CN106129887A - GIS prepared separation, outside line enlargement method and GIS device - Google Patents
GIS prepared separation, outside line enlargement method and GIS device Download PDFInfo
- Publication number
- CN106129887A CN106129887A CN201610509258.3A CN201610509258A CN106129887A CN 106129887 A CN106129887 A CN 106129887A CN 201610509258 A CN201610509258 A CN 201610509258A CN 106129887 A CN106129887 A CN 106129887A
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- China
- Prior art keywords
- enlarging
- disconnecting switch
- air chamber
- bus
- gis
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Classifications
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- 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
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/20—Bus-bar or other wiring layouts, e.g. in cubicles, in switchyards
Abstract
The present invention relates to GIS prepared separation, outside line enlargement method and GIS device, this GIS device is internally provided with GIS prepared separation, this prepared separation includes the first bus, the second bus, the first disconnecting switch and the second disconnecting switch, enlarging disconnecting switch and enlarging interface, first bus connects one end of the first disconnecting switch, second bus connects one end of the second disconnecting switch, the other end of the first disconnecting switch and the second disconnecting switch connects by connecting conductor, one end of enlarging disconnecting switch connects above-mentioned connection conductor, and the other end connects enlarging interface；Above-mentioned seven parts are separately positioned in seven independent air chambers.When construction, reducing the enlarging air pressure of disconnecting switch place air chamber a to setting value, the air pressure controlled in the air chamber of enlarging interface place is atmospheric pressure, then carries out the operation of follow-up enlarging outside line.Which is it can be avoided that have a power failure on a large scale, it is ensured that the enlarging overall security of work, reliability and convenience.
Description
Technical field
The present invention relates to GIS applied technical field or power transmission technology field, be specifically related to GIS prepared separation, outer
Portion's circuit enlargement method and GIS device.
Background technology
In the GIS engineering that some are larger, for there is no individually the breaker interval of the plan of putting into operation, for reducing equipment
Long-term do not put into operation brought security risk and reduction first-phase project budget, when Substation Design, typically when downpayment construction
The main bus-bar isolation earthing switch at this interval the most in place, and the equipment component at this interval, such as chopper, circuit isolation ground connection are opened
Close and current transformer etc. is then reserved as distant view engineering, and this kind of interval is commonly referred to as " chopper reserves expansion spacing ".
As it is shown in figure 1, the primary connection circuit schematic diagram used at present for us, wherein, the structure of prepared separation such as schemes institute
Showing, wherein, 1M is 1M main bus-bar, and 2M is 2M main bus-bar, and DS/ES1 is 1M main bus-bar three-station isolating/grounding switch, and DS2 is 2M
Main bus-bar disconnecting switch.As in figure 2 it is shown, be the structural representation of this prepared separation, including 1M main bus-bar 1., 2M main bus-bar 2.,
3., main bus-bar isolation earthing switch is 4. for main bus-bar disconnecting switch.When this existing prepared separation need to put into operation, be to prepared separation
Field conduct enlarging mating operation.For conventional prepared separation design structure, owing to the main bus-bar of charging operation connects with enlarging
Only electrical isolation is carried out by main bus-bar disconnecting switch between Kou, in the case, for guaranteeing the safety of operation equipment, docking
Job demand is carried out when main bus-bar has a power failure completely (being equal to power failure of entirely standing), thus will affect whole transformer station work
The power supply plan of journey and associate power system, causes and has a power failure on a large scale, reduce enlarging the overall security of work, reliability and
Convenience, it is impossible to meet the requirement to connection function that in Practical Project, reserved expansion spacing do not had a power failure.
And, existing prepared separation there is problems:
One, the safety issue of on-the-spot enlarging operating personnel.During on-the-spot enlarging construction, butt-joint operation personnel unavoidably want
Activity around docking port, but owing to enlarging construction is carried out in the case of main equipment is properly functioning, docking oral area stops gas
There is huge draught head in type insulator both sides, how to guarantee that operating personnel's safety work under this operating mode is one and needs solution badly
Problem.
Two, prepared separation On-Site Testing affects problem to downpayment equipment.After enlarging mating operation, it is right to need
Enlargement equipment carries out On-Site Testing, how to have implemented enlarging equipment on the premise of not affecting first-phase project operation
Whole pressure test is a problem needing solution badly.
