CN106654940B - Medium-voltage switchgear overhauls dolly - Google Patents
Medium-voltage switchgear overhauls dolly Download PDFInfo
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- CN106654940B CN106654940B CN201610873812.6A CN201610873812A CN106654940B CN 106654940 B CN106654940 B CN 106654940B CN 201610873812 A CN201610873812 A CN 201610873812A CN 106654940 B CN106654940 B CN 106654940B
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- cross beam
- insulating plate
- push
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- 230000007246 mechanism Effects 0.000 claims abstract description 45
- 238000012423 maintenance Methods 0.000 claims abstract description 28
- 230000003068 static effect Effects 0.000 claims abstract description 14
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 238000009413 insulation Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B3/00—Apparatus specially adapted for the manufacture, assembly, or maintenance of boards or switchgear
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
- Warehouses Or Storage Devices (AREA)
Abstract
The medium-voltage switch cabinet overhaul trolley is applied to overhaul of a high-voltage switch cabinet, the upper lead screw driving mechanism and the lower lead screw driving mechanism respectively drive the upper cross beam, the lower cross beam pushes the upper push plate and the lower push plate to open the static contact cover curtain door of the high-voltage switch cabinet, the insulating plate and the lower insulating plate are respectively linked with the upper cross beam and the lower cross beam, the static contact cover curtain door of the single-side high-voltage switch cabinet can be selectively opened according to the needs, and an insulating plate is additionally arranged outside the opened static contact cover curtain door of the high-voltage switch cabinet, so that double protection is achieved, an operator can overhaul the cabinet conveniently, meanwhile, the safety factor is high, the overhaul field can be monitored and warned, the use and maintenance are convenient, the structure is simple, and the cost is low.
Description
Technical Field
The invention relates to a medium-voltage switch cabinet overhauling trolley which is applied to overhauling work of medium-voltage and high-voltage switch cabinets of a transformer substation.
Background
The medium-high voltage switch cabinet is one of the most conventional and important equipment of the transformer substation, the medium-high voltage switch cabinet equipment has high application frequency and wide distribution range in a power grid, and the daily maintenance work tasks are numerous, but the medium-high voltage switch cabinet has small volume, complex structure, difficult maintenance, high labor intensity, low working efficiency and high maintenance cost; the middle-voltage switch cabinet maintenance trolley in the prior art generally adopts a fixed push block to open the upper static contact head cover curtain door and the lower static contact head cover curtain door simultaneously, and the upper static contact head and the lower static contact head are exposed simultaneously, so that potential safety hazards are easily caused, and a full-time guardian is required to be equipped; and the system is overhauled and is operated, the measurement accuracy is affected due to the fact that the system is abnormal due to unexpected factors such as foreign matters entering, a large-scale power failure is needed, the maintenance period is long, the manpower and resource consumption is high, the overhauling cost is high, and the resource is wasted.
Disclosure of Invention
The invention aims to solve the technical problem of providing the medium-voltage switch cabinet overhauling trolley which is convenient for operators to overhaul the cabinet body, has a simple structure, is convenient to operate, saves time and labor and has high safety coefficient.
