CN217405353U - Main circuit with visible isolation fracture and switch cabinet - Google Patents
Main circuit with visible isolation fracture and switch cabinet Download PDFInfo
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- CN217405353U CN217405353U CN202123034009.9U CN202123034009U CN217405353U CN 217405353 U CN217405353 U CN 217405353U CN 202123034009 U CN202123034009 U CN 202123034009U CN 217405353 U CN217405353 U CN 217405353U
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Abstract
The utility model relates to a visual major loop of isolation fracture and cubical switchboard. The main circuit with the visible isolation fracture comprises a circuit breaker and an isolation static contact, the circuit breaker comprises an operating mechanism and a three-phase pole, each phase pole of the three-phase pole is arranged at intervals in the front-back direction, each phase pole is provided with an isolation moving contact matched with the isolation static contact, the circuit breaker is provided with a circuit breaker panel, the circuit breaker further comprises a telescopic valve, the telescopic valve comprises a guide base extending front and back and a telescopic joint arranged on the guide base, the telescopic joint comprises a fixed door fixed at the front end of the guide base and a movable door movably arranged on the guide base in a front-back guide mode, and when the telescopic joint extends, the telescopic valve can cover the isolation static contact; the fixed door is provided with a valve observation port, the circuit breaker panel is provided with a panel observation port which is opposite to the isolation fracture front and back of the isolation moving contact and the isolation fracture corresponding to the isolation static contact, and the panel observation port is opposite to the valve observation port front and back.
Description
Technical Field
The utility model relates to a medium voltage distribution network cubical switchboard field, concretely relates to keep apart visual major loop of fracture and cubical switchboard.
Background
In the field of electrical power distribution, circuit breakers are used primarily for the purpose of intervening in abnormal operating conditions. Typically, circuit breakers are installed in switch cabinets or switch cabinets.
Chinese patent No. CN201655655U discloses a three-phase longitudinally-arranged vacuum circuit breaker, which includes a three-phase pole constituted by three poles, an operating mechanism, a transmission device and a support extension assembly, wherein the operating mechanism and the three-phase pole are sequentially arranged along a front-back direction, the operating mechanism is provided with an operating panel, the three-phase poles are aligned with each other along a plane perpendicular to the operating panel and are arranged on the support extension assembly, the plane perpendicular to the operating panel is mutually perpendicular to the plane of the three-phase pole, and each phase of pole is provided with a moving contact matched with a fixed contact in a switch cabinet. When the circuit breaker is installed in a switch cabinet, when equipment is overhauled, because the cabinet body and the operating panel of the operating mechanism block the observation sight, an operator cannot easily observe the isolated fracture state of the moving contact and the static contact of the three-phase pole, and adverse effects are brought to equipment overhaul and safety operation.
In the prior art, in order to ensure the reliability of a movable contact of a circuit breaker after being separated from a relative fixed contact, a chinese patent with an authorization publication number of CN109138680B discloses a telescopic valve and a switch cabinet using the same, the switch cabinet comprises a cabinet body, the cabinet body is provided with a bus chamber, a three-phase isolated movable contact, the telescopic valve and a circuit breaker chamber which are sequentially arranged from top to bottom, the telescopic valve comprises a guide base, the guide base is provided with a front and back direction which is consistent with the arrangement direction of the main circuit fixed contacts on the switch cabinet corresponding to the movable contact, the guide base is provided with a contact mounting cavity for mounting the main circuit fixed contacts of the switch cabinet, the rear end part of the guide base is provided with a fixed door, the fixed door is sequentially nested with a movable door, the movable door forms a telescopic joint, the bottom of the right side wall of the movable door is provided with a roller and is supported on the guide base by the roller in a rolling manner, when the movable contact is separated from the fixed contact, the valve is stretched to completely shield the fixed contact, so that the fixed contact and the movable contact are separated, and the safety of the circuit breaker is ensured. Because the telescopic valve is located at the front side of the static contact, when the equipment is overhauled, the telescopic valve blocks the overhauling and observing sight line, and the maintainers cannot easily observe the isolated fracture state of the moving contact and the static contact, thereby bringing adverse effects to the equipment overhauling and the safety operation.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a visual major loop of isolation fracture to it is invisible to isolate the fracture with keeping apart the moving contact in the solution prior art, brings adverse effect's technical problem for overhaul of the equipments, security operation. An object of the utility model is to provide a cubical switchboard to a cubical switchboard that keeps apart the static contact and keep apart the moving contact isolation fracture can just be observed to the door of not opening the cabinet is provided.
