阅读说明：本技术 一种10kv高压开关柜母线不停电作业装置及方法 (10KV high-voltage switch cabinet bus uninterrupted operation device and method ) 是由 张泽中 苏长宝 王志方 闫奇 刘斌 杨干 马凯强 张华敏 张�成 李东松 于 2021-08-30 设计创作，主要内容包括：本发明提供了一种10KV高压开关柜母线不停电作业装置及方法,属电气技术领域。一种10KV高压开关柜母线不停电作业装置,包括底盘车(1)和绝缘板(2),所述绝缘板(2)垂直设置在底盘车(1)端部,所述绝缘板(2)和所述底盘车(1)通过螺栓(3)固定连接,所述绝缘板(2)下部设置有矩形操作门(8)。本发明解决了10KV高压解决开关柜可靠运行及带电检查、带电维修的问题。(The invention provides a device and a method for operating a 10KV high-voltage switch cabinet bus without power outage, and belongs to the technical field of electricity. The utility model provides a 10KV high tension switchgear generating line does not have power failure operation device, includes chassis car (1) and insulation board (2), insulation board (2) set up perpendicularly in chassis car (1) tip, insulation board (2) with chassis car (1) pass through bolt (3) fixed connection, insulation board (2) lower part is provided with rectangle operation door (8). The invention solves the problems of reliable operation, live inspection and live maintenance of the switch cabinet under the high voltage of 10 KV.)

1. The utility model provides a 10KV high tension switchgear generating line does not have outage operation device, includes chassis car (1) and insulation board (2), its characterized in that, insulation board (2) set up perpendicularly in chassis car (1) tip, insulation board (2) with chassis car (1) passes through bolt (3) fixed connection, insulation board (2) lower part is provided with rectangle operation door (8).

2. The uninterrupted operation device for the 10KV high-voltage switch cabinet bus as claimed in claim 1, wherein the chassis (1) is a ZN63 type breaker chassis.

3. The uninterrupted operation device for the 10KV high-voltage switch cabinet bus according to claim 2, wherein the insulating plate (2) is a 3240 epoxy high-temperature resistant glass fiber electrical insulating plate with the thickness of 8 mm.

4. The uninterrupted operation device for the 10KV high-voltage switch cabinet bus according to claim 2, wherein the chassis (1) is provided with a tool groove (4).

5. The uninterrupted operation device for the 10KV high-voltage switch cabinet bus according to claim 2, wherein the chassis truck (1) is provided with a sponge (5).

6. The uninterrupted operation device for the 10KV high-voltage switch cabinet bus according to claim 3, wherein a flashlight fixing support (7) is arranged on the upper portion of the insulating plate (2).

7. The uninterrupted operation device for the 10KV high-voltage switch cabinet bus according to claim 6, wherein the flashlight fixing support (7) is provided with an LED flashlight (6).

8. A method for operating a 10KV high-voltage switch cabinet bus without power outage, which is characterized in that the method for operating the switch cabinet uses the switch cabinet operating device as claimed in any one of claims 1 to 7, and comprises the following steps: through the special chassis truck (1) and the qualified insulating plate (2), reasonable installation and fixing procedures are combined, so that the chassis truck (1) is mechanically interlocked with a small car chamber of a switch cabinet, the valve baffle of the upper and lower static contacts can be stably opened, the upper half part of the electrical insulating plate (2) on the electrified car reliably shields the upper static contact, the lower half part of the electrical insulating plate is provided with a rectangular operation door (8) according to actual work needs, and the purpose of overhauling the lower static contact without stopping a bus is achieved through the operation door (8).

Technical Field

The invention relates to the technical field of electricity, in particular to a device and a method for operating a 10KV high-voltage switch cabinet bus without power outage.

Background

10kV switchgear cabinets are abundantly present in substations of different voltage classes. The fault of the lower static contact of the switch cabinet occurs, although the defect rate is not high, the cardinal number is large, the total defect occurs frequently, the lower static contact of the switch cabinet is maintained, and due to the fact that the live distance is too close, a power failure measure must be taken for a bus, the phenomenon that the fault occurs at an interval and the load of a whole bus in a power failure half station must be transferred often occurs, and the power supply reliability is seriously influenced.

Chinese patent document CN207010040U discloses a high-voltage switch cabinet operation device, which includes a frame body, a jacking device and a supporting platform, wherein the jacking device is fixed on the frame body, the high-voltage switch cabinet operation device further includes a supporting plate fixed on the jacking device, and a sliding rail arranged between the supporting plate and the supporting platform, the supporting platform is connected with the supporting plate through the sliding rail, and the sliding rail is a linear rail. This operation equipment can be convenient with current transformer location on the mounted position. But it does not solve the problem of power outage during operation.

