CN219779766U - Protection device convenient for uninterrupted operation - Google Patents
Protection device convenient for uninterrupted operation Download PDFInfo
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- CN219779766U CN219779766U CN202320889464.7U CN202320889464U CN219779766U CN 219779766 U CN219779766 U CN 219779766U CN 202320889464 U CN202320889464 U CN 202320889464U CN 219779766 U CN219779766 U CN 219779766U
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- 230000001681 protective effect Effects 0.000 claims abstract description 10
- 125000006850 spacer group Chemical group 0.000 claims abstract description 7
- 238000007599 discharging Methods 0.000 claims abstract description 6
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 32
- 230000003068 static effect Effects 0.000 claims description 27
- 239000012212 insulator Substances 0.000 claims description 16
- 239000011787 zinc oxide Substances 0.000 claims description 16
- 238000009413 insulation Methods 0.000 claims description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 238000007689 inspection Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000002955 isolation Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000000306 component Substances 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model relates to a protection device for facilitating uninterrupted operation, which comprises a protection device access seat and an overvoltage protection device; the protective device access seat comprises an upper cross rod, an upper fixed contact, a lower cross rod and a lower fixed contact; the overvoltage protection device comprises an upper moving contact, a discharge assembly, a lightning arrester, a separator and a lower moving contact; the upper moving contact and the upper fixed contact are connected in a clamping manner; the discharging assembly is arranged on the upper part of the lightning arrester, the separator is arranged on the lower part of the lightning arrester, an insulating spacer is arranged between the lightning arrester and the separator, the outer end of the insulating spacer is connected with the lower moving contact, and the lower end of the separator is connected with the lower moving contact through a guide wire; the lower part of the lower moving contact is connected to the lower part of the lower fixed contact in a rotatable mode, the lower moving contact is elastically contacted with the lower fixed contact when the lower moving contact rotates upwards, and the lower moving contact is separated from the lower fixed contact when the lower moving contact rotates reversely. The device has a highly integrated structure, has a self-withdrawing function and is simple to install.
Description
Technical Field
The utility model relates to the field of power equipment, in particular to a protection device convenient for uninterrupted operation.
Background
In an outdoor overhead power system, in order to eliminate the damage of induced lightning overvoltage to a power line, a zinc oxide arrester with a series gap is generally used, and the lightning overvoltage is eliminated in a dredging manner, so that the purpose of overvoltage protection is achieved. The following problems mainly exist in use:
1. after the series gap lightning arrester is connected into a power system, the lightning arrester can not be judged on line, if the lightning arrester is damaged, the positioning difficulty is high, the lightning arrester needs to be detached and detected one by one, and in order to reduce the accident rate, the lightning arrester can only be detached and detected one by one at regular intervals, so that a large amount of manpower and material resources are consumed.
2. Line power failure is needed for dismounting and mounting the lightning arrester caused by detection, and more power users are affected.
3. The arrester with the series gap is installed, and the installation position of the arrester is required to be independently set, for example, the cross arm is not reasonably arranged externally, and a special cross arm is required to be additionally arranged.
4. The series gap lightning arrester is connected with the power system by adding a lead wire and a main lead wire independently, and has a certain extra workload.
The overvoltage and overcurrent protection device disclosed in the patent publication No. CN216774270U is characterized in that one end of a lightning arrester, which is far away from a mounting frame, is connected with a drop-out fuse, and one end of the drop-out fuse, which is far away from the lightning arrester, is connected with one end of an insulator, which is far away from the mounting frame; the lightning arrester comprises a core body and an arc striking rigid foot arranged at the end part of the lightning arrester, wherein the core body is connected with an arc striking rod, one end of the arc striking rod, which is far away from the core body, is provided with an arc striking ball, and the arc striking steel foot is provided with a steel foot ball. The lightning arrester plays a first protection role, and the arc striking ball and the steel foot ball play a second protection role, so that even if the lightning arrester breaks down, the lightning arrester can play a role in protecting various electrical equipment in a power system. However, the structure is complex, the installation of the fuse is troublesome, the installation and maintenance operations are inconvenient, and the implementation is not easy; and there is no self-exit function.
