CN109244924A - A kind of gas insulated combined electrical equipment of band isolation on-load switch - Google Patents
A kind of gas insulated combined electrical equipment of band isolation on-load switch Download PDFInfo
- Publication number
- CN109244924A CN109244924A CN201811098497.XA CN201811098497A CN109244924A CN 109244924 A CN109244924 A CN 109244924A CN 201811098497 A CN201811098497 A CN 201811098497A CN 109244924 A CN109244924 A CN 109244924A
- Authority
- CN
- China
- Prior art keywords
- breaker
- load switch
- isolation
- current
- electrical equipment
- 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
- 238000002955 isolation Methods 0.000 title claims abstract description 25
- 239000000463 material Substances 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000009413 insulation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
-
- 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
- H02B13/075—Earthing arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Gas-Insulated Switchgears (AREA)
Abstract
A kind of gas insulated combined electrical equipment of band isolation on-load switch, it overcomes prior art disconnecting switch and primarily serves the effect of being dielectrically separated from, breaker should open and close nominal load current and open and close rated short circuit current again, requirement to contact of breaker material is harsh, lead to the problem that gas insulated combined electrical equipment is less economical, be characterized in breaker with on-load switch be isolated directly be connected in series, earthing switch is connected in parallel on the outside of isolation on-load switch, current transformer is connected in series in the outside of isolation on-load switch, when work, breaker is responsible for cut-offfing failed shorted electric current, cut-offfing for normal duty electric current is undertaken by isolation on-load switch, beneficial effect is that isolation on-load switch is used cooperatively with breaker, instead of the single function of realizing folding rated current and rated short circuit current using breaker, it overcomes single using breaker folding volume Constant current and rated short circuit current improve the economic performance of gas insulated combined electrical equipment to the problem of contact of breaker material requirements harshness.
Description
Technical field
The invention belongs to high voltage electrical apparatus technical field, in particular to a kind of gas-insulated of band isolation on-load switch combines electricity
Device.
Background technique
Gas insulated combined electrical equipment is the important switchgear of electric system, is played in entire electrical power trans mission/distribution system very heavy
The effect wanted.Mainly there are the appliance components such as breaker, disconnecting switch, earthing switch in existing gas insulated combined electrical equipment, breaks
Road device is mainly used for opening and closing rated current and nominal short-circuit fault current, disconnecting switch primarily serve the effect of being dielectrically separated from, do not have
The ability for cut-offfing nominal load current, in certain specific occasions, such as when folding capacitor group, since breaker should open and close
Nominal load current opens and closes rated short circuit current again, and the contact material and folding when breaker folding rated current are specified
Contact material when short circuit current is often contradictory, for this purpose, proposing extremely harsh want to the contact material of breaker
It asks, causes the waste in design, it is very poor to result in gas insulated combined electrical equipment economy.
Summary of the invention
Problem to be solved by this invention is that disconnecting switch in existing gas insulated combined electrical equipment is overcome not open and close specified electricity
The defect of stream provides rated current folding is realized by on-load switch and breaker is isolated respectively with rated short circuit current folding one
Kind is for the gas insulated combined electrical equipment with isolation on-load switch.
The technical solution adopted by the present invention includes breaker, earthing switch and current transformer, the breaker be isolated
On-load switch is directly connected in series, and is connected in parallel earthing switch on the outside of isolation on-load switch, in the outer of isolation on-load switch
Side is connected in series with current transformer.
The present invention replaces the disconnecting switch in traditional gas insulation in combined electric appliance with isolation on-load switch, breaking when work
Device is responsible for cut-offfing failed shorted electric current, is undertaken to cut-offfing for normal duty electric current by isolation on-load switch.
Compared with prior art, the beneficial effects of the invention are as follows use isolation on-load switches is used cooperatively with breaker, generation
The single function of realizing folding rated current and rated short circuit current using breaker has been replaced, raw-gas insulation combined electric is overcome
Single use breaker should open and close nominal load current and open and close rated short circuit current again in device, to contact of breaker material
It is required that harsh problem, when work, breaker is responsible for cut-offfing failed shorted electric current, negative by being isolated to cut-offfing for normal duty electric current
Lotus switch undertakes, and improves the economic performance of gas insulated combined electrical equipment.
Detailed description of the invention
Fig. 1 is the electrical block diagram of prior art gas insulated combined electrical equipment；
Fig. 2 is the electrical block diagram of gas insulated combined electrical equipment of the present invention with isolation on-load switch.
