CN203536329U - Superspeed mechanical switch - Google Patents
Superspeed mechanical switch Download PDFInfo
- Publication number
- CN203536329U CN203536329U CN201320699851.0U CN201320699851U CN203536329U CN 203536329 U CN203536329 U CN 203536329U CN 201320699851 U CN201320699851 U CN 201320699851U CN 203536329 U CN203536329 U CN 203536329U
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- contact
- pedestal
- lower fixed
- fixed contact
- seat
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Abstract
The utility model discloses a superspeed mechanical switch, belonging to the technical field of HVDC transmission technology and being applicable to a +-200kV hybrid high-voltage DC breaker. The superspeed mechanical switch includes a composite insulation bushing provided with a conductive rod, a basin type insulator, an upper contact seat, a lower contact seat, a bridging conductive rod, a compound wedged contact structure, a cross sliding type moving contact system, an insulating pull bar, a bottom tank, a bridging tank, a vertical tank, and a superspeed hydraulic spring operating mechanism. The superspeed mechanical switch has the characteristics of simple structure, less fracture, high mechanical reliability, high durable voltage, fast opening and closing operation, and good synchronism, and can meet the matching requirements of the +-200kV hybrid high-voltage DC breaker.
Description
Technical field
The utility model belongs to high voltage dc transmission technology field, and the particularly ultrahigh speed mechanical switch in a kind of mixed type high voltage DC breaker, in can be applicable to ± 200kV HVDC (High Voltage Direct Current) transmission system.
Background technology
High voltage DC breaker is key technology and the equipment in HVDC (High Voltage Direct Current) transmission system, in high pressure multiterminal flexible DC power transmission system, due to the high voltage DC breaker that does not still meet specification requirement and can apply in direct current transportation networking, the high voltage direct current technology of cut-offfing has become the bottleneck of high voltage dc transmission technology development and application.Ultrahigh-speed DC mechanical switch technology is the core technology of mixed type high voltage DC breaker, it is the important component part of mixed type high voltage DC breaker, it is blank that current this high speed machine switch still belongs at home, external similar machines switch is the agent structure that adopts a plurality of fractures serial connections to form, and complex structure, poor synchronization, Mechanical Reliability be low, bulky, involve great expense.
Summary of the invention
Utility model object:
The utility model provides a kind of ultrahigh speed mechanical switch, its objective is the existing complex structure of solution equipment in the past, poor synchronization, the low and bulky problem of Mechanical Reliability.
Technical scheme:
A kind of ultrahigh speed mechanical switch, its special card is: it comprises the composite bushing with conducting rod, the upper static contact seat of combined type contract type structure of contact terminal, the lower fixed contact pedestal of combined type contract type structure of contact terminal, the main conductive circuit that sliding movable contact system and each structure of bridge joint conducting rod form, upper static contact seat and lower fixed contact pedestal are arranged in the airtight Storage Tank that is filled with sulfur hexafluoride gas, upper static contact seat is arranged on lower fixed contact pedestal top, upper static contact seat and lower fixed contact pedestal position are corresponding, between upper static contact seat and lower fixed contact pedestal, leave sliding switch fracture, Storage Tank symmetry be arranged on the bridge joint tank two ends that are filled with sulfur hexafluoride gas, Storage Tank and bridge joint tank UNICOM, Storage Tank and bridge joint tank form " H " shape structure, bridge joint conducting rod is arranged in bridge joint tank, and the lower fixed contact pedestal of bridge joint conducting rod and both sides is connected to form conductive structure, sliding movable contact system is arranged on bridge joint tank top, the cross sliding type moving contact at sliding movable contact system two ends puts in Storage Tank and puts in use connection upper static contact seat and lower fixed contact pedestal in the sliding switch fracture between upper static contact seat and lower fixed contact pedestal, composite bushing with conducting rod is connected with upper static contact seat, and the conducting rod of composite bushing connects binding post.
Two linkage structures that cross sliding type moving contact is synchronization action, its direction of action is to be inwardly separating brake, outwards for closing a floodgate, makes the horizontal cross motion of sliding contact between upper and lower contact base realize breaking-closing operating.
Upper static contact seat and lower fixed contact pedestal are used that the plane form of the good metal material of conduction employing ± 60-70 ° is relative to be formed, and the beeline between upper static contact seat and lower fixed contact pedestal is to meet the distance that insulation voltage fracture requires; Sliding moving contact is used the good metal material of conduction and adopts contrary angle with upper and lower a pair of fixed contact pedestal, rely on the horizontal prestressed tension of hydraulic actuating mechanism energy storage that moving contact and fixed contact pedestal are completely closely contacted when closing of circuit, form the structure of reliable conductive path, meet the effect of the specified direct current transportation electric current of conducting; Under the operation of hydraulic actuating mechanism, by the high speed horizontal movement of moving contact, can carry out the separated of horizontal cross with closed with fixed contact pedestal, realized breaking-closing operating.
