CN202711999U - Circuit breaker interlocking device for fixed high-voltage switch cabinet - Google Patents
Circuit breaker interlocking device for fixed high-voltage switch cabinet Download PDFInfo
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- CN202711999U CN202711999U CN 201220281237 CN201220281237U CN202711999U CN 202711999 U CN202711999 U CN 202711999U CN 201220281237 CN201220281237 CN 201220281237 CN 201220281237 U CN201220281237 U CN 201220281237U CN 202711999 U CN202711999 U CN 202711999U
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- CN
- China
- Prior art keywords
- circuit breaker
- interlocking device
- hinged
- connecting lever
- voltage fixing
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model discloses a circuit breaker interlocking device for a fixed high-voltage switch cabinet. The device is disposed between a circuit breaker and an operation mechanism of the fixed high-voltage switch cabinet. The device comprises a connecting member, a first connecting lever (10), a transmission shaft (11) and an interlocking board (14), wherein the transmission shaft (11) is hinged to the fixed high-voltage switch cabinet; one end of the transmission shaft (11) is interlinked with the interlocking board (14) and the operation handle (2) of the operation mechanism; the other end of the transmission shaft (11) is fixedly linked with one end of the first connecting lever (10); the other end of the first connecting lever (10) is hinged to one end of the connecting member; the other end of the connecting member is provided with a sliding chute (7a); and a second connecting lever (16) fixedly linked with a circuit breaker tripping shaft (4) is hinged to the sliding chute (7a) and slides along the chute. According to the circuit breaker interlocking device, mechanical interlocking between the circuit breaker and the operation mechanism is realized, and misoperation when the fixed high-voltage switch cabinet is used for performing power transmission and power cut can be effectively prevented.
Description
Technical field
The utility model relates to high-voltage fixing cabinet, specifically a kind of circuit breaker interlocking device of high-voltage fixing cabinet.
Background technology
Fixed high-voltage switch cubicle, being called for short high-voltage fixing cabinet is an important composition classification of electric power system high-voltage switch equipment, it has the functions such as built on stilts line, cable incoming-outgoing wire, bus contact.As shown in Figure 1, high-voltage fixing cabinet commonly used is comprised of cabinet and circuit breaker 5 major parts, wherein cabinet is provided with operating mechanism 1, operating mechanism 1 has work, maintenance and three positions of disjunction locking, switch to successively work, maintenance and three positions of disjunction locking by stirring operating grip 2, can control high-voltage fixing cabinet and be in corresponding operating state, operating mechanism 1 is installed on the cabinet by operating mechanism mounting panel 3, and operating mechanism 1 only could operate earthed switch and the isolating switch of high-voltage fixing cabinet at the disjunction locked position of coupler; Circuit breaker 5 is provided with mechanism commonly used, comprises the trip shaft interlock 6 of trip shaft 4, breaker main shaft 15 and energy intertripping axle 4 and breaker main shaft 15, generally also is fixedly connected with connecting lever on the trip shaft 4 of circuit breaker 5, so that external force is rotated trip shaft 4.
The high-voltage fixing cabinet of producing at present is according to " five is anti-" requirement, if will send the electricity operation, must first operating mechanism be placed the disjunction locked position of coupler, earthed switch separately, the normal divide-shut brake of isolating switch this moment, then should first isolating switch be closed a floodgate, again with breaker closing; The operation if having a power failure, before operating mechanism is placed the disjunction locked position of coupler, then should be first with breaker open operation, again with the isolating switch separating brake.But in the production practices of reality, often having the people is the situation of misoperation, operating personnel send when operation electricity will carrying out high-voltage fixing cabinet, before closing isolating switch first with breaker closing, cause the charged isolating switch that closes, perhaps carrying out high-voltage fixing cabinet when having a power failure operation, do not have at circuit breaker to have opened isolating switch in the situation of separating brake, this has all violated " five is anti-" requirement, and such misoperation has stayed the hidden danger that is absolutely unsafe to high voltage switchgear and operations staff.
The utility model content
The purpose of this utility model provides a kind of circuit breaker interlocking device of high-voltage fixing cabinet, the misoperation in the time of can preventing from using high-voltage fixing cabinet to send electricity and power failure.
The purpose of this utility model is achieved through the following technical measures:
A kind of circuit breaker interlocking device of high-voltage fixing cabinet, described circuit breaker interlocking device are arranged between the circuit breaker and operating mechanism of high-voltage fixing cabinet, comprise connector, the first connecting lever, power transmission shaft and interlock plate; Described power transmission shaft is hinged on the high-voltage fixing cabinet, one end of power transmission shaft connects with the operating grip of operating mechanism by described interlock plate, one end of the other end of power transmission shaft and described the first connecting lever connects firmly, one end of the other end of the first connecting lever and described connector is hinged, the other end of connector has the slip conduit, connects firmly to be hinged on the slip conduit and along conduit at the second connecting lever on the circuit breaker tripping axle to slide.
