CN213367037U - Switch cabinet - Google Patents
Switch cabinet Download PDFInfo
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- CN213367037U CN213367037U CN202022142542.6U CN202022142542U CN213367037U CN 213367037 U CN213367037 U CN 213367037U CN 202022142542 U CN202022142542 U CN 202022142542U CN 213367037 U CN213367037 U CN 213367037U
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- assembly
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- grounding
- box body
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Abstract
The application provides a switch cabinet, which comprises a box body and at least two single-phase loops, wherein each single-phase loop comprises at least one group of conductive loops, each conductive loop comprises a first wiring component, a second wiring component, a first grounding component and a switch component, the first grounding component penetrates through the box body, the first end of the first grounding component is positioned inside the box body, the second end of the first grounding component is positioned outside the box body and is used for being connected with the ground, the switch component is arranged in the box body, the switch component is connected between the first wiring component and the second wiring component in series, the switch component is configured to connect the first wiring component and the second wiring component when the switch component is closed, disconnect the first wiring component and the second wiring component when the switch component is disconnected and connect the second wiring component and the first end of the first grounding component when the switch component is closed, and solve the problem that the single-phase loop grounding resistance can be measured only after the box is opened in the existing switch cabinet, the single-phase grounding resistance of the switch cabinet can be measured more simply.
Description
Technical Field
The application belongs to the technical field of the distribution, especially, relate to a cubical switchboard.
Background
Traditional cubical switchboard draws forth the case with three phase circuit's ground wire short circuit back in the box and carries out ground connection outward, and the operator need carry out ground resistance test to single phase circuit and just need operate in the box, but opens the box and can lead to the insulating gas in the box to leak, because the inner space of box is compact, the operator has the problem of operation difficulty when measuring single phase circuit's ground resistance in addition.
SUMMERY OF THE UTILITY MODEL
The application aims to provide a single-phase circuit grounding resistance measuring device for a switch cabinet, and aims to solve the problem that the traditional single-phase circuit grounding resistance measuring device is difficult to measure.
A first aspect of an embodiment of the present application provides a switchgear, comprising a cabinet and at least two single-phase circuits, said single-phase circuits comprising at least one set of conductive circuits, said conductive circuits comprising:
the first wiring assembly penetrates through the box body;
the second wiring assembly penetrates through the box body;
the first grounding assembly penetrates through the box body, a first end of the first grounding assembly is positioned inside the box body, and a second end of the first grounding assembly is positioned outside the box body and is used for being connected with the ground; and
the switch assembly is arranged in the box body and is connected in series between the first wiring assembly and the second wiring assembly, and the switch assembly is configured to connect the first wiring assembly with the second wiring assembly when closed, disconnect the first wiring assembly with the second wiring assembly when disconnected and connect the second wiring assembly with the first end of the first grounding assembly.
In one embodiment, the switch assembly comprises a first isolating switch and a circuit breaker; the first isolating switch is connected with the circuit breaker in series, and the first isolating switch and the circuit breaker are connected between the first wiring assembly and the second wiring assembly in series;
the first disconnect switch is configured to communicate the first wiring assembly with the circuit breaker when closed, to disconnect the first wiring assembly from the circuit breaker and to communicate the first wiring assembly with the first end of the first grounding assembly when open.
In one embodiment, the first disconnecting switch is arranged above the circuit breaker.
In one embodiment, the conductive loop includes a plurality of insulators; the first grounding assembly is fixed to the side face of the circuit breaker through the insulator, and the insulator is arranged at a position where the first grounding assembly penetrates through the box body.
In one embodiment, the first end of the first grounding assembly is provided with a first grounding contact configured to contact the switch assembly when the switch assembly is opened to place the second wiring assembly in communication with the first end of the first grounding assembly.
In one embodiment, the first wiring assembly comprises a first conductor, a second conductor and a second isolating switch; the first conductor penetrates through the box body, the second isolating switch is connected between the first conductor and the second conductor in series, and the second conductor is connected with the switch assembly.
In one embodiment, the conductive loop further comprises a second grounding assembly; the second grounding assembly penetrates through the box body, a first end of the second grounding assembly is positioned inside the box body, and a second end of the second grounding assembly is positioned outside the box body and is used for being connected with the ground; the second isolation switch is configured to communicate the first conductor with the second conductor when closed, to disconnect the first conductor from the second conductor when open, and to communicate the first conductor with the first end of the second ground assembly.
