CN106128866B - A kind of isolation circuit breakers of in-built electrical minor voltage transformer - Google Patents
A kind of isolation circuit breakers of in-built electrical minor voltage transformer Download PDFInfo
- Publication number
- CN106128866B CN106128866B CN201610537728.7A CN201610537728A CN106128866B CN 106128866 B CN106128866 B CN 106128866B CN 201610537728 A CN201610537728 A CN 201610537728A CN 106128866 B CN106128866 B CN 106128866B
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- China
- Prior art keywords
- casing
- film paper
- circuit breakers
- isolation circuit
- support
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- 238000002955 isolation Methods 0.000 title claims abstract description 40
- 239000003990 capacitor Substances 0.000 claims abstract description 47
- 239000003822 epoxy resin Substances 0.000 claims abstract description 20
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 20
- 239000013307 optical fiber Substances 0.000 claims abstract description 10
- 125000006850 spacer group Chemical group 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims description 6
- 241000233855 Orchidaceae Species 0.000 claims 1
- 239000000835 fiber Substances 0.000 claims 1
- 239000007789 gas Substances 0.000 description 13
- 238000010586 diagram Methods 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 230000005684 electric field Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000010354 integration Effects 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 2
- PPTYJKAXVCCBDU-UHFFFAOYSA-N Rohypnol Chemical compound N=1CC(=O)N(C)C2=CC=C([N+]([O-])=O)C=C2C=1C1=CC=CC=C1F PPTYJKAXVCCBDU-UHFFFAOYSA-N 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000009421 internal insulation Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/02—Housings; Casings; Bases; Mountings
- H01H71/0207—Mounting or assembling the different parts of the circuit breaker
Landscapes
- Gas-Insulated Switchgears (AREA)
- Transformers For Measuring Instruments (AREA)
Abstract
The invention discloses a kind of isolation circuit breakers of in-built electrical minor voltage transformer, it is characterized in that, include: arc-chutes casing, spacer flanger, epoxy resin cylinder, film paper capacitor divider, support casing, insulated pull rod, support signal wire in casing wall, support casing wall external signal line, support sleeve bottom flange, hermetic terminal, remote end module, optical fiber, combining unit, in which: arc-chutes casing and support casing are connected to spacer flanger two sides.Insulated pull rod is arranged in arc-chutes casing and supports the axle center of casing.Support casing and epoxy resin cylinder for coaxial direction setting, inner cylinder is epoxy resin cylinder, and outer cylinder is to support casing.Film paper capacitor divider, which is fixed on, to be supported between casing and epoxy resin cylinder.The output signal of film paper capacitor divider passes through hermetic terminal using signal wire in support casing wall and exports, output to remote end module.The output signal of film paper capacitor divider is converted to digital signal by remote end module, and reaches combining unit by optical fiber.
Description
Technical field
The present invention relates to smart grid switchgear, more particularly, to a kind of in-built electrical minor voltage transformer every
From breaker.
Background technique
China built New Generation of Intelligent substation since 2013, and integrated form isolation circuit breakers become weight in a new generation station
One of primary equipment wanted.So far, domestic manufacturer has succeeded in developing 126kV~363kV isolation circuit breakers equipment successively, and
The Demonstration Application in the New Generation of Intelligent substation of State Grid Corporation of China's construction.But China is in first phase New Generation of Intelligent power transformation
The integrated form isolation circuit breakers stood and expand Demonstration Application in demonstration project are only integrated with electronic current mutual inductor, not yet develop
The product of integrated electronic type voltage transformer out.As substation's occupied area is further reduced, the integrated level requirement of equipment must
It is so higher and higher, it is necessary to carry out the Research of Integration of electronic type voltage transformer and isolation circuit breakers, be isolation circuit breakers
Further intelligent, volume miniaturization lays the foundation.
In existing outdoor high voltage switchgear, high-voltage disconnecting circuit breaker and voltage transformer are usually fabricated to respectively respectively
Independent product will install respective bracket on shaft tower outdoors during installation and carry out wiring respectively, therefore there is voltages
Mutual inductor is external, occupies the defects of bigger space and installation cost are high, installation procedure is cumbersome.Voltage transformer is external, needs
Increase mounting bracket and connecting line, so that the security presence hidden danger of high-voltage line protection and influencing the beauty of power network line system
It sees.
