end put is fixedly connected with stream connecting plate, it is characterised in that：The stream connecting plate includes plectane and installing arm, described
Plectane and installing arm one excision forming, perforate is provided with the plectane, and the installing arm is laid out in emitting shape；The resistor disc
Device includes insulating cylinder, resistor disc, pad and two-component embedding silicon rubber, and the resistor disc is wrapped up by impermeable adhesive tape, described
Resistor disc is staggeredly superimposed with pad, and the resistor disc and pad are arranged in insulating cylinder, and the upper and lower part of the resistor disc is equal
Electrode is provided with, the resistor disc is divided into low-pressure end and high-pressure side, and wherein low-pressure end is located at resistor disc bottom, and high-pressure side is located at electricity
Piece top is hindered, the resistor disc high pressure termination electrode is provided with spring attachment, and hole for injecting glue is provided with the electrode, described double
Component embedding silicon rubber is injected in the insulating cylinder by hole for injecting glue；Composite sheath is provided with outside the insulating cylinder, it is described multiple
Closing overcoat has the shirt rim of multiple insulation, and the composite sheath both sides are provided with two end caps up and down, wherein set on bottom end cover
There is binding post, bolt is provided with upper end cover.
Preferably, between the resistance sheet devices and reactor, and resistance sheet devices and flow connecting plate between be all
It is bolted to connection.
Preferably, the resistance sheet devices amount to 8, and resistance sheet devices are connected with each installing arm.Adopt
With 8 resistance sheet devices allocation plans, monolithic energy absorbing demands when nonuniformity coefficient reaches 54% can be met.
Preferably, the resistor disc is major diameter high energy resistor disc.Using major diameter high energy resistor disc, product is improved
Explosion-proof performance, sealing property, heat dispersion, reduce diverting coefficient.
Preferably, the spring attachment includes spring, conductive strips, two-component embedding silicon rubber.
Preferably, the composite sheath composition material is silicone rubber.
The present invention obtains plectane and installing arm one excision forming in design, using flowing in connecting plate, ensures the company
Fishplate bar does not have to welding, avoids the process complexity that welded bands are come yet, without weld seam, the resistance for making each MOV units connect
It is equal, make it when MOV is acted, shunting is uniform；Connecting plate is flowed simultaneously without using complete plectane, and uses spoke-like distribution
Installing arm and plectane composition stream connecting plate, be to reduce weight, increase air circulation, beneficial to MOV radiating.
Meanwhile using technical scheme, it is in due to there is impermeable adhesive tape to protect outside resistor disc post, during injecting glue
The two-component casting glue of liquid can not be immersed between resistor disc and the gap of pad, ensure that electrical contact is good；Due to impermeable
Adhesive tape does not have curing performance, and when resistor disc is impacted and adstante febre by big energy currents, it will not be different because of the coefficient of expansion, by
Resistor disc is caused to be broken to the mechanical force of cured layer.Meanwhile during resistor disc expanded by heating, its deflection is by spring attachment
Absorb, while ensureing to make electrical contact with pressure, reduce the thermal stress of resistor disc；Due to internal injecting glue, it ensure that product without gas
Chamber, explosion-proof performance is superior, and moisture resistant seal is more notable, the technique for finally having drawn low voltage surge arrester to the integral die of product
Advantage, dual-seal is carried out equivalent to product.
Compared with prior art, advantage of the present invention is shown：（1）Plectane and installing arm one are obtained in connecting plate with flowing
Excision forming, ensure that the connecting plate does not have to welding, also avoid the process complexity that welded bands are come, without weld seam, make each
The resistance of MOV units series connection is equal, makes it when MOV is acted, and shunting is uniform；（2）Protected outside resistor disc with impermeable adhesive tape,
Prevent casting glue strike-through；（3）The technique that epoxy treated tape solidification core group is substituted using impermeable adhesive tape, reduce the heat of resistor disc
Stress；（4）Interiors of products vacuum impregnating two component, ensure that product without air cavity；（5）The integral die of product.
Split-type structural in reactor parallel connection linear resistance+damping MOV is not only realized using patent of the present invention, while again
The equal flow problem of resistor disc is can solve, while resistor disc electrical contact is good, mechanism is compact, without air cavity, good seal performance
And resistor disc it is heated when can well discharge stress, improve the through-current capability of resistor disc.
Brief description of the drawings
Below according to drawings and Examples, the structure and features of the present invention is further described.
Fig. 1 is the structural representation of the present invention.
Fig. 2 is Fig. 1 top view.
Fig. 3 is resistor disc apparatus structure schematic diagram.
Fig. 4 is split type reactor parallel connection linear resistance+damping MOV circuit diagrams.
In accompanying drawing 1, Fig. 2, in Fig. 3,1. resistance sheet devices, 2. flow connecting plate, 3. reactors, 4. plectanes, 5. peaces
Fill arm, 6. binding posts, 7. end caps, 8. electrodes, 9. composite sheaths, 10. resistor discs, 11. pads, 12. antiseepage seep throughs
Band, 13. springs, 14. conductive strips, 15. insulating cylinders, 16. two-component embedding silicon rubber, 17. bolts.