In order to achieve the above object, the utility model discloses a visual major loop's of isolation fracture technical scheme is:
the main circuit comprises a circuit breaker and an isolation static contact, wherein the circuit breaker comprises an operating mechanism and a three-phase pole, each phase pole of the three-phase pole is arranged at intervals in the front-back direction, each phase pole is provided with an isolation moving contact adaptive to the isolation static contact, the circuit breaker is provided with a circuit breaker panel, the circuit breaker further comprises a telescopic valve, the telescopic valve comprises a guide base extending forwards and backwards and a telescopic joint arranged on the guide base, the telescopic valve is used for covering the isolation static contact when the isolation moving contact is separated from the isolation static contact, the telescopic joint comprises a fixed door fixed at the front end of the guide base and a movable door movably arranged on the guide base in a front-back guiding mode, and when the telescopic joint extends, the telescopic valve can cover the isolation static contact so as to separate the isolation moving contact from the isolation static contact; the fixed door is provided with a valve observation port, the breaker panel is provided with a panel observation port opposite to the fracture of the isolation moving contact and the corresponding isolation static contact, and the panel observation port is opposite to the valve observation port in the front-back direction so as to observe the fracture states of the isolation moving contact and the corresponding isolation static contact on the three-phase pole.
The beneficial effects are that: the utility model discloses an among the visual major loop of isolation fracture, be equipped with on the circuit breaker panel with keep apart the fracture front and back relative panel viewing aperture, be equipped with the valve viewing aperture on the fixed door, make circuit breaker panel and flexible valve not block the sight of observing the isolation fracture, operating personnel can observe the isolation fracture state through the panel viewing aperture, effectively improve maintenance efficiency, be favorable to ensureing operating personnel's safety, it is invisible to have solved the isolation static contact and keep apart the moving contact isolation fracture among the prior art, for the overhaul of the equipments, the security operation brings adverse effect's technical problem.
The operation mechanism further improves, and the front plate of the operation mechanism box body is provided with a box board observation port, and the box board observation port is opposite to the panel observation port in front and back.
The beneficial effects are that: by the design, the front plate of the box body of the operating mechanism can be set to be larger in size, and the components of the operating mechanism are convenient to mount.
The improved structure is characterized in that two panel observation ports are arranged, each phase of pole column is provided with an upper isolation moving contact and a lower isolation moving contact which are arranged from top to bottom, and the two panel observation ports are respectively used for observing an isolation fracture of the upper isolation moving contact and a corresponding isolation static contact and an isolation fracture of the lower isolation moving contact and the corresponding isolation static contact.
The beneficial effects are that: design like this, keep apart the fracture all visible from top to bottom, the security is higher.
In a further improvement, the fixed door comprises a fixed door cover extending forwards and backwards and a door plate arranged at the front end of the fixed door cover, and the movable door viewing port is arranged on the door plate.
The beneficial effects are that: by the design, the fixed door plate can protect the telescopic valve and prevent external sundries from entering the telescopic valve.
In order to achieve the above purpose, the utility model discloses a technical scheme is:
a switch cabinet comprises a cabinet body and a main loop which is arranged in the cabinet body and has a visible isolation fracture, wherein the cabinet body is provided with a front cabinet door, the main loop comprises a circuit breaker and an isolation static contact, the circuit breaker comprises an operating mechanism and a three-phase pole, each phase pole of the three-phase pole is arranged at intervals along the front and back direction, each phase pole is provided with an isolation moving contact matched with the isolation static contact, the circuit breaker is provided with a circuit breaker panel, the circuit breaker also comprises a telescopic valve, the telescopic valve comprises a guide base extending forwards and backwards and a telescopic joint arranged on the guide base, the telescopic valve is used for covering the isolation static contact when the isolation moving contact is separated from the isolation static contact, the telescopic joint comprises a fixed door fixed at the front end of the guide base and a movable door movably arranged on the guide base in a front and back guiding mode, when the telescopic joint is stretched, the telescopic valve can cover the isolation static contact to isolate the isolation moving contact and the isolation static contact; the front cabinet door is provided with an observation window which is opposite to the isolation fracture front and back of the isolation moving contact and the isolation static contact corresponding to the isolation moving contact, the panel of the circuit breaker is provided with a panel observation port, the fixed door is provided with a valve observation port, and the observation window is opposite to the panel observation port and the valve observation port front and back so as to observe the fracture state of the isolation moving contact and the isolation static contact corresponding to the isolation moving contact on the three-phase pole.