The invention discloses a medium-voltage switch cabinet maintenance trolley, which comprises a chassis, a guide supporting plate, a cross beam, a push plate and a screw rod driving mechanism, wherein the guide supporting plate is arranged on the chassis and used for providing guide for the cross beam, the cross beam can move back and forth along a guide groove on the side wall of the guide supporting plate, the push plate is fixedly arranged at two ends of the cross beam and can move back and forth along with the cross beam to push a curtain door of a fixed contact cover of a high-voltage switch cabinet to open, and the screw rod driving mechanism is arranged in the middle of a bottom plate of the guide supporting plate and can drive the cross beam to move back and forth, and is characterized in that: an insulating plate is arranged in front of the guide supporting plate, and can shield a fixed contact cover mounting hole of the high-voltage switch cabinet when the insulating plate rotates around a hinge point and stands up; the two sides of the insulating plate are hinged with the front ends of the side walls of the guide supporting plates through mounting rods, the middle parts of the mounting rods are hinged with supporting connecting rods, the lower ends of the supporting connecting rods are hinged with the ends of the cross beams, and the cross beams drive the push plates to move forwards and backwards and simultaneously drive the mounting rods to push the insulating plate to rotate upwards from a horizontal position to a vertical position or rotate downwards from the vertical position to be stored in the horizontal position through the supporting connecting rods;
the push plate consists of an upper push plate and a lower push plate, the cross beam consists of an upper cross beam and a lower cross beam, and the screw rod driving mechanism consists of an upper screw rod driving mechanism and a lower screw rod driving mechanism; the upper push plate is arranged at two ends of the upper cross beam, the lower push plate is arranged at two ends of the lower cross beam, the upper lead screw driving mechanism drives the upper cross beam to drive the upper push plate to move forwards and backwards, and the lower lead screw driving mechanism drives the lower cross beam to drive the lower push plate to move forwards and backwards;
the two ends of the beam are fixedly connected with the push plate through connecting pieces at the end parts, the connecting pieces penetrate through guide grooves of the guide support plates through guide sleeves and screw structures to be connected with the push plate, and the connecting pieces drive the push plate to move back and forth along the guide grooves through the guide sleeves and the screw structures; the lower end of a supporting connecting rod of the installation insulating plate is hinged with a connecting piece at the end part of the upper beam;
the lower half part of the insulating plate is of a hollow structure, a lower insulating plate is arranged in the hollow structure, the lower insulating plate is connected with the front wall plate of the guide supporting plate through a hinge, the lower insulating plate is provided with a connecting rod mechanism, and the connecting rod mechanism consists of a lower connecting rod, an upper connecting rod and a push rod; the lower end of the lower connecting rod is hinged on the bottom plate of the guide supporting plate, and the upper end of the lower connecting rod is connected with the ejector rod through the upper connecting rod; the lower end of the ejector rod is hinged to the front wall plate of the guide support plate, the upper end of the ejector rod is inserted into the guide groove of the upper groove plate of the lower insulating plate through a guide pin and can move up and down along the guide groove, the lower cross beam pushes the lower connecting rod to drive the lower insulating plate to rotate upwards to erect when moving forwards, and the lower cross beam drives the lower insulating plate to rotate downwards to a horizontal position to be stored when moving backwards through a connecting rod mechanism; the position of the upper cross beam corresponding to the lower connecting rod is provided with a groove, so that the front and back movement of the lower connecting rod is not influenced;
the connecting piece is provided with a universal wheel structure on one side of the connecting piece facing the guide groove of the guide support plate, and the connecting piece moves back and forth along the side wall of the guide support plate through the universal wheel;
the bottom plates of the guide support plates on two sides of the screw rod driving mechanism are provided with balance guide shafts for providing guide for the cross beam and keeping balance of the cross beam, and the balance guide shafts consist of an upper balance guide shaft and a lower balance guide shaft;
the upper end of the insulating plate is provided with a foldable extension section, and the insulating plate is connected with the extension section through a 180-degree self-locking hinge;
the screw rod of the screw rod driving mechanism is a trapezoidal screw rod;
the insulating board, the lower insulating board and the extension section are made of epoxy resin.
The medium-voltage switch cabinet maintenance trolley is applied to high-voltage switch cabinet maintenance work, can selectively open the fixed contact cover curtain door of the single-side high-voltage switch cabinet according to the requirement, and adds an insulating plate outside the fixed contact cover curtain door of the high-voltage switch cabinet which does not need to be opened, so that double protection is achieved, an operator can conveniently maintain the cabinet body, misoperation can not occur, meanwhile, the safety coefficient is high, monitoring and warning can be carried out on a maintenance site, the use and maintenance are convenient, the structure is simple, the cost is low, and the trolley can be reused.
Drawings
Fig. 1 is a schematic diagram of a perspective structure of a maintenance trolley for a medium-voltage switch cabinet according to an embodiment of the invention;
fig. 2 is a schematic plan view of a maintenance trolley for a medium-voltage switch cabinet according to an embodiment of the invention;
FIG. 3 is a schematic view of the partially enlarged structure of FIG. 2;
FIG. 4 is a rear view of FIG. 2;
fig. 5 is a schematic diagram of a plane structure of an insulating plate on a maintenance trolley of a medium-voltage switch cabinet according to an embodiment of the invention:
fig. 6 is a schematic plan view of a structure of an insulating plate on a medium voltage switchgear maintenance trolley in an upright state and an extension section opened in the embodiment of the present invention:
fig. 7 is a schematic diagram of a planar structure of an insulating plate under a maintenance trolley of a medium-voltage switch cabinet according to an embodiment of the invention:
fig. 8 is a schematic plan view of a vertical state of an insulating plate under a maintenance trolley of a medium-voltage switch cabinet according to an embodiment of the invention.
