CN209844556U - Compact cabinet type 35kV high-voltage parallel capacitor device - Google Patents
Compact cabinet type 35kV high-voltage parallel capacitor device Download PDFInfo
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- CN209844556U CN209844556U CN201920738739.0U CN201920738739U CN209844556U CN 209844556 U CN209844556 U CN 209844556U CN 201920738739 U CN201920738739 U CN 201920738739U CN 209844556 U CN209844556 U CN 209844556U
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- cabinet body
- voltage parallel
- parallel capacitor
- steel plate
- plate bending
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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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- 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
- Y02E40/40—Arrangements for reducing harmonics
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Abstract
The utility model discloses a compact cabinet type 35kV high-voltage parallel capacitor device, which comprises a steel plate bending plastic spraying cabinet body, a 35kV isolation belt grounding switch and a 35kV porcelain post insulator; the utility model has the advantages of reasonable design in structure, the practicality is very high, in operation, 35kV median ground connection switch is when this device has a power failure to overhaul, the main sword is in the separating brake, the earthing switch is in the position of closing the floodgate, so that maintainer safety is relieved and is carried out the equipment maintenance and overhaul, the series reactor is used for inhibiting the system harmonic and restricts the combined floodgate surge current, prevent that the system harmonic from getting into the condenser and damaging the electric capacity equipment, high-pressure parallel capacitor is used for providing and sends the capacitive idle, compensating system is required, under the effect of zinc oxide arrester, when being used for protecting the condenser unit at combined floodgate operation overvoltage or meeting with the thunderbolt circuit, guarantee that the condenser does not lead to puncturing and damaging equipment because of insulating problem, and this device compact structure, area is little, components and parts are rationally distributed.
Description
Technical Field
The utility model relates to a capacitor fitting technical field specifically is a parallel capacitor device of compact cabinet type 35kV high pressure.
Background
With the gradual development of power systems, compact and intelligent box-type substations are applied more and more widely. Some domestic photovoltaic power stations, wind-powered electricity generation field consequently select more convenient case to become because site conditions's restriction, collect switch board, electric capacity cabinet, secondary measurement, measure the cabinet and install in different positions in a case becomes. Because the voltage grade of a 35kV system is high, the requirement on the clear distance between phases is high, when a conventional parallel capacitor is designed, three-phase capacitor banks are arranged in a split-phase mode, the capacitor is divided in a series connection mode, a series connection section connecting frame is fixed by a potential to reduce the voltage between a capacitor shell on the wire inlet side and a capacitor shell on the wire outlet side and the electrodes of the parallel capacitor, and the frame operates in a charged mode.
At present, the occupied area of the existing high-voltage parallel capacitor device needs to be increased, the requirement for installation in a box transformer substation cannot be met, the equipment installation is complex, the equipment protection performance is weak, the service life is shortened, and meanwhile, certain potential safety hazards exist. Accordingly, one skilled in the art provides a compact cabinet type 35kV high voltage parallel capacitor device to solve the problems set forth in the background art.
Disclosure of Invention
An object of the utility model is to provide a compact cabinet type 35kV high pressure shunt capacitance ware device to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a compact cabinet type 35kV high-voltage parallel capacitor device comprises a steel plate bending plastic spraying cabinet body, a 35kV isolation belt grounding disconnecting link and a 35kV porcelain post insulator, the steel plate bending plastic spraying cabinet body is split, a first cabinet body is arranged at the left part of the steel plate bending plastic spraying cabinet body, the right part of the steel plate bending plastic spraying cabinet body is provided with a second cabinet body, the upper side of the left end of the first cabinet body is provided with a 35kV isolation belt grounding knife switch, the bottom end in the first cabinet body is provided with a series reactor, the upper end of the 35kV isolation belt grounding disconnecting link is connected with the series reactor, a plurality of 35kV porcelain post insulators are arranged on the right side of the bottom end in the second cabinet body, the upper ends of the 35kV porcelain post insulators are connected with a hot galvanizing frame together, and a neutral point unbalanced current transformer is arranged in the middle of the rear end of the second cabinet body, and the front part of the neutral point unbalanced current transformer extends into the hot galvanizing frame.
