CN216597483U - Electric isolating switch for 10kV pole-mounted circuit breaker - Google Patents
Electric isolating switch for 10kV pole-mounted circuit breaker Download PDFInfo
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- CN216597483U CN216597483U CN202220164112.0U CN202220164112U CN216597483U CN 216597483 U CN216597483 U CN 216597483U CN 202220164112 U CN202220164112 U CN 202220164112U CN 216597483 U CN216597483 U CN 216597483U
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- isolator
- interlocking
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Abstract
The utility model relates to the field of electric isolating switches, and discloses an electric isolating switch for a 10kV pole-mounted circuit breaker, which comprises a pole-mounted circuit breaker, interlocking lever and isolator, isolator sets up the one side at the circuit breaker on the post, the interlocking lever sets up the same one end at circuit breaker on the post and isolator, isolator's one end is provided with interlocking turning arm, the interlocking device of circuit breaker on the post rotates the assembly with the one end of interlocking lever, the other end and the interlocking turning arm of interlocking lever rotate the assembly, the equal fixed mounting of leading-out terminal of circuit breaker on the post has quiet terminal, the even fixed mounting in one side that isolator upper surface kept away from circuit breaker on the post has post insulator, the equal fixed mounting in upper end of post insulator has binding post, isolator's upside is provided with drive assembly, isolator's inside is provided with drive assembly and spacing subassembly, drive assembly and drive assembly are connected the assembly. The device can be electrically operated and has mechanical interlocking and electrical interlocking at the same time.
Description
Technical Field
The utility model relates to an electronic isolator field specifically is an electronic isolator for circuit breaker on 10kV post.
Background
10kV pole-mounted circuit breaker means the circuit breaker of installation and operation on the pole, be used for contact in the electric wire netting, the segmentation, on the branch line, so that improve the power supply reliability of electric wire netting, the main effect is isolation circuit's high pressure, circuit breaker is equipped with isolator usually and forms combined electrical apparatus, equipment and circuit wiring in the electric wire netting are all comparatively complicated, along with long-time use and various external factors of equipment, always will need to have a power failure to various equipment and circuit and overhaul, after the circuit breaker tripping operation, separate isolator, make it have obvious disconnection point, in order to guarantee equipment and maintainer's safety.
The isolating switch commonly used by the 10kV pole-mounted circuit breaker in the existing power distribution network is manual, a person is required to operate the isolating switch on site when power fails at every time, the working efficiency is low, the potential safety hazard that the isolating switch is manually pulled and closed exists, accidents are easy to happen, and in order to solve the problems, the electric isolating switch for the 10kV pole-mounted circuit breaker is provided.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem that proposes in the above-mentioned background art, provide a 10kV electric isolator for circuit breaker on post, but isolator electrically-operated has mechanical interlocking and electrical interlocking simultaneously, makes the maintenance work that has a power failure more swift, high-efficient, has reduced the artificial installation hidden danger that draws, closes isolator.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a 10kV is electronic isolator for circuit breaker on post, including circuit breaker on the post, interlocking lever and isolator, isolator sets up the one side at the circuit breaker on the post, the interlocking lever sets up the same end at circuit breaker and isolator on the post, isolator's one end is provided with the interlocking turning arm, the interlocking device of circuit breaker on the post rotates the assembly with the one end of interlocking lever, the other end and the rotating assembly of interlocking turning arm of interlocking lever, the equal fixed mounting of leading-out terminal of circuit breaker on the post has quiet terminal, the even fixed mounting in one side that isolator upper surface kept away from circuit breaker on the post has post insulator, the equal fixed mounting in upper end of post insulator has binding post, isolator's upside is provided with drive assembly, isolator's inside is provided with drive assembly and spacing subassembly, drive assembly and drive assembly are connected the assembly.
Preferably, isolator includes mechanism case and main shaft, and the mechanism case passes through bolt fixed mounting in one side of post circuit breaker base, and interface channel has evenly been seted up on the upper portion of mechanism case, and the mechanism case rotates through the bearing and installs the main shaft, and main shaft through connection channel, the mechanism case is stretched out to the one end of main shaft, and the side and the interlocking turning arm fixed mounting that the mechanism case was stretched out to the main shaft, and the even fixed mounting in side of main shaft has the drive turning arm, and the drive turning arm is located corresponding interface channel.