Three, prepared separation when enlarging for the reply problem of burst accident.
Summary of the invention
It is an object of the invention to provide a kind of GIS prepared separation, reality cannot be met in order to solve current GIS prepared separation
Do not have a power failure in the engineering of border the problem docking functional requirement to reserved expansion spacing.Present invention simultaneously provides a kind of GIS prepared separation
Outside line enlargement method and a kind of GIS device.
For achieving the above object, the solution of the present invention includes a kind of GIS prepared separation, including the first bus, the second bus,
First disconnecting switch and the second disconnecting switch, described first bus connects one end of described first disconnecting switch, and described second is female
Line connects another of one end of described second disconnecting switch, the other end of described first disconnecting switch and described second disconnecting switch
Holding by connecting conductor connection, described GIS prepared separation also includes enlarging disconnecting switch and for outside enlarging circuit even
The enlarging interface connect, one end of described enlarging disconnecting switch connects described connection conductor, and the other end connects described enlarging interface；
Described first bus is arranged in the first air chamber, and described second bus is arranged in the second air chamber, and described first disconnecting switch sets
Putting in the 3rd air chamber, described second disconnecting switch is arranged in the 4th air chamber, and described connection conductor is arranged in the 5th air chamber,
Described enlarging disconnecting switch is arranged in the 6th air chamber, and described enlarging interface is arranged in the 7th air chamber.
Connected by gas-stopping type disc insulator between described 6th air chamber and the 7th air chamber.
The moving contact of described enlarging disconnecting switch connects described connection conductor, and static contact connects described enlarging interface.
Described 7th air chamber includes housing, and the capping detachably assembled with housing.
A kind of GIS device, including GIS prepared separation, described GIS prepared separation include the first bus, the second bus, first
Disconnecting switch and the second disconnecting switch, described first bus connects one end of described first disconnecting switch, and described second bus is even
Connecing one end of described second disconnecting switch, the other end of described first disconnecting switch and the other end of described second disconnecting switch lead to
Crossing connection conductor to connect, described GIS prepared separation also includes enlarging disconnecting switch and for extending connection with outside
Enlarging interface, one end of described enlarging disconnecting switch connects described connection conductor, and the other end connects described enlarging interface；Described
First bus is arranged in the first air chamber, and described second bus is arranged in the second air chamber, and described first disconnecting switch is arranged on
In 3rd air chamber, described second disconnecting switch is arranged in the 4th air chamber, and described connection conductor is arranged in the 5th air chamber, described
Enlarging disconnecting switch is arranged in the 6th air chamber, and described enlarging interface is arranged in the 7th air chamber.
Connected by gas-stopping type disc insulator between described 6th air chamber and the 7th air chamber.
The moving contact of described enlarging disconnecting switch connects described connection conductor, and static contact connects described enlarging interface.
Described 7th air chamber includes housing, and the capping detachably assembled with housing.
The outside line enlargement method of a kind of GIS prepared separation, when construction, reduces enlarging disconnecting switch place air chamber
Air pressure to a setting value, the air pressure controlled in the air chamber of enlarging interface place is atmospheric pressure, then carries out outside follow-up enlarging
The operation of circuit.
In the prepared separation that the present invention provides, between main bus-bar and the enlarging interface of charging operation, main bus-bar is not only had to isolate
Switch (the first disconnecting switch and the second disconnecting switch) carries out electrical isolation, and also enlarging disconnecting switch carry out electrically every
From, in the case, carry out power circuit enlarging time, enlarging disconnecting switch is off-state, and due to enlarging with every
Leaving the electrical isolation effect of pass, mating operation can be carried out under main bus-bar is properly functioning, it is not necessary to controls main bus-bar and stops completely
Electricity, thus without affecting whole substation project and the power supply plan of associate power system, it is to avoid has a power failure on a large scale, it is ensured that
The enlarging overall security of work, reliability and convenience, meet the docking that do not has a power failure reserved expansion spacing in Practical Project
The requirement of function.And, the air chamber connecting conductor corresponding is transition air chamber, it is possible to rise in reserved extension project in first-phase project
Transition buffer effect, for prepared separation enlarging mating operation in contingent burst accident there is good reply energy
Power.
