CN206742861U - A kind of parallel capacitor device for 20kV power systems - Google Patents
A kind of parallel capacitor device for 20kV power systems Download PDFInfo
- Publication number
- CN206742861U CN206742861U CN201720475934.XU CN201720475934U CN206742861U CN 206742861 U CN206742861 U CN 206742861U CN 201720475934 U CN201720475934 U CN 201720475934U CN 206742861 U CN206742861 U CN 206742861U
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- phase
- capacitor
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- parallel
- cabinet
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
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- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
The utility model discloses a kind of parallel capacitor device for 20kV power systems, including cabinet, three-phase condenser bank is provided with cabinet, three-phase condenser bank is connected in parallel on 20kV aluminium busbar, using single star-like connection between three-phase condenser bank, end of incoming cables series connection isolation earthing switch per phase capacitor bank, it is connected to per the leading-out terminal of phase capacitor bank on neutral point, discharge coil and arrester are parallel with respectively on per phase capacitor bank, and support insulator and the terminal box for secondary connection inside cabinet are additionally provided with cabinet；Also include reactor, the end of incoming cables connection three phase mains of reactor, the leading-out terminal per phase reactor is the end of incoming cables of capacitor.Solve the problems, such as that space-consuming existing for existing 20kV distribution systems capacitor is big.
Description
Technical field
The utility model belongs to capacitor technology field, is related to a kind of shunt capacitor for 20kV power systems and fills
Put.
Background technology
In the 1970s, China completes the work that numerous numerous and diverse medium voltage distribution network system voltages is unified for 20kV
Make.And as the fast development of China's economic, power load surge.Big and medium-sized cities and developed area 10kV have powered not
Local economy development requirement can be met.
Medium voltage distribution network is to connect upstream high power transmission network and the important step of hundreds of millions terminal users, and at present, China is main
Using 20kV, 35kV voltage class, wherein the maximum amount of is 20kV distribution networks.But as China in Recent Years society passes through
The fast development of Ji, user power utilization demand drastically rise, original 20kV distribution systems capacitor show capacity is small, loss is big,
The contradiction of inferior position more than active channel, land occupation, distribution network construction and land resources utilization.
Utility model content
The purpose of this utility model is to provide a kind of parallel capacitor device for 20kV power systems, solves existing
The problem of space-consuming existing for 20kV distribution system capacitors is big.
The utility model is the technical scheme adopted is that a kind of parallel capacitor device for 20kV power systems, bag
Cabinet is included, is provided with three-phase condenser bank in cabinet, three-phase condenser bank is connected in parallel on 20kV aluminium busbar, three-phase condenser bank
Between using single star-like connection, the end of incoming cables series connection isolation earthing switch per phase capacitor bank, per the leading-out terminal of phase capacitor bank
It is connected on neutral point, is parallel with discharge coil and arrester respectively in every phase capacitor bank, post insulator is additionally provided with cabinet
Son and the terminal box for secondary connection inside cabinet；
Also include reactor, the end of incoming cables connection three phase mains of reactor, a phase is mutually should be per the leading-out terminal of phase reactor
The end of incoming cables of capacitor bank.
The characteristics of the utility model, also resides in,
Wherein in three-phase condenser bank, include 12 capacitor units per phase capacitor bank, 12 capacitor units are put down
It is divided into two groups, is connected in series between two group capacitor units, is connected in parallel per each capacitor unit inside group capacitor unit.
The beneficial effects of the utility model are that three-phase condenser bank is integrated in cabinet in the present apparatus, avoid conductor
It is exposed, solve each part all scattering devices in existing capacitor, the problem of caused space-consuming is big；Per phase electric capacity
Device group includes 12 capacitor units, increases the capacity of capacitor.In addition, present apparatus wiring is simple, it is easy for installation.
Brief description of the drawings
Fig. 1 is a kind of front view of parallel capacitor device for 20kV power systems of the utility model；
Fig. 2 is a kind of top view of parallel capacitor device for 20kV power systems of the utility model；
Fig. 3 is a kind of left view of parallel capacitor device for 20kV power systems of the utility model.
In figure, 1. cabinets, 2. aluminium busbars, 3. isolation earthing switch, 4. capacitor units, 5. discharge coils, 6. arresters,
7. support insulator, 8. terminal boxs, 9. reactors.
