CN203813448U - 10kV high voltage reactive automatic compensation device - Google Patents
10kV high voltage reactive automatic compensation device Download PDFInfo
- Publication number
- CN203813448U CN203813448U CN201420255359.9U CN201420255359U CN203813448U CN 203813448 U CN203813448 U CN 203813448U CN 201420255359 U CN201420255359 U CN 201420255359U CN 203813448 U CN203813448 U CN 203813448U
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- Prior art keywords
- switch
- compensation
- busbar
- compensating
- 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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Abstract
The utility model discloses a 10kV high voltage reactive automatic compensation device comprising a main busbar, a wire inlet cabinet, and at least two compensation cabinets having the same structure. A lead busbar connected with the main busbar and a pneumatic load isolation switch connected with the lead busbar are disposed in the wire inlet cabinet. Six compensation units, which are independent from each other, and have the same structures, are disposed in each of the compensation cabinets. Each of the compensation units is formed by serially connecting a current limiting reactor, a high voltage capacitor, and a permanent magnet vacuum fling-cut switch together, and the serial connection circuit is provided with a mutual inductor. A current limiting reactor of each of the compensation units is connected with the main busbar by an independent jet fuse, and the output end of the mutual inductor of each of the compensation units is connected with a controller. The 10kV high voltage reactive automatic compensation device is advantageous in that the pneumatic load isolation switch is used as a main protection switch, and the protection of the device can be divided into the independent protections of the plurality of compensation units in each of the compensation cabinets; when one of the compensation units is faulted, the compensation unit can be isolated automatically without affecting the operation of other compensation units.
Description
Technical field
The utility model relates to high-pressure reactive compensation field, specifically a kind of 10kV High Voltage and Passive Automatic Compensation Device.
Background technology
In tradition 10kV High Voltage and Passive Automatic Compensation Device, more than 60% capacitor switching switch is high-voltage alternating contactor, when dropping into and cutting off capacitive load, easily causes and shoves and restrike; And, general fuse or the protection of prefix switch cabinet of only leaning on total current limliting of total protection of tradition compensation arrangement, generally speaking, fuse can only be served as accident protection and can not be served as error protection, has particularly seldom produced now the 10kV fuse that maximum rated fusing value is greater than 120A; Its cascade protection generally also only adopts the fuse protection of current limliting, and this protected mode is difficult to find the minor variations of electric current when capacitor group internal series-connection unit punctures, can lead in the course of time capacitor and be split to bulging by bulge, even produces the accident of leakage of oil.
In tradition compensation arrangement, the compensation capacity of each compensating cabinet is generally at 500 ~ 1800kvar, and minimum is 300kvar, and each compensating cabinet can only be placed a group capacitor, 3 single-phase electricity containers, differential larger, in the time of the high and low paddy of load, easily cause overcompensation or undercompensation, compensation effect is poor.
Utility model content
The problems such as technical problem to be solved in the utility model is to overcome in prior art, and the defencive function imperfection that traditional compensation arrangement exists and compensation effect are poor, provide a kind of 10kV High Voltage and Passive Automatic Compensation Device.
The utility model for addressing the above problem adopted technical scheme is: a kind of 10kV High Voltage and Passive Automatic Compensation Device, comprise main busbar, an incoming line cabinet and at least two compensating cabinets that structure is identical, in incoming line cabinet, be provided with the wire busbar that is connected to main busbar and the air-blast on-load isolator that is connected to wire busbar, in each compensating cabinet, be equipped with the wiring that is connected to main busbar, in each compensating cabinet, be equipped with six groups of separate and structure is identical compensating units, every group of compensating unit is by current limiting reactor, the permanent magnet vacuum fling-cut switch of high-voltage capacitor and control high-voltage capacitor switching is connected in series composition, and this series circuit is provided with instrument transformer, high-voltage capacitor in described six groups of compensating units and permanent magnet vacuum fling-cut switch are all encapsulated in a metal shell that transformer oil is housed, current limiting reactor in every group of compensating unit is all connected with main busbar by spray-by-type fuse independently, in every group of compensating unit, the output of instrument transformer is all connected with the controller of controlling the action of permanent magnet vacuum fling-cut switch.
In the utility model, air-blast on-load isolator possesses the on-load operation of rated current 630A and the visible breakpoint isolation features of isolation knife, does not conveniently have the user of prefix switch cabinet protection to use, and is convenient to maintenance and the maintenance of device simultaneously.
The inside of described incoming line cabinet is also provided with the guidance panel for the insulation column of fixing cord busbar, current transformer, high pressure sensor and the work of control overhead isolating switch, current transformer is connected on the connection line of wire busbar and air-blast on-load isolator, described air-blast on-load isolator comprises switch contact box, is located at the switch movable contact on switch contact box top and is located at the switch static contact of switch contact box bottom, and switch static contact is connected with high pressure sensor.
