CN109244912B - Special tool for replacing current transformer of 10kV middle-mounted switch cabinet - Google Patents
Special tool for replacing current transformer of 10kV middle-mounted switch cabinet Download PDFInfo
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- CN109244912B CN109244912B CN201811277552.1A CN201811277552A CN109244912B CN 109244912 B CN109244912 B CN 109244912B CN 201811277552 A CN201811277552 A CN 201811277552A CN 109244912 B CN109244912 B CN 109244912B
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- 230000007246 mechanism Effects 0.000 claims description 50
- 238000003860 storage Methods 0.000 claims description 8
- 238000003466 welding Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 3
- 230000003028 elevating effect Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000001965 increasing effect Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
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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
- H02B3/00—Apparatus specially adapted for the manufacture, assembly, or maintenance of boards or switchgear
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Abstract
The invention relates to the technical field of current transformer replacement tools, and provides a special tool for replacing a 10kV middle-mounted switch cabinet current transformer. The invention solves the technical problems that the traditional replacement mode needs electric power personnel to manually carry the current transformer for disassembly, the labor intensity of work is high, the operation is inconvenient, and safety accidents are easy to occur.
Description
Technical Field
The invention relates to the technical field of current transformer replacement tools, in particular to a special tool for replacing a 10kV middle-mounted switch cabinet current transformer.
Background
The current in the lines of power generation, power transformation, power transmission, power distribution and power utilization is greatly different from several amperes to several tens of thousands of amperes, and needs to be converted into more uniform current for convenient measurement, protection and control, and the voltage on the lines is generally higher, so that if direct measurement is dangerous, the current transformer is produced in order to safely measure the current, and the current transformer mainly plays the roles of current transformation and electrical isolation.
However, with the rapid development of economy, people are increasingly demanding on power consumption, and the requirement on power supply reliability of a power grid is increasingly high, so that under the condition of increasing power consumption demand, the current transformer used by the traditional switch cabinet cannot meet the requirement of resident power consumption, and in order to ensure the safe and reliable operation of a power system, the current transformer with larger capacity needs to be replaced.
In the actual replacement process of the current transformer, the inventor finds that the existing replacement mode has the following defects: the traditional replacement mode is that after opening the cubical switchboard door, the current transformer is being moved manually by the electric power personnel and the dismantlement work of bolt is being carried out simultaneously, because the cubical switchboard inner space is limited, can only allow alone to operate, because current transformer weight is great, consequently, electric power personnel's work intensity of labour is big when changing, operates inconveniently, the incident appears easily.
Therefore, the development of a special tool for replacing the current transformer of the 10kV middle-mounted switch cabinet has urgent research value, and also has good economic benefit and industrial application potential, which are the basis of the power completed by the invention.
Disclosure of Invention
The present inventors have conducted intensive studies to overcome the above-identified drawbacks of the prior art, and as a result, have completed the present invention after having made a great deal of creative efforts.
Specifically, the technical problems to be solved by the present invention are: the utility model provides a 10kV middle-arranged cubical switchboard current transformer changes specialized tool to solve traditional change mode and need the electric power personnel to manually remove current transformer and dismantle, work intensity of labour is big, operates inconveniently, the technical problem of incident appears easily.
In order to solve the technical problems, the technical scheme of the invention is as follows:
the special tool for replacing the 10kV middle-mounted switch cabinet current transformer comprises a base, wherein a lifting mechanism is fixedly mounted on the base, a first supporting column is fixedly mounted on the lifting mechanism, a fastening mechanism for disassembling and assembling the current transformer is rotatably mounted on the first supporting column, and a supporting rod for supporting the fastening mechanism is connected between the fastening mechanism and the first supporting column;
the fastening mechanism comprises a second supporting column, a rotating shaft is fixedly installed at one end, connected with the first supporting column, of the second supporting column, the rotating shaft is rotatably installed with the first supporting column, two fixing rods used for being fixedly connected with the current transformer are fixedly installed on the second supporting column, and a plurality of fastening bolts matched with threaded holes of the current transformer are arranged on the two fixing rods;
the sliding device is characterized in that a sliding block is arranged on the second supporting column in a sliding mode, one end of the sliding block is fixedly connected with a pushing mechanism used for pushing the sliding block to slide, the pushing mechanism is fixedly installed on the second supporting column, the sliding block is connected with one end of the supporting rod in a hinged mode, the other end of the supporting rod is connected with a fixing base in a hinged mode, and the fixing base is fixedly installed on the first supporting column.
