CN211183104U - C with quick separating brake function4F7N-CO2Gas insulation ring main unit - Google Patents
C with quick separating brake function4F7N-CO2Gas insulation ring main unit Download PDFInfo
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- CN211183104U CN211183104U CN201921840437.0U CN201921840437U CN211183104U CN 211183104 U CN211183104 U CN 211183104U CN 201921840437 U CN201921840437 U CN 201921840437U CN 211183104 U CN211183104 U CN 211183104U
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- ring main
- insulation ring
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Abstract
The utility model provides a pair of C with quick separating brake function4F7N‑CO2Gas-insulated looped netowrk cabinet. The gas insulation ring main unit comprises a circuit breaker and an isolation-grounding switch, wherein each phase of arc extinguish chamber of the circuit breaker is independently provided with a monostable permanent magnet operating mechanism, and a transmission rod of the monostable permanent magnet operating mechanism is vertically connected with each phase of arc extinguish chamber of the circuit breaker; circuit breaker, isolation-grounding switch and monostable permanent magnet operationThe mechanisms are sealed in the box body of the gas insulation ring main unit; the box body of the gas insulation ring main unit is filled with a material C4F7N and CO2The mixed gas of (A) and (B) is an environment-friendly gas. The beneficial effects are as follows: the box body of the gas insulation ring main unit of the utility model is filled with a gas filled4F7N and CO2The environment-friendly gas has high electrical performance and can effectively avoid the prior SF6The air-filled cabinet brings about greenhouse effect and no ozone consumption effect.
Description
Technical Field
The utility model relates to a gas insulation looped netowrk cabinet especially relates to a C with quick separating brake function4F7N-CO2Gas-insulated looped netowrk cabinet.
Background
Sulfur hexafluoride (SF)6) Has excellent insulating and arc extinguishing performance and is widely applied to gas-insulated electrical equipment. SF6Is a chemically highly stable, high temperature chamber effect insulating medium, SF6Has a greenhouse effect potential value (GWP) of CO223500 times of that of the active ingredient, and the survival life in the atmosphere is 3200 years. To date, SF in the atmosphere6The content of gases increases at a rate of 8.7% per year, and the total emission of gases in greenhouse gases has exceeded 15%. SF for power industry6Gas usage accounts for global SF6The major part of the total gas usage, the emission of which is also in the global SF6The ratio of the total gas emission is the largest. In 1997, the book of Kyoto protocol has specifically recognized SF6The gas is one of 6 kinds of gas which is used in the world in a limited way, and developed countries are required to freeze the discharge amount of greenhouse gas firstlyAt the level of the 90 s of the 20 th century, a fundamental limitation of SF by 2020 was required6The use of a gas. To reduce or even eliminate SF6Use of gas, SF in recent years6The gas substitution technology becomes one of the research hotspots of experts and scholars at home and abroad.
Therefore, an SF-free composition was developed6The gas insulation ring main unit is very necessary.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a C with quick separating brake function4F7N-CO2The gas insulation ring main unit has the technical scheme that:
the gas insulation ring main unit comprises a circuit breaker and an isolation-grounding switch, wherein each phase of arc extinguish chamber of the circuit breaker is independently provided with a monostable permanent magnet operating mechanism, and a transmission rod of the monostable permanent magnet operating mechanism is vertically connected with each phase of arc extinguish chamber of the circuit breaker; the circuit breaker, the isolation-grounding switch and the monostable permanent magnet operating mechanism are all sealed in a box body of the gas insulation ring main unit; the box body of the gas insulation ring main unit is filled with a material C4F7N and CO2The mixed gas of (A) and (B) is an environment-friendly gas.
The utility model provides a pair of C with quick separating brake function4F7N-CO2The gas insulation ring main unit also comprises the following auxiliary technical scheme:
wherein, a box body of the gas insulation ring main unit is filled with C4F7N and CO2The pressure of the environment-friendly gas consisting of the mixed gas is 0.1M-0.16Pa, and C4F7The volume fraction of N is 18-26%.
The operating mechanism of the isolation-grounding switch and the manual separation mechanism of the circuit breaker are both arranged outside the box body of the gas insulation ring main unit.