Disclosure of Invention
The utility model provides a protection device which has a highly integrated structure, has a self-withdrawing function, is simple to install and operate and convenient to use, and is convenient for uninterrupted operation.
In order to achieve the above purpose, the technical scheme of the utility model is as follows: the protection device is characterized by comprising a protection device access seat and an overvoltage protection device;
the protective device access seat comprises an upper access part connected to the upper part of the column insulator and a lower access part arranged at the lower part of the insulator, wherein the upper access part comprises an upper cross rod and an upper fixed contact with an upper fixed contact arranged at the end part of the upper cross rod, and the lower access part comprises a lower cross rod and a lower fixed contact with a lower fixed contact arranged at the end part of the lower cross rod;
the overvoltage protection device comprises an upper moving contact with an upper moving contact, a discharge assembly, a lightning arrester, a disconnector and a lower moving contact with a lower moving contact; the upper moving contact is connected with the upper fixed contact in a clamping manner, and in a clamping state, the upper moving contact is contacted with the upper fixed contact; the discharging assembly is arranged on the upper part of the lightning arrester, the separator is arranged on the lower part of the lightning arrester, an insulating separator which is inclined downwards is arranged between the lightning arrester and the separator, the outer end of the insulating separator is connected with the lower moving contact, and the lower end of the separator is electrically connected with the lower moving contact through a current conducting wire; the lower part of the lower moving contact is connected to the lower part of the lower fixed contact in a rotatable mode, when the lower moving contact rotates upwards, the lower moving contact arranged on the outer side of the upper part of the lower moving contact is in elastic contact with the lower fixed contact, and when the lower moving contact rotates reversely, the lower moving contact is separated from the lower fixed contact.
Furthermore, a clamping piece with a concave middle part is arranged below the upper fixed contact, one end of the clamping piece is connected with the lower fixed contact, the other end of the clamping piece is a free end extending out of the lower fixed contact, and a convex part arched upwards is arranged at the concave part of the clamping piece, namely the upper fixed contact; an elastic piece is arranged between the convex part and the upper fixed contact above; when the upper moving contact is clamped to the clamping piece, the upper moving contact is clamped and contacted with the upper static contact.
Further, an operation ring is arranged on the outer side of the upper moving contact.
Further, a lower static contact sheet and a hook component are arranged below the lower static contact, the hook component is of a plate-shaped structure extending downwards from two sides of the lower static contact, a hook body with an upward hook opening is arranged on the lower side of the plate-shaped structure, the lower static contact sheet is arranged at the bottom of the lower static contact between the two plate-shaped structures, and one end of the lower static contact sheet is connected with a V-shaped elastic sheet of the lower static contact; the lower part of the lower moving contact is connected to the hook opening of the hook body through a rotating shaft, the lower moving contact is contacted with the outer side of the lower static contact sheet when the lower moving contact rotates upwards, and the lower moving contact is separated from the lower static contact sheet when the lower moving contact rotates reversely.
Furthermore, the lower movable contact point of the lower movable contact is an inclined plane matched with the outer side edge of the V-shaped elastic sheet.
Further, the outer end of the insulating spacer is connected with the lower moving contact through a rotating shaft.
Further, the current-guiding wire is a soft copper braided wire.
Further, the discharge assembly comprises an upper arc striking ball piece, an insulating column and a lower arc striking ball piece, wherein the insulating distance of the insulating column is greater than the discharge gap distance formed between the upper arc striking ball and the lower arc striking ball.
Further, the lightning arrester is internally provided with a zinc oxide resistor disc.
Still further, the recess of placing the wire is formed through setting up the line ball lid on column insulator upper portion, line ball lid top is fixed through the line ball bolt.