Chinese patent document CN204835287U discloses a switch cabinet maintenance frame, belonging to the field of switch cabinets. It has solved the inconvenient problem of current cubical switchboard multi-angle maintenance. The switch cabinet maintenance frame comprises a top plate and a bottom plate which are parallel to each other, wherein the top plate and the bottom plate are connected through a rod-shaped support, a frame structure is formed, the switch cabinet also comprises a rotary table, disc-shaped rails matched with each other are arranged on the bottom surface of the bottom plate and the top surface of the rotary table, the switch cabinet is arranged among the top plate, the bottom plate and the support, and the bottom plate and the switch cabinet can rotate together through the matching of the bottom plate and the rotary table. Arrange the cubical switchboard in on the bottom plate to wholly arrange in between roof, bottom plate and the support, when needs maintenance, make bottom plate and cubical switchboard together rotatory through bottom plate and carousel cooperation, and adjust the orientation of cubical switchboard as required, because connect through shaft-like leg between roof and the bottom plate moreover, it is very convenient to maintain each position of cubical switchboard. But it does not solve the problem of live working.

Disclosure of Invention

The invention aims to provide a device and a method for operating a 10KV high-voltage switch cabinet bus without power outage, and solve the problems of reliable operation, live inspection and live maintenance of the switch cabinet.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a 10KV high tension switchgear generating line does not have outage operation device, includes chassis car 1 and insulation board 2, insulation board 2 sets up perpendicularly in chassis car 1 tip, insulation board 2 with chassis car 1 passes through bolt 3 fixed connection, insulation board 2 lower part is provided with rectangle operation door 8.

Preferably, the chassis 1 is a ZN63 type circuit breaker chassis.

Preferably, the insulating plate 2 is a 3240 epoxy high-temperature resistant glass fiber electrical insulating plate with the thickness of 8 mm.

Preferably, the chassis truck 1 is provided with a tool slot 4.

Preferably, the chassis truck 1 is provided with a sponge 5.

Preferably, a flashlight fixing support 7 is arranged on the upper portion of the insulating plate 2.

Preferably, the flashlight fixing support 7 is provided with an LED flashlight 6.

The invention also provides a 10KV high-voltage switch cabinet bus uninterrupted operation method, which comprises the following steps: through the special chassis vehicle 1 and the qualified insulating plate 2, reasonable installation and fixing procedures are combined, so that the chassis vehicle 1 is mechanically interlocked with a small vehicle chamber of a switch cabinet, the valve baffle of the upper and lower static contacts can be stably opened, meanwhile, the upper half part of the electric insulating plate 2 on the electrified small vehicle reliably shields the upper static contact, the lower half part is provided with a rectangular operation door 8 according to actual working requirements, and the purpose of overhauling the lower static contact without stopping buses is achieved through the operation door 8.

Furthermore, no non-power-off operation is precedent in the industry, the power-off maintenance of the high-voltage switch cabinet causes great inconvenience to the terminal user of the line, and especially, the power-off operation cannot be performed on some key production lines. The high-voltage switch cabinet has more strict time limit in power failure maintenance operation, the time is tight, the maintenance workload is large, and therefore omission is easily generated in the high-voltage switch cabinet maintenance operation, and comprehensive and careful detection can not be carried out on the high-voltage switch cabinet. Chinese patent document CN204835287U, published in 2015, 12 and 02, discloses a maintenance rack for a switch cabinet. The problem that the multi-angle maintenance of the existing switch cabinet is inconvenient is solved.

Even if uninterrupted power operation is adopted, the fault position and the fault reason of the high-voltage switch cabinet are subjected to defect analysis aiming at hidden dangers and defects of different switch cabinets, and the lower static contact of the uninterrupted power maintenance switch cabinet is rarely available. The cubical switchboard structure is complicated, and the volume is narrow and small, and electric is concentrated relatively, is difficult for wearing the shielding clothes and carries out live working, enters into maintenance cubical switchboard static contact down more specifically, and generally speaking, the voltage class of electrified circuit is higher, and the insulation level requirement to insulating tool is also higher. With the construction and development of smart power grids, the requirements of power supply reliability of power systems are higher and higher, and power enterprises need to effectively detect and process power grid equipment faults when wanting to improve power supply reliability and reduce the tripping rate of equipment and lines. The Howept discloses a switch cabinet state detection technology research and application based on uninterrupted power supply detection.

The 10kV switch cabinets exist in 203 transformer substations with different voltage grades in operation and maintenance of a city company in large quantity, and the total number of the switch cabinets is more than 4000. The fault of the lower static contact of the switch cabinet occurs, although the defect rate is not high, the cardinal number is large, the total defect occurs frequently, the lower static contact of the switch cabinet is maintained, and due to the fact that the live distance is too close, a power failure measure must be taken for a bus, the phenomenon that the fault occurs at an interval and the load of a whole bus in a power failure half station must be transferred often occurs, and the power supply reliability is seriously influenced. During the operation of a 10kV switch cabinet, the total amount of lower static contact faults and CT faults is large, because the wiring mode of the switch cabinet is limited, the lower static contact and the CT maintenance of the switch have to stop buses according to the traditional maintenance mode, the intervals of the same section of buses are large, the power failure maintenance in the peak period of power utilization causes great inconvenience to the production and the life of residents, and the defect that the threat to the safe operation of a power grid is not eliminated is also serious.