And connectors for realizing side connection and expansion functions are arranged on two inner side walls of the box body of the gas insulation ring main unit.
And the box body of the gas insulation ring main unit is also provided with a gas density meter and an explosion-proof pressure relief device.
Wherein, the isolation-grounding switch is a three-position isolation switch.
Shaft seal assemblies are arranged between the isolation-grounding switch and the box body of the gas insulation ring main unit and between the circuit breaker and the box body of the gas insulation ring main unit.
Wherein, the circuit breaker adopts vacuum arc extinction.
The utility model discloses an implement including following technological effect:
the utility model provides a pair of C with quick separating brake function4F7N-CO2The gas insulation ring main unit has electric and manual switching-on and switching-off functions and simultaneously has a grounding switching-on and switching-off function; furthermore, the utility model provides a C4F7N-CO2In the gas insulation ring main unit, each phase arc extinguish chamber of the three-phase permanent magnet circuit breaker is respectively and independently provided with a monostable permanent magnet operating mechanism in the box body, a transmission rod of each monostable permanent magnet operating mechanism is vertically connected with each phase arc extinguish chamber, when the switching-on and switching-off operation is carried out, a permanent magnet driver synchronously powers on the three-phase monostable permanent magnet operating mechanisms, the three monostable permanent magnet operating mechanisms respectively drive one phase arc extinguish chamber to complete the switching-on and switching-off actions, because each monostable permanent magnet operating mechanism is directly connected with the arc extinguish chamber in a direct action mode, compared with a crank arm and four-bar transmission mode of a conventional circuit breaker, the transmission structure of the connection mode is simpler, the switching-on and switching-off operation force of the monostable permanent magnet operating mechanisms directly acts on the arc extinguish chambers, the energy loss in the transmission process is low, and the transmission.
Therefore, the utility model provides a pair of C4F7N-CO2In the gas insulation ring main unit, a monostable permanent magnet operating mechanism is independently arranged on each phase arc extinguish chamber of a three-phase direct-acting permanent magnet circuit breaker to carry out switching on and off, so that the inherent switching-off time of the circuit breaker is less than or equal to 5ms and the switching-off time is less than or equal to 15ms when the circuit breaker carries out switching-on and switching-off operations, which cannot be achieved by conventional circuit breaker products. Further, the utility model provides a pair of C with quick separating brake function4F7N-CO2The gas insulation ring main unit is small in occupied area, high in protection level, suitable for operation in high-altitude areas and the like and convenient to maintain and install.
Furthermore, the box body of the gas insulation ring main unit of the utility model is filled with a gas filled4F7N and CO2The environment-friendly gas has high electrical performance and can effectively avoid the prior SF6The air-filled cabinet brings about greenhouse effect and no ozone consumption effect.
Drawings
Figure 1 is the utility model discloses a C with quick separating brake function4F7N-CO2The structure schematic diagram of the gas insulation ring main unit.
In the figure, 1-a circuit breaker, 2-an isolation-grounding switch, 3-a monostable permanent magnet operating mechanism, 4-a box body of a gas insulation ring main unit, 11-a hand separating mechanism and 21-an operating mechanism.
Detailed Description
The present invention will be described in detail with reference to the following embodiments and the accompanying drawings, wherein the described embodiments are only intended to facilitate the understanding of the present invention, and do not limit the present invention in any way.
The orientations described in the present application, such as up, down, left, right, and left, are convenient to use and described with reference to the drawings, and do not limit the scope of protection.
The utility model provides a pair of C with quick separating brake function4F7N-CO2A gas-insulated ring main unit, as shown in fig. 1, the gas-insulated ring main unit includes a circuit breaker 1 and an isolation-grounding switch 2, each phase arc-extinguishing chamber of the circuit breaker 1 is separately provided with a monostable permanent magnetic operating mechanism 3, and a transmission rod of the monostable permanent magnetic operating mechanism is vertically connected with each phase arc-extinguishing chamber of the circuit breaker; the circuit breaker 1, the isolation-grounding switch 2 and the monostable permanent magnet operating mechanism 3 are all sealed in a box body 4 of the gas insulation ring main unit, and the box body 4 of the gas insulation ring main unit is filled with a circuit breaker C4F7N and CO2A mixed gas of the components; the circuit breaker adopts vacuum arc extinction; wherein the isolation-ground switchAnd the switch is a three-position isolating switch.