Between every group of two-way fixed contact pedestal perpendicular separation of insulation, use local filling of material that insulation property are superior, the point discharge effect of the short time voltage that elimination may occur in circuit when circuit disjunction state to the generation between two-way fixed contact pedestal perpendicular separation, meets the insulation property that tolerate class rating voltage.
Cross sliding type moving contact is connected with the hydraulic actuating mechanism in sliding movable contact system by insulated tension pole.
Advantageous effect:
The utility model is the key equipment of mixed type high voltage DC breaker, when moving, high voltage direct current transmission can meet the stable operation requirement of the large electric current transmission of electricity of high direct voltage, when mixed type high voltage DC breaker needs disjunction hvdc circuit, by the ultrahigh speed mechanical movement of hydraulic system, carry out sub-switching operation and cut-off circuit, realize the effect of high speed disjunction hvdc circuit; At DC circuit breaker, within instantaneous minute, have no progeny, form fast reliable isolation fracture, to realize fast insulate reliably fracture and reach high speed, the object of isolated high-voltage DC circuit reliably with minimum fracture of minute deenergizing, Rapid Establishment.
A kind of ultrahigh speed mechanical switch described in the utility model, it comprises the compound insulating sleeve with conducting rod, disc insulator, combined type contract type structure of contact terminal and upper contact head seat, lower contact base, bridge joint conducting rod, cross sliding type movable contact system, insulated tension pole, end tank, bridge joint tank, Storage Tank, ultrahigh speed hydraulic pressure spring operating mechanism, its structure-forming process is that binding post and conducting rod are integrally welded, conducting rod and insulating sleeve pour into an integrated entity, compound insulating sleeve and insulating mounting flange are cemented to one, insulating mounting flange and disc insulator and Storage Tank couple together through connecting screw rod, disc insulator and upper contact head seat are cast in one, lower contact base is also cast in one with disc insulator, by disc insulator and Storage Tank and end tank, link into an integrated entity, make upper contact head seat and lower contact base coaxially arranged simultaneously, and form an isolation fracture H between upper and lower contact base, at isolation fracture transversely, there is cross sliding type moving contact, energy storage Horizontal Tension through hydraulic spring mechanism acts on insulated tension pole, two cross sliding type movable contact systems synchronous with the isolation fracture H formation galvanic circle of combining closely, two Storage Tanks are connected through bridge joint tank, bridge joint conducting rod in bridge joint tank couples together the lower contact base in two Storage Tanks, form on the one hand galvanic circle, form on the other hand stable structure by twice contact base fixed strains, the mechanical force impact producing when transverse horizontal is moved to overcome cross sliding type movable contact system, two Storage Tanks are connected and fixed and are integrated through end tank and switch pedestal again, form a rock-steady structure with horizontal impact power and anti-vibration.
Ultrahigh speed mechanical switch of the present utility model is that the insulation fracture in two Storage Tanks is formed to conduction major loop through bridge joint tank, and two cross sliding type moving contacts in combined type contract type structure of contact terminal are by same hydraulic mechanism Synchronization Control, ultrahigh speed mechanical switch has good conductivity in the "on" position of circuit, has that combined floodgate dependable performance, withstand voltage are high, the large technical characterictic of tolerance rated current, when dividing deenergizing, movable contact system in combined type contract type structure of contact terminal can be separated with fixed contact pedestal immediately when action is cut-off in execution, instantaneous breaking, synchronously start to set up the insulation distance of breaking between moving contact and fixed contact pedestal, reduced significantly the run duration of movable contact system, while moving contact cut-offs separation of level mechanical movement to carry out under friction free state between moving contact and fixed contact pedestal, improve contact system and cut-off separated movement velocity, reduced significantly and cut-off the time needing, there is separating brake action fast, switch off time is short, set up the fast technical characterictic of clearance for insulation, realized superfast sub-switching operation, ultrahigh speed mechanical switch is realized after minute deenergizing, and the fracture that combined type contract type structure of contact terminal is set up has that insulating reliability is high, the large feature of tolerance peak current, the feature that high speed machine switch of the present utility model has that breaking-closing operating action is fast, synchronism fracture number good, simple in structure, that cut-off ad eundem voltage is few, Mechanical Reliability is high and volume is little etc.