Has the advantages that: the utility model discloses an among the cubical switchboard, be equipped with the observation window relative with the isolation fracture on the cabinet body of cubical switchboard, be equipped with the panel viewing aperture on the circuit breaker panel, be equipped with the valve viewing aperture on the fixed door, the observation window is relative around with panel viewing aperture, the valve viewing aperture for the cabinet body, circuit breaker panel and flexible valve do not block the sight of observing the isolation fracture, and then can observe the state of isolating the fracture through the observation window outside the cabinet body, with the cubical switchboard that separates the fracture in the cubical switchboard just can be observed to the door that does not provide one kind.
The operation mechanism further improves, and the front plate of the operation mechanism box body is provided with a box board observation port, and the box board observation port is opposite to the panel observation port in front and back.
The beneficial effects are that: by the design, the front plate of the box body of the operating mechanism can be set to be larger in size, and the components of the operating mechanism are convenient to mount.
The improved structure is characterized in that two panel observation ports are arranged, each phase of pole column is provided with an upper isolation moving contact and a lower isolation moving contact which are arranged from top to bottom, and the two panel observation ports are respectively used for observing an isolation fracture of the upper isolation moving contact and a corresponding isolation static contact and an isolation fracture of the lower isolation moving contact and the corresponding isolation static contact.
The beneficial effects are that: design like this, keep apart fracture all visual from top to bottom, the security is higher.
In a further improvement, the fixed door comprises a fixed door cover extending forwards and backwards and a door plate arranged at the front end of the fixed door cover, and the valve observation port is formed in the door plate.
The beneficial effects are that: by the design, the fixed door plate can protect the telescopic valve and prevent external sundries from entering the telescopic valve.
Further improve, be provided with the light in the cabinet body.
The beneficial effects are that: the cabinet body is illuminated through the illuminating lamp, so that the brightness in the cabinet body is improved, and the internal state of the cabinet body is convenient to observe.
Further improved, when the telescopic valve covers the isolation static contact, at least one illuminating lamp is positioned at the rear side of the telescopic valve so as to illuminate the inside of the cabinet body.
The beneficial effects are that: design like this, when the isolation static contact is covered to flexible valve, the light that is in outside flexible valve can be to the internal illumination of cabinet to operating personnel observes the state of keeping apart the fracture.
Drawings
Fig. 1 is a schematic structural view of the switch cabinet of the present invention;
FIG. 2 is a schematic view of the primary circuit of FIG. 1 with the isolation port visible;
FIG. 3 is a top view of FIG. 1;
FIG. 4 is a right side view of FIG. 1;
fig. 5 is a schematic structural view of the circuit breaker of fig. 1;
FIG. 6 is a schematic view of the structure of the illumination lamp in FIG. 1;
in the figure: 11. a circuit breaker; 12. an upper isolation static contact; 13. a lower isolation static contact; 14. an illuminating lamp; 15. a valve viewing port; 16. a three-phase pole; 17. an operating mechanism; 18. a fixed door; 19. a movable door; 20. a guide base; 21. a front cabinet door; 22. an upper observation window; 23. a lower observation window; 24. a circuit breaker panel; 25. a viewing port on the panel; 26. a panel lower viewing port; 27. a lower isolation moving contact; 28. an upper isolating moving contact; 29. and a box board observation port.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clear, the present invention is further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention, i.e., the described embodiments are only some, but not all embodiments of the invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, terms such as "comprises," "comprising," or any other variation thereof, which may be present, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, elements recited by the phrases "comprising an … …," or the like, do not exclude the presence of such elements, processes, or methods.
In the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" as may be used herein are to be construed broadly, e.g., as being fixed or releasably connected or integrally connected; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from the specific situation.