Embodiment
The utility model is described in detail with reference to the accompanying drawings and detailed description.
A kind of parallel capacitor device for 20kV power systems of the utility model, structure as shown in Figures 1 to 3, including
Cabinet 1, cabinet 1 is interior to be provided with three-phase condenser bank (A, B, C three-phase condenser bank in such as Fig. 2), and three-phase condenser bank is in parallel
On 20kV aluminium busbar 2, using single star-like connection between three-phase condenser bank, the end of incoming cables series connection isolation per phase capacitor bank
Earthed switch 3, it is connected to per the leading-out terminal of phase capacitor bank on neutral point, discharge coil is parallel with respectively in every phase capacitor bank
5 and arrester 6 (arrester 6 carries on-line computing model), support insulator 7 and secondary for the inside of cabinet 1 is additionally provided with cabinet 1
The terminal box 8 of wiring；Support insulator 7 is used to support aluminium busbar 2 and ensures to insulate；
Also include reactor 9, the end of incoming cables connection three phase mains of reactor 9, one is mutually should be per the leading-out terminal of phase reactor 9
The end of incoming cables of phase capacitor bank (three-phase reactor 9 corresponds to three-phase condenser bank respectively).
Wherein in three-phase condenser bank, include 12 capacitor units, 4,12 capacitor units 4 per phase capacitor bank
Two groups are bisected into, is connected in series between two group capacitor units, it is in parallel even per each capacitor unit 4 inside group capacitor unit
Connect that (i.e. every 6 are divided into one group in 12 capacitor units, and 12 capacitor units are divided into two groups, between 6 capacitor units simultaneously
Join, in parallel between two group capacitor units).
A kind of the characteristics of parallel capacitor device for 20kV power systems of the utility model, is, by discharge coil 5, electricity
Anti- device 9 and three-phase condenser bank are integrated in cabinet, and whole device is compact to design, reduces floor space, and the present apparatus
In be provided with three-phase condenser bank, include 12 capacitor units per phase capacitor bank, increase the capacitance of whole device, solution
The problem of existing distribution system capacitance of having determined is small.
Claims (2)
- A kind of 1. parallel capacitor device for 20kV power systems, it is characterised in that：Including cabinet (1), set in cabinet (1) There is three-phase condenser bank, the three-phase condenser bank is connected in parallel on 20kV aluminium busbar (2), between the three-phase condenser bank Using single star-like connection, the end of incoming cables series connection isolation earthing switch (3) per phase capacitor bank, the leading-out terminal per phase capacitor bank connects It is connected on neutral point, is parallel with discharge coil (5) and arrester (6) in every phase capacitor bank respectively, branch is additionally provided with cabinet (1) Post insulator (7) and the terminal box (8) for the internal secondary connection of cabinet (1)；Also include reactor (9), the end of incoming cables connection three phase mains of reactor (9), the leading-out terminal per phase reactor (9) mutually should be The end of incoming cables of one phase capacitor bank.
- A kind of 2. parallel capacitor device for 20kV power systems according to claim 1, it is characterised in that：Institute State in three-phase condenser bank, include 12 capacitor units (4) per phase capacitor bank, 12 capacitor units (4) are bisected into two Group, it is connected in series between two group capacitor units, is connected in parallel per each capacitor unit (4) inside group capacitor unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720475934.XU CN206742861U (en) | 2017-05-02 | 2017-05-02 | A kind of parallel capacitor device for 20kV power systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720475934.XU CN206742861U (en) | 2017-05-02 | 2017-05-02 | A kind of parallel capacitor device for 20kV power systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206742861U true CN206742861U (en) | 2017-12-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720475934.XU Active CN206742861U (en) | 2017-05-02 | 2017-05-02 | A kind of parallel capacitor device for 20kV power systems |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206742861U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112563028A (en) * | 2020-12-21 | 2021-03-26 | 江苏现代电力科技股份有限公司 | Double-group three-phase low-voltage power capacitor |
-
2017
- 2017-05-02 CN CN201720475934.XU patent/CN206742861U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112563028A (en) * | 2020-12-21 | 2021-03-26 | 江苏现代电力科技股份有限公司 | Double-group three-phase low-voltage power capacitor |
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