CN204361483U - A kind of count enable cuts arc lightning protection device - Google Patents
A kind of count enable cuts arc lightning protection device Download PDFInfo
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- CN204361483U CN204361483U CN201520094189.5U CN201520094189U CN204361483U CN 204361483 U CN204361483 U CN 204361483U CN 201520094189 U CN201520094189 U CN 201520094189U CN 204361483 U CN204361483 U CN 204361483U
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- lightning protection
- extinguishing
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Abstract
The utility model discloses a kind of count enable and cut arc lightning protection device, comprise lightning protection device main body and arc electrode; Arc electrode is fixedly mounted on one end of lightning protection device main body, and the other end of lightning protection device main body is fixedly mounted on cross-arm by connecting gold utensil; Lightning protection device main body is provided with and is made up of and the arc extinguishing path of arranging in Z-shaped circulation some sections of arc extinguishing passages; Be provided with copper billet in the junction of arc extinguishing passage adjacent between two, and each section of arc extinguishing passage is all placed with two arc-extinguishing tubes, between these two arc-extinguishing tubes, is provided with one leads arc ball; The arc-extinguishing tube at the first paragraph arc extinguishing feeder connection place in described arc extinguishing path is connected with arc electrode by threaded arc guide rod, the arc-extinguishing tube of final stage arc extinguishing channel exit by wire be connected gold utensil and be connected; In the end one section of arc extinguishing channel exit is provided with a counter.The utility model structure is simple, reasonable in design, and arc extinguishing ability is strong, and working stability is reliable, and count enable, be convenient to later maintenance, replacing.
Description
Technical field
The utility model relates to a kind of lightning protection device of transmission line, has particularly related to a kind of isarithmic section of arc lightning protection device.
Background technology
Thunder and lightning is the key factor affecting power transmission line safety, and occupying the first place of line fault tripping operation for a long time, is the natural process of atmospheric events, also uncontrollable so far.But we by analyzing normal accident of sending out, can find thunderbolt rule, strengthen to guard against.As being in, lofty mountains and steep hills or the shaft tower of summit, be in pool or near reservoir transmission line, cross over the mountain ridge or rivers and lakes shaft tower and be arranged on the high shaft tower of earth resistance and rock column foot and power transmission line etc. are all subject to thunderbolt to destroy emphasis.
Thunder and lightning strike can bring multi-form damage and fracture to electric power facility, thundercloud discharge can cause Lightning Over-voltage in electric power system, and overvoltage common in overhead transmission line has thunderbolt directly to impact by the overvoltage of electromagnetic induction on power transmission line and thunder and lightning the overvoltage produced on wire near overhead wire.Thunderbolt causes overvoltage, may cause damage to insulator, power transmission line; Thunderbolt causes insulator arc-over to discharge, and can burn be caused to come off to porcelain surface or cause pattern cracking to glass insulator, dielectric strength is significantly reduced; Thunder and lightning impact, on power transmission line or lightning conducter, may cause disconnected stock even to rupture, transmission of electricity work cannot be carried out.
Transmission line lightning protection always is the important content of power department Thunder Protection, and lightning fault remains one of key factor affecting power grid security.The impulse flashover that transmission line causes when there is thunderbolt, causes line insulator flashover, then produces very large power frequency continued flow, damages insulator string and gold utensil, causes line accident.This power department is generally adopted and installs line thunder protection device additional to realize protection at transmission line.
Electric arc is the free gas of high temperature high conductivity, is eliminated by electric arc, is called for short arc extinguishing.Arc extinguishing has multiple method, is mostly to use certain gas or liquid to bear main rupturing duty.
Lightning protection device be one can discharge thunder and lightning or hold concurrently can discharge power system operation overvoltage energy, protection electrical equipment endanger from instantaneous overvoltage, can afterflow be blocked again, avoid the electrical installation causing system earth short circuit.
As the patent No. a kind of 10 ~ 35kV overhead transmission line constraint space gas jet arc extinguishing lightning protection clearance apparatus being applicable to 10 ~ 35kV overhead transmission line disclosed in 201110090288.2, and for example the patent No. is the 200710066259.6 disclosed constraint space jet-stream wind arc extinguishing lightning protection clearance apparatus for each electric pressure transmission line, all be installed in parallel in line insulator string two ends, flashover voltage between portable protective gaps is less than protected insulator string, thus had precedence over protected insulator string when transmission line is struck by lightning and puncture, during disruptive discharge, while the gas exhausted material of constraint space inside is sharply heated produce gases at high pressure by high-temperature electric arc, the automatic collection signal of signal pickup assembly also starts gas jet generating means, produce high velocity air instantaneously longitudinally to impact electric arc, be cooled to extinguishing, its arc extinguishing ability is more weak.