The conventional circuit breaker is generally externally provided with a permanent magnet operating mechanism, and the permanent magnet operating mechanism is connected with a transmission main shaft through shaft seal. The transmission main shaft is connected with the A/B/C three-phase arc extinguishing chamber through a crank arm, a connecting rod and the like; when the switching-on and switching-off operation is carried out, the permanent magnet operating mechanism is electrified to drive the transmission main shaft to rotate, so that the A/B/C three-phase arc extinguishing chambers are driven to jointly complete the switching-on and switching-off operation.
The utility model provides a pair of C with quick separating brake function4F7N-CO2The gas insulation ring main unit has electric and manual switching-on and switching-off functions and simultaneously has a grounding switching-on and switching-off function; furthermore, the utility model provides a C4F7N-CO2In the gas insulation ring main unit, each phase arc extinguish chamber of the three-phase permanent magnet circuit breaker is respectively and independently provided with a monostable permanent magnet operating mechanism in the box body, a transmission rod of each monostable permanent magnet operating mechanism is vertically connected with each phase arc extinguish chamber, when the switching-on and switching-off operation is carried out, a permanent magnet driver synchronously powers on the three-phase monostable permanent magnet operating mechanisms, the three monostable permanent magnet operating mechanisms respectively drive one phase arc extinguish chamber to complete the switching-on and switching-off actions, because each monostable permanent magnet operating mechanism is directly connected with the arc extinguish chamber in a direct action mode, compared with a crank arm and four-bar transmission mode of a conventional circuit breaker, the transmission structure of the connection mode is simpler, the switching-on and switching-off operation force of the monostable permanent magnet operating mechanisms directly acts on the arc extinguish chambers, the energy loss in the transmission process is low, and the transmission.
Thus, this embodiment provides C4F7N-CO2In the gas insulation ring main unit, a monostable permanent magnet operating mechanism is independently arranged on each phase arc extinguish chamber of a three-phase direct-acting permanent magnet circuit breaker to carry out switching on and off, so that the inherent switching-off time of the circuit breaker is less than or equal to 5ms and the switching-off time is less than or equal to 15ms when the circuit breaker carries out switching-on and switching-off operations, which cannot be achieved by conventional circuit breaker products. Further, the utility model provides a pair of C with quick separating brake function4F7N-CO2The gas insulation ring main unit has small occupied area and high protection level and is suitable for useOperation, convenient maintenance and installation in high altitude areas and the like.
Furthermore, the box body of the gas insulation ring main unit of the utility model is filled with a gas filled4F7N and CO2The environment-friendly gas has high electrical performance and can effectively avoid the prior SF6The air-filled cabinet brings about greenhouse effect and no ozone consumption effect.
Preferably, C is arranged in the box body of the gas insulation ring main unit4F7N and CO2The pressure of the environment-friendly gas consisting of the mixed gas is 0.10-0.16MPa, and C is4F7The volume fraction of N is 18-26%. More preferably, C is arranged in the box body of the gas insulation ring main unit4F7N and CO2The pressure of the environment-friendly gas consisting of the mixed gas is 0.13MPa, and C is4F7The volume fraction of N was 22%.
The box body of the gas insulation ring main unit is made of stainless steel.
Preferably, as shown in fig. 1, the operating mechanism 21 of the disconnecting-grounding switch 2 and the manual opening mechanism 11 of the circuit breaker 1 are both disposed outside the box body 4 of the gas insulated ring main unit.
Preferably, the inner side walls of the two boxes 4 of the gas insulation ring main unit are both provided with connectors for realizing side connection and expansion functions.
Preferably, a gas density meter and an explosion-proof pressure relief device are further arranged on the box body 4 of the gas insulation ring main unit.