Detailed Description
As shown in the figure, a medium voltage switchgear maintenance trolley is characterized in that a guide support plate 2 for providing guide for a beam and a beam capable of moving back and forth along a guide groove on the side wall of the guide support plate 2 are arranged on a chassis 1, push plates capable of moving back and forth along with the beam to push a fixed contact cover curtain door of a high voltage switchgear to open are fixedly arranged at two ends of the beam, a screw rod driving mechanism capable of driving the beam to move back and forth is arranged in the middle of the bottom plate of the guide support plate 2, an insulating plate 31 is arranged in front of the guide support plate 2, and the insulating plate 31 can shield a fixed contact cover mounting hole of the high voltage switchgear when rotating around a hinge point to be firm; two sides of the insulating plate 31 are hinged with the front end of the side wall of the guide supporting plate 2 through a mounting rod 23, the middle part of the mounting rod 23 is hinged with a supporting connecting rod 22, the lower end of the supporting connecting rod 22 is hinged with the end part of a cross beam, the cross beam drives the push plate to move forwards and backwards, and meanwhile, the mounting rod 23 is driven by the supporting connecting rod 22 to push the insulating plate 31 to rotate upwards from a horizontal position to a vertical position or rotate downwards from the vertical position to be stored in the horizontal position; an insulating plate is automatically added outside the fixed contact cover mounting hole of the opened high-voltage switch cabinet, so that the double safety function is achieved, the insulating protection of the high-voltage switch cabinet maintainer is improved, the mechanism is accurate to operate, and the safety coefficient is high.
The end parts at two ends of the cross beam are fixedly connected with the connecting piece 17, the connecting piece 17 passes through the guide sleeve 41 and the screw rod 42 to penetrate through the guide groove of the guide support plate 2 and is connected with the push plate, the connecting piece 17 drives the push plate to move back and forth along the guide groove through the guide sleeve 41 and the screw rod 42, the guide sleeve 41 rotates around the screw rod 42 while moving back and forth in the guide groove, the cross beam can easily drive the push plate to move back and forth, and the static contact head cover curtain door of the high-voltage switch cabinet is light in opening operation, simple in structure, time-saving and labor-saving.
The push plate, the cross beam and the screw rod driving mechanism are divided into an upper part and a lower part, and the upper part and the lower part of the push plate, the cross beam and the screw rod driving mechanism form an upper curtain door opening mechanism and a lower curtain door opening mechanism which are irrelevant; the push plate is divided into an upper push plate 3 and a lower push plate 4, the cross beam is divided into an upper cross beam 15 and a lower cross beam 16, and the screw rod driving mechanism is divided into an upper screw rod driving mechanism 9 and a lower screw rod driving mechanism 10; the upper push plate 3 is arranged at two ends of the upper cross beam 15, the lower push plate 4 is arranged at two ends of the lower cross beam 16, the upper lead screw driving mechanism 9 pushes the upper cross beam 15 to drive the upper push plate 3 to move forwards and backwards, and the lower lead screw driving mechanism 10 pushes the lower cross beam 16 to drive the lower push plate 4 to move forwards and backwards; the lower end of the support connecting rod 22 for installing the insulating plate 31 is hinged with the connecting piece 17 at the end part of the upper cross beam 15, and when the upper cross beam 15 moves forwards and backwards, the connecting piece 17 pushes the support connecting rod 22 to drive the insulating plate 31 to rotate upwards from the horizontal position to the vertical position or rotate downwards from the vertical position to the horizontal position for storage.
