CN210489509U - Novel vacuum circuit breaker pole - Google Patents
Novel vacuum circuit breaker pole Download PDFInfo
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- CN210489509U CN210489509U CN201920486787.5U CN201920486787U CN210489509U CN 210489509 U CN210489509 U CN 210489509U CN 201920486787 U CN201920486787 U CN 201920486787U CN 210489509 U CN210489509 U CN 210489509U
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- circuit breaker
- vacuum circuit
- breaker pole
- current sensor
- novel vacuum
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Abstract
The utility model provides a novel vacuum circuit breaker pole, the structure of which comprises a vacuum arc extinguish chamber, an epoxy resin pouring body, a flexible connection, an insulating pull rod assembly, a lower outgoing line, a current sensor, a mutual inductor secondary line, a voltage sensor, a capacitance energy-taking device and a sealing cover, which are integrally poured by an epoxy resin automatic pressure gel process APG, the arrangement of the voltage sensor and the current sensor is increased compared with the traditional pole structure, the current and voltage protection, the measurement and metering equipment and the capacitance energy-taking power supply equipment are deeply fused and integrated with the vacuum arc extinguish chamber, and the structural design is integrated; the protection function of the equipment is enhanced, and meanwhile, the interactivity and the relevance are improved.
Description
Technical Field
The utility model relates to a novel vacuum circuit breaker utmost point post belongs to electrical equipment technical field.
Background
The outdoor vacuum circuit breaker has overload, short circuit and under-voltage protection functions, has the capacity of protecting circuits and power supplies, is mainly applied to medium-voltage overhead line power grids and is used for dividing and combining load current, overload current and short circuit current. The vacuum circuit breaker pole is an integral component formed by simultaneously embedding the vacuum arc-extinguishing chamber and the related conductive parts of the circuit breaker into easily-cured solid insulating materials such as epoxy resin or thermoplastic materials, so that the size of the circuit breaker can be reduced, and the miniaturization of a switch cabinet is facilitated.
In the current electric power system, because the boundary between the secondary and primary equipment industries is less and less obvious, partial functions of the secondary equipment are gradually transferred into the primary equipment and are fused into a more integrated intelligent unit. The traditional pole column structure of the vacuum circuit breaker does not have the functions of intelligent information monitoring and line fault judgment, and can not meet the construction requirements of a modern intelligent power system gradually; meanwhile, various sensors need to be additionally installed on a construction site for a traditional breaker pole, an additional line is built, construction workload can be increased, installation and operation cost is improved, normal operation of a power system can be influenced if a wiring fault occurs, and troubleshooting is difficult.
Disclosure of Invention
An object of the utility model is to overcome above-mentioned prior art's defect, provide a novel vacuum circuit breaker utmost point post for load current and cut off overcurrent and short-circuit current in the closed electric power system. The circuit breaker can be used as a section switch on an urban 12kV power distribution main line, a branch line and a looped network line, and can also be used as an incoming switch in the aspects of rural power grids, industrial and mining enterprises, living communities, construction sites and the like.
The technical solution of the utility model is as follows: a novel vacuum circuit breaker pole structurally comprises a vacuum arc extinguish chamber, an epoxy resin pouring body, a flexible connection, an insulating pull rod assembly, a lower outgoing line, a current sensor, a mutual inductor secondary line, a voltage sensor, a capacitive energy taking device and a sealing cover; the novel vacuum circuit breaker pole structure is integrally cast by an APG (automatic pressure gelation) process through epoxy resin to form an epoxy resin casting body, and a hollow cavity is formed inside the epoxy resin casting body; the vacuum arc extinguish chamber is arranged at the top of the novel vacuum circuit breaker pole, the lower outgoing line is arranged in a novel vacuum circuit breaker pole side cylinder structure, the voltage sensor and the capacitive energy taking device are respectively arranged at the left side and the right side of the lower end in the novel vacuum circuit breaker pole, and the sealing cover is fixed at the bottom of the novel vacuum circuit breaker pole by screws; the bottom of the vacuum arc extinguish chamber is simultaneously connected with the lower outgoing line and the capacitive energy-taking device through flexible connection, and the capacitive energy-taking device and the voltage sensor are both fixed in the pole through screws arranged at the end parts; the outer part of the lower outgoing line is provided with an annular current sensor, and the lower outgoing line passes through a through hole in the center of the current sensor; the current sensor is connected with the capacitive energy-taking device through a secondary line of a mutual inductor at the bottom of the current sensor; the bottom of the vacuum arc extinguish chamber is provided with an insulating pull rod assembly, the top end of the insulating pull rod assembly penetrates through the flexible connection and extends into the vacuum arc extinguish chamber, and the bottom end of the insulating pull rod assembly penetrates through a through hole in the center of the sealing cover.