As an improved scheme, the bottom of the base is provided with a position avoiding groove for avoiding a bottom frame of the switch cabinet.
As an improved scheme, the lifting mechanism adopts a pedal hydraulic pump, a cylinder body of the pedal hydraulic pump is fixedly installed on the base, and a piston rod of the pedal hydraulic pump is fixedly connected with the first support column.
As an improved scheme, one end of the rotating shaft extends out of the first supporting column to form an extending end, and a hand wheel is fixedly mounted on the extending end.
As an improved scheme, the pushing mechanism adopts an electric hydraulic push rod, a piston rod of the electric hydraulic push rod is fixedly connected with the sliding block, a cylinder body of the electric hydraulic push rod is fixedly arranged on the second supporting column, the cylinder body of the electric hydraulic push rod is connected with a control switch through a lead, and the control switch is detachably arranged on the surface of the cylinder body of the pedal hydraulic pump through a clamping groove.
As an improved scheme, a T-shaped sliding groove is formed in the second supporting column, the sliding block is of a T-shaped structure, and the sliding block is matched with the T-shaped sliding groove and is slidably mounted in the T-shaped sliding groove.
As an improved scheme, a baffle plate used for limiting the rotation angle of the second support column is arranged at one end, connected with the second support column, of the first support column, and the baffle plate and the fixed rod are located on the same side.
As an improved scheme, a storage battery is fixedly mounted on the base and is connected with the control switch through a lead.
Through the technical scheme, the technical problems that in the traditional replacement mode, an electric power worker needs to manually move the current transformer to disassemble, the working labor intensity is high, the operation is inconvenient, and safety accidents are easy to occur are solved.
Drawings
FIG. 1 is a schematic structural view of the present invention in an upright position;
FIG. 2 is a schematic front view of the present invention;
FIG. 3 is a schematic side view of the present invention;
FIG. 4 is a schematic diagram of the horizontal configuration of the present invention;
FIG. 5 is a schematic view of the slider configuration of the present invention;
wherein each numerical designation refers to a particular meaning, element, and/or component, respectively, as follows in the figures.
In the figure: 1. the base, 101, keep away the position groove, 2, elevating system, 201, pedal hydraulic pump, 2011, pedal hydraulic pump's cylinder body, 2012, pedal hydraulic pump's piston rod, 3, first support column, 4, fastening device, 401, the second support column, 402, the pivot, 403, the dead lever, 404, fastening bolt, 405, the hand wheel, 406, the slider, 407, pushing mechanism, 4071, electronic hydraulic push rod, 4072, electronic hydraulic push rod's piston rod, 4073, electronic hydraulic push rod's cylinder body, 408, the fixing base, 409, "T" type spout, 410, the baffle, 5, the bracing piece, 6, current transformer, 601, current transformer's screw hole, 7, control switch, 8, the draw-in groove, 9, the battery, 10, the handrail.
Detailed Description
The invention is further illustrated by the following specific examples. The use and purpose of these exemplary embodiments are to illustrate the present invention, not to limit the actual scope of the present invention in any way, and not to limit the scope of the present invention in any way.
As shown in fig. 1 and 4, the special tool for replacing the current transformer 6 of the 10kV central-positioned switch cabinet comprises a base 1, wherein an elevating mechanism 2 is fixedly mounted on the base 1, a first supporting column 3 is fixedly mounted on the elevating mechanism 2, a fastening mechanism 4 for disassembling and assembling the current transformer 6 is rotatably mounted on the first supporting column 3, and a supporting rod 5 for supporting the fastening mechanism 4 is connected between the fastening mechanism 4 and the first supporting column 3.
