CN114498438A - Bypass drainage operation device and operation method for replacing on-column switch through bypass drainage - Google Patents
Bypass drainage operation device and operation method for replacing on-column switch through bypass drainage Download PDFInfo
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- CN114498438A CN114498438A CN202111665884.9A CN202111665884A CN114498438A CN 114498438 A CN114498438 A CN 114498438A CN 202111665884 A CN202111665884 A CN 202111665884A CN 114498438 A CN114498438 A CN 114498438A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/02—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
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Abstract
The invention relates to the technical field of bypass drainage, in particular to a bypass drainage operation device and an operation method for replacing a switch on a column by bypass drainage, wherein the bypass drainage operation device comprises a drop-out fuse and a drainage wire, and the drop-out fuse is provided with a wire connector and an installation head; the drainage wire is provided with a fuse connecting end and a circuit connecting end; during operation, the drop-out fuse and the drainage wire form a drainage bypass, the switch of the drop-out fuse is closed, the drainage bypass is conducted, the pole-mounted switch of the maintenance line is disconnected and then detached, the intelligent switch is mounted on the maintenance line, live replacement of the pole-mounted switch is achieved, and the drainage bypass is detached at last. Through this bypass drainage operation device setting, can will effectively avoid the drainage wire to connect when overhauing the circuit, the drainage bypass produces electric arc and overflows, provides the guarantee for intelligent switch's installation.
Description
Technical Field
The invention relates to the technical field of bypass drainage, in particular to a bypass drainage operation device and an operation method for replacing a switch on a column by bypass drainage.
Background
10kV overhead line intelligence switch is the important equipment of realizing distribution network automation, and in order to improve intelligent power distribution network's degree of automation, the guarantee circuit does not have a power failure simultaneously, and live working installation intelligence switch or with the electrified main stream mode of reforming transform of old switch (post switch) for intelligence switch is current distribution automation. The removal of the old switch is generally accomplished by means of a loaded bypass operation, and the old switch is replaced with a newly installed intelligent switch (hereinafter, the line for replacing the old switch and the intelligent switch is also referred to as a service line). The main working principle is that a bypass system is firstly established through a bypass operation method, then an old switch is dismantled, and finally an intelligent switch is installed and the bypass system is dismantled. Depending on the field device conditions and whether a bypass switch is used, the method of operation may differ.
The first operation method is an operation method for performing bypass drainage by using an intelligent switch to be installed, wherein the intelligent switch is installed on a tower through live-line operation under the condition that the space of the tower of an overhead line allows, and leads on two sides of the intelligent switch are lapped on an overhaul line; checking the phases of the two sides of the intelligent switch, closing the intelligent switch gate, enabling the bypass system to be electrified and operated, pulling open the old switch on the maintenance circuit, removing leads on the two sides of the old switch through live working, removing equipment such as the old switch on the rod and the like simultaneously, and installing the intelligent switch of the maintenance circuit. The second operation method is an operation method for establishing bypass drainage through a bypass breaker, firstly, connecting drainage wires to two sides of the bypass breaker, establishing a bypass system, and then overlapping the cable drainage wires to an overhaul line; checking the phases at the two sides of the bypass switch, and closing to enable the bypass system to be electrified and operated; pulling the old switch open, removing the leads on the two sides of the old switch through live working, and removing the old switch on the rod and other equipment at the same time; then lapping leads on two sides of the intelligent switch, installing the intelligent switch, and switching on the intelligent switch to operate; and finally, the bypass system is dismantled, and the installation of the intelligent switch of the maintenance line can be completed.
Although the two methods for replacing the old switch are widely applied in each unit, the two operation methods still have certain limitations, the first operation method for establishing the bypass by using the intelligent switch can realize direct load transfer by establishing a bypass system by using the intelligent switch, and simplifies the operation process, but when the old switch is replaced with power, because the old column switch is not detached, if the current of the drainage wire is not switched on and off by using the switch, the drainage wire is directly installed, the possibility of electric arc and overcurrent is generated, and finally the new intelligent switch cannot be installed. In the second operation method for establishing bypass drainage by using the bypass breaker, as the longer drainage wire and the larger bypass breaker are required to be arranged in order to meet the requirements of different scenes, great energy is required to be consumed when an operator arranges the bypass drainage wire and the bypass breaker on site, and the operation method is not friendly to the use requirements of small scenes such as replacing old switches with power.