The lower half part of the insulating plate 31 is of a hollow structure, a lower insulating plate 30 is arranged in the hollow structure, the lower insulating plate 30 is connected with the front wall plate of the guide supporting plate 2 through a hinge 28, the lower insulating plate 30 is provided with a link mechanism, and the link mechanism consists of a lower link 24, an upper link 5 and a push rod 26; the lower end of the lower connecting rod 24 is hinged on the bottom plate of the guide supporting plate 2, and the upper end is connected with the ejector rod 26 through the upper connecting rod 25; the lower end of the ejector rod 26 is hinged to the front wall plate of the guide support plate 2, the upper end of the ejector rod 26 is inserted into the guide groove of the upper groove plate 27 of the lower insulating plate 30 through a guide pin and can move up and down along the guide groove, the rear side surface of the lower connecting rod 24 is extruded when the lower cross beam 16 moves forwards, the lower connecting rod 24 is pressed and then rotates upwards around a lower pivot to jack the ejector rod 26 through the upper connecting rod 25, the ejector rod 26 rotates upwards around the lower pivot and supports the lower insulating plate 30 to rotate upwards around the lower edge, the upper end of the ejector rod 26 rotates upwards to support the lower insulating plate 30 and slides downwards along the guide groove of the groove plate 27 until the lower insulating plate 30 rotates upwards to be in a vertical state, the axle center of the ejector rod 26 and the center of the guide groove of the groove plate 27 are also positioned on the same vertical line, and the lower insulating plate 30 is limited and cannot rotate continuously; when the lower beam 16 moves backwards, the lower insulating plate 30 can be driven by a connecting rod mechanism to rotate downwards to be stored in a horizontal position, or the lower insulating plate 30 can be driven by other mechanisms such as a steel wire rope, a torsion spring and the like to rotate downwards to be stored in the horizontal position, so that the positioning is accurate, and the structure is simple; the upper cross beam 15 has a groove at a position corresponding to the lower link 24 to provide a movement gap for the lower link 24 without affecting the forward and backward movement of the lower link 24.
The bottom plates of the guide support plates 2 on two sides of the screw rod driving mechanism are provided with balance guide shafts for providing guide for the cross beam and keeping balance of the cross beam, and the balance guide shafts consist of an upper balance guide shaft 11 and a lower balance guide shaft 12; when the upper and lower screw rod driving mechanisms drive the upper and lower cross beams to move back and forth, the two ends of the upper and lower cross beams respectively move back and forth along the upper and lower balance guide shafts, the cross beams keep stable movement in the length direction, and the two ends of the cross beams have good synchronism and cannot deviate and jam.
One side of connecting piece 17 towards the guide groove of guide support plate 2 is provided with universal wheel 43 structure, and connecting piece 17 passes through universal wheel 43 and reciprocates along guide support plate lateral wall, and connecting piece 17 and guide support plate 2 lateral wall are each other contactless, and no frictional resistance when moving, the crossbeam both ends drive the push pedal through connecting piece 17 and move in balance, and the curtain door opens steadily.
The extension section 32 that can fold is still connected to insulation board 31, is connected through 180 auto-lock hinge 29 between insulation board 31 and the extension section 32, and when insulation board 31 was in vertical position, extension section 32 upwards opened the back and increased insulation board 31 height, can be applicable to the high tension switchgear static contact mounting hole size of different specifications, application scope is wide, and the suitability is strong, and safety protection coefficient is high.
The screw rod of the screw rod driving mechanism adopts a trapezoidal screw rod, so that the screw rod is ensured to be completely sealed in the trolley, and the operability is improved; the trapezoidal screw rod moves by sliding friction, has larger friction force, moderate surface damage, shorter service life and simple structure, can be self-locked, and has the characteristics of low efficiency, low precision, low cost and good rigidity; the lower insulating plate 30, the insulating plate 31 and the extension section 32 are made of epoxy resin materials, so that the molding capability is high, and various structural products can be flexibly designed according to the requirements; low cost, simple manufacturing process, and portable finished products.
In the medium-voltage switch cabinet maintenance trolley, warning lamps are further arranged on an insulating plate 31 and a lower insulating plate 30, and when a screw rod driving mechanism drives a cross beam and a push plate to move forward to a set position, the warning lamps are controlled to be turned on and off through a travel switch arranged on a chassis; the warning lamp can be in different pattern forms according to the use occasion, specification and model and the like.
The medium-voltage switch cabinet maintenance trolley is applied to high-voltage switch cabinet maintenance work, can selectively open the fixed contact cover curtain door of the single-side high-voltage switch cabinet according to the requirement, is additionally provided with an insulating plate outside the fixed contact cover curtain door of the high-voltage switch cabinet which does not need to be opened, achieves double protection, is convenient for operators to maintain the cabinet body, cannot cause misoperation, has high safety coefficient, reduces the power failure range and the power failure time, improves the working efficiency, can monitor and warn the maintenance site, eliminates potential safety hazard, is convenient to use and maintain, has a simple structure, is low in cost, and can be repeatedly used.