In one embodiment, the switch cabinet further comprises at least one first knife switch; the first knife switch is arranged outside the box body and is connected between the second ends of the two adjacent first grounding assemblies in series.
In one embodiment, the switch cabinet further comprises at least one second knife switch; the second disconnecting link switch is arranged outside the box body and is connected between the second ends of the two adjacent second grounding assemblies in series.
Compared with the prior art, the embodiment of the utility model beneficial effect who exists is: the utility model provides a cubical switchboard is with first wiring subassembly and the disconnection of second wiring subassembly and with second wiring subassembly and first ground connection subassembly intercommunication when the switch module of single-phase return circuit breaks off, make the operator can test the ground resistance of conductive loop through the second terminal pair of first ground connection subassembly when the switch module breaks off, thereby the realization tests the ground resistance of the single-phase return circuit of cubical switchboard, the problem of just can measuring single-phase return circuit ground resistance after having solved current cubical switchboard and having had need unpacking, make the single-phase ground resistance of measuring cubical switchboard simpler.
Drawings
Fig. 1 is a first structural schematic diagram of a switch cabinet provided in an embodiment of the present application;
FIG. 2 is a schematic block diagram of a conductive loop provided in an embodiment of the present application;
fig. 3 is a second structural schematic diagram of a switch cabinet provided in the embodiment of the present application;
fig. 4 is a schematic diagram of a third structure of a switch cabinet provided in the embodiment of the present application;
fig. 5 is a fourth schematic structural diagram of a switch cabinet provided in the embodiment of the present application;
fig. 6 is a fourth structural schematic diagram of the switch cabinet provided in the embodiment of the present application.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
Referring to fig. 1 to 4, the present embodiment provides a switch cabinet, which includes a box 1 and at least two single-phase circuits 2, where the single-phase circuits 2 include at least one set of conductive circuits, and the conductive circuits include a first wiring assembly 21, a second wiring assembly 24, a first grounding assembly 23, and a switch assembly 22.
The first wiring member 21 penetrates the case 1.
The second wiring member 24 penetrates the case 1.
The first grounding assembly 23 penetrates through the box body 1, a first end of the first grounding assembly 23 is located inside the box body 1, and a second end of the first grounding assembly 23 is located outside the box body 1 and is used for being connected with the ground.
The switch assembly 22 is disposed in the box body 1, the switch assembly 22 is connected in series between the first wiring assembly 21 and the second wiring assembly 24, and the switch assembly 22 is configured to connect the first wiring assembly 21 with the second wiring assembly 24 when closed, disconnect the first wiring assembly 21 from the second wiring assembly 24 and connect the second wiring assembly 24 with the first end of the first grounding assembly 23 when disconnected.
In the embodiment, each single-phase circuit 2 corresponds to a phase circuit, if the switch cabinet is used for a three-phase circuit, the switch cabinet comprises three single-phase circuits 2, the three single-phase circuits 2 correspond to phases a, B and C respectively, one end of the first wiring component 21, which penetrates through the box body 1 and is positioned outside the box body 1, is used for inputting an external power source or outputting the power source from the inside of the box body 1 to the outside, one end of the second wiring component 24, which penetrates through the box body 1 and is positioned outside the box body 1, is used for outputting the power source from the inside of the box body 1 to the outside or inputting the external power source, one of the first wiring component 21 and the second wiring component 24 is used for outputting the power source from the inside of the box body 1 to the outside, when the switch component 22 is disconnected, the first wiring component 21 and the second wiring component 24 are disconnected and the second wiring component 24 is communicated with the first grounding component 23, and because the second end of the first grounding component, therefore, an operator can test the ground resistance of the conductive loop through the second end of the first grounding component 23 when the switch component 22 is disconnected, so that the ground resistance of the single-phase loop 2 of the switch cabinet can be tested, the problem that the ground resistance of the single-phase loop 2 can be measured only after the switch cabinet is opened in the conventional switch cabinet is solved, and the measurement of the single-phase ground resistance of the switch cabinet is simpler.
The first grounding assembly 23 may be made of copper bars, and the structure and shape of the copper bars are designed by those skilled in the art according to the actual needs of the first grounding assembly 23, and are not limited herein; the second wiring member 24 may be a conductor such as an electric wire, a cable, and a copper bar.
Referring to fig. 3 and 4, in one embodiment, the switch assembly 22 includes a first isolation switch 221 and a breaker 222, the first isolation switch 221 is connected in series with the breaker 222, and the first isolation switch 221 and the breaker 222 are connected in series between the first wiring assembly 21 and the second wiring assembly 24.