Further, in above-mentioned incoming line cabinet, be also provided with one end and be connected with described switch static contact, the lightning arrester of other end ground connection.
The utility model is applicable to the reactive automatic tracking compensation of rural power grids 10kV circuit, controller is according to the break-make of the each permanent magnet vacuum fling-cut switch of the corresponding control of output signal of instrument transformer in every group of compensating unit, to improve the power factor of transformer station's internal bus or 10kV circuit, energy-saving and cost-reducing to greatest extent, improve quality of voltage.Wherein, in each compensating cabinet, be provided with six compensating units, the capacity of each compensating unit middle-and high-voltage capacitor is 100 ~ 200kvar, the capacity that is each compensating cabinet high-voltage capacitor is 600 ~ 1200kvar, compensating unit classification is many, and differential is only 100 ~ 200kvar, and period and seasonal peaks and troughs load all can be obtained better compensation effect, when work, be tending towards Continuous Compensation, can realize the compensation that becomes more meticulous.
Beneficial effect: the utility model adopts the general protection switch of air-blast on-load isolator as this device, simultaneously, the protection of this device is divided into the protection of each compensating cabinet, each compensating cabinet is divided into again the protection of six separate compensating units, each compensating unit automatism isolation that breaks down, does not affect the operation of other compensating unit; Compensating unit progression is many, is tending towards Continuous Compensation, improves compensation effect.
Brief description of the drawings
Fig. 1 is elementary diagram of the present utility model;
Fig. 2 is the structural representation of incoming line cabinet in the utility model;
Fig. 3 is the structural representation of compensating cabinet in the utility model.
Reference numeral: 1, main busbar, 2, incoming line cabinet, 3, compensating cabinet, 4, air-blast on-load isolator, 401, switch movable contact, 402, switch contact box, 403, switch static contact, 5, high pressure sensor, 6, wire busbar, 7, compensating unit, 8, spray-by-type fuse, 9, primary line, 10, secondary line, 11, current limiting reactor, 12, instrument transformer, 13, permanent magnet vacuum fling-cut switch, 14, high-voltage capacitor, 15, insulation column, 16, current transformer, 17, control panel, 18, lightning arrester.
Embodiment
As shown in Figure 1, a kind of 10kV High Voltage and Passive Automatic Compensation Device, comprise main busbar 1, incoming line cabinet 2 and at least two compensating cabinets 3 that structure is identical, as shown in Figure 2, in incoming line cabinet 2, be provided with and be connected to the wire busbar 6 of main busbar 1, insulation column 15 for fixing cord busbar 6, be also provided with air-blast on-load isolator 4, current transformer 16, lightning arrester 18, high pressure sensor 5 and control the guidance panel 17 that air-blast on-load isolator 4 is worked.Wherein, current transformer 16 is connected on the connection line of wire busbar 6 and air-blast on-load isolator 4; Air-blast on-load isolator 4 comprises switch contact box 402, is located at the switch movable contact 401 on switch contact box 402 tops and is located at the switch static contact 403 of switch contact box 402 bottoms, switch static contact 403 is connected with high pressure sensor 5 with lightning arrester 18 respectively, the other end ground connection of lightning arrester 18.
As shown in Figure 1; in two compensating cabinets 3, be respectively equipped with the primary line 9 and the secondary line 10 that are connected to main busbar 1; described incoming line cabinet 2 comprises controller and is connected to the air-blast on-load isolator 4 of wire busbar 6; wherein, the isolation breakpoint of main line when air-blast on-load isolator 4 is as total protection of this device and maintenance.As shown in Figure 3, in each compensating cabinet 3, be equipped with the wiring that is connected to main busbar 1, each compensating cabinet 3 comprises six groups of separate and structure is identical compensating units 7, every group of compensating unit is by current limiting reactor 11, the permanent magnet vacuum fling-cut switch 13 of high-voltage capacitor 14 and control high-voltage capacitor 14 switchings is connected in series composition, and this series circuit is provided with instrument transformer 12, high-voltage capacitor 14 in described six groups of compensating units and permanent magnet vacuum fling-cut switch 13 are all encapsulated in a metal shell that transformer oil is housed, current limiting reactor 11 in every group of compensating unit is all connected with main busbar 1 by spray-by-type fuse 8 independently, spray-by-type fuse 8 carries out current-limiting protection for the high-voltage capacitor to every group of compensating unit, current limiting reactor 11 is for dropping into surge suppression when electrical network to high-voltage capacitor, the impact of degree electrical network while reducing electric capacity input, the life-span of extension device.In every group of compensating unit, the output of instrument transformer 12 is all connected with the controller that control permanent magnet vacuum fling-cut switch 13 moves, controller, according to the break-make of the each permanent magnet vacuum fling-cut switch 13 of the corresponding control of output signal of instrument transformer 12 in every group of compensating unit, carries out reactive power compensation.