As a further aspect of the present invention: the series reactor inlet wire side is provided with a plurality of post insulators, be connected with the female winding displacement of support on the post insulator, the protection level of the spraying plastics cabinet body of bending of steel sheet is IP3X at least, the fixed orifices has all been seted up in spraying plastics cabinet body bottom channel-section steel four corners of bending of steel sheet.
As a further aspect of the present invention: the left side of the bottom end in the second cabinet body is provided with a plurality of zinc oxide arresters, the number of 35kV porcelain post insulators is at least four, so that the insulation of the hot-dip galvanized frame and the steel plate bending plastic spraying cabinet body is guaranteed.
As a further aspect of the present invention: the hot galvanizing frame is characterized in that a plurality of high-voltage parallel capacitors are symmetrically arranged on the left side and the right side inside the hot galvanizing frame, and the upper ends of the high-voltage parallel capacitors are connected with spraying type fuses.
As a further aspect of the present invention: and a manual operating mechanism and a switching-on and switching-off indicating lamp are arranged on the 35kV isolation belt grounding disconnecting link, and the running state of the capacitor bank equipment is indicated and displayed through switching-on and switching-off.
As a further aspect of the present invention: the upper end of the 35kV isolation strip grounding disconnecting link is connected with the wire inlet side of the series reactor through a supporting busbar, the wire outlet side of the series reactor is connected with the wire inlet side of the spraying-line-type fuse through the supporting busbar, the middle part of the supporting busbar is connected with the zinc oxide arrester through a wire, and the wire outlet side of the spraying-line-type fuse is connected with the wire inlet electrode of the high-voltage parallel capacitor through a wire.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model has the advantages of reasonable design in structure, the practicality is very high, in operation, 35kV median ground connection switch is when this device has a power failure to overhaul, the main sword is in the separating brake, the earthing switch is in the position of closing the floodgate, so that maintainer safety is relieved and is carried out the equipment maintenance and overhaul, the series reactor is used for inhibiting the system harmonic and restricts the combined floodgate surge current, prevent that the system harmonic from getting into the condenser and damaging the electric capacity equipment, high-pressure parallel capacitor is used for providing and sends the capacitive idle, compensating system is required, under the effect of zinc oxide arrester, when being used for protecting the condenser unit at combined floodgate operation overvoltage or meeting with the thunderbolt circuit, guarantee that the condenser does not lead to puncturing and damaging equipment because of insulating problem, and this device compact structure, area is little, components and parts are rationally distributed.
Drawings
Fig. 1 is a schematic structural diagram of a compact cabinet type 35kV high voltage parallel capacitor device.
Fig. 2 is a top view of a compact cabinet type 35kV high voltage parallel capacitor device.
Fig. 3 is a schematic diagram of a compact cabinet type 35kV high voltage parallel capacitor device and the like.
In the figure: the device comprises a 35kV isolation strip grounding disconnecting link 1, a series reactor 2, a zinc oxide lightning arrester 3, a spraying-stepping type fuse 4, a high-voltage parallel capacitor 5, a neutral point unbalanced current transformer 6, a 35kV porcelain post insulator 7, a hot galvanizing frame 8 and a steel plate bending plastic spraying cabinet body 9.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, in the embodiment of the present invention, a compact cabinet type 35kV high voltage parallel capacitor device comprises a steel plate bending plastic spraying cabinet body 9, a 35kV median grounding switch 1 and a 35kV porcelain post insulator 7, wherein the steel plate bending plastic spraying cabinet body 9 is split, a first cabinet body is arranged at the left part of the steel plate bending plastic spraying cabinet body 9, a second cabinet body is arranged at the right part of the steel plate bending plastic spraying cabinet body 9, the upper side of the left end of the first cabinet body is provided with the 35kV median grounding switch 1, the bottom end of the inner part of the first cabinet body is provided with a series reactor 2, the upper end of the 35kV median grounding switch 1 is connected with the series reactor 2, the right side of the bottom end of the inner part of the second cabinet body is provided with a plurality of 35kV porcelain post insulators 7, the upper ends of the 35kV porcelain post insulators 7 are commonly connected with a hot galvanizing frame 8, the middle part of the rear end of the second, the front part of the neutral point unbalanced current transformer 6 extends into a hot galvanizing frame 8.