The technical scheme of the utility model has the following beneficial effects: the device has the over-voltage protection function, the arrester with the series gap and the column insulator are highly integrated into a whole, when lightning induced over-voltage exists in a circuit, the zinc oxide resistor chip acts to be conducted, the over-voltage is eliminated in a dredging mode, after the over-voltage is eliminated, the zinc oxide resistor chip is recovered to be high in resistance value to be cut off, a drainage channel is closed, and the circuit is recovered to normally run. The discharge gap connected in series with the lightning arrester can prevent line voltage from being applied to the zinc oxide resistor disc during normal operation, so that the resistor disc is prevented from being failed in advance during long-term under-voltage operation, and the effective duration of the whole device can be effectively prolonged. When the resistor sheet is thoroughly broken down, the high resistance cannot be recovered, at the moment, the disengager acts, the overvoltage protection device capable of being thrown and withdrawn turns downwards to separate from the incoming line voltage, at the moment, the device automatically withdraws from the power system, and the self fault cannot be expanded into an integral line fault. When the inspection staff finds that the protection device turns downwards, the protection device can be taken down by using the insulation operation rod, and after a new accessory is replaced, the protection device with the base being well detected can be put into a power grid by using the insulation operation rod again, so that the protection function of the circuit is continuously provided.
In summary, the overvoltage protection device of the utility model has a highly integrated structure of the series gap lightning arrester and the column insulator. The power system may be automatically exited after the overvoltage protection function fails. In the installation and maintenance aspect, the operating rod can be used for electrified taking down and putting in; and the convenient under-rod patrol and fault positioning are realized.
Drawings
FIG. 1 is a schematic diagram of a protection device in a turned-up state for facilitating uninterrupted operation;
FIG. 2 is a schematic view of a protective device in a turned down condition for facilitating uninterrupted operation;
fig. 3 is a schematic structural view of contact parts of an upper fixed contact and an upper movable contact;
fig. 4 is a schematic structural view of contact portions of the lower stationary contact and the lower movable contact.
Detailed Description
The following examples further illustrate the utility model but are not to be construed as limiting the utility model.
Referring to fig. 1-2, the protection device for facilitating uninterrupted operation disclosed by the utility model can be split into two parts, wherein one part is a protection device access seat and the other part is a retractable overvoltage protection device.
The protection device access seat comprises an upper access part connected to the upper part of the column insulator 18 and a lower access part arranged at the lower part of the insulator, wherein the upper access part comprises an upper cross rod and an upper fixed contact 4 with an upper fixed contact 5 arranged at the end part of the upper cross rod, and the lower access part comprises a lower cross rod and a lower fixed contact 15 with a lower fixed contact 16 arranged at the end part of the lower cross rod.
The overvoltage protection device comprises an upper moving contact 6 with an upper moving contact, a discharging assembly, a lightning arrester 10, a disconnector 12 and a lower moving contact 13 with a lower moving contact; the upper moving contact 6 is connected with the upper fixed contact 4 in a clamping manner, and in a clamping state, the upper moving contact is contacted with the upper fixed contact 5; the discharging assembly is arranged at the upper part of the lightning arrester 10, the separator 12 is arranged at the lower part of the lightning arrester 10, an insulating spacer 11 which is inclined downwards is arranged between the lightning arrester 10 and the separator 12, the outer end of the insulating spacer 11 is connected with the lower moving contact 13, and the lower end of the separator 12 is electrically connected with the lower moving contact 13 through a current conducting wire 14; the lower part of the lower moving contact 13 is rotatably connected to the lower part of the lower fixed contact 15, when the lower moving contact 13 rotates upwards, the lower moving contact arranged on the outer side of the upper part of the lower moving contact 13 is elastically contacted with the lower fixed contact 16, and when the lower moving contact rotates reversely, the lower moving contact is separated from the lower fixed contact 16.