Preferably, the transmission assembly comprises an insulating pull rod and an isolating knife, one end of the isolating knife is rotatably assembled with the static terminal through a fastener, the other end of the isolating knife is fitted with the wiring terminal, the upper end of the insulating pull rod is rotatably assembled with the middle of the corresponding isolating knife through a pin shaft, and the lower end of the insulating pull rod is rotatably assembled with the corresponding driving crank arm through a pin shaft.
Preferably, the driving assembly comprises a brake motor, a pinion and a bull gear, a mounting chamber is formed between every two adjacent connecting channels and is formed by the upper wall of the mechanism box, the brake motor is fixedly mounted on the side wall of the mounting chamber, the pinion is fixedly mounted on an output shaft of the brake motor, the bull gear is fixedly mounted on the main shaft, and the pinion and the bull gear are meshed and assembled.
Preferably, the limiting assembly comprises a travel switch, a travel crank arm and an arc limiting plate, the arc limiting plate is fixedly mounted on the side wall of the mounting chamber, the travel switch is fixedly mounted at the two ends of the arc limiting plate, the travel crank arm is fixedly mounted on the main shaft, and the travel crank arm is located between the travel switches at the two ends.
Preferably, one end of the mechanism box is provided with a manual operating rod, and the end face of the spindle extending out of the mechanism box is fixedly assembled with the middle part of the manual operating rod.
Preferably, the inside fixed mounting of installation room has electronic isolating switch ware, and the lateral wall of installation room has inlayed and has connect the aviation socket.
Preferably, the lower parts of the mechanism box and the installation chamber are of an opening structure, and a cover plate is installed on the lower part of the installation chamber.
Compared with the prior art, the beneficial effects of the utility model are that:
1) the isolating switch has an electric operation function, so that the overhauling efficiency is greatly improved, and the potential safety hazard of manual operation is reduced;
2) the electric isolating controller enables an electric control loop to be simpler and more reliable, and has the functions of braking motor locked-rotor protection and electric interlocking, so that the isolating switch and the pole-mounted circuit breaker are mechanically interlocked and electrically interlocked, and the operation is safer and more reliable.
Drawings
Fig. 1 is a schematic diagram of a disconnecting switch and a circuit breaker according to an embodiment of the present invention;
fig. 2 is a schematic diagram of the overall assembly of the isolating switch according to the embodiment of the present invention;
fig. 3 is a front view of an isolator assembly according to an embodiment of the present invention;
FIG. 4 is a schematic view of section A-A of FIG. 3;
FIG. 5 is a schematic view of section B-B of FIG. 3;
FIG. 6 is a schematic view of section C-C of FIG. 3;
fig. 7 is a bottom view of the isolator assembly of the present invention.
In the figure: the device comprises a 1-pole circuit breaker, a 2-interlocking rod, a 3-disconnecting switch, a 301-mechanism box, a 302-interlocking crank arm, a 303-manual operating rod, a 304-pillar insulator, a 305-insulating pull rod, a 306-disconnecting knife, a 307-wiring terminal, a 308-static terminal, a 309-spindle, a 310-driving crank arm, a 311-pin shaft, a 312-pinion, a 313-gearwheel, a 314-electric disconnecting controller, a 315-aviation socket, a 316-braking motor, a 317-stroke switch, a 318-stroke crank arm, a 319-arc limiting plate and a 320-cover plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 to 7, the present invention provides a technical solution: an electric isolating switch for a 10kV pole-mounted circuit breaker comprises a pole-mounted circuit breaker 1, an interlocking rod 2 and an isolating switch 3, wherein the isolating switch 3 is arranged on one side of the pole-mounted circuit breaker 1, the interlocking rod 2 is arranged on the same end of the pole-mounted circuit breaker 1 and the isolating switch 3, an interlocking crank arm 302 is arranged at one end of the isolating switch 3, an interlocking mechanism of the pole-mounted circuit breaker 1 is rotatably assembled with one end of the interlocking rod 2, the other end of the interlocking rod 2 is rotatably assembled with the interlocking crank arm 302, and the interlocking cooperation of the interlocking rod 2 and the interlocking crank arm 302 can realize mechanical interlocking between the pole-mounted circuit breaker 1 and the isolating switch 3; the equal fixed mounting of leading-out terminal of circuit breaker 1 has quiet terminal 308 on the post, the even fixed mounting in one side that isolator 3 upper surface kept away from circuit breaker 1 on the post has post insulator 304, the quantity of quiet terminal 308 and post insulator 304 respectively corresponds for three and position that the equidistance distributes, the equal fixed mounting in upper end of post insulator 304 has binding post 307, isolator 3's upside is provided with drive assembly, isolator 3's inside is provided with drive assembly and spacing subassembly, drive assembly and drive assembly are connected the assembly, drive assembly can drive assembly through control, realize the intercommunication or the disconnection between binding post 307 and the quiet terminal 308.
