CN207765334U - A kind of ultra-high voltage AC transmission antidetonation parallel capacitor device - Google Patents
A kind of ultra-high voltage AC transmission antidetonation parallel capacitor device Download PDFInfo
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- CN207765334U CN207765334U CN201820052958.9U CN201820052958U CN207765334U CN 207765334 U CN207765334 U CN 207765334U CN 201820052958 U CN201820052958 U CN 201820052958U CN 207765334 U CN207765334 U CN 207765334U
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Abstract
The utility model is related to a kind of ultra-high voltage AC transmission antidetonation parallel capacitor devices, including the Capacitor stack that multiple structures are consistent, and connect；Capacitor stack is all connected with current transformer；High pressure end of incoming cables is both provided at the top of Capacitor stack；Capacitor stack includes multiple insulated platforms and pedestal column insulator, and multiple insulated platforms stack gradually, and two neighboring insulated platform is connected by interlayer support insulator；The insulated platform of bottom is connect with the top of pedestal column insulator；Pedestal column insulator is fixedly connected with footing steel plate；Footing steel plate is fixedly connected with earth's surface；Capacitor group is both provided in insulated platform, the bottom of capacitor group is connect by silicane rubber plate with insulated platform；The capacitor group that the inside of fixed angle steel insulated platform is provided between capacitor group and insulated platform is connect with current transformer.Compared with the prior art, the utility model characteristics of compact layout, floor space is small, at low cost, and shock resistance is strong；Meet the shockproof requirements of 0.5g horizontal accelerations.
Description
Technical field
The utility model is related to technical field of HVDC transmission, more particularly to a kind of ultra-high voltage AC transmission antidetonation is in parallel
Capacitor device.
Background technology
With the fast development of 1000kV ultra-high voltage AC transmission technologies, in order to provide reactive power compensation, enhancing system
Stability, reduce via net loss and improve quality of voltage, need use a large amount of high-voltage parallel capacitor device.With country
Tightening to land policy, 1000kV ultra-high voltage AC transmissions engineering construction warp-wise compact and integrated direction development, with
Just floor space is reduced to greatest extent.110kV parallel capacitor devices are mainly electric as 1000kV ultra-high voltage AC transmission engineerings
The rated capacity of power equipment, 1000kV ultra-high voltage AC transmissions engineering parallel capacitor device is usually 210Mvar-
" a kind of 1000kV is extra-high for the utility model patent of 240Mvar, nominal voltage 110kV, Patent No. ZL201621208057.1
Press ac transmission engineering parallel capacitor device ", using the string of every phase 10 12 and a pylon being electrically connected and two electric currents
The structure of mutual inductor, makes 110kV parallel capacitor devices reduce floor space 40%, and capacitor pylon can reach 0.3g levels
Acceleration shockproof requirements.
China is located at the place that several plates such as Pacific Rim plate, eurasian plate, Indian Ocean plate connect, at least
495 Earthquake Fault Zones, Seismicity frequency is high, intensity is big, focus is shallow, and distribution is wide, is a serious country of earthquake calamity.It is extra-high
The design of pressure AC and DC power transmission engineering capacitor device pylon must take into consideration anti-seismic problem, according to national standard GB50260《Electric power is set
Apply earthquake resistant design code》Regulation：Seismic fortification intensity improves 1 degree and sets up defences.The horizontal earthquake in the geographical location residing for the substation
When acceleration is 0.3g, 110kV parallel capacitor device highests need to meet 0.5g horizontal acceleration shockproof requirements.
Although it is reliable to improve capacitor internal error protection per the Double-bridge difference protection of two current transformer compositions of phase
Property, but the shortcomings of cost is higher, first and second wiring is complicated, repair and maintenance trouble is faced, meeting capacitor internal error protection
Under the premise of reliability, it is necessary to develop single Bridge differential current protection and meet the shunt capacitor of 0.5g horizontal acceleration shockproof requirements
Device.
Utility model content
The purpose of this utility model is to provide a kind of ultra-high voltage AC transmission antidetonation parallel capacitor device, to be solved
Technical problem is：It can although capacitor internal error protection can be improved per the Double-bridge difference protection of two current transformer compositions of phase
By property, but the shortcomings of cost is higher, first and second wiring is complicated, repair and maintenance trouble is faced, is protected meeting capacitor internal failure
Under the premise of protecting reliability；And it cannot be satisfied 0.5g horizontal acceleration shockproof requirements.