The device is an auxiliary tool for ensuring safety when the cabinet in the high-voltage cabinet is overhauled, and is put into operation when the high-voltage cabinet needs to be overhauled, the single-side static contact cover curtain door of the high-voltage switch cabinet can be opened respectively, and an insulating plate is added outside the static contact cover curtain door which does not need to be opened, so that the double-insurance effect is achieved; an insulating plate is added outside the static contact cover curtain door, so that double safety protection can be provided for maintenance personnel, the static contact cover curtain door is generally made of a metal material, and the insulating performance can be improved after the insulating plate is added; the fixed contact cover curtain door and the linkage mechanism are easy to fail due to abrasion in the long-term use process of the high-voltage cabinet, cannot be opened and closed smoothly, and even the phenomenon that the fixed contact cover curtain door cannot be closed occurs.
Claims (6)
1. The utility model provides a medium voltage switchgear overhauls dolly, including chassis (1), install guide support board (2) that provide the direction for the crossbeam on chassis (1), can follow the guide way of guide support board (2) lateral wall back and forth movable crossbeam, fixed mounting can promote the push pedal that high tension switchgear static contact cover curtain door opened along with the crossbeam back and forth movement at crossbeam both ends, and install at the bottom plate middle part of guide support board (2) and can drive the lead screw drive mechanism that the crossbeam reciprocated, its characterized in that: an insulating plate (31) is arranged in front of the guide supporting plate (2), and the insulating plate (31) can shield a fixed contact cover mounting hole of the high-voltage switch cabinet when rotating around a hinging point to be erected; the two sides of the insulating plate (31) are hinged with the front ends of the side walls of the guide supporting plate (2) through mounting rods (23), the middle part of each mounting rod (23) is hinged with a supporting connecting rod (22), the lower ends of the supporting connecting rods (22) are hinged with the end parts of the cross beams, and the cross beams drive the push plates to move forwards and backwards and drive the mounting rods (23) to push the insulating plate (31) to rotate upwards from a horizontal position to a vertical position or rotate downwards from the vertical position to the horizontal position to be stored;
the two ends of the cross beam are fixedly connected with the push plate through connecting pieces (17) at the end parts, the connecting pieces (17) penetrate through guide grooves of the guide support plate (2) through guide sleeves (41) and screw rods (42) structures to be connected with the push plate, and the connecting pieces (17) drive the push plate to move back and forth along the guide grooves through the guide sleeves (41) and screw rods (42) structures;
the push plate consists of an upper push plate (3) and a lower push plate (4), the cross beam consists of an upper cross beam (15) and a lower cross beam (16), and the screw rod driving mechanism consists of an upper screw rod driving mechanism (9) and a lower screw rod driving mechanism (10); the upper push plate (3) is arranged at two ends of the upper cross beam (15), the lower push plate (4) is arranged at two ends of the lower cross beam (16), the upper lead screw driving mechanism (9) pushes the upper cross beam (15) to drive the upper push plate (3) to move forwards and backwards, and the lower lead screw driving mechanism (10) pushes the lower cross beam (16) to drive the lower push plate (4) to move forwards and backwards; the lower end of a supporting connecting rod (22) provided with an insulating plate (31) is hinged with a connecting piece (17) at the end part of the upper cross beam (15);
the lower half part of the insulating plate (31) is of a hollow structure, a lower insulating plate (30) is arranged in the hollow structure, the lower insulating plate (30) is connected with the front wall plate of the guide supporting plate (2) through a hinge (28), the lower insulating plate (30) is provided with a connecting rod mechanism, and the connecting rod mechanism consists of a lower connecting rod (24), an upper connecting rod (25) and a push rod (26); the lower end of the lower connecting rod (24) is hinged on the bottom plate of the guide supporting plate (2), and the upper end is connected with the ejector rod (26) through the upper connecting rod (25); the lower end of the ejector rod (26) is hinged to the front wall plate of the guide supporting plate (2), the upper end of the ejector rod is inserted into the guide groove of the upper groove plate (27) of the lower insulating plate (30) through a guide pin and can move up and down along the guide groove, the lower cross beam (16) pushes the lower connecting rod (24) to drive the lower insulating plate (30) to rotate upwards to erect when moving forwards, and the lower cross beam (16) drives the lower insulating plate (30) to rotate downwards to a horizontal position to be stored through a connecting rod mechanism when moving backwards; the upper cross beam (15) is provided with a groove at the position corresponding to the lower connecting rod (24).
