CN105006767A - Top-bottom isolation interchanged solid isolating switch structure - Google Patents
Top-bottom isolation interchanged solid isolating switch structure Download PDFInfo
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- CN105006767A CN105006767A CN201510324491.XA CN201510324491A CN105006767A CN 105006767 A CN105006767 A CN 105006767A CN 201510324491 A CN201510324491 A CN 201510324491A CN 105006767 A CN105006767 A CN 105006767A
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- conductor
- phase bus
- isolation
- vacuum interrupter
- fixed contact
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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, particularly relate to one and isolate interchangeable solid insulation switch structure up and down.
Background technology
Along with national grid wideling popularize 12kV solid insulation ring main unit, domestic a lot of Specialty Design company and each large complete factory are all at research and development and production solid insulation ring main unit.At present, national grid distribution network systems has two kinds of Main Wire Connection Scheme: upper isolation scheme and lower isolation scheme.The difference of so-called upper and lower isolation scheme is exactly see isolating switch is placed in which side of circuit breaker (vacuum interrupter), and it is exactly upper isolation scheme that isolating switch is placed on front side of circuit breaker, and the rear side that isolating switch is placed in circuit breaker is just called lower isolation scheme.The distribution network systems in some area adopts upper isolation scheme, and some area adopts lower isolation scheme, sees the custom of each department; The scheme that the electric substation also had adopts upper and lower isolation mixed, as incoming line cabinet adopts upper isolation scheme, outgoing line cabinet adopts lower isolation scheme.
At present, existing 12kV solid insulation ring main unit on market, its Main Wire Connection Scheme or be upper isolation, or be lower isolation; Upper isolation scheme can not meet the requirement of lower isolation scheme, and vice versa; Some producer is the requirement of the distribution scheme adapting to each department, devise several sleeve solid Insulation Scheme, there is upper isolation scheme, also lower isolation scheme is had, although this way meets the market demand of two kinds of different schemes to a certain extent, but because the nearly all components and parts of a set of solid insulation cabinet (epoxy part, insulation spindle and copper piece etc.) all need die sinking to produce, early investment is very large; And because the size not realizing two schemes is unified and the requirement of spelling cabinet, so or do not realize the requirement that in same electric substation, upper and lower isolation scheme is mixed.
Summary of the invention
The object of the invention is to the deficiency overcoming prior art existence, and provide one to isolate interchangeable solid insulation switch structure up and down, ensure that upper and lower isolation two schemes can be contained in same cabinet, the exchange realizing two schemes is installed and spells cabinet.
The object of the invention is to have come by following technical solution.This all interchangeable of isolation up and down solid insulation switch structure, comprise isolation blade to be positioned at upper spacer assembly above vacuum interrupter and isolation blade and to be positioned at lower spacer assembly below vacuum interrupter, the shape of the fixed insulation cylinder of described upper spacer assembly and lower spacer assembly and measure-alike, height and the spaced apart of the A phase bus-bars conductor in it, B phase bus-bars conductor, C phase bus-bars conductor are identical; This A phase bus-bars conductor, B phase bus-bars conductor, C phase bus-bars conductor, outlet conductor, vacuum interrupter bonding conductor, vacuum interrupter are all directly cast in fixed insulation cylinder, insulation cover plate and fixed insulation cylinder fix, and are positioned at the opposite of outlet conductor, vacuum interrupter bonding conductor; Grounding contact is arranged on insulation cover plate, and insulation cover plate is also provided with insulated tension pole, and this insulated tension pole is connected with vacuum interrupter.
As preferably, one end of the outlet conductor of described upper spacer assembly is fixedly connected with being flexible coupling, and movable contact block is equipped with in one end of vacuum interrupter bonding conductor, and the other end is connected with vacuum interrupter; This vacuum interrupter is fixedly connected with being flexible coupling, and this is equipped with earthing fixed contact pedestal on being flexible coupling, and this earthing fixed contact pedestal is fixed on fixed insulation cylinder inwall; Earthing fixed contact pedestal is equipped with ground connection blade, A phase bus-bars conductor, B phase bus-bars conductor, C phase bus-bars conductor and isolation knife fixed contact pedestal are connected to a fixed, and this isolation knife fixed contact pedestal is equipped with isolation blade.
As preferably, earthing fixed contact pedestal is equipped with in one end of the outlet conductor of described lower spacer assembly, and the other end is equipped with isolation knife fixed contact pedestal, earthing fixed contact pedestal is equipped with ground connection blade, and isolation is led on fixed contact pedestal and isolation blade is housed; Vacuum interrupter bonding conductor is equipped with movable contact block, and the two ends of vacuum interrupter are connected with vacuum interrupter bonding conductor and being flexible coupling respectively, and the other end be flexible coupling is connected with A phase bus-bars conductor, B phase bus-bars conductor, C phase bus-bars conductor.
