CN107689625A - A kind of new depth current-limiting apparatus - Google Patents
A kind of new depth current-limiting apparatus Download PDFInfo
- Publication number
- CN107689625A CN107689625A CN201710985005.8A CN201710985005A CN107689625A CN 107689625 A CN107689625 A CN 107689625A CN 201710985005 A CN201710985005 A CN 201710985005A CN 107689625 A CN107689625 A CN 107689625A
- Authority
- CN
- China
- Prior art keywords
- current
- sleeve pipe
- new depth
- gis housings
- limiting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/02—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess current
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/025—Safety arrangements, e.g. in case of excessive pressure or fire due to electrical defect
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/035—Gas-insulated switchgear
- H02B13/065—Means for detecting or reacting to mechanical or electrical defects
Abstract
The present invention relates to a kind of new depth current-limiting apparatus, including terminal plate, sleeve pipe, GIS housings, current transformer, current-limiting reactor and cable termination, wherein described sleeve pipe is connected and connected with GIS housings, terminal plate is arranged on the top of sleeve pipe, current transformer, current-limiting reactor are arranged in GIS housings, cable termination is arranged on GIS housings, cable termination is electrically connected by current transformer with current-limiting reactor, and current-limiting reactor passes sleeve pipe by circuit and electrically connected with the terminal plate of cannula tip.
Description
Technical field
The present invention relates to technical field of power systems, more particularly, to a kind of new depth current-limiting apparatus.
Background technology
With the development of power network, the quick increase of installed capacity in power grid causes grid short circuit electric current to be skyrocketed through, much
Area has occurred or will occur choosing the situation less than required big rupturing capacity breaker.Current domestic network system is main
Method by installing current-limiting reactor additional from high-impedance transformer or in low-resistance reactance transformer 10kV sides limits 10kV sides short circuit electricity
Stream, but it is all big in the presence of transformation difficulty, floor space, the problem of big is lost.
The content of the invention
The big technological deficiency of floor space existing for the current limiting measures that the present invention provides for solution prior art, there is provided one
The new depth current-limiting apparatus of kind.
To realize above goal of the invention, the technical scheme of use is：
A kind of new depth current-limiting apparatus, including terminal plate, sleeve pipe, GIS housings, current transformer, current-limiting reactor
And cable termination, wherein described sleeve pipe are connected and connected with GIS housings, terminal plate is arranged on the top of sleeve pipe, current transformer,
Current-limiting reactor is arranged in GIS housings, and cable termination is arranged on GIS housings, and cable termination passes through current transformer and limit
Reactor electrical connection is flowed, current-limiting reactor passes sleeve pipe by circuit and electrically connected with the terminal plate of cannula tip.
In such scheme, short circuit current accesses via cable termination, and is detected by current transformer, then detects
The short circuit current arrived carries out current limliting processing by current-limiting reactor, is exported finally by terminal plate.
Compared with prior art, the beneficial effects of the invention are as follows：
Current transformer, the current-limiting reactor of depth current-limiting apparatus provided by the invention are provided in GIS housings, because
This its floor space is smaller, and not by the interference and erosion of external environment, stable performance.
Brief description of the drawings
Fig. 1 is the structural representation of current-limiting apparatus.
Embodiment
Accompanying drawing being given for example only property explanation, it is impossible to be interpreted as the limitation to this patent；
Below in conjunction with drawings and examples, the present invention is further elaborated.
Embodiment 1
As shown in figure 1, a kind of new depth current-limiting apparatus, including base 1, terminal plate 2, sleeve pipe 3, GIS housings 4, electricity
Current transformer 5, current-limiting reactor 6 and cable termination 7, GIS housings 4 are fixed on base 1, are full of certain pressure in GIS housings 4
Sf6 gases, current transformer 5, current-limiting reactor 6 use sf6 gas-insulateds, the bottom of described sleeve pipe 3 and GIS housings 4
Top connects and connection, terminal plate 2 are arranged on the top of sleeve pipe 3, and current transformer 5, current-limiting reactor 6 are arranged on GIS housings 4
Interior, cable termination 7 is arranged on GIS housings 4, and cable termination 7 is electrically connected by current transformer 5 with current-limiting reactor 6, current limliting
Reactor 6 passes sleeve pipe 3 by circuit and electrically connected with the terminal plate 2 on the top of sleeve pipe 3.
In such scheme, short circuit current accesses via cable termination 7, and is detected by current transformer 5, Ran Houjian
The short circuit current measured carries out current limliting processing by current-limiting reactor 6, is exported finally by terminal plate 2.
In specific implementation process, 2 independent gas are separated into by airtight disc insulator 8 in the GIS housings 4
Room, current transformer 5, current-limiting reactor 6 are separately positioned in 2 independent air chambers in GIS housings 4, sleeve pipe 3 and GIS housings 4
Connectivity part be separated by airtight disc insulator 8 in sleeve pipe 3 and form 1 independent air chamber.Described 3 independent
Gas density relay and inflation/deflation Self-sealing valve are provided with air chamber, gas density relay is electrically connected with inflation/deflation Self-sealing valve
Connect, the density in gas density relay detection air chamber, then by controlling whether the unlatching of inflation/deflation Self-sealing valve controls pair
The charge and discharge gas disposal of air chamber, the maintenance work (such as gas sample or inflation) of so each air chamber is all without the other air chambers of influence.