The technical approach that the utility model adopts, has overcome the above-mentioned shortcoming of external product, is conducive to improve the technical performance of mixed type high voltage DC breaker, reduced product volume, reduced cost, be convenient to apply in high-voltage flexible multi-terminal HVDC transmission field.
Accompanying drawing explanation
Fig. 1 is ultrahigh speed mechanical switch "on" position schematic diagram in the utility model patent;
Fig. 2 is ultrahigh speed mechanical switch gate-dividing state schematic diagram in the utility model patent.
Embodiment
Concrete structure of the present utility model and operation principle are shown in accompanying drawing, referring to Fig. 1, wherein have:
1 binding post 2 is with the compound insulating sleeve 3 insulating mounting flanges of conducting rod
The low tank 18 bridge joint tank 19 Storage Tank combined type contract type structure of contact terminal isolation fracture H of contact base 9 SF6 gas Air filling and discharging valves and Pressure gauge 10 switches low seat 11 bridge joint conducting rod 12 cross sliding type moving contact 13 insulated tension pole 14 hydraulic pressure spring operating mechanism 15 adpting flange 16 seal 17 under 4 construction bolt 5 sealing ring 6 disc insulator 7 combined type contract type structure of contact terminal upper contact head seat 8 combined type contract type structure of contact terminals.A in figure is combined floodgate direction, and B is separating brake direction.
A kind of ultrahigh speed mechanical switch of the utility model, it comprises the composite bushing 2 with conducting rod, the upper static contact seat 7 of combined type contract type structure of contact terminal, the lower fixed contact pedestal 8 of combined type contract type structure of contact terminal, the main conductive circuit that sliding movable contact system and bridge joint conducting rod 11 each structures form, upper static contact seat 7 and lower fixed contact pedestal 8 are arranged in the airtight Storage Tank 19 that is filled with sulfur hexafluoride gas, upper static contact seat 7 is arranged on lower fixed contact pedestal 8 tops, upper static contact seat 7 and lower fixed contact pedestal 8 positions are corresponding, between upper static contact seat 7 and lower fixed contact pedestal 8, leave sliding switch fracture, Storage Tank 19 symmetries be arranged on bridge joint tank 18 two ends that are filled with sulfur hexafluoride gas, Storage Tank 19 and bridge joint Guan18 UNICOM, Storage Tank 19 forms " H " shape structure with bridge joint tank 18, bridge joint conducting rod 11 is arranged in bridge joint tank 18, and bridge joint conducting rod 11 is connected to form conductive structure with the lower fixed contact pedestal 8 of both sides, sliding movable contact system is arranged on bridge joint tank 18 tops, the cross sliding type moving contact 12 at sliding movable contact system two ends puts in Storage Tank 19 and puts in use connection upper static contact seat 7 and lower fixed contact pedestal 8 in the sliding switch fracture between upper static contact seat 7 and lower fixed contact pedestal 8, composite bushing 2 with conducting rod is connected with upper static contact seat 7, and the conducting rod of composite bushing 2 connects binding post 1.
Two linkage structures that cross sliding type moving contact 12 is synchronization action, its direction of action is to be inwardly separating brake, outwards for closing a floodgate, makes the horizontal cross motion of sliding contact between upper and lower contact base realize breaking-closing operating.
Upper static contact seat 7 and lower fixed contact pedestal 8 are used that the plane form of the good metal material of conduction employing ± 60-70 ° is relative to be formed, and the beeline between upper static contact seat 7 and lower fixed contact pedestal 8 is to meet the distance that insulation voltage fracture requires; Sliding moving contact is used the good metal material of conduction and adopts contrary angle with upper and lower a pair of fixed contact pedestal, rely on the horizontal prestressed tension of hydraulic actuating mechanism energy storage that cross sliding type moving contact 12 and upper static contact seat 7 and lower fixed contact pedestal 8 are completely closely contacted when closing of circuit, form the structure of reliable conductive path, meet the effect of the specified direct current transportation electric current of conducting; Under the operation of hydraulic actuating mechanism, by the high speed horizontal movement of moving contact, can carry out the separated of horizontal cross with closed with fixed contact pedestal, realized breaking-closing operating.
Between every group of two-way fixed contact pedestal perpendicular separation of insulation, use local filling of material that insulation property are superior, the point discharge effect of the short time voltage that elimination may occur in circuit when circuit disjunction state to the generation between two-way fixed contact pedestal perpendicular separation, meets the insulation property that tolerate class rating voltage.