In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the term "provided" may be used in a broad sense, for example, the object of "provided" may be a part of the body, or may be arranged separately from the body and connected to the body, and the connection may be a detachable connection or a non-detachable connection. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from the specific situation.
The present invention will be described in further detail with reference to examples.
The utility model discloses embodiment 1 of cubical switchboard:
in the present embodiment, as shown in fig. 1 and 2, the switch cabinet includes a cabinet body having a front cabinet door 21 and a main circuit visible through an isolated break disposed in the cabinet body. The main circuit with the visible isolation fracture is longitudinally arranged in three phases and comprises a circuit breaker 11, an isolation static contact and a telescopic valve, the isolation static contact comprises an upper isolation static contact 12 and a lower isolation static contact 13 which are arranged in the cabinet body from top to bottom, the circuit breaker comprises an operating mechanism 17 and a three-phase pole 16, and the operating mechanism 17 and the three-phase pole 16 are arranged in the front-back direction.
In this embodiment, as shown in fig. 2, each phase of the three-phase pole 16 is arranged at intervals in the front-rear direction, each phase of the pole has an upper isolation moving contact 28 and a lower isolation moving contact 27 which are arranged up and down, the upper isolation moving contact 28 of each phase of the pole is adapted to the corresponding upper isolation fixed contact 13, the lower isolation moving contact 27 of each phase of the pole is adapted to the lower isolation fixed contact 13, and the operating mechanism 17 can drive the upper isolation moving contact and the lower isolation moving contact to move, so as to realize the opening and closing of the isolation moving contact and the corresponding isolation fixed contact.
In this embodiment, as shown in fig. 1, the retractable shutter includes a guide base 20 extending forward and backward and a retractable joint disposed on the guide base 20, and the retractable shutter is used for covering the isolation static contact when the isolation moving contact is separated from the isolation static contact. The guide base 20 extends along the front-back direction, the telescopic joint comprises a fixed door 18 arranged at the front end of the guide base 20 and a movable door 19 movably arranged on the guide base 20 in a front-back guide mode, the movable door 19 is nested in the fixed door 18 when the telescopic joint retracts, and the fixed door 18 comprises a fixed door cover extending front-back and a door plate located at the front end of the fixed door cover. When the valve driving mechanism drives the telescopic joint to extend, so that the telescopic valve covers the isolation static contact, the telescopic valve is in a closed position; when the shutter driving mechanism drives the movable door 19 to be concentratedly nested in the fixed door 18, the telescopic shutter is in an open position. The door plate is provided with a valve observation port 15, so that the fixed door 18 is prevented from blocking the view of observing the isolation fracture of the isolation moving contact and the isolation static contact. In this embodiment, two telescopic valves are arranged at an upper interval and a lower interval, and the upper telescopic valve and the lower telescopic valve are respectively used for covering the upper isolation static contact 12 and the lower isolation static contact 13.
In this embodiment, as shown in fig. 1 to fig. 5, an observation window is disposed on a front cabinet door 21 of the cabinet body at a position opposite to the fracture of the isolation static contact and the isolation moving contact, the circuit breaker 11 has a circuit breaker panel 24, the circuit breaker panel 24 is provided with a panel observation port, the front panel of the cabinet body of the operating mechanism 17 is provided with a cabinet observation port 29, and the observation window is front-back opposite to the panel observation port, the cabinet observation port, and the valve observation port 15, so as to observe the isolation fracture state of the isolation static contact and the isolation moving contact through the observation window outside the cabinet body. In this embodiment, observation window, panel viewing aperture, boxboard viewing aperture all are provided with two, are observation window 22, lower observation window 23 on the panel, viewing aperture 25, viewing aperture 26 under the panel, viewing aperture and boxboard viewing aperture under the boxboard respectively for can keep apart the state of fracture and keep apart the fracture down in the external observation of cabinet.
In this embodiment, as shown in fig. 3, the cabinet is provided with two illuminating lamps 14, and the two illuminating lamps 14 are arranged in the left-right direction. When the telescopic valve covers the corresponding isolation static contact, one illuminating lamp 14 is positioned at the rear side of the lower telescopic valve to illuminate the inside of the cabinet body, so that an operator can clearly observe the state of the lower isolation fracture outside the cabinet body. Moreover, as shown in fig. 6, the lighting lamp is connected with a rotation driving device for adjusting the circumferential angle of the lighting lamp, so that an operator can adjust the angle of the lighting lamp outside the cabinet according to the actual lighting condition.
