CN214479032U - 10kV takes looped netowrk cabinet in emergent operation return circuit of branch - Google Patents
10kV takes looped netowrk cabinet in emergent operation return circuit of branch Download PDFInfo
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- CN214479032U CN214479032U CN202120640169.9U CN202120640169U CN214479032U CN 214479032 U CN214479032 U CN 214479032U CN 202120640169 U CN202120640169 U CN 202120640169U CN 214479032 U CN214479032 U CN 214479032U
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- branch
- line
- station load
- grounding switch
- main line
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/24—Circuit arrangements for boards or switchyards
Abstract
The utility model discloses a 10kV takes looped netowrk cabinet in emergent operation return circuit of branch relates to looped netowrk cabinet equipment field. At present, when a fault or maintenance occurs, the power failure time is long, the wiring is complicated, and the construction is complex. The utility model discloses a: the system comprises a top outgoing line casing, a main line casing, a branch line casing, a main line three-station load/ground switch, a branch line three-station load/ground switch, a main line operating mechanism and a branch line operating mechanism; the main line three-station load/grounding switch and the branch line three-station load/grounding switch are arranged in the cabinet body; the top outgoing line sleeve and the bus are connected with a main line three-station load/grounding switch or a branch line three-station load/grounding switch; the main line three-station load/ground switch, the main line and the main line casing pipe are connected in sequence; the branch three-station load/grounding switch, the branch and the branch sleeve are connected in sequence. In the technical scheme, the middle ring network cabinet forms a fixed power supply 'hot spot' which is used as a power supply access point or a load output point; the power failure time is reduced, the wiring is convenient, and the construction is simple.
Description
Technical Field
The utility model relates to a looped netowrk cabinet equipment field especially relates to a 10kV takes looped netowrk cabinet in emergent operation return circuit of branch.
Background
With the adoption of a large number of cables for entering the ground of the urban power distribution network, the problems that the appearance of urban overhead lines is influenced, the tree line contradiction and the floor line contradiction are solved. However, a new problem is also raised, namely, the distance between a cable line and the ground is close, so that the design of a fully insulated line is almost adopted, once a fault or maintenance occurs, the live-line operation mode cannot be adopted for operation, only power failure can be used for operation, and the power failure time is long.
At present, operation equipment such as a generator car, a box transformer car, a bypass cable and the like is adopted to carry out surface or point first-time power restoration operation. There is no problem from the technical theory level, but in actual work, these working devices rarely find a fast access point in the cable network without power cut. Although the standby intervals of equipment such as a ring main unit, a switch cabinet and a branch box can be used as power taking points, the standby intervals are occupied and the expansion difficulty of the standby intervals of the equipment is high along with the rapid access of an expansion network, and the standby intervals are difficult to find in an operation place by an operation line. If non-standby interval access is selected, the cable line equipment basically has five-prevention interlocking, power failure is needed in operation, a T-shaped head backward connection or switching mode is needed, power failure is needed again after operation is finished, and the cable line equipment is recovered after power failure removal, complex in wiring, complex in construction and long in consumed time.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model and the technical task who provides are perfect and improve prior art scheme, provide a 10kV takes the looped netowrk cabinet in emergent operation return circuit of branch to reach the purpose of quick access power. Therefore, the utility model adopts the following technical scheme.
The utility model provides a 10kV takes emergent operation return circuit's looped netowrk cabinet of branch, includes:
the power supply system comprises a cabinet body, a display panel arranged on one side of the cabinet body, a top outgoing line sleeve which is positioned at the top of the cabinet body and used as an electric energy input interface of the ring main unit, a main line sleeve which is used as an electric energy output of the ring main unit, a branch line sleeve which is used for realizing bypass maintenance operation and temporary electricity taking functions, a main line three-station load/grounding switch which is arranged on a main line and used for disconnecting a main line and a branch line, a branch line three-station load/grounding switch which is arranged on a branch line and used for disconnecting a branch line, a main line operating mechanism which is connected with the main line three-station load/grounding switch and used for controlling the main line three-station load/grounding switch to act, and a branch line operating mechanism which is connected with the branch line three-station load/grounding switch and used for controlling the branch line three-station load/grounding switch to act; the main line three-station load/grounding switch and the branch line three-station load/grounding switch are arranged in the cabinet body; the top outgoing line sleeve and the bus are connected with a main line three-station load/grounding switch or a branch line three-station load/grounding switch; the main line three-station load/ground switch, the main line and the main line casing pipe are connected in sequence; the branch three-station load/grounding switch, the branch and the branch sleeve are connected in sequence.