High speed machine switch of the present utility model, by binding post 1, be welded on on the conducting rod in the composite bushing 2 of conducting rod, composite bushing 2 with conducting rod is cemented together with insulating mounting flange 3, utilize insulating flange 3 and construction bolt 4 by the composite bushing with conducting rod 2, disc insulator 6 and Storage Tank 19 are connected, on the joint face of insulating flange 3 and disc insulator 6, be embedded with sealing ring 5, on the joint face of disc insulator 6 and Storage Tank 19, be embedded with sealing ring 5, upper contact head seat 7 pours into an integrated entity with disc insulator 6, lower contact base 8 pours into an integrated entity with disc insulator 6, Storage Tank 19 and disc insulator 6 are connected with end tank 17 use bolts 4.Two Storage Tanks 19 are connected through bridge joint tank 18, bridge joint conducting rod 11 two are threaded, thus twice contact bases 8 are linked into an integrated entity, form galvanic circle, cross sliding type moving contact 12 is connected with insulated tension pole 13 use screw threads, insulated tension pole 13 is connected with hydraulic actuating mechanism 14, and adpting flange 15 is welded on Storage Tank 19, and dynamic seal 16 is housed in adpting flange 15; The power output at hydraulic actuating mechanism 14 two ends is connected respectively at both sides insulated tension pole 13.Both sides Storage Tank 19 is integrally welded with switch pedestal.
the specific works mode of the utility model high speed machine switch:
Switch closes a floodgate: when hydraulic pressure spring operating mechanism 14 is received combined floodgate order, synchronous insulated tension pole 13 and the cross sliding type moving contact 12 of both sides of driving of hydraulic pressure spring operating mechanism 14 moves to combined floodgate direction fast, cross sliding type moving contact 12 is closely connected location through horizontal movement at the while under energy storage effect of the insulated tension pole 13 of the synchronous drive of hydraulic actuating mechanism 14 both sides and upper contact head seat 7 and lower contact base 8, thereby formed galvanic circle, this galvanic circle is the binding post 1 by a side, composite bushing 2 with conducting rod, upper contact head seat 7, lower contact base 8, bridge joint conducting rod 11 is again through the lower contact base 8 of opposite side, upper contact head seat 7, composite bushing 2 with conducting rod, binding post 1 forms, met the function of circuit turn-on, see Fig. 1.
Switch separating brake: when hydraulic actuating mechanism 14 is received sub-switching operation order, hydraulic actuating mechanism 14 drives insulated tension pole 13 and the cross sliding type moving contact 12 of both sides to separating brake direction, to move fast, described separating brake direction namely moves inward simultaneously, make cross sliding type moving contact 12 leave upper contact head seat 7 and lower contact base 8, thereby between upper contact head seat 7 and lower contact base 8, form rapidly combined type contract type structure of contact terminal isolation fracture H, thereby cut off galvanic circle, met the function of minute deenergizing, seen Fig. 2.
The inflation/deflation of switch S F6 gas: the inflation/deflation of switch is completed by SF6 gas Air filling and discharging valves and Pressure gauge 9.
Claims (5)
1. a ultrahigh speed mechanical switch, its special card is: it comprises the composite bushing (2) with conducting rod, the upper static contact seat (7) of combined type contract type structure of contact terminal, the lower fixed contact pedestal (8) of combined type contract type structure of contact terminal, the main conductive circuit that sliding movable contact system and each structure of bridge joint conducting rod (11) form, upper static contact seat (7) and lower fixed contact pedestal (8) are arranged in the airtight Storage Tank (19) that is filled with sulfur hexafluoride gas, upper static contact seat (7) is arranged on lower fixed contact pedestal (8) top, upper static contact seat (7) and lower fixed contact pedestal (8) position are corresponding, between upper static contact seat (7) and lower fixed contact pedestal (8), leave sliding switch fracture, Storage Tank (19) is symmetrical is arranged on bridge joint tank (18) two ends that are filled with sulfur hexafluoride gas, Storage Tank (19) and bridge joint tank (18) UNICOM, Storage Tank (19) forms " H " shape structure with bridge joint tank (18), bridge joint conducting rod (11) is arranged in bridge joint tank (18), and bridge joint conducting rod (11) is connected to form conductive structure with the lower fixed contact pedestal (8) of both sides, sliding movable contact system is arranged on bridge joint tank (18) top, the cross sliding type moving contact (12) at sliding movable contact system two ends puts in Storage Tank (19) and puts in use connection upper static contact seat (7) and lower fixed contact pedestal (8) in the sliding switch fracture between upper static contact seat (7) and lower fixed contact pedestal (8), composite bushing (2) with conducting rod is connected with upper static contact seat (7), and the conducting rod of composite bushing (2) connects binding post (1).