And, when carrying out outside enlarging, by the gas pressure in the 6th air chamber is down to certain value, by the 7th air chamber
Put as atmospheric pressure, reduce the pressure reduction of insulator both sides between the 6th air chamber and the 7th air chamber with this, it is ensured that operating personnel exists
Safety work under this operating mode.
It addition, by arranging enlarging disconnecting switch, test voltage is applied by extending circuit side, and trial stretch is to enlarging
Stopping with the static contact of disconnecting switch, enlarging equipment is completely within the scope of On-Site Testing, the dress to enlarging work
Aglycon amount and insulating properties are fully checked, it is ensured that the reliability of interval power transmission, are not affecting the premise that first-phase project is run
Under enlarging equipment is implemented complete pressure test.
Accompanying drawing explanation
Fig. 1 is existing primary connection circuit schematic diagram；
Fig. 2 is the structural representation of existing prepared separation；
Fig. 3 is the circuit diagram of the prepared separation that the present invention provides；
Fig. 4 is the structural representation of the prepared separation that the present invention provides；
Fig. 5 is the circuit diagram of the GIS device of prepared separation based on present invention offer；
Fig. 6 is the circuit diagram of a kind of embodiment of complete interval after enlarging；
Fig. 7 is the structural representation of a kind of embodiment of complete interval after enlarging.
Detailed description of the invention
The present invention will be further described in detail below in conjunction with the accompanying drawings.
The present invention provide GIS prepared separation be capable of main bus-bar do not have a power failure safety enlarging work.As it is shown on figure 3, should
1. GIS prepared separation includes 1M main bus-bar, 2M main bus-bar 2., main bus-bar disconnecting switch DS2 3., main bus-bar isolation earthing switch
5. 4. DS/ES1, connect conductor, and by disconnecting switch DS3 6., 7. (the present embodiment with enlarging mating interface is enlarging interface in enlarging
Example).
In this GIS prepared separation circuit, 4. 1. 1M main bus-bar connect above-mentioned by main bus-bar isolation earthing switch DS/ES1
Connecting conductor 5., 5. 2. 2M main bus-bar the most also connect above-mentioned connection conductor by main bus-bar disconnecting switch DS2, i.e. main bus-bar isolation
5. 3. switch DS2 be all connected with above-mentioned connection conductor with isolation earthing switch DS/ES1 one end 4., and connect conductor and 5. pass through
7. 6. enlarging disconnecting switch DS3 connect enlarging mating interface.
Seven ingredients in this GIS prepared separation: 1M main bus-bar 1., 2M main bus-bar 2., main bus-bar disconnecting switch DS2
3., 5. 4. main bus-bar isolation earthing switch DS/ES1, connect conductor, and by disconnecting switch DS3 6., 7. enlarging mating interface divides in enlarging
Not being arranged in seven independent air chambers, this most named first air chamber of seven air chambers is to the 7th air chamber, then, 1M main bus-bar is 1.
Being arranged in the first air chamber, 2. 2M main bus-bar is arranged in the second air chamber, and 3. main bus-bar disconnecting switch DS2 is arranged on the 4th air chamber
In, 4. main bus-bar isolation earthing switch DS/ES1 is arranged in the 3rd air chamber, connects conductor and is 5. arranged in the 5th air chamber, enlarging
6. being arranged in the 6th air chamber by disconnecting switch DS3,7. enlarging mating interface is arranged in the 7th air chamber.In the present embodiment, this
In seven independent air chambers, between any two adjacent air cells, it is provided with only gas type insulator, and, with only gas type disc insulator
As a example by, such as: between the 6th air chamber and the 7th air chamber, be provided with only gas type disc insulator.It addition, under normal circumstances, this
Seven air chambers are all filled with SF6 gas.
And, in the present embodiment, connecting conductor and 5. connect enlarging disconnecting switch DS3 moving contact 6., enlarging is isolated
7. switch DS3 static contact 6. connects enlarging mating interface.Certainly, as other embodiment, connect conductor and 5. can also connect
Connecing enlarging disconnecting switch DS3 static contact 6., enlarging uses disconnecting switch DS3 moving contact 6. to connect enlarging mating interface 7..