Isolator 3 includes mechanism case 301 and main shaft 309, mechanism case 301 passes through one side of bolt fixed mounting at post circuit breaker 1 base, link channel has evenly been seted up on the upper portion of mechanism case 301, mechanism case 301 rotates through the bearing and installs main shaft 309, main shaft 309 runs through the link channel, mechanism case 301 is spilt to the one end of main shaft 309, main shaft 309 spilt mechanism case 301's side and interlocking connecting lever 302 fixed Assembly, the even fixed mounting in side of main shaft 309 has drive connecting lever 310, drive connecting lever 310 is located the link channel that corresponds, main shaft 309 can positive and negative swing through control, thereby swing interlocking connecting lever 302 and the interior drive connecting lever 310 of link channel.
The transmission assembly comprises an insulating pull rod 305 and an isolating knife 306, one end of the isolating knife 306 is rotatably assembled with a static terminal 308 through a fastener, the other end of the isolating knife 306 is fitted with a wiring terminal 307, a pre-tightening spring is arranged between the fastener and the isolating knife 306, so that the isolating knife 306 has downward swinging pressure to meet the contact pressure when the isolating knife 306 is contacted with the wiring terminal 307, stable conduction of current is realized, the upper end of the insulating pull rod 305 is rotatably assembled with the middle of the corresponding isolating knife 306 through a pin shaft 311, and the lower end of the insulating pull rod 305 is rotatably assembled with a corresponding driving crank arm 310 through the pin shaft 311. When the driving crank arm 310 swings, the isolating blade 306 can swing through the insulating pull rod 305, and the opening and closing actions are completed.
The driving assembly comprises a brake motor 316, a small gear 312 and a large gear 313, an installation chamber is formed between every two adjacent connecting channels and the upper wall of the mechanism box 301, the brake motor 316 is fixedly installed on the side wall of the installation chamber, the small gear 312 is fixedly installed on an output shaft of the brake motor 316, the large gear 313 is fixedly installed on the main shaft 309, the small gear 312 and the large gear 313 are in meshing assembly, and the transmission ratio of the small gear 312 to the large gear is 1: 3. The output shaft of the brake motor can drive the pinion 312 to rotate forward and backward, so that the main shaft 309 is driven by the meshed gearwheel 313 to swing.
The limiting assembly comprises a travel switch 317, a travel crank arm 318 and an arc limiting plate 319, the arc limiting plate 319 is fixedly mounted on the side wall of the mounting chamber, the travel switch 317 is fixedly mounted at two ends of the same side of the arc limiting plate 319, the travel crank arm 318 is fixedly mounted on the spindle 309, and the travel crank arm 318 is located between the travel switches 317 at the two ends. The starting and ending positions of the rotation stroke of the spindle 309 are limited by the swinging of the stroke crank arm 318 along the arc-shaped limit plate 319, thereby striking the two-end stroke switch 317.
One end of the mechanism box 301 is provided with a manual operating rod 303, and the end face of the spindle 309 extending out of the mechanism box 301 is fixedly assembled with the middle part of the manual operating rod 303. During manual operation, the main shaft 309 can be driven to rotate by the manual operating rod 303, so that manual opening and closing operation is completed.