However, the multifunctional operating platform can complete the maintenance and replacement of the lower contact box or the CT of the switch cabinet under the condition that the bus is not powered off, and is a method capable of realizing two functions.

Compared with the prior art, the invention has the beneficial effects that:

the chassis comprises a chassis and an insulating plate, wherein the insulating plate is vertically arranged at the end part of the chassis, the insulating plate and the chassis are fixedly connected through bolts, and a rectangular operation door is arranged at the lower part of the insulating plate. The chassis vehicle is a ZN63 type breaker chassis vehicle. The chassis vehicle can be a ZN63 type breaker chassis vehicle, and the purposes of project implementability and popularization applicability are achieved. The insulating plate 2 is a 3240 epoxy high-temperature-resistant glass fiber electrical insulating plate with the thickness of 8 mm. Has high mechanical and dielectric properties, good heat resistance and moisture resistance and good machinability. The molecular structure of the epoxy resin is characterized in that a molecular chain contains active epoxy groups, and the epoxy groups can be positioned at the tail ends, in the middle or in a ring structure. The cured epoxy resin system is an excellent insulating material with high dielectric property, surface leakage resistance and electric arc resistance. The special chassis vehicle and the qualified insulating plate are combined with reasonable installation and fixing procedures, so that the chassis vehicle is mechanically interlocked with a small car room of a switch cabinet, the valve baffle plates of the upper and lower static contacts can be stably opened, meanwhile, the upper half part of the electric insulating plate on the electrified car reliably shields the upper static contact, and the lower half part of the electric insulating plate on the electrified car is provided with a rectangular operation door according to actual working requirements, thereby achieving the purpose of maintaining the lower static contact without stopping the bus

The chassis vehicle is provided with a tool groove. The spare part is conveniently stored when overhauing, and the maintenance personal of being convenient for is access at any time.

The chassis vehicle is provided with a sponge. Make things convenient for maintainer to lie prone and slow down pressure on the top, avoid long-time maintenance to cause the scotch to maintainer.

And a flashlight fixing support is arranged on the upper part of the insulating plate. And the flashlight fixing support is provided with an LED flashlight. The maintenance staff can conveniently maintain the lamp in a weak light at night, the visual field of the maintenance staff is limited, and the visual field can be enlarged by means of the flashlight.

The high-voltage switch cabinet power failure maintenance operation is checked on the static characteristic of the high-voltage switch cabinet, and errors are easily generated in the maintenance process of the high-voltage switch cabinet. The high-voltage switch cabinet live-line detection technology is carried out in the normal operation process of the high-voltage switch cabinet, the problem of partial discharge inside the high-voltage switch cabinet can be timely found and mastered, the real-time operation state of the high-voltage switch cabinet can be accurately mastered by means of the high-voltage switch cabinet live-line detection technology, and detailed understanding and mastering can be carried out on the condition causing different data changes through analysis and research by combining data measured by the live-line detection technology. The high-voltage switch cabinet live-line maintenance and power failure maintenance technology can carry out defect analysis on the fault position and the fault reason of the high-voltage switch cabinet, but compared with the power failure maintenance technology, the high-voltage switch cabinet live-line maintenance technology can master the potential discharge risk in the high-voltage switch cabinet.

Drawings

Fig. 1 is a schematic diagram of embodiment 1 of the present invention.

Fig. 2 is a schematic structural diagram of embodiment 1 of the present invention.

Fig. 3 is a schematic structural diagram of embodiment 2 of the present invention.

Fig. 4 is a schematic structural diagram of embodiment 3 of the present invention.

Fig. 5 is a schematic structural diagram of embodiment 4 of the present invention.

In the figure, 1-chassis, 2-insulating plate, 3-bolt, 4-tool groove, 5-sponge, 6-LED flashlight, 7-flashlight fixing support and 8-operation door.

Detailed Description

For a better understanding of the invention, the following description is given in conjunction with the examples and the accompanying drawings, but the invention is not limited to the examples. In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details.