When the valve driving mechanism drives the upper telescopic valve and the lower telescopic valve to be in the open position, the circuit breaker 11 is in the closing state, the main circuit with the visible isolation fracture is connected, and the angle of the illuminating lamp 14 is adjusted according to the condition, so that the closing states of the isolation static contact and the isolation moving contact can be clearly observed through the observation window under the condition that the cabinet body is closed; when the upper valve and the lower valve are closed, the visible main loop of the isolation fracture is disconnected, the illuminating lamp 14 is opened, and the angle of the illuminating lamp 14 is adjusted according to the condition, so that the opening state of the isolation moving contact and the isolation static contact can be clearly observed through the observation window under the condition that the cabinet body is closed.
The utility model discloses an among the cubical switchboard, establish the valve viewing aperture on the boxboard viewing aperture, the flexible valve through establishing panel viewing aperture, operating mechanism on the boxboard of establishing observation window, circuit breaker panel on the cabinet body for operating personnel can observe the isolation fracture state of the internal isolation static contact of cabinet and isolation moving contact at cabinet body outward appearance, effectively improves the efficiency of overhauing, is favorable to ensureing operating personnel's safety. Simultaneously, at the internal light that sets up of cabinet to can clearly observe and keep apart the fracture state, avoid because cabinet body degree of depth restriction and light is relatively poor, observe the comparatively difficult phenomenon of keeping apart the fracture.
The utility model discloses embodiment 2 of cubical switchboard:
the present example differs from example 1 in that: in the embodiment, the size of the box body of the operating mechanism is small, the box body does not shield the observation sight, and a box plate observation port does not need to be arranged on the front plate of the box body of the operating mechanism.
The utility model discloses embodiment 3 of cubical switchboard:
this example differs from example 1 in that: in this embodiment, the panel viewing aperture is provided with one, and the size of this panel viewing aperture can guarantee that the circuit breaker panel can not block the observation sight.
The utility model discloses embodiment 4 of cubical switchboard:
this example differs from example 1 in that: in this embodiment, the fixed door includes only the fixed door cover extending forward and backward, and the fixed door has a structure with a front opening and a rear opening.
The utility model discloses a keep apart visual major loop's of fracture embodiment: the structure of the main circuit with the visible isolating break is the same as that of the main circuit with the visible isolating break in any one of the embodiments 1 to 4 of the switch cabinet, and will not be described in detail here.
Finally, it should be noted that the above mentioned embodiments are only preferred embodiments of the present invention, and not intended to limit the present invention, and although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that the technical solutions described in the foregoing embodiments may be modified without inventive effort, or some technical features may be substituted equally. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A main loop with a visible isolation fracture comprises a circuit breaker (11) and an isolation static contact, wherein the circuit breaker (11) comprises an operating mechanism (17) and a three-phase pole (16), each phase pole of the three-phase pole (16) is arranged at intervals along the front and back directions, each phase pole is provided with an isolation moving contact matched with the isolation static contact, the circuit breaker (11) is provided with a circuit breaker panel (24), the circuit breaker (11) further comprises a telescopic valve, the telescopic valve comprises a guide base (20) extending forwards and backwards and a telescopic joint arranged on the guide base (20), the telescopic valve is used for covering the isolation static contact when the isolation moving contact is separated from the isolation static contact, the telescopic joint comprises a fixed door (18) fixed at the front end of the guide base (20) and a movable door (19) movably arranged on the guide base (20) in a front and back guiding mode, and the telescopic valve can cover the isolation static contact when the telescopic joint is extended, to separate the isolation moving contact and the isolation static contact; the device is characterized in that a valve observation port (15) is arranged on the fixed door, a panel observation port which is opposite to the isolation fracture of the isolation moving contact and the corresponding isolation static contact in front and back is arranged on the circuit breaker panel (24), and the panel observation port is opposite to the valve observation port (15) in front and back so as to observe the isolation fracture states of the isolation moving contact and the corresponding isolation static contact on the three-phase pole (16).