Disclosure of Invention
The invention aims to overcome the technical defects, provides a bypass drainage operation device and an operation method for replacing a pole switch by bypass drainage, and solves the technical problem that the operation method for replacing the pole switch with electricity in the prior art is difficult to realize simple and stable installation of an intelligent switch.
In order to achieve the above technical object, a technical solution of the present invention provides a bypass drainage operation device, including:
the device comprises a drop-out fuse, a connecting terminal and an isolating switch, wherein the drop-out fuse is provided with a lead connector, an installing head and the isolating switch, the installing head is used for installing the drop-out fuse on an overhaul line, and the isolating switch is used for controlling the on-off of the drop-out fuse;
the drainage wire, the drainage wire has fuse link and circuit connection end, the fuse link connect in on the wire joint, the circuit connection end supplies the drainage wire is connected and is overhauld the circuit.
Optionally, the drainage wire fixing device further comprises a limiting assembly, the limiting assembly comprises a limiting frame and a fixing unit, the limiting frame is located on one side of the drainage wire, and the fixing unit is used for fixing the drainage wire on the limiting frame along the extending direction of the limiting frame so as to shape the drainage wire.
Optionally, the limiting frame comprises a first fixing rod and two second fixing rods which are perpendicularly fixed at two ends of the first fixing rod, the fuse connecting end and the line connecting end are respectively fixed on the two second fixing rods, and the middle part of the drainage wire is fixed on the first fixing rod.
Optionally, the first fixing rod and the two second fixing rods are detachably connected.
Optionally, the fixing unit includes a plurality of quick-locking clamps, each quick-locking clamp is provided with a first clamping space and a second clamping space that can be opened and closed, the drainage wire is limited in the first clamping space, and the limiting frame is limited in the second clamping space.
Optionally, spacing subassembly includes the stores pylon, the stores pylon is provided with stiff end and hangs the end, the stiff end is fixed in on the spacing, hang the end confession the stores pylon hangs in the maintenance circuit.
Optionally, the fixed end is provided with a fixed sleeve, and the fixed sleeve is sleeved on the surface of the limiting frame and hinged to the hanging frame.
Optionally, the hanging end is provided with a hook, the hook is hinged to the hanging rack, and a hanging hole for the hanging tool to penetrate is formed in the surface of the hook.
Compared with the prior art, the bypass drainage operation device provided by the invention has the beneficial effects that:
the drop-out fuse is provided with a lead connector and an installation head by arranging the drop-out fuse and the drainage wire; the drainage wire is provided with a fuse connecting end and a circuit connecting end; when the intelligent switch is used for replacing and repairing a pole-mounted switch of a circuit, firstly, an installing head of a drop-out fuse with a disconnected switch is installed on one side of the pole-mounted switch of the maintenance circuit, then, a fuse connecting end of a drainage wire is connected to a lead connector of the drop-out fuse, and a circuit connecting end of the drainage wire is connected to the other side of the pole-mounted switch of the maintenance circuit, so that the drop-out fuse and the drainage wire form a drainage bypass, then, the switch of the drop-out fuse is closed, the drainage bypass is conducted, the pole-mounted switch of the maintenance circuit is disconnected and then detached, finally, the intelligent switch is installed on the maintenance circuit, live replacement of the pole-mounted switch is realized, and finally, the drainage bypass is detached. Through this bypass drainage operation device setting, isolator's disconnection protection when installing through drop out fuse can be with effectively avoiding the drainage wire to connect when overhauing the circuit, and the drainage bypass produces electric arc and overflows, provides the guarantee for intelligence switch's installation, and drop out fuse's volume is less, only needs to adopt dedicated mounting tool can realize drop out fuse in the installation on overhauing the circuit, provides convenience for operation personnel's operation.
In order to achieve the technical purpose, the technical scheme of the invention provides an operation method for replacing a pole switch by bypass drainage, which comprises the following steps:
s100: mounting the mounting head of the drop-out fuse on one side of a pole switch of an overhaul line;
s200: connecting the fuse connecting end of a drainage wire to the lead connector of the drop-out fuse, and connecting the line connecting end of the drainage wire to the other side of the pole switch of the maintenance line;
s300: closing the isolating switch of the drop-out fuse;
s400: disconnecting and removing the column switch of the maintenance line;
s500: and installing an intelligent switch on the maintenance line.