Fig. 4 show the structure of this prepared separation.Above seven ingredients are installed in place with first-phase project, wherein, and 1M
Main bus-bar is 1. and 2M main bus-bar is 2. for connecting other intervals of GIS device, to constitute a GIS device.Main bus-bar is kept apart
Close DS2 to be 3. 4. used for main bus-bar isolation earthing switch DS/ES1 with enlarging mating interface, 7. main bus-bar is carried out electrical isolation.
The 5th air chamber connecting conductor 5. corresponding is transition air chamber, plays transition buffer effect in first-phase project with reserved extension project,
And when enlarging docking and on-the-spot pressure work have an accident, this air chamber can play buffer failure coverage, it is ensured that band
The effect that electricity equipment is properly functioning.The air chamber of enlarging disconnecting switch DS3 6. correspondence also not only is able in enlarging mating operation
Play electrical isolation effect, but also transition buffer effect can be played.The enlarging of prepared separation is docked at enlarging mating interface
7. place is carried out.
This GIS prepared separation uses brand-new product structure, 1M main bus-bar 1. with 2M main bus-bar 2. with enlarging mating interface
7. all can realize being completely independent from electric property and air chamber divide, connect conductor 5., enlarging disconnecting switch DS3 6. and enlarging
The setting of the air chamber that 7. mating interface is located, has good for contingent burst accident in prepared separation enlarging mating operation
Good adaptibility to response.
Fig. 5 is the circuit diagram of GIS device based on this prepared separation.
In Practical Project runs, 1. 1M main bus-bar the most persistently remains powered on state with 2M main bus-bar, at the 3rd air chamber and
In 4th air chamber, 4. 3. main bus-bar disconnecting switch DS2 be off, for this with main bus-bar isolation earthing switch DS/ES1
For any one in two disconnecting switch, superposed static contact isolation switch and main bus-bar electrical communication, it is in band
Electricity condition, the moving contact being positioned at bottom is zero potential.Further, in the 3rd air chamber and the 4th air chamber, it is filled with rated designs pressure
SF6 gas, it is achieved the electric insulation between dynamic and static fracture, thus in the electrical isolation realized between main bus-bar.
When on-the-spot enlarging mating operation starts, first it is ensured that 3. main bus-bar disconnecting switch DS2 isolates ground connection with main bus-bar
4. switch DS/ES1 is off, to completely cut off the electrical connection between main bus-bar and enlarging interface, afterwards by the 6th air chamber
In gas pressure drop half, the 7th air chamber is put into atmospheric pressure, reduces insulator with thisBoth sides pressure reduction, insulatorFor
Insulator between 6th air chamber and the 7th air chamber.
When implementing docking, capping and the housing of the 7th air chamber need to be removed in advance, and mating operation is at insulatorElectrical connection
Portion is carried out, owing to the 6th air chamber air pressure has been reduced to half pressure, can be largely avoided butting conductors with insulatorIt is electrically connected
When connecing cooperation, because of insulatorUnbalance stress causes insulator to rupture and the probability of gas leakage, the most also to operating personnel
Personal safety provide a favorable guarantee.
In the present embodiment, the complete interval after a kind of enlarging, as shown in Figure 6 and Figure 7, wherein, the line of enlarging are given
Road include successively chopper GCB 8., Current Transmit, line side three-station isolating grounding switch DS/ES4 9. and rapid grounding
Switch H-ES, chopper GCB be during 8. summation current transformer CT is arranged on the 8th air chamber, line side three-station isolating grounding switch
9. DS/ES4 is arranged in the 9th air chamber with high speed grounding switch H-ES, is also equipped with gas-stopping type insulation between the two air chamber
Son.
Needing to carry out enlarging equipment On-Site Testing after enlarging, testing the gas pressure in front 6th air chamber should
Recovering rated designs pressure, 6. enlarging disconnecting switch should be at off-state, and test voltage is connect by the isolation of line side three station
Switch DS/ES4 9. side, ground applies (the lightning shape arrow in Fig. 7 represents the position that test voltage applies), and trial stretch is to enlarging
Stopping with disconnecting switch isolation fracture portion 6., enlarging equipment is completely within the scope of On-Site Testing, to enlarging work
Assembling quality and the insulating properties made fully are checked, it is ensured that the reliability of interval power transmission.