2. The main circuit with visible isolated breaks according to claim 1, characterized in that a box board viewing port (29) is provided on the front plate of the box body of the operating mechanism (17), and the box board viewing port (29) is opposite to the panel viewing port.
3. The main circuit with visible isolation breaks according to claim 1 or 2, wherein there are two panel view ports, each phase of pole has an upper isolation moving contact (28) and a lower isolation moving contact (27) arranged up and down, and the two panel view ports are respectively used for observing the isolation breaks of the upper isolation moving contact (28) and the corresponding isolation static contact, and the isolation breaks of the lower isolation moving contact (27) and the corresponding isolation static contact.
4. The primary circuit with visible isolation breaks according to claim 1 or 2, characterized in that the fixed door (18) comprises a fixed door cover extending back and forth and a door plate at the front end of the fixed door cover, and the shutter viewing port (15) is arranged on the door plate.
5. A switch cabinet comprises a cabinet body and a main loop which is arranged in the cabinet body and has a visible isolation fracture, wherein the cabinet body is provided with a front cabinet door (21), the main loop which has a visible isolation fracture comprises a circuit breaker (11) and an isolation static contact, the circuit breaker (11) comprises an operating mechanism (17) and three-phase poles (16), each phase pole of the three-phase poles (16) is arranged at intervals along the front and back direction, each phase pole is provided with an isolation moving contact which is matched with the isolation static contact, the circuit breaker (11) is provided with a circuit breaker panel (24), the circuit breaker (11) further comprises a telescopic valve, the telescopic valve comprises a guide base (20) which extends forwards and backwards and a telescopic joint arranged on the guide base (20), the telescopic valve is used for covering the isolation static contact when the isolation moving contact is separated from the isolation static contact, and the telescopic joint comprises a fixed door (18) fixed at the front end of the guide base (20) and a movable door (19) which is movably arranged on the guide base (20) in a front and back guiding mode, when the telescopic joint is stretched, the telescopic valve can cover the isolation static contact to isolate the isolation moving contact and the isolation static contact; the three-phase isolation switch is characterized in that an observation window which is opposite to the isolation fracture front and back of the isolation moving contact and the isolation fracture corresponding to the isolation static contact is arranged on the front cabinet door (21), a panel observation port is arranged on a circuit breaker panel (24), a valve observation port (15) is arranged on the fixed door, and the observation window is opposite to the panel observation port and the valve observation port (15) front and back so as to observe the isolation fracture states of the isolation moving contact and the isolation fracture corresponding to the isolation static contact on the three-phase pole (16).
6. The switch cabinet according to claim 5, characterized in that the front panel of the box body of the operating mechanism (17) is provided with a box board viewing port (29), and the box board viewing port (29) is opposite to the panel viewing port in front and back.
7. The switch cabinet according to claim 5 or 6, wherein there are two panel view ports, each phase of the pole has an upper isolated moving contact (28) and a lower isolated moving contact (27) arranged up and down, and the two panel view ports are respectively used for observing an isolated fracture between the upper isolated moving contact (28) and the corresponding isolated static contact, and an isolated fracture between the lower isolated moving contact (27) and the corresponding isolated static contact.
8. The switchgear cabinet according to claim 5 or 6, wherein the fixed door (18) comprises a fixed door cover extending forward and backward and a door panel at the front end of the fixed door cover, and the shutter viewing port (15) is provided on the door panel.
9. Switch cabinet according to claim 5 or 6, characterized in that a lighting lamp (14) is arranged in the cabinet body.
10. The switchgear cabinet as claimed in claim 9, wherein when the retractable door covers the isolation stationary contact, at least one illuminating lamp (14) is located at the rear side of the retractable door to illuminate the interior of the cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123034009.9U CN217405353U (en) | 2021-12-02 | 2021-12-02 | Main circuit with visible isolation fracture and switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123034009.9U CN217405353U (en) | 2021-12-02 | 2021-12-02 | Main circuit with visible isolation fracture and switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217405353U true CN217405353U (en) | 2022-09-09 |
Family
ID=83132098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123034009.9U Active CN217405353U (en) | 2021-12-02 | 2021-12-02 | Main circuit with visible isolation fracture and switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217405353U (en) |
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2021
- 2021-12-02 CN CN202123034009.9U patent/CN217405353U/en active Active
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