Optionally, before step S200, the drainage wire is fixed on the limiting frame provided with the hanger along the extending direction of the limiting frame through the fixing unit, and then the hanger is hung on the maintenance line through the hanging end.
Compared with the prior art, the operation method for replacing the on-column switch by the bypass drainage has the beneficial effects that:
disconnection protection of the disconnecting switch during installation of the drop-out fuse can effectively avoid the drainage wire to be connected in the maintenance line, the drainage bypass generates electric arc and overflows, guarantee is provided for installation of the intelligent switch, the volume of the drop-out fuse is small, installation of the drop-out fuse on the maintenance line can be achieved only by adopting a special installation tool, and convenience is provided for operation of operators.
Drawings
Fig. 1 is a schematic structural diagram of a bypass drainage operation device according to an embodiment of the present invention.
Fig. 2 is a partially enlarged view of a portion a in fig. 1.
Fig. 3 is a schematic structural diagram of a bypass drainage operation device according to another embodiment of the present invention.
Fig. 4 is a partially enlarged view of a portion a in fig. 3.
Fig. 5 is a schematic structural diagram of a quick locking clip of a bypass drainage operation device according to an embodiment of the present invention.
Fig. 6 is a flowchart of an operation method for replacing the pole top switch by bypassing the flow.
Wherein, in the figures, the respective reference numerals:
10-drop-out fuse 11-lead joint 12-mounting head
13-disconnecting switch 20-drainage wire 21-fuse connection
22-line connection 23-suspension head 30-limiting assembly
40-limiting frame 41-first fixing rod 42-second fixing rod
43-folded tube 44-third fixing rod 45-fourth fixing rod
50-fixed unit 51-quick locking clamp 52-limiting clamp
60-hanging rack 61-fixed end 62-hanging end
63-fixing sleeve 64-hook 111-hanging column
231-hanging groove 511-first clamping space 512-second clamping space
513 connecting block 514 locking frame 515 locking block
516-hinge member 517-limiting member 521-lock sleeve limiting clamp
522-screw 523-lock cavity 5131-first clamping groove
5132-second clamping groove 5151-sliding rod 5152-limiting nut
5161, fixing part 5162, limiting part 10a and maintenance line
20 a-link mounting tool 21 a-holding rod 22 a-clamping head
30 a-quincunx head operating rod.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The invention provides a bypass drainage operation device and an operation method for replacing a switch on a column by bypass drainage.
Example 1:
embodiment 1 of the present invention provides a bypass drainage operation device, including:
the fuse protector comprises a drop-out fuse 10 and a drainage wire 20, wherein the drop-out fuse 10 is provided with a wire connector 11, an installation head 12 and an isolating switch 13; the mounting head 12 is used for mounting the drop-out fuse 10 on the maintenance line 10a, and the isolating switch 13 is used for controlling the on-off of the drop-out fuse 10;
the drain wire 20 has a fuse connection 21 end and a line connection 22 end, the fuse connection 21 end being connected to the wire connector 11, and the line connection 22 end for connection of the drain wire 20 to the service line 10 a.
Specifically, by providing the drop-out fuse 10 and the drainage wire 20, the drop-out fuse 10 is provided with a wire joint 11 and an installation head 12; the current lead 20 has a fuse connection 21 end and a line connection 22 end; when the intelligent switch is used for replacing and repairing the pole-mounted switch of the circuit, firstly, the mounting head 12 of the drop-out fuse 10 with the disconnected switch is mounted on one side of the pole-mounted switch of the maintenance circuit 10a, then the fuse connection 21 end of the drainage wire 20 is connected to the lead connector 11 of the drop-out fuse 10, and the line connection 22 end of the drainage wire 20 is connected to the other side of the pole-mounted switch of the maintenance circuit 10a, so that the drop-out fuse 10 and the drainage wire 20 form a drainage bypass, then the switch of the drop-out fuse is closed, the drainage bypass is conducted, then the pole-mounted switch of the maintenance circuit 10a is disconnected and then detached, finally, the intelligent switch is mounted on the maintenance circuit 10a, the live replacement of the pole-mounted switch is realized, and finally the drainage bypass is detached. Through this bypass drainage operation device setting, isolator 13's when installing through drop out fuse 10 disconnection protection, can will effectively avoid the drainage wire 20 to connect when overhauing circuit 10a, the drainage bypass produces electric arc and overflows, provides the guarantee for intelligence switch's installation, and drop out fuse 10's volume is less, only needs to adopt dedicated mounting tool can realize the installation of drop out fuse 10 on overhauing circuit 10a, provides convenience for operation personnel's operation.
