CN105006767B - Top-bottom isolation interchanged solid isolating switch structure - Google Patents
Top-bottom isolation interchanged solid isolating switch structure Download PDFInfo
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- CN105006767B CN105006767B CN201510324491.XA CN201510324491A CN105006767B CN 105006767 B CN105006767 B CN 105006767B CN 201510324491 A CN201510324491 A CN 201510324491A CN 105006767 B CN105006767 B CN 105006767B
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- vacuum interrupter
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Abstract
The invention relates to a top-bottom isolation interchanged solid isolating switch structure comprising a top isolating device and a bottom isolating device. The isolating blade of the top isolating device is arranged over a vacuum arc-extinguishing chamber. The isolating blade of the bottom isolating device is arranged under the vacuum arc-extinguishing chamber. The fixed insulating cylinder of the top isolating device and the fixed insulating cylinder of the bottom isolating device have the same shape and size. An A-phase bus conductor, a B-phase bus conductor, and a C-phase bus conductor in each fixed insulating cylinder have same height and same phase intervals. The A-phase bus conductor, the B-phase bus conductor, the C-phase bus conductor, a wire outlet conductor, a vacuum arc-extinguishing chamber connecting conductor, and the vacuum arc-extinguishing chamber are directly poured into the fixed insulating cylinder. An insulated cover plate is fixed to the fixed insulating cylinder and is arranged on a side opposite to the wire outlet conductor and the vacuum arc-extinguishing chamber connecting conductor. The top-bottom isolation interchanged solid isolating switch structure has beneficial effects that the top isolating device and the bottom isolating device can be installed in the same cabinet, can be installed in an interchanged manner and may share a cabinet.
Description
Technical field
The invention belongs to solid insulation switch technical field, more particularly to one kind isolates up and down interchangeable solid insulation switch
Structure.
Background technology
As national grid is widelyd popularize to 12kV solid insulation ring main units, domestic many Specialty Design companies and each big
Complete factory is all researching and developing and is producing solid insulation ring main unit.At present, national grid distribution network systems have two kinds of Main Wire Connection Schemes：On every
From scheme and lower isolation scheme.The difference of so-called upper and lower isolation scheme is exactly to see that disconnecting switch is placed in breaker (vacuum extinction
Room) which side, it is exactly to go up isolation scheme that disconnecting switch is placed in breaker front side, and disconnecting switch is placed in the rear side of breaker and just claims
For lower isolation scheme.Some regional distribution network systems adopt upper isolation scheme, and some areas adopt lower isolation scheme, see each department
Custom；Electric substation also adopts upper isolation scheme, outgoing line cabinet to adopt using the mixed scheme of upper and lower isolation, such as incoming line cabinet
Lower isolation scheme.
At present, existing 12kV solid insulation ring main units on market, or its Main Wire Connection Scheme is upper isolation, or under being
Isolation；Upper isolation scheme can not meet the requirement of lower isolation scheme, and vice versa；Some producers are the distribution side for adapting to each department
The requirement of case, devises several sleeve solid Insulation Schemes, there is upper isolation scheme, also there is lower isolation scheme, although this way exists
The market demand of two kinds of different schemes, but because the nearly all components and parts (ring of a set of solid insulation cabinet are met to a certain extent
Oxygen part, insulation spindle and copper piece etc.) die sinking production is all needed, early investment is very big；And because do not realize two schemes
Size is unified and is spelled cabinet and requires, so or not realizing the mixed requirement of upper and lower isolation scheme in same electric substation.
The content of the invention
It is an object of the invention to overcome the shortcomings of that prior art is present, and it is exhausted to provide a kind of interchangeable solid of isolation up and down
Edge construction of switch, it is ensured that upper and lower isolation two schemes can be mounted in same cabinet, realize two schemes exchange install and
Spell cabinet.