In this embodiment, as shown in fig. 1 and fig. 4, the special tool for replacing the 10kV central switch cabinet current transformer 6 includes a base 1, the base 1 is used for bearing the whole device, the base 1 is made of cast iron, so as to increase the weight of the base 1 and enhance the stability of the whole device, a lifting mechanism 2 is fixedly installed on the base 1 through bolts, the lifting mechanism 2 is used for adjusting the height of the special tool for replacing the 10kV central switch cabinet current transformer 6, so that electric power personnel can replace the current transformer 6 more conveniently and more comfortably, and work fatigue is reduced, the lifting mechanism 2 is fixedly connected with a first support column 3 through bolts or in a welding manner, in this embodiment, a welding manner is used to increase the connection stability, the first support column 3 is used for bearing a fastening mechanism 4, and the first support column 3 is rotatably installed with a fastening mechanism 4, the fastening mechanism 4 can be fixed with the current transformer 6 in the switch cabinet through bolts, the fixed current transformer 6 is rotated to the horizontal direction, and the replacement of electric power personnel is convenient, the supporting rod 5 is connected between the fastening mechanism 4 and the first supporting column 3, the supporting rod 5 plays a role of supporting the fastening mechanism 4 when the fastening mechanism 4 fixes the current transformer 6 and rotates to the horizontal direction, the structural strength of a special tool for replacing the 10kV middle-mounted switch cabinet current transformer 6 is increased, the structure is more stable, in sum, the special tool for replacing the electric power personnel with the 10kV middle-mounted switch cabinet current transformer 6 replaces the electric power personnel to manually move the current transformer 6 for disassembly, the working strength of the electric power personnel is reduced, and the current transformer 6 is rotated to the horizontal direction through the fastening mechanism 4 for disassembly, need not operate in the finite space of cubical switchboard, make electric power personnel's operation more convenient, also reduced the emergence of incident simultaneously, through adopting above-mentioned scheme, solved traditional change mode and needed electric power personnel to manually remove current transformer 6 and dismantle, work intensity of labour is big, operates inconveniently, appears the technical problem of incident easily.
In this embodiment, as shown in fig. 1, the bottom of the base 1 is provided with the avoiding groove 101 for avoiding the bottom frame of the switch cabinet, when the switch cabinet is used, the bottom of the base 1 is machined with the avoiding groove 101, the avoiding groove 101 is used for avoiding the bottom frame of the switch cabinet when the special tool for replacing the 10kV central switch cabinet current transformer 6 is moved to the opening of the switch cabinet, so that the special tool for replacing the 10kV central switch cabinet current transformer 6 can be horizontally placed, the situation of tilting and shaking is avoided, and the stability of the whole device is facilitated.
In this embodiment, as shown in fig. 1, the lifting mechanism 2 is a pedal hydraulic pump 201, a cylinder 2011 of the pedal hydraulic pump is fixedly installed on the base 1, a piston rod 2012 of the pedal hydraulic pump is fixedly connected with the first support column 3, when the lifting mechanism 2 is the pedal hydraulic pump 201, the pedal hydraulic pump 201 is common in daily life and belongs to the common knowledge of technical personnel in the technical field, and details are not repeated herein, in this embodiment, a pedal hydraulic rod is the pedal hydraulic pump 201 produced by franchisee hydraulic machine limited company in texas city, the cylinder 2011 of the pedal hydraulic pump is fixedly installed on the base 1 through bolts, the cylinder 2011 of the pedal hydraulic pump is also fixedly installed with the armrest 10 through welding, the armrest 10 is used for facilitating electric personnel to move the whole device, and when in operation, the armrest 10 can be held by a hand to exert a better force, keeping device's stability, piston rod 2012 of pedal hydraulic pump passes through bolt or welded mode and 3 fixed connection of first support column, and through adopting pedal hydraulic pump 201, the height that the adjustment 10kV middle-placed type cubical switchboard current transformer 6 that electric power personnel can be free changed specialized tool makes things convenient for electric power personnel to change current transformer 6.