In the technical scheme, a branch three-station load/ground switch, a branch operating mechanism, a branch sleeve and a branch are additionally arranged on the conventional ring main unit to form an emergency operation loop; the basic functions of the original ring main unit are reserved, emergency operation is realized, and the ring main unit in the technical scheme is used as a fixed power supply 'hot spot' and is used as a power supply access point or a load output point; when a fault occurs or the maintenance is carried out, the power failure time is reduced, the wiring is convenient, and the construction is simple.
As a preferable technical means: one end of the top outgoing line sleeve is a superior power grid connecting end used for being connected with a superior power grid, and the other end of the top outgoing line sleeve is a bus connecting end connected with a bus in the cabinet body.
As a preferable technical means: one end of the main line casing pipe is a lower-level load connecting end used for being connected with a lower-level load, and the other end of the main line casing pipe is a bus connecting end connected with a bus in the cabinet.
As a preferable technical means: one end of the branch line sleeve is a temporary load connecting end used for being connected with a temporary power supply or a load, and the other end of the branch line sleeve is a bus connecting end connected with a bus in the ring main unit.
As a preferable technical means: the branch line sleeve is a quick-insertion type sleeve and is provided with a self-locking structure so as to realize quick insertion and extraction of the cable head.
As a preferable technical means: the main line three-station load/grounding switch is positioned above the branch line three-station load/grounding switch, and a branch line operating mechanism is arranged at the position opposite to the branch line three-station load/grounding switch; the main line operating mechanism is arranged below the branch line operating mechanism; a branch bushing box which is partially protruded outwards and used for accommodating a branch bushing is arranged on the front side of the cabinet body; the branch casing box and the main line operating mechanism are arranged side by side. The convex branch line accommodating bushing box is adopted to facilitate the connection of the branch line bushing and external equipment, the misoperation caused by the interference of the branch line bushing box and a switch positioned on a front side plate can be avoided, and the safety of operation is improved by the single branch line bushing box; the branch casing pipes in the branch casing pipe box are isolated from the main line operating mechanism, the insulation effect is improved, the structure is compact, the transformation of an original ring main unit is realized, the size of the ring main unit in the left and right directions does not need to be increased, the increased volume is only the branch casing pipe box with the convex part at the front side, the occupied area requirement of the ring main unit is not influenced, the arrangement position of the ring main unit does not need to be rearranged and moved, and the transformation cost of the ring main unit is reduced.
Has the advantages that: in the technical scheme, a fixed quick interconnection device is arranged at a medium-voltage important user point, and a fixed power supply 'hot point' formed on a 10kV distribution network line is used as a power supply access point or a load output point after application; and completely uninterrupted power supply operation is realized for users and circuits near the ring main unit.
This technical scheme has interim power access function and interim circuit and gets the electric function, can branch node power control, carries out the switching of power not having a power failure, and the branch line interface adopts quick plug mode moreover, can increase substantially the operating efficiency that does not have a power failure, reduces user's power off time. The technical scheme has strong universality, can completely replace the prior ring main unit without changing the structure, and has interoperability.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic circuit diagram of the present invention.
In the figure: 1. a display panel; 2. a top outgoing line sleeve; 3. a main line casing pipe; 4. branch casing; 5. a main line three-station load/ground switch; 6. a branch three-station load/ground switch; 7. a branch operating mechanism; 8. a cabinet body; 9. and (4) branch lines.
Detailed Description
The technical solution of the present invention will be further described in detail with reference to the accompanying drawings.