As the patent No. a kind of different electric pressure segmentation arc extinguishing lightning protection clearance apparatus storehouse disclosed in 201310297789.7, have employed discoid arc extinguishing storage magazine, the bullet that gas carries out arc extinguishing can be produced after can placing a large amount of triggerings, and make arc extinguishing bullet be arranged closely in the storage bullet track of arc extinguishing storage magazine I by the twisting force of plane scroll spring, after the triggering of current arc extinguishing bullet is dropped, next is sent out can enter bullet trigger position automatically, realizes from moving bullet.Although the deficiency that before overcoming, few, the effective arc extinguishing number of times of arc extinguishing bullet is few, does not possess tally function.
If the patent No. is 201120391471.1 disclosed a kind of easy counter for lightning arresters, comprise lightning arrestor movement acquisition module, electronic switch, single-chip microcomputer and display, lightning arrestor movement acquisition module comprises a photoelectrical coupler, the input of photoelectrical coupler connects the switch contact of the heavy-current discharge protective device on lightning arrester, a connect successively filter and two schmitt inverters of its output is connected to the trigger point of electronic switch, the signal output part of electronic switch connects single, the input of sheet machine, the output of single-chip microcomputer connects display, this patent production cost is higher.
As the patent No. a kind of leakage conductor discharge counter disclosed in 201410115787.6, comprise housing, glass capping, valve block, silicon dridge type rectifier, capacitor, message register and display screen, glass capping is set to outer convex spherical formula glass capping, and the outer surface of display screen numeral covers fluorescence coating.Adapt to transmission tower height, the pivoted display of Large numbers all over the screen, smears fluorescent material in number simultaneously, meets the needs of night observation, counter glass capping uses evagination spherical glass instead to increase numerical monitor effect further, but opposing natural calamity ability is more weak.
Although above patent plays a good role to lightning protection, still some shortcomings, the volume as discharge counter is larger, be difficult to be arranged in some specific occasions, anti-tampering ability is weak, easily produces error count, data can not store, and need manual record, waste a large amount of labours.
Summary of the invention
The purpose of this utility model is for the deficiencies in the prior art, provides that a kind of structure is simple, reasonable in design, arc extinguishing ability is strong, the reliable count enable of working stability cuts arc lightning protection device.This count enable cuts arc lightning protection device inside and is provided with Z-shaped arc extinguishing path, form multiple striking outlet, the basis reducing device volume may ensure extinguish arcs greatlyr, and many screw threads gold utensil is fixed on cross-arm, make also can not to rotate or misplace at natural calamity weather such as typhoons, meanwhile, counter coordinates with lightning protection device, ensure device need change in can prepare in advance.
To achieve these goals, the utility model have employed following technical scheme:
A kind of count enable cuts arc lightning protection device, and comprise lightning protection device main body and arc electrode, described arc electrode is fixedly mounted on one end of lightning protection device main body, and the other end of lightning protection device main body is fixedly mounted on cross-arm by connecting gold utensil; Wherein, described lightning protection device main body is provided with and is made up of and the arc extinguishing path of arranging in Z-shaped circulation some sections of arc extinguishing passages; Be provided with copper billet in the junction of arc extinguishing passage adjacent between two, and each section of arc extinguishing passage is all placed with two arc-extinguishing tubes, between these two arc-extinguishing tubes, is provided with one leads arc ball; The arc-extinguishing tube at the first paragraph arc extinguishing feeder connection place in described arc extinguishing path is connected with arc electrode by arc guide rod, the arc-extinguishing tube of final stage arc extinguishing channel exit be connected gold utensil and be connected; In the end one section of arc extinguishing channel exit is provided with a counter.