In this embodiment, the mounting head 12 of the drop-out fuse 10 is sleeved on the surface of the service line 10a to realize the electrical connection with the service line 10 a.
In this embodiment, the drainage wire 20 is also called a drainage wire 20, an insulated jumper wire, and an insulated bypass jumper wire group. The device is mainly suitable for uninterrupted operation, and reduces the construction cost of power failure.
In this embodiment, both the fuse connection 21 end and the line connection 22 end of the drainage wire 20 are provided with the suspension head 23, the side surface of the suspension head 23 is provided with the suspension groove 231, the wire connector of the drop-out fuse 10 is provided with the suspension post 111, the fuse connection 21 end is suspended on the suspension post 111 through the suspension groove 231 of the suspension head 23 to realize the electrical connection with the drop-out fuse 10, and the line connection 22 end is suspended on the maintenance line 10a through the suspension groove 231 of the suspension head 23 to realize the electrical connection with the maintenance line 10 a.
Optionally, the drainage device further comprises a limiting assembly 30, wherein the limiting assembly 30 comprises a limiting frame 40 and a fixing unit 50, the limiting frame 40 is located on one side of the drainage wire 20, and the fixing unit 50 is used for fixing the drainage wire 20 on the limiting frame 40 along the extending direction of the limiting frame 40 so as to shape the drainage wire 20. Specifically, through the above arrangement, the drainage wire 20 can be shaped through the limiting frame 40 and the fixing unit 50 when the drainage wire 20 is installed, so that convenience is provided for installation of the drainage wire 20, and the problem of inconvenience caused by overlong drainage wire 20 is effectively avoided.
It can be understood that the limiting frame 40 can be any rigid structure such as a frame body, a plate body, a rod piece and the like, which can fix the drainage wire 20.
It can be understood that the fixing unit 50 may be any structure that can fix the drainage wire 20 on the limiting frame 40, such as a soft wire body, a limiting clamp 52, etc., the soft wire body may fix the drainage wire 20 and the limiting frame 40 by binding, and the limiting clamp 52 may clamp the drainage wire 20 and the limiting frame 40 to fix the drainage wire 20 and the limiting frame 40.
Optionally, the limiting frame 40 includes a first fixing rod 41 and two second fixing rods 42 perpendicularly fixed to both ends of the first fixing rod 41, the fuse connection 21 end and the line connection 22 end are respectively fixed to the two second fixing rods 42, and the middle portion of the drainage wire 20 is fixed to the first fixing rod 41.
Specifically, the first fixing rod 41 and the second fixing rod 42 are vertically arranged, so that the limiting frame 40 forms a U-shaped structure, and two ends of the U-shaped limiting frame 40 respectively correspond to the connection positions of the hanging column 111 of the drop-out fuse 10 and the drainage wire 20 of the maintenance line 10a, so that convenience is provided for installation of the drainage wire 20 while fixation is provided for the drainage wire 20.
In this embodiment, in order to facilitate the holding of the limiting frame 40 and the fixing of the drainage wire 20, the first fixing rod 41 and the second fixing rod 42 are both provided as rod members.
Alternatively, the first fixing rod 41 and the two second fixing rods 42 are detachably connected.
Specifically, depending on the working environment, drainage wires 20 of different lengths may be required, and by the detachable connection of the first fixing rod 41 and the second fixing rod 42, only the length of the first fixing rod 41 needs to be changed to accommodate the fixation of drainage wires 20 of different lengths.
It is understood that the first fixing rod 41 and the second fixing rod 42 can be detachably fixed by clamping or sleeving.
In this embodiment, the limiting frame 40 further includes two folding tubes 43, one ends of the two folding tubes 43 are respectively sleeved at two ends of the first fixing rods 41, and the two first fixing rods 41 are respectively inserted at the other ends of the two folding tubes 43. To achieve the detachable connection of the first fixing rod 41 and the second fixing rod 42.
Optionally, the fixing unit 50 includes a plurality of quick-locking clips 51, each quick-locking clip 51 is provided with a first clamping space 511 and a second clamping space 512 which can be opened and closed, the drainage wire 20 is limited in the first clamping space 511, and the limiting frame 40 is limited in the second clamping space 512.