As shown in fig. 1, the utility model comprises: the power supply device comprises a cabinet body 8, a display panel 1 arranged on one side of the cabinet body 8, a top outgoing line sleeve 2 which is positioned at the top of the cabinet body 8 and used as an electric energy input interface of the ring main unit, a main line sleeve 3 which is used as electric energy output of the ring main unit, a branch line sleeve 4 which is used for realizing bypass overhaul operation and temporary electricity taking function, a main line three-station load/grounding switch 5 which is arranged on a main line and used for cutting off a main line and a branch line, a branch line three-station load/grounding switch 6 which is arranged on a branch line and used for cutting off a branch line, a main line operating mechanism which is connected with the main line three-station load/grounding switch 5 and used for controlling the main line three-station load/grounding switch 5 to act, and a branch line operating mechanism 7 which is connected with the branch line three-station load/grounding switch 6 and used for controlling the branch line three-station load/grounding switch 6 to act; the main line three-station load/grounding switch 5 and the branch line three-station load/grounding switch 6 are arranged in the cabinet body 8; the top outgoing line sleeve 2 and the bus are connected with a main line three-station load/ground switch 5 or a branch line three-station load/ground switch 6; the main line three-station load/grounding switch 5, the main line and the main line casing pipe 3 are connected in sequence; the branch three-station load/grounding switch 6, the branch 9 and the branch sleeve 4 are connected in sequence.
In order to conveniently reform the original ring network cabinet, a branch three-station load/grounding switch, a branch operating mechanism, a branch sleeve and a branch 9 are additionally arranged while the safety is ensured, and the structure is as follows: a branch line three-station load/grounding switch 6 is arranged above the main line three-station load/grounding switch 5, and a branch line operating mechanism 7 is arranged at the position opposite to the branch line three-station load/grounding switch 6; a main line operating mechanism is arranged below the branch line operating mechanism 7; a branch casing box which is protruded outwards and used for accommodating the branch casing 4 is arranged on the front side of the cabinet body; the branch casing box and the main line operating mechanism are arranged side by side. The convex branch line accommodating bushing box is adopted to facilitate the connection of the branch line bushing and external equipment, the misoperation caused by the interference of the branch line bushing box and a switch positioned on a front side plate can be avoided, and the safety of operation is improved by the single branch line bushing box; the branch casing pipes in the branch casing pipe box are isolated from the main line operating mechanism, the insulation effect is improved, the structure is compact, the transformation of an original ring main unit is realized, the size of the ring main unit in the left and right directions does not need to be increased, the increased volume is only the branch casing pipe box with the convex part at the front side, the occupied area requirement of the ring main unit is not influenced, the arrangement position of the ring main unit does not need to be rearranged and moved, and the transformation cost of the ring main unit is reduced.
One end of the top outgoing line sleeve 2 is a superior power grid connecting end used for being connected with a superior power grid, and the other end of the top outgoing line sleeve is a bus connecting end connected with a bus in the cabinet body 8; one end of the main line casing pipe 3 is a lower-level load connecting end used for being connected with a lower-level load, and the other end of the main line casing pipe is a bus connecting end connected with a bus in the cabinet; one end of the branch bushing 4 is a temporary load connection end used for being connected with a temporary power supply or a load, and the other end of the branch bushing is a bus connection end connected with a bus in the ring main unit.
In order to realize quick plugging, the branch line sleeve 4 is a quick-plugging sleeve and is provided with a self-locking structure so as to realize quick plugging of the cable head.
The utility model discloses a use method as follows:
and temporarily getting power for the ring main unit. The distribution network cable line belongs to an insulated closed line, and can only be accessed by using a standby interval or power failure if temporary power taking operation is carried out. Now can set up a band branch node type switch interval in the looped netowrk cabinet interval, then can carry out the temporary electricity-taking operation from the looped netowrk cabinet of not having a power failure. Temporary electricity taking operation flow: observing the switch state display and determining that the branch switch is in the separated state; opening a branch box door; testing the electricity again; after determining that the interface is not electrified, quickly accessing a temporary line, wherein a cable of the temporary line is provided with a quick plug; the branch switch is operated to supply power to the temporary line.
And (5) switching in the temporary power supply of the ring main unit. When a 10kV incoming cable of a power distribution room or a superior feeder cabinet fails or is overhauled for short-time power failure operation, equipment such as a medium-voltage generator car can be connected into a looped network cabinet branch line to realize rapid networking and power restoration. The temporary power supply access operation flow comprises the following steps: observing the switch state display and determining that the branch switch is in the separated state; opening a branch box door; testing the electricity again; after determining that the interface is not electrified, performing temporary and rapid access on the medium-voltage generator car; and operating a branch switch and an output switch of the medium-voltage power generation car to supply power to the ring main unit.
The ring main unit of the emergency operation loop with 10kV shown in fig. 1 and 2 is a specific embodiment of the present invention, which has embodied the substantial features and advantages of the present invention, and can modify the same in the aspects of shape, structure, etc. according to the actual use requirement, all within the protection scope of the present solution.