Wherein, every group of compensating unit realized surge suppression when high-voltage capacitor is dropped into by current limiting reactor, can be limited in 11 times of rated current, ensures the reliable and stable operation of this device; Every group of compensating unit realized input or the cut-out of high-voltage capacitor by permanent magnet vacuum fling-cut switch, permanent-magnetic switching flexible movements are reliable, and the life-span is long, and the advantage that existing contactor can frequent operation, has again the advantage that circuit breaker drop-out current is large; Can reach the mechanical endurance of this switch 150,000 times, and this switch breaking speed is fast, when disjunction, without restriking, when action, there will not be overvoltage phenomenon, stable and reliable operation.
Claims (3)
1. a 10kV High Voltage and Passive Automatic Compensation Device, it is characterized in that: comprise main busbar (1), an incoming line cabinet (2) and at least two compensating cabinets (3) that structure is identical, in incoming line cabinet (2), be provided with the wire busbar (6) that is connected to main busbar (1) and the air-blast on-load isolator (4) that is connected to wire busbar (6), each compensating cabinet is equipped with the wiring that is connected to main busbar (1) in (3), in each compensating cabinet (3), be equipped with six groups of separate and structure is identical compensating units (7), every group of compensating unit is by current limiting reactor (11), the permanent magnet vacuum fling-cut switch (13) of high-voltage capacitor (14) and control high-voltage capacitor (14) switching is connected in series composition, and this series circuit is provided with instrument transformer (12), high-voltage capacitor (14) in described six groups of compensating units and permanent magnet vacuum fling-cut switch (13) are all encapsulated in a metal shell that transformer oil is housed, current limiting reactor (11) in every group of compensating unit is all connected with main busbar (1) by spray-by-type fuse (8) independently, in every group of compensating unit, the output of instrument transformer (12) is all connected with the controller of controlling permanent magnet vacuum fling-cut switch (13) action.
2. a kind of 10kV High Voltage and Passive Automatic Compensation Device according to claim 1, it is characterized in that: the inside of described incoming line cabinet (2) is also provided with the insulation column (15) for fixing cord busbar (6), current transformer (16), the guidance panel (17) of high pressure sensor (5) and control air-blast on-load isolator (4) work, current transformer (16) is connected on the connection line of wire busbar (6) and air-blast on-load isolator (4), described air-blast on-load isolator (4) comprises switch contact box (402), be located at the switch movable contact (401) on switch contact box (402) top and be located at the switch static contact (403) of switch contact box (402) bottom, switch static contact (403) is connected with high pressure sensor (5).
3. a kind of 10kV High Voltage and Passive Automatic Compensation Device according to claim 2, is characterized in that: in described incoming line cabinet (2), be also provided with one end and be connected with described switch static contact (403), the lightning arrester (18) of other end ground connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420255359.9U CN203813448U (en) | 2014-05-19 | 2014-05-19 | 10kV high voltage reactive automatic compensation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420255359.9U CN203813448U (en) | 2014-05-19 | 2014-05-19 | 10kV high voltage reactive automatic compensation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203813448U true CN203813448U (en) | 2014-09-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420255359.9U Expired - Fee Related CN203813448U (en) | 2014-05-19 | 2014-05-19 | 10kV high voltage reactive automatic compensation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203813448U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106786655A (en) * | 2017-01-04 | 2017-05-31 | 繁昌县易能科技有限责任公司 | A kind of adjustable capacitor compensation cabinet |
| CN113852348A (en) * | 2021-08-11 | 2021-12-28 | 华翔翔能科技股份有限公司 | Permanent magnet type counter-excitation switch applied to photovoltaic power generation system |
-
2014
- 2014-05-19 CN CN201420255359.9U patent/CN203813448U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106786655A (en) * | 2017-01-04 | 2017-05-31 | 繁昌县易能科技有限责任公司 | A kind of adjustable capacitor compensation cabinet |
| CN113852348A (en) * | 2021-08-11 | 2021-12-28 | 华翔翔能科技股份有限公司 | Permanent magnet type counter-excitation switch applied to photovoltaic power generation system |
| CN113852348B (en) * | 2021-08-11 | 2024-03-26 | 华翔翔能科技股份有限公司 | Permanent magnet type opposite-excitation switch applied to photovoltaic power generation system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140903 Termination date: 20180519 |