In order to rationalize the above structure, the above device is specifically thinned as follows. As shown in fig. 3, a clamping piece 19 with a concave middle part is arranged below the upper fixed contact 4, one end of the clamping piece 19 is connected to the lower fixed contact 4, the other end is a free end extending out of the lower fixed contact 4, and a convex part 20 arched upwards is arranged at the concave part of the clamping piece 19, namely the upper fixed contact 5; an elastic piece 21 is arranged between the convex part 20 and the upper fixed contact 4 above; when the upper moving contact 6 is clamped to the clamping piece 19, the upper moving contact is clamped and contacted with the upper static contact 5. The upper fixed contact is an access device at the upper part of the protection device, the upper fixed contact in the upper fixed contact is of a spring plate structure and is provided with a spherical convex part, after the protection device is put into operation, the spherical end of the upper moving contact of the protection device is just clamped into a pit of the upper fixed contact, so that the stability of the protection device after the protection device is put into operation is ensured, and the protection device can be well accessed to high voltage of a line. An operating ring 22 is arranged on the outer side of the upper moving contact 6, and an insulating operating rod can be used for hooking the ring for opening and closing operations. The upper moving contact 6 is a high-voltage line inlet point, and the end spherical surface of the head part of the upper moving contact is tightly clamped with the upper static contact groove, so that continuous structural connection and electrical connection are maintained.
A lower static contact piece 23 and a hook member 24 are arranged below the lower static contact 15, as shown in fig. 4, the hook member 24 is of a plate-shaped structure extending downwards from two sides of the lower static contact 15, a hook body 25 with an upward hook opening is arranged on the lower side of the plate-shaped structure, the lower static contact piece 23 is arranged at the bottom of the lower static contact 15 between the two plate-shaped structures, and the lower static contact piece 23 is a V-shaped elastic sheet with one end connected with the lower static contact 15; the lower part of the lower moving contact 13 is connected to the hook mouth of the hook body 25 through a rotating shaft 26, when the lower moving contact 13 rotates upwards, the lower moving contact contacts with the outer side of the lower static contact piece 23, and when the lower moving contact rotates reversely, the lower moving contact is separated from the lower static contact piece 23. The lower movable contact point of the lower movable contact 13 is an inclined plane matched with the outer side edge of the V-shaped elastic sheet. The lower static contact 15 provides a lower hook for the protection device and is a lower rotary joint of the protection device, and the lower static contact 16 in the lower static contact 15 provides elastic electrical connection for the protection device, so that a leakage circuit of the protection device is smoothly connected with a ground wire. The lower moving contact 13 is connected with the lower fixed contact 15, is a rotating shaft component which rotates and is in elastic contact with the lower moving contact to form electric connection, and the lower moving contact 13 is designed with a structure which can be operated by an insulating rod, for example, the lower moving contact is of an annular structure, so that the overvoltage protection device capable of being thrown and retracted by electrification can be conveniently assembled and disassembled.
Further, the outer end of the insulating spacer 11 is connected to the lower moving contact 13 through a connection shaft 27. When the protection device falls down after failure, the protection device comprises: the motion of the separator is divided into two parts, and the tension of the guide line disappears; and after the lower movable contact and the insulating isolation piece are not tensioned and bound, the lower movable contact rotates by taking a connecting rotating shaft between the insulating isolation piece and the lower movable contact as an axle center.
The current lead 14 is a soft copper braided wire for connecting the electrical connection between the disconnector 12 and the lower movable contact.
The discharging assembly comprises an upper arc striking ball piece 7, an insulating column 8 and a lower arc striking ball piece 9, and an outer serial fixed gap of the protection device is formed; the insulation distance of the insulation column 8 is larger than the distance of a discharge gap formed between the upper arc striking ball and the lower arc striking ball, so that the preferential discharge of the discharge gap can be ensured.
The lightning arrester 10 is a lightning arrester with zinc oxide resistor sheets arranged inside. The zinc oxide arrester is an overvoltage protection core component, a zinc oxide resistor disc is arranged in the zinc oxide arrester, the zinc oxide resistor disc has nonlinear resistance, when overvoltage generated in a circuit exceeds the action value of the resistor disc, the resistance value of the zinc oxide resistor disc is reduced in an avalanche mode to reach a conducting state, the overvoltage is eliminated in a dredging mode, and when the circuit voltage is recovered to be normal, the zinc oxide resistor disc is recovered to a high-resistance cut-off state.
The upper part of the column insulator 18 is provided with a groove for placing a wire by arranging a wire pressing cover 2, and the upper part of the wire pressing cover 2 is fixed by a wire pressing bolt 1.