2 inlet wire side ends of series reactor are provided with a plurality of post insulators, be connected with the female winding displacement of support on the post insulator, the protection level that the spraying plastics cabinet body 9 was bent to the steel sheet is IP3X at least, the fixed orifices has all been seted up in the steel sheet 9 bottom channel-section steel four corners of spraying plastics cabinet body of bending.
The left side of the bottom end in the second cabinet body is provided with a plurality of zinc oxide arresters 3, the number of 35kV porcelain post insulators 7 is at least four, so that the insulation of a hot galvanizing frame 8 and a steel plate bending plastic spraying cabinet body 9 is guaranteed.
The hot galvanizing frame 8 is characterized in that a plurality of high-voltage parallel capacitors 5 are symmetrically arranged on the left side and the right side inside the hot galvanizing frame 8, and the upper ends of the high-voltage parallel capacitors 5 are connected with the spraying type fuses 4.
And the 35kV isolation belt grounding disconnecting link 1 is provided with a manual operating mechanism and a switching-on and switching-off indicating lamp, and the operating state of the capacitor bank equipment is indicated and displayed through switching-on and switching-off.
The upper end of the 35kV isolation strip grounding disconnecting link 1 is connected with the wire inlet side of the series reactor 2 through a supporting busbar, the wire outlet side of the series reactor 2 is connected with the wire inlet side of the spray-type fuse 4 through the supporting busbar, the middle part of the supporting busbar is connected with the zinc oxide arrester 3 through a wire, and the wire outlet side of the spray-type fuse 4 is connected with the wire inlet electrode of the high-voltage parallel capacitor 5 through a wire.
The utility model discloses a theory of operation is:
the utility model relates to a compact cabinet type 35kV high voltage parallel capacitor device, during operation, a cable directly extends into from the bottom of a steel plate bending plastic spraying cabinet body 9 and is fixed on a 35kV isolation belt grounding disconnecting link 1 through a cable clamp, under the action of the 35kV isolation belt grounding disconnecting link 1, when the device is overhauled in power failure, a main knife is in a disconnecting position and a grounding knife is in a switching-on position so as to be convenient for maintainers to safely and securely maintain and overhaul equipment, under the action of a series reactor 2, the device is used for inhibiting system harmonic waves and limiting switching-on inrush current, the system harmonic waves are prevented from entering a capacitor to damage capacitance equipment, under the action of a high voltage parallel capacitor 5, the device is used for providing capacitive reactive power, required by a compensation system, under the action of a zinc oxide arrester 3, the device is used for protecting a capacitor unit from breakdown caused by lightning stroke during switching-on overvoltage operation or encountering with a circuit, the, the discharging resistor is distributed in a single capacitor, the residual voltage can be reduced to below 75V within 10 minutes after the capacitor is powered off, the capacitor unit is protected from being damaged, the spray-type fuse 4 is integrally installed on the hot-dip galvanizing frame 8, the 35kV porcelain post insulator 7 is installed at the bottom end, the neutral point is guaranteed not to be grounded in the operation process of the equipment, the hot-dip galvanizing frame 8 and the insulation of the steel plate bending plastic spraying cabinet body 9 are guaranteed, the device is compact in structure and small in occupied area, components are reasonable in layout, and the overall strength meets the installation and transportation requirements.