In this embodiment, as shown in fig. 1, 3 and 4, the fastening mechanism 4 includes a second supporting column 401, a rotating shaft 402 is fixedly installed at one end of the second supporting column 401 connected to the first supporting column 3, the rotating shaft 402 is rotatably installed with the first supporting column 3, two fixing rods 403 for fixedly connecting to the current transformer 6 are fixedly installed on the second supporting column 401, a plurality of fastening bolts 404 matching with the threaded holes 601 of the current transformer are respectively installed on the two fixing rods 403, when in use, the fastening mechanism 4 includes the second supporting column 401, a rotating shaft 402 is fixedly installed at one end of the second supporting column 401 connected to the first supporting column 3 by welding, the rotating shaft 402 is rotatably installed on the first supporting column 3 through a bearing, two fixing rods 403 are fixedly installed on the second supporting column 401 through bolts, a plurality of threaded holes are respectively installed on the two fixing rods 403, the threaded hole is internally provided with a fastening bolt 404, the fixing rod 403 is used for connecting with a threaded hole in the current transformer 6 through the fastening bolt 404, so that the current transformer 6 can be fixedly arranged on the fixing rod 403, and the second supporting column 401 rotates to the position of the horizontal plane, so that the current transformer 6 rotates to move out of the switch cabinet, and the replacement of electric power personnel is facilitated.
In this embodiment, as shown in fig. 1, one end of the rotating shaft 402 extends out of the first supporting column 3 and forms an extending end, a hand wheel 405 is fixedly mounted on the extending end, when in use, one end of the rotating shaft 402 extends out of the first supporting column 3 and forms an extending end, the extending end is fixedly mounted with a hand wheel 405 through a bolt, the rotating shaft 402 is fixedly connected with the second supporting column 401, the hand wheel 405 is fixedly connected with the rotating shaft 402, the second supporting column 401 can be manually rotated through the hand wheel 405, a clamping dead point exists in the vertical direction of the second supporting column 401, so that the second supporting column 401 cannot normally rotate, through the hand wheel 405, an electric person can manually rotate the second supporting column 401, and the second supporting column 401 can smoothly rotate to a horizontal position.
In this embodiment, as shown in fig. 1 and fig. 5, a sliding block 406 is slidably mounted on the second supporting pillar 401, one end of the sliding block 406 is fixedly connected with a pushing mechanism 407 for pushing the sliding block 406 to slide, the pushing mechanism 407 is fixedly mounted on the second supporting pillar 401, the sliding block 406 is hinged to one end of the supporting rod 5, the other end of the supporting rod 5 is hinged to a fixing seat 408, the fixing seat 408 is fixedly mounted on the first supporting pillar 3, the second supporting pillar 401 is provided with a "T" shaped sliding slot 409, the sliding block 406 is also in a "T" shaped structure, the sliding block 406 is adapted to the "T" shaped sliding slot 409 and is slidably mounted in the "T" shaped sliding slot 409, when in use, the second supporting pillar 401 is provided with a "T" shaped sliding slot 409, the sliding block 406 is slidably mounted in the "T" shaped sliding slot 409, the sliding block 406 is also in a "T" shaped structure, the sliding, the sliding block 406 can slide in the T-shaped sliding groove 409 and cannot fall off, one end of the sliding block 406 is fixedly provided with a pushing mechanism 407 through a bolt, the pushing mechanism 407 is used for pushing the sliding block 406 to slide in the T-shaped sliding groove 409, the pushing mechanism 407 is fixedly arranged on the second supporting column 401 through a bolt, the sliding block 406 is hinged with one end of the supporting rod 5, the other end of the supporting rod 5 is hinged with a fixing seat 408, the fixing seat 408 is fixedly arranged on the first supporting column 3 through a welding mode, the supporting rod 5 is used for driving the supporting rod 5 to move when the pushing mechanism 407 extends to push the sliding block 406 to move, so that the supporting rod 5 supports the second supporting column 401 to rotate, the second supporting column 401 rotates to a vertical state from a horizontal state, a fastening bolt 404 on the fixing rod 403 is conveniently and fixedly connected with the current transformer 6, or when the pushing mechanism 407, the pulling slide block 406 moves to further drive the support rod 5 to move, so that the support rod 5 drives the second support column 401 to rotate to a horizontal state from a vertical state, and the horizontal placement of the current transformer 6 is realized.