Summary of the invention
To solve the above-mentioned problems, the present invention provides a kind of isolation circuit breakers of in-built electrical minor voltage transformer,
It is characterized in that, comprising: arc-chutes casing, epoxy resin cylinder, film paper capacitor divider, supports casing, insulation to draw at spacer flanger
Bar, support casing wall in signal wire, support casing wall external signal line, support sleeve bottom flange, hermetic terminal, remote end module,
Optical fiber, combining unit, in which:
The arc-chutes casing and the support casing are connected to the spacer flanger two sides；The insulated pull rod is set
It sets in the arc-chutes casing and the axle center for supporting casing；The support casing and the epoxy resin cylinder are coaxial direction
Setting, inner cylinder are the epoxy resin cylinder, and outer cylinder is the support casing；The film paper capacitor divider is fixed on coaxial institute
It states and supports between casing and epoxy resin cylinder；Pass through the support sleeve bottom flange using signal wire in the support casing wall
On the hermetic terminal export the output signal of the film paper capacitor divider, and via the hermetic terminal and described remote
The output signal is transferred to the remote end module by the parallel circuit established between end module；The remote end module is via described
The output signal of the film paper capacitor divider is transmitted to the combining unit by optical fiber.
Preferably, the internal diameter of the barrel of the outer cylinder is adjusted according to the volume of the film paper capacitor divider.
Preferably, the capacitance of the film paper capacitor divider can be adjusted, and the film paper capacitor divider is 4 strings,
It is even and be symmetrically distributed between the coaxial inner cylinder and outer cylinder.
Preferably, the SF of uniform pressure is filled between the coaxial inner cylinder and outer cylinder and in the inner cylinder6Gas,
The SF6Gas pressure is identical as gas pressure in the arc-chutes casing.
Preferably, it is connected between the coaxial inner cylinder and outer cylinder by gas piping, and matched outside the support casing
Set SF6Density meter.
Preferably, the hermetic terminal is in parallel electric by the support casing wall external signal line foundation with the remote end module
Road.
Preferably, signal wire and the support casing wall external signal line are Shielded Twisted Pair in the support casing wall.
Preferably, the analog voltage signal received is converted to digital signal by the remote end module, and by the number
Signal is transmitted to the combining unit via the optical fiber.
Preferably, the hermetic terminal quantity is 4, including 1 primary seal terminal, by remaining 3 hermetic terminal difference
It is connect with the primary seal terminal；The parallel circuit established between the primary seal terminal and the remote end module, and via institute
It states parallel circuit and the output signal of the film paper capacitor divider is transferred to the remote end module.
A kind of isolation circuit breakers of the in-built electrical minor voltage transformer proposed according to the present invention, implementation proposed by the present invention
Mode integrates two kinds of primary equipments of electronic type voltage transformer and isolation circuit breakers, improves integration of equipments degree, saves
The occupied area of equipment.And the integrated morphology of electronic type voltage transformer proposed by the present invention and isolation circuit breakers, does not change
Former isolation circuit breakers support the insulation system of inside pipe casing, do not influence internal electric field distribution.In the present invention program, capacitance it is big
The small volume for determining film paper capacitor divider supports the internal diameter of casing that can adjust setting according to the volume of film paper capacitor.Electricity
Minor voltage transformer generally uses film paper capacitor divider and oil-filled scheme, and embodiments of the present invention are divided in film paper capacitor
Device arrangement space is filled with SF6Gas, embodiments of the present invention simplify the mounting process of equipment, while also avoiding inner loop
Oxygen resin cartridge bears inside and outside differential pressure.
Detailed description of the invention
By reference to the following drawings, exemplary embodiments of the present invention can be more fully understood by:
Fig. 1 is the isolation circuit breakers structural schematic diagram according to the built-in voltage mutual inductor of embodiment of the present invention；
Fig. 2 is the film paper capacitor potential divider arrangement structural schematic diagram according to embodiment of the present invention；
Fig. 3 is the hermetic terminal and remote end module annexation figure according to embodiment of the present invention.
Specific embodiment
Exemplary embodiments of the present invention are introduced referring now to the drawings, however, the present invention can use many different shapes
Formula is implemented, and is not limited to the embodiment described herein, and to provide these embodiments be at large and fully disclose
The present invention, and the scope of the present invention is sufficiently conveyed to person of ordinary skill in the field.Show for what is be illustrated in the accompanying drawings
Term in example property embodiment is not limitation of the invention.In the accompanying drawings, identical cells/elements use identical attached
Icon note.