The purpose of the present invention is by following technical solution completing.This variety of interchangeable solid insulation of isolating up and down is opened
Structure is closed, including upper isolating device and isolation blade that isolation blade is located above vacuum interrupter are located at vacuum interrupter lower section
Lower isolating device, described upper isolating device and the shape of the fixed insulation cylinder of lower isolating device and equivalently-sized, in it A
Phase bus-bars conductor, B phase bus-bars conductors, the height of C phase bus-bars conductors and spaced apart are identical；The A phase bus-bars conductors, B phase buses are led
Body, C phase bus-bars conductors, outlet conductor, vacuum interrupter connection conductor, vacuum interrupter are directly cast in fixed insulation cylinder
Interior, insulation cover plate is mutually fixed with fixed insulation cylinder, and connects the opposite of conductor positioned at outlet conductor, vacuum interrupter；Ground connection is touched
Head is arranged on insulation cover plate, and insulation cover plate is also equipped with insulated tension pole, and the insulated tension pole is connected with vacuum interrupter.
Preferably, one end of the outlet conductor of described upper isolating device is fixedly connected with being flexible coupling, vacuum interrupter
Movable contact block is housed on one end of connection conductor, the other end is connected with vacuum interrupter；The vacuum interrupter and the phase that is flexible coupling
Fixed is determined, and this is flexible coupling above equipped with earthing fixed contact pedestal, and the earthing fixed contact pedestal is fixed on fixed insulation cylinder inwall；Connect
Equipped with ground connection blade, A phase bus-bars conductors, B phase bus-bars conductors, C phases bus-bars conductor and isolation knife static contact on ground knife fixed contact pedestal
Seat is connected to a fixed, equipped with isolation blade on the isolation knife fixed contact pedestal.
Preferably, one end of the outlet conductor of described lower isolating device is equipped with earthing fixed contact pedestal, other end dress
There is isolation knife fixed contact pedestal, equipped with ground connection blade on earthing fixed contact pedestal, isolation is led on fixed contact pedestal equipped with isolation blade；Very
Movable contact block is housed on empty arc-chutes connection conductor, the two ends of vacuum interrupter are connected respectively conductor and soft company with vacuum interrupter
Connect and be connected, the other end being flexible coupling is connected with A phase bus-bars conductors, B phase bus-bars conductors, C phase bus-bars conductors.
Beneficial effects of the present invention are：Ensure that two kinds of devices of upper and lower isolation can be mounted in same cabinet, realize two kinds
Cabinet is installed and spelled in the exchange of device；And while same pair of mould can be adopted, two different lower core pullings are realizing, this structure is big
The input cost of mould is saved greatly, one pair of mould and isolation scheme can have been produced, and lower isolation scheme can have been produced, met again
The mixed requirement of upper and lower isolation in the same electric substation.
Description of the drawings
Fig. 1 is the upper isolating device structural representation of the present invention.
Fig. 2 is the lower isolating device structural representation of the present invention.
Fig. 3 is existing upper isolating device wiring diagram.
Fig. 4 is the upper isolating device wiring diagram of the present invention.
Label in accompanying drawing is respectively：1st, outlet conductor；2nd, fixed insulation cylinder；3rd, earthing fixed contact pedestal；4th, earthing
Piece；5th, blade is isolated；6th, movable contact block；7th, vacuum interrupter connection conductor；8th, vacuum interrupter；9th, A phases bus-bars conductor；10、B
Phase bus-bars conductor；11st, C phases bus-bars conductor；12nd, it is flexible coupling；13rd, insulated tension pole；14th, insulation cover plate；15th, isolation knife static contact
Seat；16th, grounding contact；17th, earthed switch；18th, breaker.