Slip conduit described in the utility model linearly.
The first connecting lever described in the utility model is hinged by split pin and described connector.
For the ease of the installation of circuit breaker interlocking device, described circuit breaker interlocking device also comprises interlocking bearing and the interlock support plate that is fixedly mounted on the high-voltage fixing cabinet; Described power transmission shaft is hinged on the interlock support plate by the interlocking bearing.
In order to mate the difference in height between power transmission shaft and the trip shaft, described connector comprises that the first work that has described slip conduit is inserted, pull bar and second is lived and inserted; Described first slotting and the second slotting being connected in respectively on the two ends of pull bar alive alive, described second is alive slotting hinged with the first connecting lever.
The described in the utility model first alive inserting with the second alive inserting is connected on the two ends of pull bar by threaded engagement respectively.
Compared with prior art, the utlity model has following beneficial effect:
Circuit breaker interlocking device of the present utility model is arranged between the circuit breaker and operating mechanism of high-voltage fixing cabinet, realized the mechanical interlocking between circuit breaker and the operating mechanism, so that switchgear send when operation electricity, by the reliable interlocking between circuit breaker and the operating mechanism, do not allow the circuit breaker can also the disconnecting switch operation divide-shut brake in "on" position, must close first isolating switch, close again circuit breaker; In the power failure process, must divide first circuit breaker, divide again isolating switch, prevent that effectively misoperation from appearring in operating personnel, the more safe and reliable mandatory interlock that satisfies and realized " five is anti-" has effectively been avoided the hidden danger that exists aspect serviceability.
Description of drawings
The utility model is described in further detail below in conjunction with the drawings and specific embodiments:
Fig. 1 is the Facad structure schematic diagram of high-voltage fixing cabinet commonly used;
Fig. 2 is the side-looking structural representation of the high-voltage fixing cabinet of application the utility model circuit breaker interlocking device;
Fig. 3 is the structural representation of facing of the utility model circuit breaker interlocking device;
Fig. 4 is the plan structure schematic diagram of the utility model circuit breaker interlocking device;
Among the figure, 1. operating mechanism, 2. operating grip, 3. operating mechanism mounting panel, 4. trip shaft, 5. circuit breaker, 6. trip shaft interlock 7. first is lived and is inserted, 8. pull bar, 9. second live to insert 10. the first connecting lever, 11. power transmission shafts, 12. the interlocking bearing, 13. interlock support plates, 14. interlock plates, 15. breaker main shaft, 16. second connecting levers.
Embodiment
Shown in Fig. 2 to 4, the circuit breaker interlocking device of high-voltage fixing cabinet of the present utility model is arranged between the circuit breaker and operating mechanism of high-voltage fixing cabinet, comprises connector, the first connecting lever 10, power transmission shaft 11 and interlock plate 14; Power transmission shaft 11 is hinged on the high-voltage fixing cabinet, one end of power transmission shaft 11 connects with the operating grip 2 of operating mechanism by interlock plate 14, one end of the other end of power transmission shaft 11 and the first connecting lever 10 connects firmly, one end of the other end of the first connecting lever 10 and connector is hinged, the other end of connector has slip conduit 7a, connects firmly to be hinged on the slip conduit 7a and along conduit at the second connecting lever 16 on the circuit breaker tripping axle 4 to slide.
Wherein, slip conduit 7a can linearly arrange.The first connecting lever 10 can be hinged by split pin and connector.
For the ease of the installation of circuit breaker interlocking device, circuit breaker interlocking device also comprises interlocking bearing 12 and the interlock support plate 13 that is fixedly mounted on the high-voltage fixing cabinet; Power transmission shaft 11 is hinged on the interlock support plate 13 by interlocking bearing 12.Wherein, interlock support plate 13 can be fixedly mounted on the operating mechanism mounting panel 3 of high-voltage fixing cabinet.
In order to mate the difference in height between power transmission shaft 11 and the trip shaft 4, above-mentioned connector can adopt following structure to realize: it comprise have first of slip conduit 7a live insert 7, pull bar 8 and second lives and inserts 9; First alive slotting 7 and second alive slotting 9 is connected in respectively on the two ends of pull bar 8, and second slotting the 9 and first connecting lever 10 alive is hinged.
Wherein, first alive slotting 7 and second alive slotting 9 can be connected on the two ends of pull bar 8 by threaded engagement respectively.