In addition, the insulating isolation piece forms the insulating isolation of the lower end of the lightning arrester and the lower moving contact, and has a stable connection function. The detacher has the function of judging the failure of the lightning arrester, and when the lightning arrester breaks down thoroughly and cannot recover a high resistance value, the lightning arrester is in a failure state, and the detacher is exploded at the moment, so that the two ends of the detacher are separated. At the moment, the state of the overvoltage protection device capable of being switched on and off changes, the upper moving contact is turned over by disconnecting the upper fixed contact, the head is changed from upward to downward, and the fault part is immediately separated from high voltage, so that maintenance personnel can conveniently observe the damage of the protection device under the rod.
The device has the over-voltage protection function, the arrester with the series gap and the column insulator are highly integrated into a whole, when lightning induced over-voltage exists in a circuit, the zinc oxide resistor chip acts to be conducted, the over-voltage is eliminated in a dredging mode, after the over-voltage is eliminated, the zinc oxide resistor chip is recovered to be high in resistance value to be cut off, a drainage channel is closed, and the circuit is recovered to normally run. The discharge gap connected in series with the lightning arrester can prevent line voltage from being applied to the zinc oxide resistor disc during normal operation, so that the resistor disc is prevented from being failed in advance during long-term under-voltage operation, and the effective duration of the whole device can be effectively prolonged. When the resistor sheet is thoroughly broken down, the high resistance cannot be recovered, at the moment, the disengager acts, the overvoltage protection device capable of being thrown and withdrawn turns downwards to separate from the incoming line voltage, at the moment, the device automatically withdraws from the power system, and the self fault cannot be expanded into an integral line fault. When the inspection staff finds that the protection device turns downwards, the protection device can be taken down by using the insulation operation rod, and after a new accessory is replaced, the protection device with the base being well detected can be put into a power grid by using the insulation operation rod again, so that the protection function of the circuit is continuously provided.
The overvoltage protection device is designed with a self-exit function, such as failure of the overvoltage protection function, the action of a disengager connected in series in a leakage circuit, and the protection part automatically drops and overturns to exit the power system. And when the line inspection is carried out, whether the line inspection is invalid or not can be conveniently distinguished.
The overvoltage protection device is designed with an electrified switching function, and can be withdrawn from a power grid under the electrified condition by using the insulating rod, and can be charged again to operate by the insulating rod after being taken down and detected well.
The overvoltage protection device and the line insulator are highly integrated, and are directly installed at the position where the insulator is installed, so that no extra space is required to be occupied independently, and no independent cross arm is required to be erected. In addition, the circuit is directly connected to the top of the insulator, so that an additional lead is not needed to be additionally arranged, and the method is simple and convenient.
The above examples are merely illustrative of the preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, and various modifications and improvements made by those skilled in the art to the technical solution of the present utility model should fall within the scope of protection defined by the claims of the present utility model without departing from the spirit of the present utility model.
Claims (10)
1. The protection device is characterized by comprising a protection device access seat and an overvoltage protection device;
the protective device access seat comprises an upper access part connected to the upper part of the column insulator and a lower access part arranged at the lower part of the insulator, wherein the upper access part comprises an upper cross rod and an upper fixed contact with an upper fixed contact arranged at the end part of the upper cross rod, and the lower access part comprises a lower cross rod and a lower fixed contact with a lower fixed contact arranged at the end part of the lower cross rod;
the overvoltage protection device comprises an upper moving contact with an upper moving contact, a discharge assembly, a lightning arrester, a disconnector and a lower moving contact with a lower moving contact; the upper moving contact is connected with the upper fixed contact in a clamping manner, and in a clamping state, the upper moving contact is contacted with the upper fixed contact; the discharging assembly is arranged on the upper part of the lightning arrester, the separator is arranged on the lower part of the lightning arrester, an insulating separator which is inclined downwards is arranged between the lightning arrester and the separator, the outer end of the insulating separator is connected with the lower moving contact, and the lower end of the separator is electrically connected with the lower moving contact through a current conducting wire; the lower part of the lower moving contact is connected to the lower part of the lower fixed contact in a rotatable mode, when the lower moving contact rotates upwards, the lower moving contact arranged on the outer side of the upper part of the lower moving contact is in elastic contact with the lower fixed contact, and when the lower moving contact rotates reversely, the lower moving contact is separated from the lower fixed contact.