2. The medium voltage switchgear maintenance trolley of claim 1 wherein: the connecting piece (17) is provided with a universal wheel (43) structure towards one side of the guide groove of the guide support plate (2), and the connecting piece (17) moves back and forth along the side wall of the guide support plate (2) through the universal wheel (43).
3. The medium voltage switchgear maintenance trolley of claim 1 wherein: the bottom plates of the guide support plates (2) on two sides of the screw rod driving mechanism are provided with balance guide shafts for guiding the cross beam and keeping the balance of the cross beam, and the balance guide shafts consist of an upper balance guide shaft (11) and a lower balance guide shaft (12).
4. The medium voltage switchgear maintenance trolley of claim 1 wherein: the insulating board (31) is provided with an extension section (32) which can be folded, and the upper insulating board (31) is connected with the extension section (32) through a 180-degree self-locking hinge (29).
5. The medium voltage switchgear maintenance trolley of claim 1 wherein: the screw rod of the screw rod driving mechanism is a trapezoidal screw rod.
6. The medium voltage switchgear maintenance trolley of claim 1 wherein: the lower insulating plate (30), the insulating plate (31) and the extension section (32) are made of epoxy resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610873812.6A CN106654940B (en) | 2016-09-30 | 2016-09-30 | Medium-voltage switchgear overhauls dolly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610873812.6A CN106654940B (en) | 2016-09-30 | 2016-09-30 | Medium-voltage switchgear overhauls dolly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106654940A CN106654940A (en) | 2017-05-10 |
| CN106654940B true CN106654940B (en) | 2024-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610873812.6A Active CN106654940B (en) | 2016-09-30 | 2016-09-30 | Medium-voltage switchgear overhauls dolly |
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| CN (1) | CN106654940B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107394552B (en) * | 2017-09-01 | 2023-09-26 | 贵州电网有限责任公司 | Switch cabinet grounding wire mounting and dismounting device and operation method |
| CN110031730B (en) * | 2019-03-27 | 2021-11-05 | 内蒙古京能盛乐热电有限公司 | Insulation testing equipment and method for 6/10kV switch cabinet with five-prevention function |
| CN110493993B (en) * | 2019-08-29 | 2024-05-17 | 苏州艾克威尔科技有限公司 | A outer explosion-proof cabinet for high-voltage soft starter |
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| CN201594706U (en) * | 2009-09-29 | 2010-09-29 | 上海西门子开关有限公司 | Switch cabinet flexible door mechanism |
| CN201639183U (en) * | 2010-04-02 | 2010-11-17 | 辽宁省电力有限公司阜新供电公司 | Switch cabinet baffle valve |
| CN105162017A (en) * | 2015-10-12 | 2015-12-16 | 株洲时代装备技术有限责任公司 | Movable door isolation device used for handcart-type switch cabinet and handcart-type switch cabinet |
| CN105610076A (en) * | 2016-01-14 | 2016-05-25 | 国网福建省电力有限公司 | Novel grounding car for 10kV bus PT cabinet |
| CN206163964U (en) * | 2016-09-30 | 2017-05-10 | 国网江苏省电力公司镇江供电公司 | Medium voltage switchgear overhauls dolly |
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- 2016-09-30 CN CN201610873812.6A patent/CN106654940B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201594706U (en) * | 2009-09-29 | 2010-09-29 | 上海西门子开关有限公司 | Switch cabinet flexible door mechanism |
| CN201639183U (en) * | 2010-04-02 | 2010-11-17 | 辽宁省电力有限公司阜新供电公司 | Switch cabinet baffle valve |
| CN105162017A (en) * | 2015-10-12 | 2015-12-16 | 株洲时代装备技术有限责任公司 | Movable door isolation device used for handcart-type switch cabinet and handcart-type switch cabinet |
| CN105610076A (en) * | 2016-01-14 | 2016-05-25 | 国网福建省电力有限公司 | Novel grounding car for 10kV bus PT cabinet |
| CN206163964U (en) * | 2016-09-30 | 2017-05-10 | 国网江苏省电力公司镇江供电公司 | Medium voltage switchgear overhauls dolly |
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| CN106654940A (en) | 2017-05-10 |
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