Claims (6)
1. The utility model provides a 10kV takes emergent operation return circuit's looped netowrk cabinet of branch which characterized in that includes:
a cabinet body (8), a display panel (1) arranged at the front side of the cabinet body (8), a top outgoing line sleeve (2) which is positioned at the top of the cabinet body (8) and is used as an electric energy input interface of the ring main unit, a main line sleeve (3) which is used as electric energy output of the ring main unit, and a branch line sleeve (4) which is used for realizing bypass maintenance operation and temporary electricity taking function, the three-station load/grounding switch comprises a main line three-station load/grounding switch (5) which is arranged on a main line and used for cutting off a main line branch line, a branch line three-station load/grounding switch (6) which is arranged on a branch line and used for cutting off a branch line, a main line operating mechanism which is connected with the main line three-station load/grounding switch (5) and used for controlling the main line three-station load/grounding switch (5) to act, and a branch line operating mechanism (7) which is connected with the branch line three-station load/grounding switch (6) and used for controlling the branch line three-station load/grounding switch (6) to act; the main line three-station load/grounding switch (5) and the branch line three-station load/grounding switch (6) are arranged in the cabinet body (8); the top outgoing line sleeve (2) and the bus are connected with a main line three-station load/grounding switch (5) or a branch line three-station load/grounding switch (6); the main line three-station load/ground switch (5), the main line and the main line casing pipe (3) are connected in sequence; the branch three-station load/grounding switch (6), the branch (9) and the branch sleeve (4) are connected in sequence.
2. The ring main unit of 10kV area branch emergency operation return circuit of claim 1, characterized in that: one end of the top outgoing line sleeve (2) is a superior power grid connecting end used for being connected with a superior power grid, and the other end of the top outgoing line sleeve is a bus connecting end connected with a bus in the cabinet body (8).
3. The ring main unit of claim 2, wherein the ring main unit comprises a 10kV ring main unit with a branch emergency operation loop, and the ring main unit comprises: one end of the main line casing pipe (3) is a lower-level load connecting end used for being connected with a lower-level load, and the other end of the main line casing pipe is a bus connecting end connected with a bus in the cabinet.
4. The ring main unit of 10kV area branch emergency operation return circuit of claim 3, characterized in that: one end of the branch line sleeve (4) is a temporary load connecting end used for being connected with a temporary power supply or a load, and the other end of the branch line sleeve is a bus connecting end connected with a bus in the ring main unit.
5. The ring main unit of 10kV area branch emergency operation return circuit of claim 4, characterized in that: the branch line sleeve (4) is a quick-insertion sleeve and is provided with a self-locking structure so as to realize quick insertion and extraction of a cable head.
6. The ring main unit of 10kV area branch emergency operation return circuit of claim 1, characterized in that: the main line three-station load/grounding switch (5) is positioned above the branch line three-station load/grounding switch (6), and a branch line operating mechanism (7) is arranged at the position opposite to the branch line three-station load/grounding switch (6); the main line operating mechanism is arranged below the branch line operating mechanism (7); a branch bushing box which is partially protruded outwards and used for accommodating a branch bushing (4) is arranged on the front side of the cabinet body; the branch casing box and the main line operating mechanism are arranged side by side.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120640169.9U CN214479032U (en) | 2021-03-30 | 2021-03-30 | 10kV takes looped netowrk cabinet in emergent operation return circuit of branch |
| DE202022100467.6U DE202022100467U1 (en) | 2021-03-30 | 2022-01-27 | 10kV ring mains cabinet with branch emergency operation loop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120640169.9U CN214479032U (en) | 2021-03-30 | 2021-03-30 | 10kV takes looped netowrk cabinet in emergent operation return circuit of branch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214479032U true CN214479032U (en) | 2021-10-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120640169.9U Active CN214479032U (en) | 2021-03-30 | 2021-03-30 | 10kV takes looped netowrk cabinet in emergent operation return circuit of branch |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN214479032U (en) |
| DE (1) | DE202022100467U1 (en) |
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2021
- 2021-03-30 CN CN202120640169.9U patent/CN214479032U/en active Active
-
2022
- 2022-01-27 DE DE202022100467.6U patent/DE202022100467U1/en active Active
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| Publication number | Publication date |
|---|---|
| DE202022100467U1 (en) | 2022-03-02 |
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