Embodiment
It is a kind of embodiment of the present invention referring to accompanying drawing 1, Fig. 2, Fig. 3.
A kind of Split high pressure series compensation damps MOV, including resistance sheet devices 1 and equal stream connecting plates 2, the resistor disc
One end of device 1 is fixedly connected with reactor 3, and the other end of the resistance sheet devices 1 is fixedly connected with stream connecting plate 2, institute
Stating stream connecting plate 2 includes plectane 4 and installing arm 5,5 integral excision forming of the plectane 4 and installing arm, is opened on the plectane 4
There is perforate, the installing arm 5 is laid out in emitting shape, and each installing arm 5 is connected with resistance sheet devices 1；The resistor disc
Device 1 includes insulating cylinder 15, resistor disc 10, pad 11 and two-component embedding silicon rubber 16, and the resistor disc 10 is by antiseepage seep through
Band 12 is wrapped up, and the resistor disc 10 is staggeredly superimposed with pad 11, and the resistor disc 10 and pad 11 are arranged in insulating cylinder 15, institute
The upper and lower part for stating resistor disc 10 is provided with electrode 8, and the resistor disc 10 divides for low-pressure end and high-pressure side, wherein low-pressure end
Located at the bottom of resistor disc 10, high-pressure side is located at the top of resistor disc 10, and the high pressure termination electrode 8 of resistor disc 10 is provided with spring compression
Device, hole for injecting glue is provided with the electrode 8, the two-component embedding silicon rubber 16 injects the insulating cylinder 15 by hole for injecting glue
It is interior；Composite sheath 9 is provided with outside the insulating cylinder 15, the composite sheath 9 has the shirt rim of multiple insulation, described compound outer
Cover 9 both sides and be provided with two end caps 7 up and down, binding post 6 is wherein provided with bottom end cover 7, bolt is provided with upper end cover 7
17。
Preferably, between the resistance sheet devices 1 and reactor 3, and resistance sheet devices 1 and flow connecting plate 2 between
All it is bolted to connection.
Preferably, the resistance sheet devices 1 amount to 8, and resistance sheet devices 1 are connected with each installing arm 5.
Using 8 allocation plans of resistance sheet devices 1, monolithic energy absorbing demands when nonuniformity coefficient reaches 54% can be met.
Preferably, the resistor disc 10 is major diameter high energy resistor disc.Using major diameter high energy resistor disc, product is improved
Explosion-proof performance, sealing property, heat dispersion, reduce diverting coefficient.
Preferably, the spring attachment includes spring 13, conductive strips 14, two-component embedding silicon rubber 16.
Preferably, the composition material of composite sheath 9 is silicone rubber.
In use, it is illustrated in figure 4 split type reactor parallel connection linear resistance+damping MOV circuit diagrams, wherein F3：Damping
MOV；R3：Damping resistance；L3：Damping reactor；The damping MOV connects with the damping resistance, the damping MOV and institute
State damping reactor parallel connection.The damping MOV its not to absorb based on energy, an and similar switch.
The present invention obtains plectane and installing arm one excision forming in design, using flowing in connecting plate, ensures the company
Fishplate bar does not have to welding, avoids the process complexity that welded bands are come yet, without weld seam, the resistance for making each MOV units connect
It is equal, make it when MOV is acted, shunting is uniform；Connecting plate is flowed simultaneously without using complete plectane, and uses spoke-like distribution
Installing arm and plectane composition stream connecting plate, be to reduce weight, increase air circulation, beneficial to MOV radiating.
Compared with prior art, point in reactor parallel connection linear resistance+damping MOV is not only realized using patent of the present invention
Body formula structure, while the equal flow problem of resistor disc is can solve again, while resistor disc electrical contact is good, mechanism is compact, nothing
Air cavity, good seal performance and resistor disc can well discharge stress when heated, improve the through-current capability of resistor disc.
Described above is only presently preferred embodiments of the present invention, and above-mentioned specific embodiment is not limitation of the present invention,
Retouching, modification or the equivalent substitution that all one of ordinary skill in the art are made as described above, belong to the guarantor of the present invention
Protect scope.
Claims (6)
1. a kind of Split high pressure series compensation damps MOV, including resistance sheet devices and connecting plate is flowed, the resistance sheet devices
One end be fixedly connected with reactor, the other end of the resistance sheet devices with stream connecting plate be fixedly connected, it is characterised in that：
The stream connecting plate includes plectane and installing arm, the plectane and installing arm one excision forming, is provided with out on the plectane
Hole, the installing arm are laid out in emitting shape；The resistance sheet devices include insulating cylinder, resistor disc, pad and two-component embedding silicon
Rubber, the resistor disc are wrapped up by impermeable adhesive tape, and the resistor disc is staggeredly superimposed with pad, and the resistor disc and pad are set
In insulating cylinder, the upper and lower part of the resistor disc is provided with electrode, and the resistor disc is divided into low-pressure end and high-pressure side, its
Mesolow end is located at resistor disc bottom, and high-pressure side is located at resistor disc top, and the resistor disc high pressure termination electrode is provided with spring pressure
Tight device, hole for injecting glue is provided with the electrode, the two-component embedding silicon rubber is injected in the insulating cylinder by hole for injecting glue；
Composite sheath is provided with outside the insulating cylinder, the composite sheath has the shirt rim of multiple insulation, the composite sheath both sides
Two end caps up and down are provided with, binding post is wherein provided with bottom end cover, bolt is provided with upper end cover.