The first disconnector 221 is configured to close to communicate the first wiring assembly 21 with the circuit breaker 222, to open to disconnect the first wiring assembly 21 from the circuit breaker 222 and to communicate the first wiring assembly 21 with the first end of the first grounding assembly 23.
The first isolating switch 221 is a double-station isolating switch, and the first isolating operation device 223 of the first isolating switch 221 is fixed outside the box body 1 and penetrates through the box body 1 to be connected with the first isolating switch 221 in the box body 1, so that the first isolating switch 221 in the box body 1 is controlled outside the box body 1 through the first isolating operation device 223; the circuit breaker 222 is fixed to the outside of the case 1 by a circuit breaker operation device 224, and is connected to the circuit breaker 222 in the case 1 by passing through the case 1 so that the circuit breaker 222 in the case 1 is controlled by the circuit breaker operation device 224 outside the case 1.
In this embodiment, the circuit breaker 222 can reliably open the live conductive loop, and the first disconnector 221 can provide a clearly visible cut-off when the switch assembly 22 is opened, so that an operator can directly observe the open state of the switch assembly 22. When the switch cabinet is used as an outgoing line unit, the first isolating switch 221 is disconnected, a visible fracture is formed between the switch cabinet and the bus side, and when the switch cabinet is used as an incoming line unit, the first isolating switch 221 is disconnected, a visible fracture is formed between the switch cabinet and the load side.
Referring to fig. 3, in an embodiment, the first isolation switch 221 is disposed above the breaker 222, so that the space in the box 1 can be reasonably utilized and some special application scenarios for the position relationship between the first isolation switch 221 and the breaker 222 can be satisfied.
Referring to fig. 3 to 5, in one embodiment, the conductive loop includes a plurality of insulators 26; the first grounding assemblies 23 are fixed to the side surfaces of the breakers 222 through insulators 26, and the insulators 26 are provided at positions where the first grounding assemblies 23 penetrate the box 1.
In this embodiment, the first grounding assembly 23 is fixed on the side of the circuit breaker 222 through the insulator 26, and the insulator 26 is disposed at a position where the first grounding assembly 23 penetrates through the box body 1, so that the first grounding assembly 23 is insulated from other electronic devices in the box body 1 and the box body 1, and the occurrence of current short circuit in the switch cabinet is avoided.
Referring to fig. 3 and 5, in one embodiment, a first end of the first grounding assembly 23 is provided with a first grounding contact 231, and the first grounding contact 231 is configured to contact the switch assembly 22 when the switch assembly 22 is disconnected, so that the second wiring assembly 24 is communicated with the first end of the first grounding assembly 23.
In the present embodiment, the first end of the first grounding assembly 23 is provided with the first grounding contact 231, so that the contact between the switch assembly 22 and the first grounding assembly 23 is more stable.
Referring to fig. 1, in an embodiment, the first wiring assembly 21 includes a first conductor 211, a second conductor 212, and a second isolation switch 213, the first conductor 211 penetrates through the box body 1, the second isolation switch 213 is connected in series between the first conductor 211 and the second conductor 212, and the second conductor 212 is connected to the switch assembly 22.
In this embodiment, the second isolation switch 213 is provided to make the first wiring assembly 21 itself provide a visible fracture, so as to provide a basis for judging more power failure of the switch cabinet.
The first conductor 211 and the second conductor 212 are both conductors such as wires, cables, and copper bars.
Referring to fig. 4 and 5, in an embodiment, the conductive loop further includes a second grounding element 25; the second grounding assembly 25 penetrates through the box body 1, a first end of the second grounding assembly 25 is positioned inside the box body 1, a second end of the second grounding assembly 25 is positioned outside the box body 1 and is used for being connected with the ground, the second isolating switch 213 is configured to be closed to communicate the first conductor 211 with the second conductor 212, and when the second isolating switch is opened, to disconnect the first conductor 211 from the second conductor 212 and communicate the first conductor 211 with the first end of the second grounding assembly 25.
In this embodiment, when the conductive circuit is disconnected, the first conductor 211 is connected to the second grounding assembly 25, and the first conductor 211 is grounded, so that the safety of the switch cabinet can be improved.
Referring to fig. 6, in an embodiment, the switch cabinet further includes at least one first knife switch 27, the first knife switch 27 is disposed outside the box 1, and the first knife switch 27 is connected in series between the second ends of two adjacent first grounding assemblies 23.