The technical solution that the utility model solves above-mentioned technical problem is as follows：A kind of ultra-high voltage AC transmission antidetonation electricity in parallel
Case, including Capacitor stack that multiple structures are consistent, multiple Capacitor stacks are arranged side by side successively, and are connected successively by busbar
It connects；Each described Capacitor stack is all connected with a current transformer；Be both provided at the top of each Capacitor stack high pressure into
Line end；
The Capacitor stack includes insulated platform and pedestal column insulator, the insulated platform be provided with it is multiple, it is multiple
The insulated platform from top to bottom stacks gradually, and two neighboring insulated platform is fixedly connected by interlayer support insulator；It is described
Pedestal column insulator is placed in the lower section of multiple insulated platforms, and the insulated platform in bottom passes through in multiple insulated platforms
It is fixedly connected at the top of shaped steel bearing and the pedestal column insulator；The lower end of the pedestal column insulator is fixedly connected with
Footing steel plate；The footing steel plate is fixedly connected by foundation bolt with earth's surface；
Be both provided with capacitor group in each described insulated platform, the bottom of the capacitor group by silicane rubber plate with
The insulated platform connection；Fixed angle steel, capacitor group bottom are additionally provided between the capacitor group and insulated platform
Edge be wrapped in fixed angle steel, the fixed angle steel is fixedly connected with insulated platform；Middle part is in multiple insulated platforms
An insulated platform, internal capacitor group connect by tin plating copper stranded conductor with current transformer.
Further, an insulated platform at middle part is in multiple insulated platforms, one side is fixedly connected with busbar pillar
Insulator, corresponding tin plating copper stranded conductor are connect through bus bar column insulator with current transformer.
Further, multiple insulated platforms are in frame structure, four sides of each insulated platform vertical direction
It has been fixedly connected with fixed plate.
Further, the insulated platform includes two structural steel frames stacked on top of one another, and two structural steel frames, which are fixed, to be connected
It connects；The structural steel frame in lower end is fixedly connected with interlayer support insulator or shaped steel bearing in two structural steel frames.
Further, it is both provided with capacitor group in each described structural steel frame, the bottom of each capacitor group is equal
It is connected by the bottom of the corresponding structural steel frame of silicane rubber plate；The fixation angle steel and shaped steel at the edge of capacitor group bottom
Frame is fixedly connected.
Further, include six capacitor units in each capacitor group, capacitance in each described insulated platform
The connection type of device unit goes here and there 12 simultaneously for 2, and is multiple-branching construction；The connection type of each Capacitor stack inner capacitor unit
Simultaneously for 10 strings 12.
Further, further include fence, the fence is around multiple Capacitor stacks and its current transformer of connection.
The utility model has the beneficial effects that：Capacitor device characteristics of compact layout, per mutually only with a current transformer use
In capacitor internal error protection, floor space is small, at low cost, can reduce extra-high-voltage alternating current engineering construction cost, economy effect
Benefit is good；Compared with every phase is using double tower arrangement, it can reduce and cover an area of 40%；Shock resistance is strong.Capacitor stack can expire
The shockproof requirements of sufficient 0.5g horizontal accelerations；Unbalance protection reliability is high, and second protection is not easy to malfunction；Capacitor device is examined
It is big to repair space, structural steel frame is simple in structure, and capacitor unit is easy to install, overhauls and easy to maintain.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of ultra-high voltage AC transmission antidetonation parallel capacitor device of the utility model；
Fig. 2 is the left hand view of Fig. 1；
Fig. 3 is the vertical view of Fig. 1；
Fig. 4 is the vertical view of the utility model structural steel frame；
Fig. 5 is the front view of the utility model fixed plate；
Fig. 6 is the front view that the utility model fixes angle steel.
In attached drawing, parts list represented by the reference numerals are as follows：
1, Capacitor stack, 110, insulated platform, 111, structural steel frame, 120, pedestal column insulator, 130, interlayer pillar
Insulator, 140, shaped steel bearing, 150, footing steel plate, 160, foundation bolt, 170, capacitor group, 180, silicane rubber plate, 190,
Fixed angle steel；
2, busbar, 3, current transformer, 4, bus bar column insulator, 5, fixed plate, 6, fence.
Specific implementation mode
The principles of the present invention and feature are described below in conjunction with attached drawing, example is served only for explaining this practicality
It is novel, it is not intended to limit the scope of the utility model.