Beneficial effect of the present invention is: ensure that upper and lower isolation two kinds of devices can be contained in same cabinet, and the exchange realizing two kinds of devices is installed and spells cabinet; And same pair of mould can be adopted simultaneously, two different under loose core to realize, this structure has saved the input cost of mould greatly, one pair of mould and can produce isolation scheme, lower isolation scheme can be produced again, meet again the requirement that upper and lower isolation is mixed in same electric substation.
Accompanying drawing explanation
Fig. 1 is upper spacer assembly structural representation of the present invention.
Fig. 2 is lower spacer assembly structural representation of the present invention.
Fig. 3 is existing upper spacer assembly winding diagram.
Fig. 4 is upper spacer assembly winding diagram of the present invention.
Label in accompanying drawing is respectively: 1, outlet conductor; 2, fixed insulation cylinder; 3, earthing fixed contact pedestal; 4, ground connection blade; 5, blade is isolated; 6, movable contact block; 7, vacuum interrupter bonding conductor; 8, vacuum interrupter; 9, A phase bus-bars conductor; 10, B phase bus-bars conductor; 11, C phase bus-bars conductor; 12, be flexible coupling; 13, insulated tension pole; 14, insulation cover plate; 15, isolation knife fixed contact pedestal; 16, grounding contact; 17, earthed switch; 18, circuit breaker.
Embodiment
Below in conjunction with accompanying drawing, detailed introduction is done to the present invention: as accompanying drawing 1, shown in 2, the present invention includes isolation blade 5 to be positioned at upper spacer assembly above vacuum interrupter 8 and isolation blade 5 and to be positioned at lower spacer assembly below vacuum interrupter 8, the shape of the fixed insulation cylinder 2 of described upper spacer assembly and lower spacer assembly and measure-alike, A phase bus-bars conductor 9 in it, B phase bus-bars conductor 10, height and the spaced apart of C phase bus-bars conductor 11 are identical, ensure that, lower isolation two kinds of devices can be contained in same cabinet, the interchangeability achieving two kinds of devices is installed and spells cabinet requirement, this A phase bus-bars conductor 9, B phase bus-bars conductor 10, C phase bus-bars conductor 11, outlet conductor 1, vacuum interrupter bonding conductor 7, vacuum interrupter 8 are all directly cast in fixed insulation cylinder 2, insulation cover plate 14 and fixed insulation cylinder 2 fix, and are positioned at the opposite of outlet conductor 1, vacuum interrupter bonding conductor 7, grounding contact 16 is arranged on insulation cover plate 14, and insulation cover plate 14 is also provided with insulated tension pole 13, and this insulated tension pole 13 is connected with vacuum interrupter 8.
As shown in Figure 1, one end of the outlet conductor 1 of described upper spacer assembly 12 to be fixedly connected with being flexible coupling, and one end of vacuum interrupter bonding conductor 7 is equipped with movable contact block 6, the other end is connected with vacuum interrupter 8; This vacuum interrupter 8 12 to be fixedly connected with being flexible coupling, and this is flexible coupling on 12 and earthing fixed contact pedestal 3 is housed, and this earthing fixed contact pedestal 3 is fixed on fixed insulation cylinder 2 inwall; Earthing fixed contact pedestal 3 is equipped with ground connection blade 4, A phase bus-bars conductor 9, B phase bus-bars conductor 10, C phase bus-bars conductor 11 and isolation knife fixed contact pedestal 15 to be connected to a fixed, this isolation knife fixed contact pedestal 15 is equipped with isolation blade 5.
As shown in Figure 2, earthing fixed contact pedestal 3 is equipped with in one end of the outlet conductor 1 of described lower spacer assembly, and the other end is equipped with isolation knife fixed contact pedestal 15, earthing fixed contact pedestal 3 is equipped with ground connection blade 4, and isolation is led on fixed contact pedestal 15 and isolation blade 5 is housed; Movable contact block 6 vacuum interrupter bonding conductor 7 is equipped with, the two ends of vacuum interrupter 8 12 to be connected with vacuum interrupter bonding conductor 7 and being flexible coupling respectively, be flexible coupling 12 the other end be connected with A phase bus-bars conductor 9, B phase bus-bars conductor 10, C phase bus-bars conductor 11.
As shown in Figure 3, traditional upper isolation scheme adopts three-station isolating/grounding switch, and upper isolation scheme solid insulation producer nearly all at present all adopts this mode of connection.This kind of structure has a drawback: realize line side ground connection, and must first close earthed switch 17, then the circuit breaker 18 that closes, and just can be grounded.This operation does not meet the routine operation that earthed switch is closed in distribution system once-through operation, easily causes misoperation.As shown in Figure 4, what this structure realized is the scheme of ground connection under upper isolation, and close the earthing earthed switch 17 that only need directly close just passable, operation is simple and reliable.
The transmission of upper spacer assembly of the present invention is as follows:
(1) major loop:
Outlet conductor 1
be flexible coupling 12
vacuum interrupter 8 (now ground connection blade 4 is in isolated location)
vacuum interrupter bonding conductor 7
movable contact block 6
isolation blade 5
isolation knife fixed contact pedestal 15
a/B/C phase bus-bars conductor.