In this embodiment, as shown in fig. 1 and fig. 2, an electric hydraulic push rod 4071 is used as the pushing mechanism 407, a piston rod 4072 of the electric hydraulic push rod is fixedly connected to the slider 406, a cylinder 4073 of the electric hydraulic push rod is fixedly mounted on the second supporting column 401, the cylinder 4073 of the electric hydraulic push rod is connected to a control switch 7 through a wire, the control switch 7 is detachably mounted on the surface of a cylinder 2011 of the pedal hydraulic pump through a clamping slot 8, when the pushing mechanism 407 is used, the electric hydraulic push rod 4071 is used as the pushing mechanism 407, the electric hydraulic push rod 4071 is common in daily life and belongs to common knowledge of technicians in the technical field, which is not described herein again, the electric hydraulic push rod 4071 has the capability of starting with load and overload protection, and meanwhile, the pushing and pulling forces of the electric hydraulic push rod 4071 can be adjusted wirelessly and speed can be adjusted wirelessly, and the operation is stable, when the, the piston rod can be self-locked at a certain position and is positioned in a pressure maintaining body, the piston rod 4072 of the electric hydraulic push rod is fixedly connected with the sliding block 406 through a bolt, the cylinder body of the electric hydraulic push rod is fixedly arranged on the second supporting column 401 through a bolt, the electric hydraulic push rod 4071 is used for pushing the sliding block 406 to move, the sliding block 406 is hinged with the supporting rod 5 and drives the second supporting column 401 to rotate through the movement of the supporting rod 5, so that the current transformer 6 is horizontally arranged, a driving motor is arranged in the cylinder body 4073 of the electric hydraulic push rod and is connected with the control switch 7 through a lead, the control switch 7 is used for controlling the extension and the shortening of the electric hydraulic push rod 4071, the cylinder body 2011 of the pedal hydraulic pump is fixedly provided with a clamping groove 8 through a bolt, the control switch 7 is detachably arranged in the clamping groove 8, and when an electric power person, when not in use, the control switch 7 can be clamped into the clamping groove 8, and the use is convenient.
In this embodiment, as shown in fig. 1 and 4, a baffle 410 for limiting a rotation angle of the second support column 401 is disposed at an end of the first support column 3 connected to the second support column 401, the baffle 410 and the fixing rod 403 are located at the same side, when in use, the baffle 410 is disposed at the end of the first support column 3 connected to the second support column 401, the baffle 410 and the fixing rod 403 are located at the same side, the baffle 410 is used for limiting the rotation angle of the second support column 401, so that the support column can only rotate from a horizontal state to a vertical state, and the rotation range is 90 degrees, as shown in fig. 1 and 4, the second support column 401 is prevented from rotating and the device cannot be used.
In this embodiment, as shown in fig. 1, a storage battery 9 is fixedly mounted on the base 1, the storage battery 9 is connected to the control switch 7 through a wire, when the electric vehicle is used, the storage battery 9 is fixedly mounted on the base 1 through a bolt, the storage battery 9 is connected to the control switch 7 through a wire, and the storage battery 9 is used for providing energy for the electric hydraulic push rod 4071, so that the electric hydraulic push rod 4071 can operate.