Example 1

Referring to fig. 1 and 2, the uninterrupted operation device and method for the 10KV high-voltage switch cabinet bus comprises a chassis truck 1 and an insulating plate 2, wherein the insulating plate 2 is vertically arranged at the end of the chassis truck 1, the insulating plate 2 is fixedly connected with the chassis truck 1 through a bolt 3, and a rectangular operation door 8 is arranged at the lower part of the insulating plate 2. The chassis car 1 can select a ZN63 type breaker chassis car to match the specification of a switch cabinet trolley, meet the maintenance requirement in a transformer substation, and achieve the purposes of project implementability and popularization and application. The fixing screw 3 is a commonly used 8.8-grade M10 galvanized screw, and the strength requirement is met. The insulating plate 2 is a 3240 epoxy high-temperature-resistant glass fiber electrical insulating plate with the thickness of 8 mm. Has high mechanical and dielectric properties, good heat resistance and moisture resistance and good machinability. The molecular structure of the epoxy resin is characterized in that a molecular chain contains active epoxy groups, and the epoxy groups can be positioned at the tail ends, in the middle or in a ring structure. The cured epoxy resin system is an excellent insulating material with high dielectric property, surface leakage resistance and electric arc resistance.

The invention also provides a 10KV high-voltage switch cabinet bus uninterrupted operation method, which comprises the following steps: through the special chassis vehicle 1 and the qualified insulating plate 2, reasonable installation and fixing procedures are combined, so that the chassis vehicle 1 is mechanically interlocked with a small vehicle chamber of a switch cabinet, the valve baffle of the upper and lower static contacts can be stably opened, meanwhile, the upper half part of the electric insulating plate 2 on the electrified small vehicle reliably shields the upper static contact, the lower half part is provided with a rectangular operation door 8 according to actual working requirements, and the purpose of overhauling the lower static contact without stopping buses is achieved through the operation door 8.

The special chassis vehicle and the qualified insulating plate are combined with reasonable installation and fixing procedures, so that the chassis vehicle is mechanically interlocked with a small vehicle chamber of a switch cabinet, the valve baffle plates of the upper and lower static contacts can be stably opened, meanwhile, the upper half part of the electric insulating plate on the electrified small vehicle reliably shields the upper static contact, and the lower half part of the electric insulating plate on the electrified small vehicle is provided with a rectangular operation door according to actual working requirements, so that the aim of maintaining the lower static contact without stopping a bus is fulfilled. The invention can realize that the defect processing can be completed without bus power failure when the lower static contact of a single interval switch cabinet has a fault and a CT fault. The method can directly reduce the defect grade, reduce the defect influence, reduce the power failure range, reduce the power failure operation time when the fault occurs, strive for more critical rush-repair time points, reduce the influence of the load which must be transferred on other lines, and enhance the power supply reliability.

The selected materials are assembled after cutting and punching, and construction is carried out according to the working procedures, so that the quality is ensured. The insulating board is guaranteed to be free of deformation, burrs and cracks, the size of the insulating board is properly matched with the size of a small car room of the switch cabinet, and the position of the lower rectangular operation hole is matched with the position and the size of a lower static contact of the switch cabinet. In the bolt assembling process, control moment when guaranteeing fastening degree, avoids insulating panel to receive the heavy load to damage, influences fastness, insulating nature, brings the hidden danger for not having a power failure to overhaul.

The invention solves the problem that the whole bus needs to be powered off when the fault of the lower static contact of a single switch cabinet is overhauled, reduces the power-off range, realizes safe and efficient first-aid repair, reduces the power-off operation time when the fault occurs, strives for more critical first-aid repair time points, reduces the influence of the load which needs to be transferred on other lines, and enhances the power supply reliability. Meanwhile, the number of times of opening and closing of equipment in normal operation is reduced, the service life of the equipment can be guaranteed, the impact on the equipment caused by power failure in operation is reduced, and the safety of a power grid is guaranteed.

Example 2

Referring to fig. 3, the device and the method for operating a 10KV high-voltage switch cabinet bus without power outage described in this embodiment are different from embodiment 1 in that a tool slot 5 is disposed on the chassis 1. The spare part is conveniently stored when overhauing, and the maintenance personal of being convenient for is access at any time.

Example 3

Referring to fig. 4, the non-stop operation apparatus and method for 10KV high-voltage switch cabinet bus described in this embodiment is different from embodiment 2 in that: the chassis vehicle 1 is provided with a sponge 5. Make things convenient for maintainer to lie prone and slow down pressure on the top, avoid long-time maintenance to cause the scotch to maintainer.

Example 4

Referring to fig. 5, the non-stop operation apparatus and method for 10KV high-voltage switch cabinet bus described in this embodiment is different from embodiment 3 in that: and a flashlight fixing support 7 is arranged at the upper part of the insulating plate 2. And the flashlight fixing support 7 is provided with an LED flashlight 6. The maintenance staff can conveniently maintain the lamp in a weak light at night, the visual field of the maintenance staff is limited, and the visual field can be enlarged by means of the flashlight.

Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and other modifications or equivalent substitutions made by the technical solutions of the present invention by those of ordinary skill in the art should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.