2. Split high pressure series compensation according to claim 1 damps MOV, it is characterised in that：The resistance sheet devices
Between reactor, and resistance sheet devices and flow connecting plate between be all bolted to connection.
3. Split high pressure series compensation according to claim 1 damps MOV, it is characterised in that：The resistance sheet devices
The metal oxide resistance included is major diameter high energy resistor disc.
4. Split high pressure series compensation according to claim 1 damps MOV, it is characterised in that：The resistance sheet devices
It is 8 altogether, described to be each connected with resistance sheet devices in installing arm.
5. Split high pressure series compensation according to claim 1 damps MOV, it is characterised in that：The spring compression dress
Put including spring, conductive strips, two-component embedding silicon rubber.
6. Split high pressure series compensation according to claim 1 damps MOV, it is characterised in that：The composite sheath group
It is silicone rubber into material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710413555.2A CN107393666B (en) | 2017-06-05 | 2017-06-05 | A kind of Split high pressure series compensation damping MOV |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710413555.2A CN107393666B (en) | 2017-06-05 | 2017-06-05 | A kind of Split high pressure series compensation damping MOV |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107393666A true CN107393666A (en) | 2017-11-24 |
| CN107393666B CN107393666B (en) | 2019-03-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710413555.2A Active CN107393666B (en) | 2017-06-05 | 2017-06-05 | A kind of Split high pressure series compensation damping MOV |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109461552A (en) * | 2018-12-20 | 2019-03-12 | 无锡市联达电器有限公司 | Direct current equalizing resistance device |
| CN113916750A (en) * | 2021-11-23 | 2022-01-11 | 南通市建筑科学研究院有限公司 | Multifunctional impermeability tester and concrete comprehensive impermeability test system comprising same |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6388553B1 (en) * | 2000-03-02 | 2002-05-14 | Eaton Corproation | Conductive polymer current-limiting fuse |
| CN201364788Y (en) * | 2009-03-13 | 2009-12-16 | 抚顺电瓷制造有限公司 | Resistor for series compensation condenser group |
| CN104158183A (en) * | 2014-08-18 | 2014-11-19 | 国家电网公司 | Series capacitor compensation device using flat layer parallel damping reactors |
| CN105429123A (en) * | 2015-12-31 | 2016-03-23 | 中国西电电气股份有限公司 | Overvoltage limiter |
-
2017
- 2017-06-05 CN CN201710413555.2A patent/CN107393666B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6388553B1 (en) * | 2000-03-02 | 2002-05-14 | Eaton Corproation | Conductive polymer current-limiting fuse |
| CN201364788Y (en) * | 2009-03-13 | 2009-12-16 | 抚顺电瓷制造有限公司 | Resistor for series compensation condenser group |
| CN104158183A (en) * | 2014-08-18 | 2014-11-19 | 国家电网公司 | Series capacitor compensation device using flat layer parallel damping reactors |
| CN105429123A (en) * | 2015-12-31 | 2016-03-23 | 中国西电电气股份有限公司 | Overvoltage limiter |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109461552A (en) * | 2018-12-20 | 2019-03-12 | 无锡市联达电器有限公司 | Direct current equalizing resistance device |
| CN113916750A (en) * | 2021-11-23 | 2022-01-11 | 南通市建筑科学研究院有限公司 | Multifunctional impermeability tester and concrete comprehensive impermeability test system comprising same |
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| Publication number | Publication date |
|---|---|
| CN107393666B (en) | 2019-03-29 |
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Address after: 473000 Weishi Road, Nanyang Eco-industrial Park, Henan Province Patentee after: Nanyang Zhongxiang Power Electronics Co., Ltd. Address before: 473000 Weishi Road, Nanyang Eco-industrial Park, Henan Province Patentee before: Nanyang Zhongxiang Power Electronics Co., Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200320 Address after: 473000 Weishi Road, Nanyang Eco-industrial Park, Henan Province Patentee after: NANYANG ZHONGWEI ELECTRIC Co.,Ltd. Address before: 473000 Weishi Road, Nanyang Eco-industrial Park, Henan Province Patentee before: Nanyang Zhongxiang Power Electronics Co., Ltd. |
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Effective date of registration: 20200819 Address after: 473000 Weishi Road, Nanyang Eco-industrial Park, Henan Province Co-patentee after: NANYANG ZHONGWEI ELECTRIC Co.,Ltd. Patentee after: Nanyang Zhongxiang Power Electronics Co.,Ltd. Address before: 473000 Weishi Road, Nanyang Eco-industrial Park, Henan Province Patentee before: NANYANG ZHONGWEI ELECTRIC Co.,Ltd. |