The utility model has the advantages of reasonable design in structure, the practicality is very high, in operation, 35kV median ground connection switch is when this device has a power failure to overhaul, the main sword is in the separating brake, the earthing switch is in the position of closing the floodgate, so that maintainer safety is relieved and is carried out the equipment maintenance and overhaul, the series reactor is used for inhibiting the system harmonic and restricts the combined floodgate surge current, prevent that the system harmonic from getting into the condenser and damaging the electric capacity equipment, high-pressure parallel capacitor is used for providing and sends the capacitive idle, compensating system is required, under the effect of zinc oxide arrester, when being used for protecting the condenser unit at combined floodgate operation overvoltage or meeting with the thunderbolt circuit, guarantee that the condenser does not lead to puncturing and damaging equipment because of insulating problem, and this device compact structure, area is little, components and parts are rationally distributed.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. A compact cabinet type 35kV high-voltage parallel capacitor device comprises a steel plate bending plastic spraying cabinet body (9), a 35kV isolation strip grounding knife switch (1) and 35kV porcelain post insulators (7), and is characterized in that the steel plate bending plastic spraying cabinet body (9) is split, a first cabinet body is arranged at the left part of the steel plate bending plastic spraying cabinet body (9), a second cabinet body is arranged at the right part of the steel plate bending plastic spraying cabinet body (9), the 35kV isolation strip grounding knife switch (1) is arranged on the upper side of the left end of the first cabinet body, a series reactor (2) is arranged at the bottom end inside the first cabinet body, the series reactor (2) is connected at the upper end of the 35kV isolation strip grounding knife switch (1), a plurality of 35kV porcelain post insulators (7) are arranged on the right side of the bottom end inside the second cabinet body, and a hot galvanizing frame (8) is connected at the upper ends of the 35kV porcelain post insulators (, and a neutral point unbalanced current transformer (6) is arranged in the middle of the rear end of the second cabinet body, and the front part of the neutral point unbalanced current transformer (6) extends into a hot galvanizing frame (8).
2. The compact cabinet type 35kV high-voltage parallel capacitor device as claimed in claim 1, wherein a plurality of post insulators are arranged at the wire inlet side end of the series reactor (2), the post insulators are connected with supporting bus wires, the protection grade of the steel plate bending plastic spraying cabinet body (9) is at least IP3X, and four corners of channel steel at the bottom end of the steel plate bending plastic spraying cabinet body (9) are provided with fixing holes.
3. The compact cabinet type 35kV high-voltage parallel capacitor device as claimed in claim 1, wherein a plurality of zinc oxide arresters (3) are arranged on the left side of the bottom end inside the second cabinet body, and the number of the 35kV porcelain post insulators (7) is at least four, so as to ensure the insulation of the hot galvanizing frame (8) and the steel plate bending plastic spraying cabinet body (9).
4. The compact cabinet type 35kV high-voltage parallel capacitor device according to claim 1, wherein a plurality of high-voltage parallel capacitors (5) are symmetrically arranged on the left side and the right side inside the hot galvanizing frame (8), and the upper ends of the high-voltage parallel capacitors (5) are connected with a spraying-type fuse (4).
5. The compact cabinet type 35kV high-voltage parallel capacitor device as claimed in claim 1, wherein the 35kV isolation band grounding switch (1) is provided with a manual operating mechanism and a switching-on/off indicator lamp, and the capacitor bank equipment operation state is displayed through switching-on/off indication.
6. The compact cabinet type 35kV high-voltage parallel capacitor device according to claim 1, wherein the upper end of the 35kV isolation strip grounding disconnecting link (1) is connected with the wire inlet side of the series reactor (2) through a supporting bus bar, the wire outlet side of the series reactor (2) is connected with the wire inlet side of the spraying-type fuse (4) through the supporting bus bar, the middle part of the supporting bus bar is connected with the zinc oxide arrester (3) through a lead, and the wire outlet side of the spraying-type fuse (4) is connected with the wire inlet electrode of the high-voltage parallel capacitor (5) through a lead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920738739.0U CN209844556U (en) | 2019-05-21 | 2019-05-21 | Compact cabinet type 35kV high-voltage parallel capacitor device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920738739.0U CN209844556U (en) | 2019-05-21 | 2019-05-21 | Compact cabinet type 35kV high-voltage parallel capacitor device |
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| CN209844556U true CN209844556U (en) | 2019-12-24 |
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| CN201920738739.0U Active CN209844556U (en) | 2019-05-21 | 2019-05-21 | Compact cabinet type 35kV high-voltage parallel capacitor device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112787316A (en) * | 2020-12-30 | 2021-05-11 | 广东电网有限责任公司电力科学研究院 | Suppression device for transformer excitation surge current |
-
2019
- 2019-05-21 CN CN201920738739.0U patent/CN209844556U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112787316A (en) * | 2020-12-30 | 2021-05-11 | 广东电网有限责任公司电力科学研究院 | Suppression device for transformer excitation surge current |
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