Owing to enlarging mating operation is implemented at the scene, its working environment and construction equipment are the simplest and the crudest, and implementing, enlarging is right
Connect and during on-the-spot pressure work, there is the probability having an accident and (cause product component to damage and existing as butt-joint operation is improper
Field pressure test discharge accident etc.), first have to guarantee the safe operation of the downpayment equipment that puts into operation when a fault occurs, in the case
The setting of the 6th air chamber and the 7th air chamber can well ensure the properly functioning of charging equipment.
When causing damage of components because of butt-joint operation, it occurs at insulatorThe probability of enlarging docking oral area
Relatively big, if insulatorDamaging, enlarging disconnecting switch isolation fracture 6. lost efficacy the most therewith, and now enlarging mating operation should be stopped
Only, for guaranteeing that charging equipment is properly functioning, dismountable insulator(enlarging disconnecting switch static contact 6. is torn open in the lump in assembling
Remove), and use the 7th air chamber capping that 7. enlarging mating interface is blocked, wait that component implements enlarging work after repairing again
Make.
For the discharge accident caused because of On-Site Testing, its occur the 6th air chamber and the 8th air chamber probability relatively
(during pressure test there is bigger potential difference in enlarging disconnecting switch isolation fracture portion 6., and the 8th air chamber is docking air chamber, can greatly
Docking foreign body can be had to residue in air chamber).As accident occurs at the 6th air chamber, then the electric arc analyte produced that discharges will cover whole
Individual air chamber inwall, including the only gas insulator of air chamber both sides, now overall pulling down answered by the 6th air chamber, and uses the 7th air chamber capping
5th air chamber port is blocked.
As accident occurs at the 9th air chamber, then can process according to the scheme of damage of components during butt-joint operation, wait
Component implements enlarging operation after repairing again.
It addition, in Fig. 2,4 and 7,1M main bus-bar is 1. with main bus-bar disconnecting switch DS2 3. in enlarging by disconnecting switch DS3 5.
Side, 2M main bus-bar 2. with main bus-bar isolation earthing switch DS/ES1 4. at enlarging disconnecting switch DS3 opposite side 5., this
It is merely meant that a kind of position relationship, be not offered as 1M main bus-bar and be 1. 3. connected with main bus-bar disconnecting switch DS2,2M main bus-bar 2. and
4. main bus-bar isolation earthing switch DS/ES1 connects.
In above-described embodiment, enlarging disconnecting switch and enlarging interface are arranged in different air chambers, by regulating respectively
Air pressure in two air chambers, it is possible to the insulator both sides reduced between the two air chamber exist huge draught head, this mode
Ensure that the safety work of operating personnel when construction, certainly, this is the embodiment of a kind of optimization, as other reality
Execute example, enlarging disconnecting switch and enlarging interface can also be arranged in same air chamber, the most do not possess above-mentioned technology effect
Really.
In above-described embodiment, GIS prepared separation, when enlarging construction, first reduces enlarging disconnecting switch place air chamber
Air pressure (the i.e. the 6th air chamber) is to a setting value, and the air pressure controlled in enlarging interface place air chamber (the i.e. the 7th air chamber) is atmospheric pressure,
Then the operation of follow-up enlarging outside line is carried out.This construction method based on GIS prepared separation in have seven independent gas
Room, wherein, connect conductor 5., enlarging disconnecting switch DS3 6. with enlarging mating interface be 7. separately positioned in independent air chamber, by
Air chamber in said method air chamber based on enlarging disconnecting switch DS3 6. place and enlarging mating interface 7. place illustrates
, so, the most whether connection conductor is provided separately within an independent air chamber and above-mentioned construction method is not resulted in impact, because of
This, as other embodiment, connect conductor and 5. 6. can also be arranged in same air chamber with enlarging disconnecting switch DS3.
It is presented above specific embodiment, including the circuit structure of a kind of concrete complete interval and going out
Process means etc. required during existing several fault, but, the present invention is not limited to described embodiment.The present invention's is basic
Thinking and inventive point are the structure of above-mentioned prepared separation, without departing from the principles and spirit of the present invention to embodiment party
Change that formula is carried out, revise, replace and modification still falls within protection scope of the present invention.