For ease of understanding, the working of the embodiments of the present invention is given below:
when the special tool for replacing the 10kV middle-mounted switch cabinet current transformer 6 is used, the special tool is firstly carried to a specified position, the control switch 7 is used for controlling the piston rod 4072 of the electric hydraulic push rod to extend, the piston rod pushes the sliding block 406 to slide along the T-shaped sliding groove 409 on the second supporting column 401, the sliding block 406 is hinged with one end of the supporting rod 5, the other end of the supporting rod 5 is hinged with the fixed seat 408, the fixed seat 408 is fixedly arranged on the first supporting column 3, the supporting rod 5 rotates due to the movement of the sliding block 406, the supporting rod 5 further pushes the second supporting column 401 to rotate around the rotating shaft 402, when the second supporting column 401 moves from the horizontal state to the vertical state, the movement is stopped, as shown in figure 1, the fastening bolt 404 on the fixed rod 403 is screwed with the threaded hole 601 of the current transformer, then the current transformer 6 is loosened from the bolt on the switch cabinet frame, and the control switch, in the process, as shown in fig. 4, because the special tool for replacing the current transformer 6 of the 10kV central-located switch cabinet is a stuck point in the vertical state, the electric hydraulic push rod 4071 cannot make the slider 406 drive the support rod 5 to rotate, and the electric power personnel needs to manually rotate the hand wheel 405 to rotate the second support column 401 from the vertical state to the horizontal state, and under the contraction of the electric hydraulic push rod 4071, the second support column 401 rotates to the horizontal state to further drive the current transformer 6 to rotate to the horizontal state, and the electric power personnel can adjust the height of the second support column 401 by the pedal hydraulic pump 201 to make the work more comfortable, and after the current transformer 6 is replaced, the actions are repeated to rotate the second support column 401 from the horizontal state to the vertical state, the bolt on the switch cabinet frame is screwed with the current transformer 6 again, then the fastening bolt 404 on the fixing rod 403 is loosened, the special tool for replacing the 10kV middle-mounted switch cabinet current transformer 6 is moved out, and then the replacement work of the current transformer 6 can be completed.
In conclusion, the technical problems that in the conventional replacement mode, an electric power worker needs to manually move the current transformer 6 for disassembly, the labor intensity is high, the operation is inconvenient, and safety accidents are easy to occur are solved through the embodiment of the invention.
It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should also be understood that various alterations, modifications and/or variations can be made to the present invention by those skilled in the art after reading the technical content of the present invention, and all such equivalents fall within the protective scope defined by the claims of the present application.
Claims (8)
1.10kV central-positioned cubical switchboard current transformer changes specialized tool, its characterized in that: the current transformer fixing device comprises a base, wherein a lifting mechanism is fixedly arranged on the base, a first supporting column is fixedly arranged on the lifting mechanism, a fastening mechanism for dismounting and mounting a current transformer is rotatably arranged on the first supporting column, and a supporting rod for supporting the fastening mechanism is connected between the fastening mechanism and the first supporting column;
the fastening mechanism comprises a second supporting column, a rotating shaft is fixedly installed at one end, connected with the first supporting column, of the second supporting column, the rotating shaft is rotatably installed with the first supporting column, two fixing rods used for being fixedly connected with the current transformer are fixedly installed on the second supporting column, and a plurality of fastening bolts matched with threaded holes of the current transformer are arranged on the two fixing rods;
the sliding device is characterized in that a sliding block is arranged on the second supporting column in a sliding mode, one end of the sliding block is fixedly connected with a pushing mechanism used for pushing the sliding block to slide, the pushing mechanism is fixedly installed on the second supporting column, the sliding block is connected with one end of the supporting rod in a hinged mode, the other end of the supporting rod is connected with a fixing base in a hinged mode, and the fixing base is fixedly installed on the first supporting column.
2. The special tool for replacing the 10kV middle-mounted switch cabinet current transformer as claimed in claim 1, wherein: and the bottom of the base is provided with a position avoiding groove for avoiding a bottom frame of the switch cabinet.
3. The special tool for replacing the 10kV middle-mounted switch cabinet current transformer as claimed in claim 1, wherein: the lifting mechanism adopts a pedal hydraulic pump, a cylinder body of the pedal hydraulic pump is fixedly arranged on the base, and a piston rod of the pedal hydraulic pump is fixedly connected with the first supporting column.