In the embodiment, the first knife switch 27 is arranged, so that when the first knife switch 27 is closed, the ends of the two adjacent first grounding assemblies 23, which are positioned outside the box body 1, are connected together, so that only one grounding conductor is needed when the first grounding assemblies 23 of the plurality of single-phase loops 2 of the distribution box are connected with the ground, and the grounding consumables are saved; meanwhile, when the first knife switch 27 is switched off, the grounding resistance of each single-phase loop 2 of the switch cabinet can be measured respectively, so that the use by an operator is facilitated.
Referring to fig. 6, in an embodiment, the switch cabinet further includes at least one second knife switch 28, the second knife switch 28 is disposed outside the box body 1, and the second knife switch 28 is connected in series between the second ends of two adjacent second grounding assemblies 25, so as to save the grounding consumables of the second grounding assemblies 25.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present application and are intended to be included within the scope of the present application.
Claims (9)
1. A switchgear cabinet comprising a cabinet and at least two single-phase circuits, characterized in that said single-phase circuits comprise at least one set of conductive circuits comprising:
the first wiring assembly penetrates through the box body;
the second wiring assembly penetrates through the box body;
the first grounding assembly penetrates through the box body, a first end of the first grounding assembly is positioned inside the box body, and a second end of the first grounding assembly is positioned outside the box body and is used for being connected with the ground; and
the switch assembly is arranged in the box body and is connected in series between the first wiring assembly and the second wiring assembly, and the switch assembly is configured to connect the first wiring assembly with the second wiring assembly when closed, disconnect the first wiring assembly with the second wiring assembly when disconnected and connect the second wiring assembly with the first end of the first grounding assembly.
2. The switchgear cabinet of claim 1 wherein the switch assembly comprises a first disconnector and a circuit breaker; the first isolating switch is connected with the circuit breaker in series, and the first isolating switch and the circuit breaker are connected between the first wiring assembly and the second wiring assembly in series;
the first disconnect switch is configured to communicate the first wiring assembly with the circuit breaker when closed, to disconnect the first wiring assembly from the circuit breaker and to communicate the first wiring assembly with the first end of the first grounding assembly when open.
3. The switchgear cabinet of claim 2 wherein the first disconnector is disposed above the circuit breaker.
4. The switchgear cabinet according to claim 2, wherein the conductive loop comprises a plurality of insulators; the first grounding assembly is fixed to the side face of the circuit breaker through the insulator, and the insulator is arranged at a position where the first grounding assembly penetrates through the box body.
5. The switchgear of claim 1 wherein the first end of the first grounding assembly is provided with a first ground contact configured to contact the switch assembly when the switch assembly is open to place the second wiring assembly in communication with the first end of the first grounding assembly.
6. The switchgear of claim 1 wherein the first wiring assembly comprises a first conductor, a second conductor, and a second isolation switch; the first conductor penetrates through the box body, the second isolating switch is connected between the first conductor and the second conductor in series, and the second conductor is connected with the switch assembly.
7. The switchgear of claim 6 wherein the conductive loop further comprises a second grounding assembly; the second grounding assembly penetrates through the box body, a first end of the second grounding assembly is positioned inside the box body, and a second end of the second grounding assembly is positioned outside the box body and is used for being connected with the ground; the second isolation switch is configured to communicate the first conductor with the second conductor when closed, to disconnect the first conductor from the second conductor when open, and to communicate the first conductor with the first end of the second ground assembly.
8. The switchgear cabinet of claim 1, wherein the switchgear cabinet further comprises at least one first knife switch; the first knife switch is arranged outside the box body and is connected between the second ends of the two adjacent first grounding assemblies in series.
9. The switchgear cabinet of claim 7 wherein the switchgear cabinet further comprises at least one second knife switch; the second disconnecting link switch is arranged outside the box body and is connected between the second ends of the two adjacent second grounding assemblies in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022142542.6U CN213367037U (en) | 2020-09-25 | 2020-09-25 | Switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022142542.6U CN213367037U (en) | 2020-09-25 | 2020-09-25 | Switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213367037U true CN213367037U (en) | 2021-06-04 |
Family
ID=76155773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022142542.6U Active CN213367037U (en) | 2020-09-25 | 2020-09-25 | Switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213367037U (en) |
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2020
- 2020-09-25 CN CN202022142542.6U patent/CN213367037U/en active Active
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