Specific embodiment
Detailed introduction is done to the present invention below in conjunction with accompanying drawing：As shown in accompanying drawing 1,2, the present invention includes isolation blade 5
Upper isolating device and isolation blade 5 positioned at the top of vacuum interrupter 8 is located at the lower isolating device of the lower section of vacuum interrupter 8, institute
The upper isolating device stated and the shape of the fixed insulation cylinder 2 of lower isolating device and equivalently-sized, in it A phases bus-bars conductor 9, B
Phase bus-bars conductor 10, the height of C phases bus-bars conductor 11 and spaced apart are identical, it is ensured that two kinds of devices of upper and lower isolation can be mounted in together
In the cabinet of sample, cabinet requirement is installed and spelled to the interchangeability for realizing two kinds of devices；The A phases bus-bars conductor 9, B phase bus-bars conductors
10th, C phases bus-bars conductor 11, outlet conductor 1, vacuum interrupter connection conductor 7, vacuum interrupter 8 are directly cast in fixed exhausted
In edge cylinder 2, insulation cover plate 14 is mutually fixed with fixed insulation cylinder 2, and connects the right of conductor 7 positioned at outlet conductor 1, vacuum interrupter
Face；Grounding contact 16 be arranged on insulation cover plate 14 on, insulation cover plate 14 is also equipped with insulated tension pole 13, the insulated tension pole 13 with it is true
Empty arc-chutes 8 are connected.
As shown in Figure 1, one end of the outlet conductor 1 of described upper isolating device 12 is fixedly connected with being flexible coupling, vacuum
Movable contact block 6 is housed on one end of arc-chutes connection conductor 7, the other end is connected with vacuum interrupter 8；The vacuum interrupter 8
12 it is fixedly connected with being flexible coupling, this is flexible coupling on 12 and is fixed on equipped with earthing fixed contact pedestal 3, the earthing fixed contact pedestal 3
Determine on the inwall of insulating cylinder 2；Equipped with ground connection blade 4, A phases bus-bars conductor 9, B phases bus-bars conductor 10, C phases on earthing fixed contact pedestal 3
Bus-bars conductor 11 is connected to a fixed with isolation knife fixed contact pedestal 15, equipped with isolation blade 5 on the isolation knife fixed contact pedestal 15.
As shown in Figure 2, one end of the outlet conductor 1 of described lower isolating device is equipped with earthing fixed contact pedestal 3, another
End is equipped with isolation knife fixed contact pedestal 15, and equipped with ground connection blade 4 on earthing fixed contact pedestal 3, isolation is led and be equipped with fixed contact pedestal 15
Isolation blade 5；Movable contact block 6 is housed on vacuum interrupter connection conductor 7, the two ends of vacuum interrupter 8 respectively with vacuum extinction
Room connects conductor 7 and is flexible coupling and 12 is connected, be flexible coupling 12 the other end and A phases bus-bars conductor 9, B phases bus-bars conductor 10, C phases
Bus-bars conductor 11 is connected.
As shown in Figure 3, traditional upper isolation scheme adopts three-station isolating/grounding switch, it is at present almost all of on
Isolation scheme solid insulation producer adopts this mode of connection.This kind of structure has a drawback：Realize that line side is grounded, it is necessary to
First close earthed switch 17, then the breaker 18 that closes, and just can be grounded.This operation does not meet distribution system once-through operation conjunction
The routine operation of earthed switch, easily causes maloperation.As shown in Figure 4, this structure is accomplished that the side being grounded under isolation
Case, close earthing only need to directly close earthed switch 17 just can be so that operation is simple and reliable.
The transmission of the upper isolating device of the present invention is as follows：
(1) major loop：
(2) earth-return circuit：
The transmission of the lower isolating device of the present invention is as follows：
(1) major loop：
(2) earth-return circuit：
It is understood that it will be understood by those skilled in the art that to technical scheme and inventive concept in addition etc.
Should all belong to the protection domain of appended claims of the invention with replacement or change.