Unless otherwise indicated, term (including scientific and technical terminology) used herein has person of ordinary skill in the field
It is common to understand meaning.Further it will be understood that with the term that usually used dictionary limits, should be understood as and its
The context of related fields has consistent meaning, and is not construed as Utopian or too formal meaning.
Fig. 1 is the isolation circuit breakers structural schematic diagram according to the built-in voltage mutual inductor of embodiment of the present invention.Such as Fig. 1 institute
Show, a kind of isolation circuit breakers 100 of in-built electrical minor voltage transformer of embodiment of the present invention, comprising: arc-chutes casing
101, spacer flanger 102, epoxy resin cylinder 103, film paper capacitor divider 104, support casing 109, insulated pull rod 108, support
Signal wire 105, support sleeve bottom flange 110, hermetic terminal 111, remote end module 107, optical fiber 112, merging are single in casing wall
Member 113, in which: arc-chutes casing 101 and support casing 109 are connected to 102 two sides of spacer flanger；Insulated pull rod 108 is set
Set in arc-chutes casing 101 and support the axle center of casing 109；Casing 109 is supported to set with epoxy resin cylinder 103 for coaxial direction
It sets, inner cylinder is epoxy resin cylinder 103, and outer cylinder is to support casing 109.Film paper capacitor divider 104 is fixed on coaxial support set
Between pipe 109 and epoxy resin cylinder 103.The output signal of film paper capacitor divider 104 utilizes signal wire 105 in support casing wall
By supporting the hermetic terminal 111 on 109 flange in the bottom 110 of casing to export, output to hermetic terminal 111 and remote end module 107
Between the parallel circuit established.Remote end module 107 outputs signal to conjunction via the transmission film paper capacitor divider 104 of optical fiber 112
And unit 113.
Preferably, as shown in Figure 1, isolation circuit breakers 100 proposed by the invention, the internal diameter of the barrel of outer cylinder is according to film paper
The volume of capacitive divider 104 is adjusted.The barrel internal diameter and septum primum detachment of the epoxy resin cylinder 103 of isolation circuit breakers 100
Road device supports the barrel internal diameter of casing identical, is shown by analysis of electric field, and isolation circuit breakers 100 simultaneously have not been changed support casing 109
Internal insulation system.The barrel internal diameter of casing 109 is supported to be adjusted according to the volume of film paper capacitor divider 104, it is maximum
The spacing of the shortening isolation circuit breakers 100 and film paper capacitor divider 104 of limit, reduces the occupied area of equipment.
Preferably, as shown in Figure 1, isolation circuit breakers 100 proposed by the invention, the capacitor of film paper capacitor divider 104
Value can be adjusted, and film paper capacitor divider 104 is 4 strings, evenly and symmetrically be distributed between coaxial inner cylinder and outer cylinder.It is preferred that
The connection relationship of ground, 4 string Paper-film capacitors and hermetic terminal is (Fig. 1 is not shown, and is detailed in Fig. 3): 4 string film paper capacitor divider warps
It is connected by signal wire 105 in support casing wall with 4 hermetic terminals 111 on 109 flange in the bottom 110 of casing are supported, by it
In 1 hermetic terminal be set as primary seal terminal, and remaining 3 hermetic terminal is connected respectively to primary seal terminal.Primary seal
Parallel circuit is established between terminal and remote end module 107.By primary seal terminal by the output signal of film paper capacitor divider 104
It is transferred to remote end module 107.
Preferably, as shown in Figure 1, isolation circuit breakers 100 proposed by the invention, between coaxial inner cylinder and outer cylinder, with
And the SF of uniform pressure is filled in inner cylinder6Gas, SF6Gas pressure is identical as gas pressure in arc-chutes casing.The present invention proposes
Embodiment be filled with SF in the space where film paper capacitor divider 1046Gas simplifies the mounting process of equipment, together
When also avoid inner cylinder epoxy resin cylinder 103 and bear inside and outside gas differential pressure.
Preferably, as shown in Figure 1, isolation circuit breakers 100 proposed by the invention, pass through between coaxial inner cylinder and outer cylinder
Gas piping connection, and supporting to configure SF outside casing 1096Density meter.Due to SF6The insulation of breaker and arc extinction performance are very
SF is depended in big degree6The purity and density of gas, so, to SF6The monitoring of the purity detecting and density of gas is very heavy
It wants.SF6Density meter has been monitoring effect and protective effect.