The utility model has the advantages that:
1) the current and voltage protection, measurement and metering equipment and the single-phase capacitance type energy-taking power supply equipment are deeply fused and integrated with the vacuum arc-extinguishing chamber, and the structural design is integrated;
2) the protection function of the equipment is enhanced, and the interactivity and the relevance are improved;
3) the voltage sensor and the capacitance type energy-taking device adopt a rear-mounted design, are detachable and are maintenance-free.
Drawings
Fig. 1 is the utility model relates to a novel vacuum circuit breaker utmost point post's inner structure schematic diagram.
Fig. 2 is a side view of the structure of a novel vacuum circuit breaker pole.
In the figure, 1.1 is a vacuum arc-extinguishing chamber, 1.2 is an epoxy resin casting body, 1.3 is a flexible connection, 1.4 is an insulating pull rod assembly, 1.5 is a lower outgoing line, 1.6 is a current sensor, 1.7 is a secondary line of a transformer, 1.8 is a voltage sensor, 1.9 is a capacitive energy-taking device, and 1.10 is a sealing cover.
Detailed Description
The following description will further describe the embodiments of the present invention with reference to the drawings. It is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", and the like, are used in the orientation or positional relationship indicated in the drawings based on the specification, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be construed as limiting the present invention.
As shown in fig. 1 and 2, a novel vacuum circuit breaker pole structurally comprises a vacuum arc-extinguishing chamber 1.1, an epoxy resin casting body 1.2, a flexible connection 1.3, a lower outgoing line 1.5, a voltage sensor 1.8, a capacitive energy-taking device 1.9 and a sealing cover 1.10; the novel vacuum circuit breaker pole structure is integrally cast by an epoxy resin automatic pressure gelation process (APG) to form an epoxy resin casting body 1.2, and a hollow cavity is arranged inside the epoxy resin casting body 1.2; the vacuum arc extinguish chamber 1.1 is arranged at the top of a novel vacuum circuit breaker pole, the lower outgoing line 1.5 is arranged in a novel vacuum circuit breaker pole side cylinder structure, the voltage sensor 1.8 and the capacitive energy taking device 1.9 are respectively arranged at the left side and the right side of the lower end in the novel vacuum circuit breaker pole, and the sealing cover 1.10 is fixed at the bottom of the novel vacuum circuit breaker pole by screws; the bottom of vacuum interrupter 1.1 is passed through flexible coupling 1.3 and is simultaneously connected with lower 1.5 and the capacitanc energy taking device 1.9 of being qualified for the next round of competitions, and capacitanc energy taking device 1.9 and voltage sensor 1.8 are all inside fixed in utmost point post through the fix with screw of locating the tip to the screw is lifted off to the accessible, opens closing cap 1.10 and dismantles, maintains when conveniently breaking down.
An annular current sensor 1.6 is arranged outside the lower outgoing line 1.5, and the lower outgoing line 1.5 penetrates through a through hole in the center of the current sensor 1.6; the current sensor 1.6 is connected with the capacitance type energy taking device 1.9 through a mutual inductor secondary line 1.7 at the bottom of the current sensor. The bottom of the vacuum arc-extinguishing chamber 1.1 is provided with an insulating pull rod assembly 1.4, the top end of the insulating pull rod assembly 1.4 penetrates through the flexible connection 1.3 and extends into the vacuum arc-extinguishing chamber 1.1, and the bottom end of the insulating pull rod assembly 1.4 penetrates through a through hole in the center of the sealing cover 1.10.
The current sensor 1.6 comprises a phase current sensor and a zero sequence current sensor, and the voltage sensor 1.8 comprises a phase voltage sensor and a zero sequence voltage sensor; the voltage sensor 1.8 and the capacitance type energy-taking device 1.9 adopt a rear-mounted design, are detachable and are free of maintenance.