In figure:
1. breaker,
2. earthing switch,
3. circuit current mutual inductor,
4. disconnecting switch,
5. isolation load is opened.
Specific embodiment
As shown in the picture, the technical solution adopted by the present invention includes breaker 1, earthing switch 2 and current transformer 3, institute
State breaker 1 be isolated on-load switch 5 directly be connected in series, isolation on-load switch 5 outside be connected in parallel earthing switch 2,
Current transformer 3 is connected in series in the outside of isolation on-load switch 5.
The present invention replaces the disconnecting switch 4 in prior art gas insulated combined electrical equipment, work using isolation on-load switch 5
When, breaker 1 is responsible for cut-offfing failed shorted electric current, is undertaken to cut-offfing for normal duty electric current by isolation on-load switch 5, thus real
Show rated current folding and realize the function of folding by on-load switch 5 and breaker 1 is isolated respectively with rated short circuit current folding,
It overcomes single use breaker 1 in raw-gas insulation in combined electric appliance and opens and closes rated current and rated short circuit current, overcome original
It is single in gas insulated combined electrical equipment that rated current and rated short circuit current are opened and closed to contact of breaker material using breaker
It is required that harsh problem, improves the economic performance of gas insulated combined electrical equipment.
Claims (2)
1. a kind of gas insulated combined electrical equipment of band isolation on-load switch, including breaker (1), earthing switch (2) and electric current are mutual
Sensor (3), which is characterized in that the breaker (1) be isolated on-load switch (5) directly be connected in series, isolation on-load switch
(5) it is connected in parallel earthing switch (2) on the outside of, current transformer (3) are connected in series in the outside of isolation on-load switch (5).
2. a kind of gas insulated combined electrical equipment of band isolation on-load switch according to claim 1 is it is characterized in that, described
Breaker (1) is responsible for cut-offfing failed shorted electric current, is undertaken to cut-offfing for normal duty electric current by isolation on-load switch (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811098497.XA CN109244924A (en) | 2018-09-20 | 2018-09-20 | A kind of gas insulated combined electrical equipment of band isolation on-load switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811098497.XA CN109244924A (en) | 2018-09-20 | 2018-09-20 | A kind of gas insulated combined electrical equipment of band isolation on-load switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109244924A true CN109244924A (en) | 2019-01-18 |
Family
ID=65059103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811098497.XA Pending CN109244924A (en) | 2018-09-20 | 2018-09-20 | A kind of gas insulated combined electrical equipment of band isolation on-load switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109244924A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113064033A (en) * | 2021-03-29 | 2021-07-02 | 广东电网有限责任公司 | Gas insulated switchgear and fault monitoring device thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202423946U (en) * | 2011-12-23 | 2012-09-05 | 青岛特锐德电气股份有限公司 | Combined switch electrical appliance air chamber |
| CN103414168A (en) * | 2013-06-21 | 2013-11-27 | 国家电网公司 | Vacuum circuit breaker type ring main unit |
| CN104319678A (en) * | 2014-11-12 | 2015-01-28 | 江苏东源电器集团股份有限公司 | Intelligent solid insulation composite apparatus looped network equipment |
| CN209571763U (en) * | 2018-09-20 | 2019-11-01 | 沈阳华德海泰电器有限公司 | A kind of gas insulated combined electrical equipment of band isolation on-load switch |
-
2018
- 2018-09-20 CN CN201811098497.XA patent/CN109244924A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202423946U (en) * | 2011-12-23 | 2012-09-05 | 青岛特锐德电气股份有限公司 | Combined switch electrical appliance air chamber |
| CN103414168A (en) * | 2013-06-21 | 2013-11-27 | 国家电网公司 | Vacuum circuit breaker type ring main unit |
| CN104319678A (en) * | 2014-11-12 | 2015-01-28 | 江苏东源电器集团股份有限公司 | Intelligent solid insulation composite apparatus looped network equipment |
| CN209571763U (en) * | 2018-09-20 | 2019-11-01 | 沈阳华德海泰电器有限公司 | A kind of gas insulated combined electrical equipment of band isolation on-load switch |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113064033A (en) * | 2021-03-29 | 2021-07-02 | 广东电网有限责任公司 | Gas insulated switchgear and fault monitoring device thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190118 |
|
| WD01 | Invention patent application deemed withdrawn after publication |