Claims (2)
1. one kind isolates up and down interchangeable solid insulation switch structure, including isolation blade (5) positioned at vacuum interrupter (8) top
Upper isolating device and isolation blade (5) lower isolating device below vacuum interrupter (8), it is characterised in that：Described
The shape of the fixed insulation cylinder (2) of upper isolating device and lower isolating device and equivalently-sized, A phase bus-bars conductors (9) in it, B
Phase bus-bars conductor (10), the height of C phase bus-bars conductors (11) and spaced apart are identical；A phase bus-bars conductors (9), B phase bus-bars conductors
(10), C phases bus-bars conductor (11), outlet conductor (1), vacuum interrupter connection conductor (7), vacuum interrupter (8) are directly poured
Note in fixed insulation cylinder (2), insulation cover plate (14) is mutually fixed with fixed insulation cylinder (2), and positioned at outlet conductor (1), vacuum
The opposite of arc-chutes connection conductor (7)；On insulation cover plate (14), insulation cover plate (14) is also equipped with grounding contact (16)
Insulated tension pole (13), the insulated tension pole (13) is connected with vacuum interrupter (8)；The outlet conductor of described upper isolating device
(1) one end be flexible coupling (12) be fixedly connected, vacuum interrupter connection conductor (7) one end on be equipped with movable contact block (6), separately
One end is connected with vacuum interrupter (8)；The vacuum interrupter (8) be flexible coupling (12) be fixedly connected, this is flexible coupling on (12)
Equipped with earthing fixed contact pedestal (3), the earthing fixed contact pedestal (3) is fixed on fixed insulation cylinder (2) inwall；Earthing stationary contact
On headstock (3) equipped with ground connection blade (4), A phase bus-bars conductors (9), B phase bus-bars conductors (10), C phase bus-bars conductors (11) with isolate
Knife fixed contact pedestal (15) is connected to a fixed, equipped with isolation blade (5) on the isolation knife fixed contact pedestal (15).
It is 2. according to claim 1 to isolate interchangeable solid insulation switch structure up and down, it is characterised in that：Under described every
Earthing fixed contact pedestal (3) is housed from one end of the outlet conductor (1) of device, the other end is equipped with isolation knife fixed contact pedestal (15),
Equipped with ground connection blade (4) on earthing fixed contact pedestal (3), isolation is led on fixed contact pedestal (15) equipped with isolation blade (5)；Vacuum is gone out
Movable contact block (6) is housed, the two ends of vacuum interrupter (8) are connected conductor with vacuum interrupter respectively on arc chamber connection conductor (7)
(7) and be flexible coupling (12) be connected, be flexible coupling the other end and A phase bus-bars conductors (9), B phase bus-bars conductors (10), C phases of (12)
Bus-bars conductor (11) is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510324491.XA CN105006767B (en) | 2015-06-12 | 2015-06-12 | Top-bottom isolation interchanged solid isolating switch structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510324491.XA CN105006767B (en) | 2015-06-12 | 2015-06-12 | Top-bottom isolation interchanged solid isolating switch structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105006767A CN105006767A (en) | 2015-10-28 |
| CN105006767B true CN105006767B (en) | 2017-05-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510324491.XA Active CN105006767B (en) | 2015-06-12 | 2015-06-12 | Top-bottom isolation interchanged solid isolating switch structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN105006767B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107240846A (en) * | 2017-08-04 | 2017-10-10 | 浙江聚弘凯电气有限公司 | Connection header structure for high-tension switch gear |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57126210A (en) * | 1981-01-28 | 1982-08-05 | Mitsubishi Electric Corp | Solid insulating switching device |
| CN203377529U (en) * | 2013-07-17 | 2014-01-01 | 宁波天安（集团）股份有限公司 | A three-position solid insulated switch device |
| CN104576160A (en) * | 2014-12-18 | 2015-04-29 | 珠海康晋电气有限公司 | Solid insulating three-position isolating switch with grounding switching off capability |
| CN204706820U (en) * | 2015-06-12 | 2015-10-14 | 杭州曙光电器有限公司 | Isolate interchangeable solid insulation switch structure up and down |
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2015
- 2015-06-12 CN CN201510324491.XA patent/CN105006767B/en active Active
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| Publication number | Publication date |
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| CN105006767A (en) | 2015-10-28 |
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