An electric isolating controller 314 is fixedly arranged in the installation chamber, and an aviation socket 315 is embedded in the side wall of the installation chamber. An aviation plug of an external electric circuit extends into the mechanism box 301 and is assembled with an aviation socket 315 in an inserted manner, and the aviation plug is a 10-core aviation plug and plays a role in transmitting an external control signal into the mechanism box and transmitting an internal signal out of the mechanism box; the brake motor 316, the travel switch 317 is electrically connected with the electric isolating controller 314 through the conducting wire, each travel switch 317 has two sets of switching points, one set provides position signals for remote control equipment connected with an external electric circuit, one set provides switch position signals for the electric isolating controller 314, the model of the electric isolating controller 314 is JC77KZ-I (produced by Dalianfeng and electric power technology limited company), the electric isolating controller 314 is connected with the external electric circuit through an aviation socket 315 and an aviation plug, the electric isolating controller 314 is used for controlling the forward and reverse rotation of the brake motor 316 and has an electric interlocking function and an anti-rotation blocking function, and the electric isolating controller 314 can immediately brake the brake motor 316 when the operation of the brake motor 316 is blocked (such as not in place installation or the brake mechanism is blocked) to achieve a protection condition.
The lower parts of the mechanism case 301 and the installation chamber are open structures, and a cover plate 320 is installed on the lower part of the installation chamber. The cover plate 320 enables the driving assembly, the limiting assembly, the electric isolation controller 314 and the aviation socket 315 to be completely sealed in the installation chamber, the influence of external environmental factors is reduced, and the system can run more stably and reliably.
One specific application of this embodiment is:
the driving component drives the transmission component to enable the isolation knife 306 to be connected with the wiring terminal 307 and the static terminal 308 to realize closing; when the brake is required to be opened, the brake motor 316 is controlled to rotate forwards through the electric isolating controller 314, the pinion 312 and the bull gear 313 rotate the spindle 309 until the stroke crank arm 318 is contacted with the upper end stroke switch 317 along the arc limiting plate 319, meanwhile, the spindle 309 drives the driving crank arm 310 to swing upwards, the isolating knife 306 is jacked up through the insulating pull rod 305, one end of the isolating knife 306 swings with the fastening piece at the static terminal 308 as an axis, the other end of the isolating knife 306 is separated from the wiring terminal 307, meanwhile, the spindle 309 drives the interlocking crank arm 302 to swing downwards, and mechanical interlocking is achieved through the interlocking mechanism of the interlocking rod 2 and the pole-mounted circuit breaker 1; when the switch is switched on again, the brake motor 316 is controlled to rotate reversely, and after the transmission, the wiring terminal 307 and the static terminal 308 are communicated again; the manual opening and closing operation can be completed by rotating the main shaft 309 through the manual operating rod 303.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. The utility model provides a 10kV is electronic isolator for circuit breaker on post, includes circuit breaker (1), interlocking lever (2) and isolator (3) on the post, its characterized in that: isolator (3) set up the one side of circuit breaker (1) on the post, interlocking lever (2) set up the same one end of circuit breaker (1) and isolator (3) on the post, the one end of isolator (3) is provided with interlocking turning arm (302), the interlocking device of circuit breaker (1) on the post rotates the assembly with the one end of interlocking lever (2), the other end and interlocking turning arm (302) of interlocking lever (2) rotate the assembly, the equal fixed mounting of leading-out terminal of circuit breaker (1) has quiet terminal (308) on the post, the even fixed mounting in one side of circuit breaker (1) on the post is kept away from on isolator (3) upper surface has post insulator (304), the equal fixed mounting in upper end of post insulator (304) has binding post (307), the upside of isolator (3) is provided with drive assembly, the inside of isolator (3) is provided with drive assembly and spacing subassembly, drive assembly and drive assembly are connected the assembly.