(2) grounded circuit:
Outlet conductor 1
be flexible coupling 12
earthing fixed contact pedestal 3 (now vacuum interrupter 8 is in open position, and isolation blade 5 is in isolated location)
ground connection blade 4
grounding contact 16
main earthing bar ground connection.
Under the present invention, the transmission of spacer assembly is as follows:
(1) major loop:
Outlet conductor 1
isolation knife fixed contact pedestal 15 (now ground connection blade 4 is in isolated location)
isolation blade 5
movable contact block 6
vacuum interrupter bonding conductor 7
vacuum interrupter 8
be flexible coupling 12
a/B/C phase bus-bars conductor.
(2) grounded circuit:
Outlet is led and is stopped 1
earthing fixed contact pedestal 3 (now isolate blade 5 and be in isolated location, vacuum interrupter 8 is in open position)
ground connection blade 4
grounding contact 16
main earthing bar ground connection.
Be understandable that, for a person skilled in the art, technical scheme of the present invention and inventive concept be equal to and replace or change the protection range that all should belong to the claim appended by the present invention.
Claims (3)
1. about one kind isolation interchangeable solid insulation switch structure, comprise isolation blade (5) be positioned at the upper spacer assembly of vacuum interrupter (8) top and isolate the lower spacer assembly that blade (5) is positioned at vacuum interrupter (8) below, it is characterized in that: the shape of the fixed insulation cylinder (2) of described upper spacer assembly and lower spacer assembly and measure-alike, height and the spaced apart of the A phase bus-bars conductor (9) in it, B phase bus-bars conductor (10), C phase bus-bars conductor (11) are identical; This A phase bus-bars conductor (9), B phase bus-bars conductor (10), C phase bus-bars conductor (11), outlet conductor (1), vacuum interrupter bonding conductor (7), vacuum interrupter (8) are all directly cast in fixed insulation cylinder (2), insulation cover plate (14) and fixed insulation cylinder (2) fix, and are positioned at the opposite of outlet conductor (1), vacuum interrupter bonding conductor (7); Grounding contact (16) is arranged on insulation cover plate (14), and insulation cover plate (14) is also provided with insulated tension pole (13), and this insulated tension pole (13) is connected with vacuum interrupter (8).
2. the interchangeable of isolation up and down solid insulation switch structure according to claim 1, it is characterized in that: one end of the outlet conductor (1) of described upper spacer assembly is fixedly connected be flexible coupling (12), one end of vacuum interrupter bonding conductor (7) is equipped with movable contact block (6), the other end is connected with vacuum interrupter (8); This vacuum interrupter (8) is fixedly connected be flexible coupling (12), earthing fixed contact pedestal (3) is housed on this is flexible coupling (12), and this earthing fixed contact pedestal (3) is fixed on fixed insulation cylinder (2) inwall; Ground connection blade (4) earthing fixed contact pedestal (3) is equipped with, A phase bus-bars conductor (9), B phase bus-bars conductor (10), C phase bus-bars conductor (11) and isolation knife fixed contact pedestal (15) are connected to a fixed, and this isolation knife fixed contact pedestal (15) are equipped with isolation blade (5).
3. the interchangeable of isolation up and down solid insulation switch structure according to claim 1, it is characterized in that: earthing fixed contact pedestal (3) is equipped with in one end of the outlet conductor (1) of described lower spacer assembly, the other end is equipped with isolation knife fixed contact pedestal (15), earthing fixed contact pedestal (3) is equipped with ground connection blade (4), isolation is led on fixed contact pedestal (15) and isolation blade (5) is housed; Movable contact block (6) vacuum interrupter bonding conductor (7) is equipped with, the two ends of vacuum interrupter (8) are connected with vacuum interrupter bonding conductor (7) and be flexible coupling (12) respectively, and the other end of be flexible coupling (12) is connected with A phase bus-bars conductor (9), B phase bus-bars conductor (10), C phase bus-bars conductor (11).
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 |
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| Publication Number | Publication Date |
|---|---|
| CN105006767A true CN105006767A (en) | 2015-10-28 |
| CN105006767B CN105006767B (en) | 2017-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510324491.XA Active CN105006767B (en) | 2015-06-12 | 2015-06-12 | Top-bottom isolation interchanged solid isolating switch structure |
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Cited By (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 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6355738B2 (en) * | 1981-01-28 | 1988-11-04 | Mitsubishi Electric Corp | |
| 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 |
-
2015
- 2015-06-12 CN CN201510324491.XA patent/CN105006767B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6355738B2 (en) * | 1981-01-28 | 1988-11-04 | Mitsubishi Electric Corp | |
| 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 |
Cited By (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 |
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| Publication number | Publication date |
|---|---|
| CN105006767B (en) | 2017-05-10 |
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