Air gauge 9 is provided with 3 independent air chambers, when the air pressure in air chamber is less than setting atmospheric pressure value, air gauge 9 exports
Alarm contact point signal, system background alarm.
In the present embodiment, the cable termination 7 is the cable termination 7 of plug-in type.The material of described sleeve pipe 3 is ceramics.Institute
The material for stating GIS housings 4 is aluminium alloy.
Obviously, the above embodiment of the present invention is only intended to clearly illustrate example of the present invention, and is not pair
The restriction of embodiments of the present invention.For those of ordinary skill in the field, may be used also on the basis of the above description
To make other changes in different forms.There is no necessity and possibility to exhaust all the enbodiments.It is all this
All any modification, equivalent and improvement made within the spirit and principle of invention etc., should be included in the claims in the present invention
Protection domain within.
Claims (8)
- A kind of 1. new depth current-limiting apparatus, it is characterised in that：Including terminal plate, sleeve pipe, GIS housings, current transformer, limit Stream reactor and cable termination, wherein described sleeve pipe are connected and connected with GIS housings, and terminal plate is arranged on the top of sleeve pipe, electricity Current transformer, current-limiting reactor are arranged in GIS housings, and cable termination is arranged on GIS housings, and cable termination is mutual by electric current Sensor electrically connects with current-limiting reactor, and current-limiting reactor passes sleeve pipe by circuit and electrically connected with the terminal plate of cannula tip.
- 2. new depth current-limiting apparatus according to claim 1, it is characterised in that：The GIS housings are fixed on a bottom On seat, the bottom of described sleeve pipe is connected with the top of GIS housings.
- 3. new depth current-limiting apparatus according to claim 1, it is characterised in that：By airtight in the GIS housings Disc insulator is separated into 2 independent air chambers, and current transformer, current-limiting reactor are separately positioned on 2 in GIS housings solely In vertical air chamber, the connectivity part of sleeve pipe and GIS housings is separated 1 independence of formation in sleeve pipe by airtight disc insulator Air chamber.
- 4. new depth current-limiting apparatus according to claim 3, it is characterised in that：In 3 independent air chambers Gas density relay and inflation/deflation Self-sealing valve are provided with, gas density relay electrically connects with inflation/deflation Self-sealing valve.
- 5. new depth current-limiting apparatus according to claim 4, it is characterised in that：In 3 independent air chambers It is provided with air gauge.
- 6. new depth current-limiting apparatus according to claims 1 to 5, it is characterised in that：The cable termination is grafting The cable termination of formula.
- 7. new depth current-limiting apparatus according to claims 1 to 5, it is characterised in that：The material of described sleeve pipe is pottery Porcelain.
- 8. new depth current-limiting apparatus according to claims 1 to 5, it is characterised in that：The material of the GIS housings is Aluminium alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710985005.8A CN107689625A (en) | 2017-10-20 | 2017-10-20 | A kind of new depth current-limiting apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710985005.8A CN107689625A (en) | 2017-10-20 | 2017-10-20 | A kind of new depth current-limiting apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107689625A true CN107689625A (en) | 2018-02-13 |
Family
ID=61153947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710985005.8A Pending CN107689625A (en) | 2017-10-20 | 2017-10-20 | A kind of new depth current-limiting apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107689625A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110429574A (en) * | 2019-08-23 | 2019-11-08 | 国网电力科学研究院武汉南瑞有限责任公司 | GIS formula transformer impedance device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4967307A (en) * | 1988-01-11 | 1990-10-30 | Hitachi, Ltd. | Gas insulated switchgear apparatus |
| CN201466559U (en) * | 2009-08-07 | 2010-05-12 | 国网电力科学研究院武汉南瑞有限责任公司 | Gas-insulated high-capacity combined switch device of metal case |
| WO2012081264A1 (en) * | 2010-12-17 | 2012-06-21 | 三菱電機株式会社 | Gas insulated switching apparatus |
| US20150318688A1 (en) * | 2013-01-09 | 2015-11-05 | Shaogui AL | Current limiting device, current limiter and current limiting system for power grid |
| CN208369209U (en) * | 2017-10-20 | 2019-01-11 | 广东电网有限责任公司中山供电局 | A kind of novel depth current-limiting apparatus |
-
2017
- 2017-10-20 CN CN201710985005.8A patent/CN107689625A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4967307A (en) * | 1988-01-11 | 1990-10-30 | Hitachi, Ltd. | Gas insulated switchgear apparatus |
| CN201466559U (en) * | 2009-08-07 | 2010-05-12 | 国网电力科学研究院武汉南瑞有限责任公司 | Gas-insulated high-capacity combined switch device of metal case |
| WO2012081264A1 (en) * | 2010-12-17 | 2012-06-21 | 三菱電機株式会社 | Gas insulated switching apparatus |
| US20150318688A1 (en) * | 2013-01-09 | 2015-11-05 | Shaogui AL | Current limiting device, current limiter and current limiting system for power grid |
| CN208369209U (en) * | 2017-10-20 | 2019-01-11 | 广东电网有限责任公司中山供电局 | A kind of novel depth current-limiting apparatus |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110429574A (en) * | 2019-08-23 | 2019-11-08 | 国网电力科学研究院武汉南瑞有限责任公司 | GIS formula transformer impedance device |
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