2. The electrical disconnector of claim 1, wherein the disconnector comprises: isolator (3) are including mechanism case (301) and main shaft (309), mechanism case (301) pass through bolt fixed mounting in one side of post circuit breaker (1) base, the connecting channel has evenly been seted up on the upper portion of mechanism case (301), main shaft (309) are installed in mechanism case (301) through the bearing rotation, main shaft (309) run through connecting channel, mechanism case (301) are spilt to the one end of main shaft (309), the side and interlocking turning arm (302) fixed mounting that mechanism case (301) were spilt to main shaft (309), the even fixed mounting in side of main shaft (309) has drive turning arm (310), drive turning arm (310) are located the connecting channel who corresponds.
3. The electrical disconnector of claim 2, wherein the disconnector comprises: the transmission assembly comprises an insulating pull rod (305) and an isolating knife (306), one end of the isolating knife (306) is rotatably assembled with a static terminal (308) through a fastener, the other end of the isolating knife (306) is fitted and assembled with a wiring terminal (307), the upper end of the insulating pull rod (305) is rotatably assembled with the middle of the corresponding isolating knife (306) through a pin shaft (311), and the lower end of the insulating pull rod (305) is rotatably assembled with a corresponding driving crank arm (310) through a pin shaft (311).
4. The electrical disconnector of claim 2, wherein the disconnector comprises: the driving assembly comprises a brake motor (316), a pinion (312) and a bull gear (313), an installation chamber is formed between every two adjacent connecting channels and is formed by the upper wall of the mechanism box (301), the brake motor (316) is fixedly installed on the side wall of the installation chamber, the pinion (312) is fixedly installed on an output shaft of the brake motor (316), the bull gear (313) is fixedly installed on the main shaft (309), and the pinion (312) and the bull gear (313) are meshed and assembled.
5. The electrical disconnector according to claim 4, wherein said disconnector comprises: the limiting assembly comprises a travel switch (317), a travel crank arm (318) and arc limiting plates (319), the arc limiting plates (319) are fixedly mounted on the side wall of the mounting chamber, the travel switches (317) are fixedly mounted at the two ends of the same side of the arc limiting plates (319), the travel crank arm (318) is fixedly mounted on the spindle (309), and the travel crank arm (318) is located between the travel switches (317) at the two ends.
6. The electrical disconnector of claim 2, wherein the disconnector comprises: one end of the mechanism box (301) is provided with a manual operating rod (303), and the end face of the main shaft (309) extending out of the mechanism box (301) is fixedly assembled with the middle part of the manual operating rod (303).
7. The electrical disconnector according to claim 5, wherein said disconnector comprises: an electric isolating controller (314) is fixedly installed inside the installation chamber, and an aviation socket (315) is embedded in the side wall of the installation chamber.
8. The electrical disconnector of claim 2, wherein the disconnector comprises: the lower parts of the mechanism box (301) and the installation chamber are of open structures, and a cover plate (320) is installed on the lower part of the installation chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220164112.0U CN216597483U (en) | 2022-01-21 | 2022-01-21 | Electric isolating switch for 10kV pole-mounted circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220164112.0U CN216597483U (en) | 2022-01-21 | 2022-01-21 | Electric isolating switch for 10kV pole-mounted circuit breaker |
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| Publication Number | Publication Date |
|---|---|
| CN216597483U true CN216597483U (en) | 2022-05-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220164112.0U Active CN216597483U (en) | 2022-01-21 | 2022-01-21 | Electric isolating switch for 10kV pole-mounted circuit breaker |
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| CN (1) | CN216597483U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118116765A (en) * | 2024-03-18 | 2024-05-31 | 信尔德科技有限公司 | Electric isolation device |
| WO2024149021A1 (en) * | 2023-04-03 | 2024-07-18 | 中国电力科学研究院有限公司 | Intelligent outdoor combination electrical device for grid-connected and off-grid control protection of medium-voltage microgrid |
-
2022
- 2022-01-21 CN CN202220164112.0U patent/CN216597483U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024149021A1 (en) * | 2023-04-03 | 2024-07-18 | 中国电力科学研究院有限公司 | Intelligent outdoor combination electrical device for grid-connected and off-grid control protection of medium-voltage microgrid |
| CN118116765A (en) * | 2024-03-18 | 2024-05-31 | 信尔德科技有限公司 | Electric isolation device |
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