Preferably, as shown in Figure 1, isolation circuit breakers 100 proposed by the invention, hermetic terminal 111 and remote end module 107
By supporting casing wall external signal line 106 to establish parallel circuit.
Preferably, as shown in Figure 1, isolation circuit breakers 100 proposed by the invention, support in casing wall signal wire 105 with
Support casing wall external signal line 106 is Shielded Twisted Pair.
Preferably, as shown in Figure 1, isolation circuit breakers 100 proposed by the invention, the mould that remote end module 107 will receive
Quasi- voltage signal is converted to digital signal, and digital signal is transmitted to combining unit 113 via optical fiber 112.
Fig. 2 is the film paper capacitor potential divider arrangement structural schematic diagram according to embodiment of the present invention.As shown in Fig. 2, this hair
The capacitance of the built-in film paper capacitor divider 202 of the isolation circuit breakers of bright embodiment is adjustable, film paper capacitor divider
202 be 4 strings, is uniformly and symmetrically distributed between support casing 201 and epoxy resin cylinder 203.
Fig. 3 is the hermetic terminal and remote end module annexation figure according to embodiment of the present invention.4 string film paper capacitor partial pressures
Device is connected via signal wire in support casing wall with 4 hermetic terminals on sleeve bottom flange are supported, will wherein 1 sealing
Terminal is set as primary seal terminal 401, and remaining 3 hermetic terminal 402, hermetic terminal 403, hermetic terminal 404 are connected to
Primary seal terminal 401.Parallel circuit 406 is established between primary seal terminal 401 and remote end module 405.Pass through primary seal terminal 401
Remote end module 405 is outputed signal to via the output film paper capacitor divider of parallel circuit 406.
A kind of isolation circuit breakers of the in-built electrical minor voltage transformer proposed according to the present invention, implementation proposed by the present invention
Mode integrates two kinds of primary equipments of electronic type voltage transformer and isolation circuit breakers, improves integration of equipments degree, saves
The occupied area of equipment.And the integrated morphology of electronic type voltage transformer proposed by the present invention and isolation circuit breakers, does not change
Former isolation circuit breakers support the insulation system of inside pipe casing, do not influence internal electric field distribution.In the present solution, the size of capacitance is determined
The volume for having determined film paper capacitor divider supports the internal diameter of casing that can adjust setting according to the volume of film paper capacitor.Electronic type
Voltage transformer generally uses film paper capacitor divider and oil-filled scheme, and embodiments of the present invention are in film paper capacitor divider cloth
SF is filled between emptying6Gas, embodiments of the present invention simplify the mounting process of equipment, while also avoiding internal asphalt mixtures modified by epoxy resin
Rouge cylinder bears inside and outside differential pressure.
The present invention is described by reference to a small amount of embodiment.However, it is known in those skilled in the art, as
Defined by subsidiary Patent right requirement, in addition to the present invention other embodiments disclosed above equally fall in it is of the invention
In range.
Normally, all terms used in the claims are all solved according to them in the common meaning of technical field
It releases, unless in addition clearly being defined wherein.All references " one/described/be somebody's turn to do [device, component etc.] " are all opened ground
At least one example being construed in described device, component etc., unless otherwise expressly specified.Any method disclosed herein
Step need not all be run with disclosed accurate sequence, unless explicitly stated otherwise.
Claims (9)
1. a kind of isolation circuit breakers of in-built electrical minor voltage transformer characterized by comprising arc-chutes casing, intermediate method
Orchid, film paper capacitor divider, supports casing, insulated pull rod, supports signal wire in casing wall, supports casing wall epoxy resin cylinder
External signal line supports sleeve bottom flange, hermetic terminal, remote end module, optical fiber, combining unit, in which:
The arc-chutes casing and the support casing are connected to the spacer flanger two sides；The insulated pull rod setting exists
The arc-chutes casing and the axle center for supporting casing；The support casing is set with the epoxy resin cylinder for coaxial direction
It sets, inner cylinder is the epoxy resin cylinder, and outer cylinder is the support casing；The film paper capacitor divider is fixed on coaxial described
It supports between casing and epoxy resin cylinder；Passed through on the support sleeve bottom flange using signal wire in the support casing wall
The hermetic terminal export the output signal of the film paper capacitor divider, and via the hermetic terminal and the distal end
The output signal is transferred to the remote end module by the parallel circuit established between module；The remote end module is via the light
The output signal of the film paper capacitor divider is transmitted to the combining unit by fibre.