Specifically, the drainage wire 20 and the limiting frame 40 are respectively limited in the first clamping space 511 and the second clamping space 512 of the quick-locking clamp 51, so that the drainage wire 20 is fixed on the limiting frame 40; because the first clamping space and the second clamping space 512 can be opened and closed, convenience can be provided for the installation of the drainage wire 20 and the limiting frame 40 in the first clamping space 511 and the second clamping space 512.
In this embodiment, the quick-locking clamp 51 includes a connection block 513, a lock frame 514, a lock block, a hinge 516 and a limiting member 517, a first clamping groove 5131 and a second clamping groove 5132 are respectively disposed at two ends of the connection block 513, the lock frame 514 is fixed on the connection block 513, the lock block is slidably connected to the lock frame 514 and located on one side of the first clamping groove 5131, a first clamping space 511 is formed by enclosing with the first clamping groove 5131, the hinge 516 is located on one side of the second clamping groove 5132 and is hinged to the connection block 513, the hinge 516 and the second clamping groove 5132 are enclosed to form a second clamping space 512, the limiting member 517 is detachably connected to the connection block 513, and is used for limiting the hinge 516.
Specifically, the first holding space and the second holding space can be opened and closed by the locking block and the locking frame 514 and the sliding connection, and the joint piece and the connecting block 513 are hinged. When the drainage wire 20 is fixed, the limiting part 517 is firstly removed, the limiting part 517 is rotated, the second clamping space 512 is opened, the connecting block 513 is installed on the limiting frame 40 through the second clamping groove 5132, and then the limiting part 517 is rotated, so that the limiting part 517 and the second clamping groove 5132 form a closed second clamping space 512, the limiting of the limiting frame 40 in the second clamping space 512 is realized, the limiting part 517 is installed again, the hinge 516 is limited, and the hinge 516 is prevented from rotating.
The drainage wire 20 is then installed in the first clamping groove 5131, and the locking block slides towards the first clamping groove 5131, so that the locking block and the first clamping groove 5131 form a first clamping space 511, thereby limiting the drainage wire 20, and further fixing the drainage wire 20 on the limiting frame 40.
In this embodiment, the limiting member 517 includes a fixing portion 5161 and a limiting portion 5162 forming an included angle with the fixing portion 5161, the fixing portion 5161 penetrates the limiting member 517, and is detachably fixed to the connecting block 513, the limiting portion 5162 is located on one side of the hinge member 516, so as to limit the limiting member 517, and meanwhile, the limiting portion 5162 can facilitate the holding of the limiting member 517, thereby providing convenience for the detachment of the limiting member 517.
In this embodiment, a sliding rod 5151 is fixed on one side of the lock block away from the first clamping groove 5131, the sliding rod 5151 penetrates through the lock frame 514 and is slidably connected with the lock frame 514, a limit nut 5152 is sleeved on the sliding rod 5151, the limit nut 5152 is located on one side of the lock frame 514 away from the lock block and is slidably connected with the sliding rod 5151, and when the first clamping space 511 clamps the drainage wire 20, the limit nut 5152 abuts against the lock frame 514.
Specifically, through the above arrangement, after the drainage wire 20 is placed in the first clamping groove 5131, the locking block slides towards the first clamping groove 5131 to form a closed first clamping space 511 with the first clamping groove 5131, the drainage wire 20 is tightly pressed in the first clamping space 511 by the locking block, the limit nut 5152 is screwed to make the limit nut 5152 abut against the locking frame 514, the locking of the locking block is realized, and finally the locking of the drainage wire 20 in the first clamping space 511 is realized.
In another embodiment of the present invention, the position-limiting frame 40 comprises a third fixing rod 44 and a fourth fixing rod 45 detachably fixed to the third fixing rod 44, the line connection 22 end of the drainage wire 20 is fixed to the fourth fixing rod 45, and the fourth fixing rod 45 is fixed to the service line 10a through a quick-lock clamp 51. The fixing unit 50 comprises a plurality of locking clamps and a quick locking clamp 51, each locking clamp comprises a lock sleeve 521 and a screw 522, a lock cavity 523 which can be opened and closed is arranged in each lock sleeve 521, the drainage wire 20 is fixed in the lock cavity 523, the screw 522 penetrates through the third fixing rod 44 and is in threaded connection with the locking block, and when the drainage wire 20 is fixed in the lock cavity 523, the screw 522 is only required to be screwed down, so that the fixation of the locking clamp on the drainage wire 20 and the third fixing rod 44 can be realized. The third fixing rod 44 and the fourth connecting rod are detachably connected through a folding pipe 43.