2. The protection device for facilitating uninterrupted operation according to claim 1, wherein a clamping piece with a concave middle part is arranged below the upper fixed contact, one end of the clamping piece is connected with the lower fixed contact, the other end of the clamping piece is a free end extending out of the lower fixed contact, and a convex part arched upwards is arranged at the concave part of the clamping piece, namely the upper fixed contact; an elastic piece is arranged between the convex part and the upper fixed contact above; when the upper moving contact is clamped to the clamping piece, the upper moving contact is clamped and contacted with the upper static contact.
3. The protection device for facilitating uninterrupted operation of claim 1, wherein an operating ring is provided on an outer side of the upper moving contact.
4. The protection device for facilitating uninterrupted operation according to claim 1, wherein a lower stationary contact sheet and a hook member are arranged below the lower stationary contact, the hook member is a plate-shaped structure extending downwards from two sides of the lower stationary contact, a hook body with an upward hook opening is arranged on the lower side of the plate-shaped structure, the lower stationary contact sheet is arranged at the bottom of the lower stationary contact between the two plate-shaped structures, and one end of the lower stationary contact sheet is connected with a V-shaped elastic sheet of the lower stationary contact; the lower part of the lower moving contact is connected to the hook opening of the hook body through a rotating shaft, the lower moving contact is contacted with the outer side of the lower static contact sheet when the lower moving contact rotates upwards, and the lower moving contact is separated from the lower static contact sheet when the lower moving contact rotates reversely.
5. The protective device for facilitating uninterrupted operation of claim 4, wherein the lower moving contact portion of the lower moving contact is a bevel surface in engagement with an outer side of the V-shaped spring.
6. The protective device for facilitating uninterrupted operation of claim 1, wherein an outer end of the insulating spacer is connected to the lower moving contact through a rotating shaft.
7. The protective apparatus of claim 1 wherein said current lead is a soft copper braided wire.
8. The protective device of claim 1, wherein the discharge assembly comprises an upper arc striking ball member, an insulating column and a lower arc striking ball member, and wherein the insulating column has an insulation distance greater than a discharge gap distance defined between the upper and lower arc striking balls.
9. The protective device for facilitating uninterrupted operation of claim 1, wherein the arrester is an arrester having zinc oxide resistive sheets installed therein.
10. The protective device for facilitating uninterrupted operation of claim 1, wherein said post insulator upper portion is formed with a groove for placing a wire by providing a wire-pressing cover, said wire-pressing cover being secured above by a wire-pressing bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320889464.7U CN219779766U (en) | 2023-04-19 | 2023-04-19 | Protection device convenient for uninterrupted operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320889464.7U CN219779766U (en) | 2023-04-19 | 2023-04-19 | Protection device convenient for uninterrupted operation |
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| Publication Number | Publication Date |
|---|---|
| CN219779766U true CN219779766U (en) | 2023-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320889464.7U Active CN219779766U (en) | 2023-04-19 | 2023-04-19 | Protection device convenient for uninterrupted operation |
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| Country | Link |
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| CN (1) | CN219779766U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117154632A (en) * | 2023-10-30 | 2023-12-01 | 三峡金沙江云川水电开发有限公司 | Mounting structure of lightning arrester of hydropower plant |
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2023
- 2023-04-19 CN CN202320889464.7U patent/CN219779766U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117154632A (en) * | 2023-10-30 | 2023-12-01 | 三峡金沙江云川水电开发有限公司 | Mounting structure of lightning arrester of hydropower plant |
| CN117154632B (en) * | 2023-10-30 | 2024-01-02 | 三峡金沙江云川水电开发有限公司 | Mounting structure of lightning arrester of hydropower plant |
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