4. The special tool for replacing the 10kV middle-mounted switch cabinet current transformer as claimed in claim 1, wherein: one end of the rotating shaft extends out of the first supporting column to form an extending end, and a hand wheel is fixedly mounted on the extending end.
5. The special tool for replacing the 10kV middle-mounted switch cabinet current transformer as claimed in claim 3, wherein: the pushing mechanism adopts an electric hydraulic push rod, a piston rod of the electric hydraulic push rod is fixedly connected with the sliding block, a cylinder body of the electric hydraulic push rod is fixedly installed on the second supporting column, the cylinder body of the electric hydraulic push rod is connected with a control switch through a lead, and the control switch is detachably installed on the surface of the cylinder body of the pedal hydraulic pump through a clamping groove.
6. The special tool for replacing the 10kV middle-mounted switch cabinet current transformer as claimed in claim 1, wherein: the second support column is provided with a T-shaped sliding groove, the sliding block is also of a T-shaped structure, and the sliding block is matched with the T-shaped sliding groove and is slidably mounted in the T-shaped sliding groove.
7. The special tool for replacing the 10kV middle-mounted switch cabinet current transformer as claimed in claim 1, wherein: the end that first support column with the second support column is connected is equipped with the baffle that is used for restricting second support column turned angle, the baffle with the dead lever is located same one side.
8. The special tool for replacing the 10kV middle-mounted switch cabinet current transformer as claimed in claim 5, wherein: the base is fixedly provided with a storage battery, and the storage battery is connected with the control switch through a lead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811277552.1A CN109244912B (en) | 2018-10-30 | 2018-10-30 | Special tool for replacing current transformer of 10kV middle-mounted switch cabinet |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811277552.1A CN109244912B (en) | 2018-10-30 | 2018-10-30 | Special tool for replacing current transformer of 10kV middle-mounted switch cabinet |
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| CN109244912A CN109244912A (en) | 2019-01-18 |
| CN109244912B true CN109244912B (en) | 2020-04-17 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110293508A (en) * | 2019-08-02 | 2019-10-01 | 广东电网有限责任公司 | A kind of switch cabinet current transformer more changing device |
| CN113030838B (en) * | 2021-03-25 | 2024-02-02 | 河南省计量科学研究院 | Electric energy meter calibrating device for on-line on-load calibration |
| CN113794141A (en) * | 2021-09-30 | 2021-12-14 | 海南电网有限责任公司海南输变电检修分公司 | Tool for overhauling 10kV switch cabinet current transformer |
| CN115483636A (en) * | 2022-10-08 | 2022-12-16 | 国网山东省电力公司淄博供电公司 | Special tool for replacing current transformer in switch cabinet |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US7271996B2 (en) * | 2004-12-03 | 2007-09-18 | Electro Industries/Gauge Tech | Current inputs interface for an electrical device |
| CN102969663A (en) * | 2012-11-22 | 2013-03-13 | 江苏省电力公司盱眙县供电公司 | Tool for replacing 10KV-20KV current transformer |
| CN103746307B (en) * | 2014-01-26 | 2016-06-15 | 国家电网公司 | Hydraulic pressure push-in type current transformer more changing device |
| CN104134944A (en) * | 2014-08-15 | 2014-11-05 | 国家电网公司 | Fast CT replacing device for 10kV switch cabinet |
| CN104158102A (en) * | 2014-09-02 | 2014-11-19 | 国家电网公司 | Special tool for assisting in replacement of CT in 10kV switch cabinet and using method thereof |
| CN206041287U (en) * | 2016-08-31 | 2017-03-22 | 代文章 | Novel cubical switchboard current transformer changes platform |
| CN207947534U (en) * | 2017-12-15 | 2018-10-09 | 广西电网有限责任公司桂林供电局 | A kind of rotary electric current transformer replacement support device |
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