Optionally, the position limiting assembly 30 includes a hanging rack 60, the hanging rack 60 is provided with a fixed end 61 and a hanging end 62, the fixed end 61 is fixed on the position limiting rack 40, and the hanging end 62 is used for hanging the hanging rack 60 on the maintenance line 10 a. Specifically, after the drainage wire 20 is fixed to the limiting frame 40, the limiting frame 40 fixed with the drainage wire 20 is hung on the maintenance line 10a through the hanging end 62 of the hanging frame 60, so that convenience is provided for connection of the drainage wire 20 to the drop-out fuse 10 and the maintenance line 10a, the whole stress of the drainage wire 20 can be uniform, and the stability of the drainage wire 20 fixed to the drop-out fuse 10 and the maintenance line 10a is improved.
Optionally, the fixing end 61 is provided with a fixing sleeve 63, and the fixing sleeve 63 is sleeved on the surface of the limiting frame 40 and hinged with the hanging frame 60. In particular, the hinging of the pylon 60 with the fixing sleeve 63 facilitates the suspension of the pylon 60 from the service line 10 a.
Optionally, the hanging end 62 is provided with a hook 64, the hook 64 is hinged to the hanging rack 60, and a hanging hole for the hanging tool to pass through is formed in the surface of the hook 64. Specifically, the hook 64 can be hung on the maintenance line 10a conveniently through the hinge connection of the hook 64 and the hanging rack 60, and the hanging hole on the surface of the hook 64 facilitates the penetration of a hanging tool, so that the hook 64 can be hung conveniently.
Example 2:
the embodiment 2 of the invention provides an operation method for replacing a switch on a column by bypass drainage, which comprises the following steps:
s100: mounting the mounting head 12 of the drop-out fuse 10 on one side of the on-post switch of the service line 10 a;
s200: connecting the fuse connection 21 end of the drainage wire 20 to the lead connector 11 of the drop-out fuse 10, and connecting the line connection 22 end of the drainage wire 20 to the other side of the pole switch of the maintenance line 10 a;
s300: closing the disconnecting switch 13 of the drop-out fuse;
s400: disconnecting and removing the column switch of the maintenance line 10 a;
s500: the intelligent switch is installed to the service line 10 a.
In this embodiment, in step S100, in order to facilitate the installation of the drop-out fuse 10 on the service line 10a, the drop-out fuse 10 is installed by using a dedicated token installation tool 20 a. The fuse holder 20a includes a grip 21a and a holding head 22a, the drop out fuse 10 is held by the holding head 22a, and the drop out fuse 10 is mounted on the service line 10a by operating the grip 21 a.
In this embodiment, before step S200, the switch for disconnecting the dropout fuse should be in an off state.
In this embodiment, in step S300, the isolating switch 13 of the insulation type fuse is closed by a brake bar (insulating operating rod), and the brake bar (insulating operating rod) is refined by a high-quality epoxy glass steel tube which has excellent insulating property and mechanical strength, is light in weight, and is subjected to moisture-proof treatment.
Specifically, through the disconnection protection of isolator 13 when drop out fuse 10 installs, can will effectively avoid the drainage wire 20 to connect in overhauing circuit 10a, the drainage bypass produces electric arc and overflows, provides the guarantee for intelligent switch's installation, and drop out fuse 10's volume is less, only needs to adopt dedicated mounting tool can realize drop out fuse 10 in the installation on overhauing circuit 10a, provides convenience for operation personnel's operation.
Alternatively, before the step S200, the drainage wire 20 is fixed to the stopper 40 provided with the hanger 60 by the fixing unit 50 in the extending direction of the stopper 40, and then the hanger 60 is hung on the service line 10a by the hanging end 62. Specifically, the drainage wire 20 is fixed on the limiting frame 40, and the limiting frame 40 is hung on the maintenance line 10a, so that convenience can be provided for installation of the drainage wire 20 on the drop-out fuse 10 and the maintenance line 10a, the whole stress of the drainage wire 20 can be uniform, and stability is provided for connection of the drainage wire 20 with the drop-out fuse 10 and the maintenance line 10 a.
In this embodiment, since the operation process is overhead operation, the drainage wire 20 is fixed on the position-limiting frame 40 in advance through the fixing unit 50 in this embodiment before step S100.