Claims (9)
1. a GIS prepared separation, including the first bus, the second bus, the first disconnecting switch and the second disconnecting switch, described
One bus connects one end of described first disconnecting switch, and described second bus connects one end of described second disconnecting switch, described
The other end of the first disconnecting switch and the other end of described second disconnecting switch connect by connecting conductor, it is characterised in that institute
State GIS prepared separation and also include enlarging disconnecting switch and for the enlarging interface with outside enlarging connection, described enlarging
Connecting described connection conductor with one end of disconnecting switch, the other end connects described enlarging interface；Described first bus is arranged on
In one air chamber, described second bus is arranged in the second air chamber, and described first disconnecting switch is arranged in the 3rd air chamber, and described
Two disconnecting switch are arranged in the 4th air chamber, and described connection conductor is arranged in the 5th air chamber, and described enlarging disconnecting switch sets
Putting in the 6th air chamber, described enlarging interface is arranged in the 7th air chamber.
GIS prepared separation the most according to claim 1, it is characterised in that logical between described 6th air chamber and the 7th air chamber
Cross gas-stopping type disc insulator to connect.
GIS prepared separation the most according to claim 1, it is characterised in that the moving contact of described enlarging disconnecting switch is even
Connecing described connection conductor, static contact connects described enlarging interface.
GIS prepared separation the most according to claim 1, it is characterised in that described 7th air chamber includes housing, and and shell
The capping that body detachably assembles.
5. a GIS device, including GIS prepared separation, described GIS prepared separation include the first bus, the second bus, first every
Leaving pass and the second disconnecting switch, described first bus connects one end of described first disconnecting switch, and described second bus connects
One end of described second disconnecting switch, the other end of described first disconnecting switch and the other end of described second disconnecting switch pass through
Connect conductor to connect, it is characterised in that described GIS prepared separation also includes enlarging disconnecting switch and for extending line with outside
The enlarging interface that road connects, one end of described enlarging disconnecting switch connects described connection conductor, and the other end connects described enlarging
Interface；Described first bus is arranged in the first air chamber, and described second bus is arranged in the second air chamber, and described first keeps apart
Pass is arranged in the 3rd air chamber, and described second disconnecting switch is arranged in the 4th air chamber, and described connection conductor is arranged on the 5th gas
In room, described enlarging disconnecting switch is arranged in the 6th air chamber, and described enlarging interface is arranged in the 7th air chamber.
GIS device the most according to claim 1, it is characterised in that by only between described 6th air chamber and the 7th air chamber
Gas formula disc insulator connects.
GIS device the most according to claim 1, it is characterised in that the moving contact of described enlarging disconnecting switch connects institute
Stating connection conductor, static contact connects described enlarging interface.
GIS device the most according to claim 1, it is characterised in that described 7th air chamber includes housing, and can with housing
The capping of dismounting assembling.
9. the outside line enlargement method of a GIS prepared separation, it is characterised in that when construction, reduces enlarging with keeping apart
The air pressure of place, pass air chamber is to a setting value, and the air pressure controlled in the air chamber of enlarging interface place is atmospheric pressure, then carries out follow-up
Enlarging outside line operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610509258.3A CN106129887B (en) | 2016-06-29 | 2016-06-29 | GIS prepared separations, outside line enlargement method and GIS device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610509258.3A CN106129887B (en) | 2016-06-29 | 2016-06-29 | GIS prepared separations, outside line enlargement method and GIS device |
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| CN106129887A true CN106129887A (en) | 2016-11-16 |
| CN106129887B CN106129887B (en) | 2018-03-06 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106374380A (en) * | 2016-11-17 | 2017-02-01 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | GIS bus spare interval power-uninterrupted extension function module and extension method |
| CN111239601A (en) * | 2020-03-05 | 2020-06-05 | 湖北省电力勘测设计院有限公司 | Method for detecting double-break bus isolating switch in 220 KV power transformation combined electrical equipment |
| WO2023139642A1 (en) * | 2022-01-18 | 2023-07-27 | 株式会社東芝 | Gas-insulated switchgear |
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| CN106374380A (en) * | 2016-11-17 | 2017-02-01 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | GIS bus spare interval power-uninterrupted extension function module and extension method |
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| CN111239601A (en) * | 2020-03-05 | 2020-06-05 | 湖北省电力勘测设计院有限公司 | Method for detecting double-break bus isolating switch in 220 KV power transformation combined electrical equipment |
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