As shown in Figures 1 to 6, a kind of ultra-high voltage AC transmission antidetonation parallel capacitor device, including multiple structures are consistent
Capacitor stack 1, multiple Capacitor stacks 1 side by side, and are sequentially connected successively by busbar 2, constitute single bridge difference mode of connection；
Each described Capacitor stack 1 is all connected with a current transformer 3；The top of each Capacitor stack 1 be both provided with high pressure into
Line end；
The Capacitor stack 1 includes insulated platform 110 and pedestal column insulator 120, and the insulated platform 110 is provided with
Multiple, multiple insulated platforms 110 from top to bottom stack gradually, and two neighboring insulated platform 110 passes through interlayer post insulator
Son 130 is fixedly connected；The pedestal column insulator 120 is placed in the lower section of multiple insulated platforms 110, multiple insulated platforms
The insulated platform 110 in bottom is fixed by the top of shaped steel bearing 140 and the pedestal column insulator 120 and is connected in 110
It connects；The lower end of the pedestal column insulator 120 is fixedly connected with footing steel plate 150；The footing steel plate 150 passes through lower margin spiral shell
Bolt 160 is fixedly connected with earth's surface；
Capacitor group 170 is both provided in each described insulated platform 110, the bottom of the capacitor group 170 passes through
Silicane rubber plate 180 is connect with the insulated platform 110；It is additionally provided with fixation between the capacitor group 170 and insulated platform 110
The edge of angle steel 190,170 bottom of capacitor group is wrapped in fixed angle steel 190, and the fixed angle steel 190 is flat with insulation
Platform 110 is fixedly connected；An insulated platform 110 at middle part, internal capacitor group 170 are in multiple insulated platforms 110
It is connect with current transformer 3 by tin plating copper stranded conductor.180 energy buffer condenser group 170 of silicane rubber plate, promotes shock resistance；Gu
Determine the tail portion of 190 fixed capacity device group 170 of angle steel, enhances anti-seismic performance.
In above-described embodiment, an insulated platform 110 at middle part is in multiple insulated platforms 110, one side, which is fixed, to be connected
It is connected to bus bar column insulator 4, corresponding tin plating copper stranded conductor is connect through bus bar column insulator 4 with current transformer 3.
In above-described embodiment, multiple insulated platforms 110 are in frame structure, the vertical side of each insulated platform 110
To four sides be fixedly connected with fixed plate 5.
In above-described embodiment, the insulated platform 110 includes two structural steel frames 111 stacked on top of one another, two types
Steel frame 111 is fixedly connected；Structural steel frame 111 in two structural steel frames 111 in lower end and interlayer support insulator
130 or shaped steel bearing 140 be fixedly connected.
In above-described embodiment, it is both provided with capacitor group 170 in each described structural steel frame 111, each capacitance
The bottom of device group 170 is connected by the bottom of 180 corresponding structural steel frame 111 of silicane rubber plate；170 bottom of capacitor group
The fixation angle steel 190 at the edge in portion is fixedly connected with structural steel frame 111.
Include six capacitor units in above-described embodiment, in each capacitor group 170, each described insulation is flat
The connection type of 110 inner capacitor unit of platform goes here and there 12 simultaneously for 2, and is multiple-branching construction；Each 1 inner capacitor list of Capacitor stack
The connection type of member goes here and there 12 simultaneously for 10；Multiple-branching construction injects the blasting energy of single capacitor group 170 when can reduce short trouble
Amount.
Further include fence 6, the fence 6 is around multiple Capacitor stacks 1 and its Current Mutual Inductance of connection in above-described embodiment
Device 3.