In this embodiment, the hanger 60 is suspended from the service line 10a by the suspending end 62 via the quincunx head lever 30 a.
In another embodiment of the present invention, before step S200, the second fixing rod 42 for fixing the end of the line connection 22 to the limiting frame 40 is fixed to the service line 10 a.
The above-described embodiments of the present invention should not be construed as limiting the scope of the present invention. Any other corresponding changes and modifications made according to the technical idea of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. A bypass drainage operation device, comprising:
the device comprises a drop-out fuse, a connecting terminal and an isolating switch, wherein the drop-out fuse is provided with a lead connector, an installing head and the isolating switch, the installing head is used for installing the drop-out fuse on an overhaul line, and the isolating switch is used for controlling the on-off of the drop-out fuse;
the drainage wire, the drainage wire has fuse link and circuit connection end, the fuse link connect in on the wire joint, the circuit connection end supplies the drainage wire is connected and is overhauld the circuit.
2. The bypass drainage operation device according to claim 1, further comprising a limiting assembly, wherein the limiting assembly comprises a limiting frame and a fixing unit, the limiting frame is located on one side of the drainage wire, and the fixing unit is used for fixing the drainage wire on the limiting frame along the extending direction of the limiting frame so as to shape the drainage wire.
3. The bypass drainage operation device according to claim 2, wherein the limiting frame comprises a first fixing rod and two second fixing rods perpendicularly fixed to two ends of the first fixing rod, the fuse connecting end and the line connecting end are respectively fixed to the two second fixing rods, and a middle portion of the drainage wire is fixed to the first fixing rod.
4. The bypass drainage task device of claim 3, wherein the first securing rod and the two second securing rods are removably connected.
5. The bypass drainage operation device according to claim 2, wherein the fixing unit comprises a plurality of quick-locking clamps, each quick-locking clamp is provided with a first clamping space and a second clamping space which can be opened and closed, the drainage wire is limited in the first clamping space, and the limiting frame is limited in the second clamping space.
6. The bypass drainage operation device according to claim 2, wherein the limiting assembly comprises a hanging rack, the hanging rack is provided with a fixed end and a hanging end, the fixed end is fixed on the limiting rack, and the hanging end is used for hanging the hanging rack on an inspection line.
7. The bypass drainage operation device according to claim 6, wherein the fixed end is provided with a fixed sleeve, and the fixed sleeve is sleeved on the surface of the limiting frame and hinged with the hanging frame.
8. The bypass drainage operation device according to claim 6, wherein the hanging end is provided with a hook, the hook is hinged to the hanging frame, and a hanging hole for a hanging tool to pass through is formed in the surface of the hook.
9. The operation method for replacing the column switch by bypass drainage is characterized by comprising the following steps of:
s100: mounting the mounting head of the drop-out fuse on one side of a pole switch of an overhaul line;
s200: connecting the fuse connecting end of a drainage wire to the lead connector of the drop-out fuse, and connecting the line connecting end of the drainage wire to the other side of the pole switch of the maintenance line;
s300: closing the isolating switch of the drop-out fuse;
s400: disconnecting and removing the column switch of the maintenance line;
s500: and installing an intelligent switch on the maintenance line.
10. The method of claim 9, wherein before step S200 and before step S200, the drainage wire is fixed to the position-limiting frame provided with the hanging frame by a fixing unit along the extending direction of the position-limiting frame, and then the hanging frame is hung on the maintenance line by a hanging end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111665884.9A CN114498438A (en) | 2021-12-30 | 2021-12-30 | Bypass drainage operation device and operation method for replacing on-column switch through bypass drainage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111665884.9A CN114498438A (en) | 2021-12-30 | 2021-12-30 | Bypass drainage operation device and operation method for replacing on-column switch through bypass drainage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114498438A true CN114498438A (en) | 2022-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111665884.9A Pending CN114498438A (en) | 2021-12-30 | 2021-12-30 | Bypass drainage operation device and operation method for replacing on-column switch through bypass drainage |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115296201A (en) * | 2022-07-11 | 2022-11-04 | 浙江大有实业有限公司带电作业分公司 | Fuse overhaul method using bypass system to operate correctness check |
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2021
- 2021-12-30 CN CN202111665884.9A patent/CN114498438A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115296201A (en) * | 2022-07-11 | 2022-11-04 | 浙江大有实业有限公司带电作业分公司 | Fuse overhaul method using bypass system to operate correctness check |
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