2. ultrahigh speed mechanical switch according to claim 1, its special card is: two cross sliding type moving contacts (12) are the linkage structure of synchronization action, its direction of action is to be inwardly separating brake, outwards, for closing a floodgate, make the horizontal cross motion of sliding contact between upper and lower contact base realize breaking-closing operating.
3. ultrahigh speed mechanical switch according to claim 1, its special card is: upper static contact seat (7) and lower fixed contact pedestal (8) are used the good metal material of conduction also the plane form of employing ± 60-70 ° is relative and form, and the beeline between upper static contact seat (7) and lower fixed contact pedestal (8) is to meet the distance that insulation voltage fracture requires; Sliding moving contact is used the good metal material of conduction and adopts contrary angle with upper and lower a pair of fixed contact pedestal, rely on the horizontal prestressed tension of hydraulic actuating mechanism energy storage that cross sliding type moving contact (12) and upper static contact seat (7) and lower fixed contact pedestal (8) are completely closely contacted when closing of circuit, form the structure of reliable conductive path; Under the operation of hydraulic actuating mechanism, by the high speed horizontal movement of cross sliding type moving contact (12), can carry out the separated of horizontal cross with closed with upper static contact seat (7) and lower fixed contact pedestal (8), realized breaking-closing operating.
4. ultrahigh speed mechanical switch according to claim 1, its special card is: between the upper static contact seat (7) of insulation and lower fixed contact pedestal (8) and cross sliding type moving contact (12) perpendicular separation, use local filling of material that insulation property are superior, the point discharge effect of the short time voltage that elimination may occur in circuit when circuit disjunction state to the generation between two-way fixed contact pedestal perpendicular separation, meets the insulation property that tolerate class rating voltage.
5. ultrahigh speed mechanical switch according to claim 1, its special card is: cross sliding type moving contact (12) is connected with the hydraulic actuating mechanism (14) in sliding movable contact system by insulated tension pole (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320699851.0U CN203536329U (en) | 2013-11-08 | 2013-11-08 | Superspeed mechanical switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320699851.0U CN203536329U (en) | 2013-11-08 | 2013-11-08 | Superspeed mechanical switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203536329U true CN203536329U (en) | 2014-04-09 |
Family
ID=50422509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320699851.0U Withdrawn - After Issue CN203536329U (en) | 2013-11-08 | 2013-11-08 | Superspeed mechanical switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203536329U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103578877A (en) * | 2013-11-08 | 2014-02-12 | 沈阳工业大学 | Ultra-high-speed mechanical switch |
| CN104810200A (en) * | 2015-05-19 | 2015-07-29 | 成都恒科瑞恩智能电气科技有限公司 | Super-quick vacuum switch device |
| CN106206153A (en) * | 2016-08-31 | 2016-12-07 | 华仪电气股份有限公司 | The outdoor bipolar vacuum circuit breaker of railway |
| CN110678951A (en) * | 2017-06-16 | 2020-01-10 | 东芝能源系统株式会社 | DC circuit breaker, mechanical breaking device for DC circuit breaker, and semiconductor breaking device for DC circuit breaker |
-
2013
- 2013-11-08 CN CN201320699851.0U patent/CN203536329U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103578877A (en) * | 2013-11-08 | 2014-02-12 | 沈阳工业大学 | Ultra-high-speed mechanical switch |
| CN104810200A (en) * | 2015-05-19 | 2015-07-29 | 成都恒科瑞恩智能电气科技有限公司 | Super-quick vacuum switch device |
| CN106206153A (en) * | 2016-08-31 | 2016-12-07 | 华仪电气股份有限公司 | The outdoor bipolar vacuum circuit breaker of railway |
| CN106206153B (en) * | 2016-08-31 | 2018-12-14 | 华仪电气股份有限公司 | The bipolar vacuum circuit breaker of outdoor railway |
| CN110678951A (en) * | 2017-06-16 | 2020-01-10 | 东芝能源系统株式会社 | DC circuit breaker, mechanical breaking device for DC circuit breaker, and semiconductor breaking device for DC circuit breaker |
| CN110678951B (en) * | 2017-06-16 | 2021-09-21 | 东芝能源系统株式会社 | DC circuit breaker, mechanical breaking device for DC circuit breaker, and semiconductor breaking device for DC circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140409 Effective date of abandoning: 20150923 |
|
| RGAV | Abandon patent right to avoid regrant |