2. the internal diameter of isolation circuit breakers according to claim 1, the barrel of the outer cylinder is divided according to the film paper capacitor
The volume of device is adjusted.
3. the capacitance of isolation circuit breakers according to claim 1, the film paper capacitor divider can be adjusted, the film
Paper capacitor divider is 4 strings, evenly and symmetrically is distributed between the coaxial inner cylinder and outer cylinder.
4. isolation circuit breakers according to claim 1 fill between the coaxial inner cylinder and outer cylinder and in the inner cylinder
Enter the SF of uniform pressure6Gas, the SF6Gas pressure is identical as gas pressure in the arc-chutes casing.
5. isolation circuit breakers according to claim 1 are connected between the coaxial inner cylinder and outer cylinder by gas piping,
And SF is configured outside the support casing6Density meter.
6. isolation circuit breakers according to claim 1, the hermetic terminal and the remote end module are covered by the support
Tube wall external signal line establishes parallel circuit.
7. isolation circuit breakers according to claim 1, in the support casing wall outside signal wire and the support casing wall
Signal wire is Shielded Twisted Pair.
8. isolation circuit breakers according to claim 1, the remote end module is converted to the analog voltage signal received
Digital signal, and the digital signal is transmitted to the combining unit via the optical fiber.
9. isolation circuit breakers according to claim 1, the hermetic terminal quantity is 4, including 1 primary seal terminal,
Remaining 3 hermetic terminal is connect with the primary seal terminal respectively；It is built between the primary seal terminal and the remote end module
Vertical parallel circuit, and the output signal of the film paper capacitor divider is transferred to the distal end mould via the parallel circuit
Block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610537728.7A CN106128866B (en) | 2016-07-08 | 2016-07-08 | A kind of isolation circuit breakers of in-built electrical minor voltage transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610537728.7A CN106128866B (en) | 2016-07-08 | 2016-07-08 | A kind of isolation circuit breakers of in-built electrical minor voltage transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106128866A CN106128866A (en) | 2016-11-16 |
| CN106128866B true CN106128866B (en) | 2019-09-20 |
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ID=57283578
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610537728.7A Active CN106128866B (en) | 2016-07-08 | 2016-07-08 | A kind of isolation circuit breakers of in-built electrical minor voltage transformer |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009121695A1 (en) * | 2008-04-01 | 2009-10-08 | Siemens Aktiengesellschaft | Current transformer assembly and electromechanical switching device |
| CN203150467U (en) * | 2013-03-08 | 2013-08-21 | 扬州市庆源电气成套设备有限公司 | Vacuum arc quenching chamber solid-closure insulating sleeve of vacuum ring net switch device |
| CN103558440A (en) * | 2013-10-22 | 2014-02-05 | 江苏靖江互感器厂有限公司 | Intelligent electronic type voltage transformer |
| CN203911595U (en) * | 2014-06-30 | 2014-10-29 | 中国西电电气股份有限公司 | Intelligent circuit breaker provided with optical current transformer |
| CN105513874A (en) * | 2015-12-07 | 2016-04-20 | 中国电力科学研究院 | Isolation circuit breaker integrated with voltage transformer |
-
2016
- 2016-07-08 CN CN201610537728.7A patent/CN106128866B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009121695A1 (en) * | 2008-04-01 | 2009-10-08 | Siemens Aktiengesellschaft | Current transformer assembly and electromechanical switching device |
| CN203150467U (en) * | 2013-03-08 | 2013-08-21 | 扬州市庆源电气成套设备有限公司 | Vacuum arc quenching chamber solid-closure insulating sleeve of vacuum ring net switch device |
| CN103558440A (en) * | 2013-10-22 | 2014-02-05 | 江苏靖江互感器厂有限公司 | Intelligent electronic type voltage transformer |
| CN203911595U (en) * | 2014-06-30 | 2014-10-29 | 中国西电电气股份有限公司 | Intelligent circuit breaker provided with optical current transformer |
| CN105513874A (en) * | 2015-12-07 | 2016-04-20 | 中国电力科学研究院 | Isolation circuit breaker integrated with voltage transformer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106128866A (en) | 2016-11-16 |
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