Preferably, shaft seal assemblies are respectively arranged between the isolation-grounding switch 2 and the box body 4 of the gas-insulated ring main unit, and between the circuit breaker 1 and the box body 4 of the gas-insulated ring main unit, and the shaft seal assemblies are used for connecting the isolation-grounding switch 2 and the box body 4 of the gas-insulated ring main unit, and are used for connecting the circuit breaker 1 and the box body 4 of the gas-insulated ring main unit.
It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention, and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.
Claims (7)
1. C with quick separating brake function4F7N-CO2The gas insulation ring main unit is characterized by comprising a circuit breaker and an isolation-grounding switch, wherein each phase of arc extinguish chamber of the circuit breaker is independently provided with a monostable permanent magnet operating mechanism, and a transmission rod of the monostable permanent magnet operating mechanism is vertically connected with each phase of arc extinguish chamber of the circuit breaker; the circuit breaker, the isolation-grounding switch and the monostable permanent magnet operating mechanism are all sealed in a box body of the gas insulation ring main unit; the box body of the gas insulation ring main unit is filled with a material C4F7N and CO2The mixed gas of (1) to form an environment-friendly gas;
the box body of the gas insulation ring main unit is filled with C4F7N and CO2The pressure of the environment-friendly gas consisting of the mixed gas is 0.1M-0.16 Pa.
2. C with quick opening function according to claim 14F7N-CO2Gas insulation looped netowrk cabinet, its characterized in that: the operating mechanism of the isolation-grounding switch and the manual separation mechanism of the circuit breaker are both arranged outside the box body of the gas insulation ring main unit.
3. C with quick opening function according to claim 14F7N-CO2Gas insulation looped netowrk cabinet, its characterized in that: and connectors for realizing side connection and expansion functions are arranged on two inner side walls of the box body of the gas insulation ring main unit.
4. C with quick opening function according to claim 14F7N-CO2Gas insulated ring networkCabinet, its characterized in that: and a gas density meter and an explosion-proof pressure relief device are also arranged on the box body of the gas insulation ring main unit.
5. C with quick opening function according to claim 14F7N-CO2Gas insulation looped netowrk cabinet, its characterized in that: the isolation-grounding switch is a three-position isolation switch.
6. C with quick opening function according to claim 14F7N-CO2Gas insulation looped netowrk cabinet, its characterized in that: shaft seal assemblies are arranged between the isolation-grounding switch and the box body of the gas insulation ring main unit and between the circuit breaker and the box body of the gas insulation ring main unit.
7. C with quick opening function according to claim 14F7N-CO2Gas insulation looped netowrk cabinet, its characterized in that: the circuit breaker adopts vacuum arc extinction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921840437.0U CN211183104U (en) | 2019-10-30 | 2019-10-30 | C with quick separating brake function4F7N-CO2Gas insulation ring main unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921840437.0U CN211183104U (en) | 2019-10-30 | 2019-10-30 | C with quick separating brake function4F7N-CO2Gas insulation ring main unit |
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| Publication Number | Publication Date |
|---|---|
| CN211183104U true CN211183104U (en) | 2020-08-04 |
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|---|---|---|---|
| CN201921840437.0U Active CN211183104U (en) | 2019-10-30 | 2019-10-30 | C with quick separating brake function4F7N-CO2Gas insulation ring main unit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110707585A (en) * | 2019-10-30 | 2020-01-17 | 北京科锐配电自动化股份有限公司 | C with quick separating brake function4F7N-CO2Gas insulation ring main unit |
| CN118156078A (en) * | 2024-03-13 | 2024-06-07 | 扬州新概念电气有限公司 | Small-size environmental protection gas-insulated quick looped netowrk cabinet based on split phase is followed combined floodgate technique |
-
2019
- 2019-10-30 CN CN201921840437.0U patent/CN211183104U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110707585A (en) * | 2019-10-30 | 2020-01-17 | 北京科锐配电自动化股份有限公司 | C with quick separating brake function4F7N-CO2Gas insulation ring main unit |
| CN118156078A (en) * | 2024-03-13 | 2024-06-07 | 扬州新概念电气有限公司 | Small-size environmental protection gas-insulated quick looped netowrk cabinet based on split phase is followed combined floodgate technique |
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