Present apparatus characteristics of compact layout, each Capacitor stack 1 are protected only with a current transformer 3 for capacitor internal failure
Shield, floor space is small, at low cost, can reduce extra-high-voltage alternating current engineering construction cost, good in economic efficiency；Double tower is used with every phase
Arrangement is compared, and can be reduced and be covered an area of 40%；Shock resistance is strong.Capacitor stack can meet the anti-of 0.5g horizontal accelerations
Shake requires；Unbalance protection reliability is high, and second protection is not easy to malfunction；Present apparatus space for maintenance is big, 111 structure of structural steel frame
Simply, capacitor unit is easy to install, overhauls and easy to maintain.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all in this practicality
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (7)
1. a kind of ultra-high voltage AC transmission antidetonation parallel capacitor device, it is characterised in that：Including the consistent capacitance of multiple structures
Device tower (1), multiple Capacitor stacks (1) are arranged side by side successively, and are sequentially connected by busbar (2)；Each described Capacitor stack
(1) it is all connected with a current transformer (3)；It is both provided with high pressure end of incoming cables at the top of each Capacitor stack (1)；
The Capacitor stack (1) includes insulated platform (110) and pedestal column insulator (120), and the insulated platform (110) sets
It is equipped with multiple, multiple insulated platforms (110) from top to bottom stack gradually, and two neighboring insulated platform (110) passes through interlayer
Support insulator (130) is fixedly connected；The pedestal column insulator (120) is placed in the lower section of multiple insulated platforms (110), more
The insulated platform (110) in bottom is exhausted by shaped steel bearing (140) and the pedestal column in a insulated platform (110)
Edge is fixedly connected at the top of (120)；The lower end of the pedestal column insulator (120) is fixedly connected with footing steel plate (150)；
The footing steel plate (150) is fixedly connected by foundation bolt (160) with earth's surface；
Capacitor group (170) is both provided in each described insulated platform (110), the bottom of the capacitor group (170) is logical
Silicane rubber plate (180) is crossed to connect with the insulated platform (110)；Between the capacitor group (170) and insulated platform (110) also
It is provided with fixed angle steel (190), the edge of capacitor group (170) bottom is wrapped in fixed angle steel (190), the fixation
Angle steel (190) is fixedly connected with insulated platform (110)；An insulated platform at middle part is in multiple insulated platforms (110)
(110), internal capacitor group (170) is connect by tin plating copper stranded conductor with current transformer (3).
2. a kind of ultra-high voltage AC transmission antidetonation parallel capacitor device according to claim 1, it is characterised in that：It is multiple
An insulated platform (110) at middle part is in insulated platform (110), one side is fixedly connected with bus bar column insulator (4),
Corresponding tin plating copper stranded conductor is connect through bus bar column insulator (4) with current transformer (3).
3. a kind of ultra-high voltage AC transmission antidetonation parallel capacitor device according to claim 1, it is characterised in that：It is multiple
The insulated platform (110) is in frame structure, and four sides of each insulated platform (110) vertical direction are fixedly connected with
There is fixed plate (5).
4. a kind of ultra-high voltage AC transmission antidetonation parallel capacitor device according to claim 1, it is characterised in that：It is described
Insulated platform (110) includes two structural steel frames (111) stacked on top of one another, and two structural steel frames (111) are fixedly connected；Two
Structural steel frame (111) in a structural steel frame (111) in lower end and interlayer support insulator (130) or shaped steel bearing
(140) it is fixedly connected.
5. a kind of ultra-high voltage AC transmission antidetonation parallel capacitor device according to claim 4, it is characterised in that：It is each
It is both provided with capacitor group (170) in a structural steel frame (111), the bottom of each capacitor group (170) passes through
The bottom of silicane rubber plate (180) corresponding structural steel frame (111) connects；The edge of capacitor group (170) bottom is consolidated
Determine angle steel (190) to be fixedly connected with structural steel frame (111).
6. a kind of ultra-high voltage AC transmission antidetonation parallel capacitor device according to claim 5, it is characterised in that：It is each
Include six capacitor units, the company of each insulated platform (110) inner capacitor unit in a capacitor group (170)
It connects mode and goes here and there 12 simultaneously for 2, and be multiple-branching construction；The connection type of each Capacitor stack (1) inner capacitor unit is 10 strings
12 simultaneously.
7. a kind of ultra-high voltage AC transmission antidetonation parallel capacitor device according to claim 1, it is characterised in that：Also wrap
Fence (6) is included, the fence (6) is around multiple Capacitor stacks (1) and its current transformer (3) of connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820052958.9U CN207765334U (en) | 2018-01-12 | 2018-01-12 | A kind of ultra-high voltage AC transmission antidetonation parallel capacitor device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820052958.9U CN207765334U (en) | 2018-01-12 | 2018-01-12 | A kind of ultra-high voltage AC transmission antidetonation parallel capacitor device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207765334U true CN207765334U (en) | 2018-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820052958.9U Active CN207765334U (en) | 2018-01-12 | 2018-01-12 | A kind of ultra-high voltage AC transmission antidetonation parallel capacitor device |
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| Country | Link |
|---|---|
| CN (1) | CN207765334U (en) |
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2018
- 2018-01-12 CN CN201820052958.9U patent/CN207765334U/en active Active
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