The utility model provides a novel vacuum circuit breaker post, which adopts the integration of the current sensor, the voltage sensor and the circuit breaker post structure, saves space, avoids installation and saves construction cost; due to the adoption of integrated installation, primary and secondary wiring of the voltage transformer is finished when leaving a factory, and wiring is not needed during field installation, so that a series of problems caused by wiring errors are avoided; because voltage sensor and current sensor have all been embedded in every solid insulating utmost point post of sealing, can all gather three-phase voltage and three-phase current, consequently can be according to the accurate judgement of the voltage current signal of gathering whether break down takes place, change in the realization of line fault judgement and distribution network automation.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution and the inventive concept of the present invention within the technical scope of the present invention.
Claims (6)
1. A novel vacuum circuit breaker pole is characterized by comprising a vacuum arc extinguish chamber (1.1), an epoxy resin pouring body (1.2), a flexible connection (1.3), a lower wire outlet (1.5), a voltage sensor (1.8), a capacitive energy taking device (1.9) and a sealing cover (1.10); the novel vacuum circuit breaker pole is characterized in that an epoxy resin casting body (1.2) is arranged outside the novel vacuum circuit breaker pole, and a hollow cavity is arranged inside the epoxy resin casting body (1.2); the vacuum arc extinguish chamber (1.1) is arranged at the top of the novel vacuum circuit breaker pole, the lower outgoing line (1.5) is arranged in a novel vacuum circuit breaker pole side cylinder structure, the voltage sensor (1.8) and the capacitive energy taking device (1.9) are respectively arranged at the left side and the right side of the lower end in the novel vacuum circuit breaker pole, and the sealing cover (1.10) is fixed at the bottom of the novel vacuum circuit breaker pole by a screw; the bottom of the vacuum arc-extinguishing chamber (1.1) is simultaneously connected with the lower outgoing line (1.5) and the capacitive energy-taking device (1.9) through the flexible connection (1.3), and the capacitive energy-taking device (1.9) and the voltage sensor (1.8) are fixed inside the pole through screws arranged at the end parts.
2. The novel vacuum circuit breaker pole according to claim 1, characterized in that an annular current sensor (1.6) is arranged outside the lower outgoing line (1.5), and the lower outgoing line (1.5) is arranged through a through hole in the center of the current sensor (1.6); the current sensor (1.6) is connected with the capacitive energy-taking device (1.9) through a transformer secondary wire (1.7) at the bottom of the current sensor.
3. The novel vacuum circuit breaker pole according to claim 1, characterized in that an insulating pull rod assembly (1.4) is arranged at the bottom of the vacuum interrupter (1.1), the top end of the insulating pull rod assembly (1.4) passes through the flexible connection (1.3) and extends into the vacuum interrupter (1.1), and the bottom end of the insulating pull rod assembly (1.4) passes through a through hole in the center of the sealing cover (1.10).
4. A new type of vacuum interrupter pole according to claim 2, characterized in that the current sensor (1.6) comprises a phase current sensor and a zero sequence current sensor.
5. The new vacuum circuit breaker pole according to claim 1, characterized in that said voltage sensor (1.8) comprises a phase voltage sensor and a zero sequence voltage sensor.
6. The novel vacuum circuit breaker pole according to claim 1, characterized in that the voltage sensor (1.8) and the capacitive energy-taking device (1.9) are of a rear-mounted design, detachable and maintenance-free.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920486787.5U CN210489509U (en) | 2019-04-11 | 2019-04-11 | Novel vacuum circuit breaker pole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920486787.5U CN210489509U (en) | 2019-04-11 | 2019-04-11 | Novel vacuum circuit breaker pole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210489509U true CN210489509U (en) | 2020-05-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920486787.5U Active CN210489509U (en) | 2019-04-11 | 2019-04-11 | Novel vacuum circuit breaker pole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210489509U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109904032A (en) * | 2019-04-11 | 2019-06-18 | 数邦电力科技有限公司 | A kind of novel vacuum circuit breaker pole |
| CN114078653A (en) * | 2020-08-11 | 2022-02-22 | 南京南瑞继保电气有限公司 | Solid-sealed polar pole of tubular capacitor |
-
2019
- 2019-04-11 CN CN201920486787.5U patent/CN210489509U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109904032A (en) * | 2019-04-11 | 2019-06-18 | 数邦电力科技有限公司 | A kind of novel vacuum circuit breaker pole |
| CN114078653A (en) * | 2020-08-11 | 2022-02-22 | 南京南瑞继保电气有限公司 | Solid-sealed polar pole of tubular capacitor |
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