Operation principle of the present utility model is:
When operating grip 2 when rotate maintenance, work and three positions of disjunction locking, drive the first connecting lever 10 by power transmission shaft 11 and realize circular motion, so drive first live insert 7, pull bar 8, second lives and inserts 9 connectors that form and move up and down.
When operating grip 2 forwards the disjunction locked position of coupler to, by transmission, connector moves downward, by the second connecting lever 16 trip shaft 4 of circuit breaker is left behind, circuit breaker is realized threading off, this moment, circuit breaker can not close a floodgate, finish and send the electricity operation, must first the operating mechanism handle be rotated away from the disjunction locked position of coupler to the service position after finishing the isolating switch combined floodgate, connector moves upward, the trip shaft 4 of circuit breaker comes back to original position, remove again the circuit breaker that closes a floodgate, finish safety and send electricity, prevented so charged misoperation of closing isolating switch.
After sending electricity, need to have a power failure, breaker main shaft 15 is by self steel wire rope interlocking locking trip shaft 4 during because of breaker closing, and the trip shaft 4 of locking simultaneously also so that the connector that joins with it can't move downward, locked power transmission shaft 11, so that operating grip 2 can't turn to the disjunction locked position of coupler, isolating switch is divide-shut brake normally, finish the operation that has a power failure, necessary first separating brake circuit breaker, the state so that operating grip 2 unlocks forwards the disjunction locked position of coupler to, removes to open isolating switch again, finish safe power failure, prevented misoperation.
Execution mode of the present utility model is not limited to this; under the above-mentioned basic fundamental thought of the utility model prerequisite; according to modification, replacement or the change to the utility model other various ways that content is made of the ordinary skill knowledge of this area and customary means, all within the utility model rights protection scope.
Claims (6)
1. the circuit breaker interlocking device of a high-voltage fixing cabinet, it is characterized in that: described circuit breaker interlocking device is arranged between the circuit breaker and operating mechanism of high-voltage fixing cabinet, comprises connector, the first connecting lever (10), power transmission shaft (11) and interlock plate (14); Described power transmission shaft (11) is hinged on the high-voltage fixing cabinet, one end of power transmission shaft (11) connects with the operating grip (2) of operating mechanism by described interlock plate (14), one end of the other end of power transmission shaft (11) and described the first connecting lever (10) connects firmly, the other end of the first connecting lever (10) and an end of described connector are hinged, the other end of connector has slip conduit (7a), and connecting firmly the second connecting lever (16) on circuit breaker tripping axle (4), to be hinged on slip conduit (7a) upper and slide along conduit.
2. the circuit breaker interlocking device of high-voltage fixing cabinet according to claim 1, it is characterized in that: described slip conduit (7a) linearly.
3. the circuit breaker interlocking device of high-voltage fixing cabinet according to claim 1, it is characterized in that: described the first connecting lever (10) is hinged by split pin and described connector.
4. the circuit breaker interlocking device of high-voltage fixing cabinet according to claim 1 is characterized in that: described circuit breaker interlocking device also comprises interlocking bearing (12) and is fixedly mounted on interlock support plate (13) on the high-voltage fixing cabinet; Described power transmission shaft (11) is hinged on the interlock support plate (13) by interlocking bearing (12).
5. according to claim 1 to the circuit breaker interlocking device of 4 each described high-voltage fixing cabinets, it is characterized in that: described connector comprises the first (7), pull bar (8) and the second insert (9) alive of inserting alive that have described slip conduit (7a); Described first slotting (7) alive and the second insert (9) alive are connected in respectively on the two ends of pull bar (8), and described second slotting (9) alive and the first connecting lever (10) are hinged.
6. the circuit breaker interlocking device of high-voltage fixing cabinet according to claim 5 is characterized in that: described first lives inserts (7) and second and lives and insert (9) and be connected on the two ends of pull bar (8) by threaded engagement respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220281237 CN202711999U (en) | 2012-06-14 | 2012-06-14 | Circuit breaker interlocking device for fixed high-voltage switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220281237 CN202711999U (en) | 2012-06-14 | 2012-06-14 | Circuit breaker interlocking device for fixed high-voltage switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202711999U true CN202711999U (en) | 2013-01-30 |
Family
ID=47592278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220281237 Expired - Lifetime CN202711999U (en) | 2012-06-14 | 2012-06-14 | Circuit breaker interlocking device for fixed high-voltage switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202711999U (en) |
-
2012
- 2012-06-14 CN CN 201220281237 patent/CN202711999U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130130 |
|
| CX01 | Expiry of patent term |