Lightning protection device of the present utility model, is mainly provided with in Z-shaped arc extinguishing path in lightning protection device body interior, not only extends arc extinguishing path, slenderizing electric arc, and possesses multiple outlet breakpoint, electric arc more easily extinguished and not resume combustion; Be provided with again a counter (action frequency, current action number of times, residue action frequency can be added up) in the exit in arc extinguishing path, attendant can be allowed to know the action frequency of lightning protection device intuitively, be convenient to later stage replacing and safeguard.Be provided with copper billet in the junction of arc extinguishing passage adjacent between two, effectively can limit arc path, ensure that electric arc carries out flashover according to the arc extinguishing path of setting, improve the arc extinction performance of lightning protection device.
Further illustrate as of the present utility model, above-described counter comprises bead receptacle and is placed on the counting bead in bead receptacle; The outlet of described bead receptacle is corresponding with the outlet of final stage arc extinguishing passage.When lightning protection device carries out action, the outlet of final stage arc extinguishing passage still has air blast to blow out, and can be positioned at the counting bead blowout in the exit of bead receptacle like this.
Further illustrate as of the present utility model, the exit of above-described bead receptacle is provided with a baffle plate.Arranging baffle plate can prevent when lightning protection device is failure to actuate, the phenomenon of counting bead Automatic-falling.
Further illustrate as of the present utility model, above-described counting bead adopts different colours or numeral to mark.
Further illustrate as of the present utility model, above-described counter is spiral or vertical or adjustable crossmember type counter.
Further illustrate as of the present utility model, the bead receptacle of above-described spiral counter is arranged in lightning protection device main body in the shape of a spiral.
Further illustrate as of the present utility model, above-described adjustable crossmember type counter is arranged on the bottom of lightning protection device main body by fixing outer ring, and the inside of bead receptacle is provided with spring.Counting bead modes of emplacement can be perpendicular to fixing outer ring, also can be parallel to fixing outer ring, when device action once, exit bead is blown one, the spring compressed just will be positioned at the counting bead boost exports place on side, exit, and counting bead carry, waits for next action.
Further illustrate as of the present utility model, the bottom of above-described lightning protection device main body is built-in with nut I; The outer surface of described connection gold utensil is provided with external screw thread, and adopts external nut to be fixed sheet to be threaded with the nut I of lightning protection device body interior.Between nut, place stator, when can ensure lightning protection device action, electric arc walking path is nut outer surfaces, instead of inner thread, prevents inner thread from damaging and causes lightning protection device to drop.Adopt thread connecting mode, the firm connection of lightning protection device can be ensured, even if still can not rotate or misplace under the severe natural calamity weather such as typhoon.
Further illustrate as of the present utility model, above-described lightning protection device main body adopts hydrophobic material to make, and the outer surface of lightning protection device main body is provided with full skirt.Meanwhile, the external shape of lightning protection device main body can make insulator shape.Even if the lightning protection device main body of hydrophobicity material makes each entrance and exit of the passage of lightning protection device inside have the media such as water to enter, still can action message.
Further illustrate as of the present utility model, above-described arc electrode is graphite electrode; It is described that to lead arc ball be graphite bead or be copper bead; Described arc-extinguishing tube is thin ceramic tubes; The both sides of described copper billet are provided with through hole.
The course of work of the present utility model (operation principle):
When there is thunderbolt in transmission line, of the present utility model section of arc lightning protection device by arc electrode electric arc introduced lightning protection device body interior in Z-shaped arc extinguishing path (due to copper billet and the striking effect leading arc ball, arc path is prescribed, can not from lightning protection device body surfaces generation flashover); When electric arc each section of arc extinguishing passage in arc extinguishing path, the arc-extinguishing tube Yin Gaowen in arc extinguishing passage produces air blast, blows draw the flex point of electric arc, and slenderizing electric arc, makes electric arc be more prone to be blown out and not resume combustion again.Be arranged on the counter at arc extinguishing path outlet place, counting bead is dropped by the blowout of air blast, achieves the statistics of action frequency.Namely, of the present utility model section of arc lightning protection device is triggered by lightening pulse, the development track of preferential attraction, control and change lightning impulse electric arc, make impact electric arc after by arc-extinguishing tube strong compression, bending, in arc-extinguishing tube, produce high axial pressure gradient, electric arc is outwardly sprayed by arc-extinguishing tube, electric arc is made to produce fracture at multiple spot, form the segmentation electric arc of large scale in overall arc extinguishing structure, thus arc energy weakens, extinguish arcs.
Advantage of the present utility model:
1. structure is simple, reasonable in design, and arc extinguishing ability is strong, and working stability is reliable.Arrange the arc extinguishing path in Z-shaped circulation arrangement in lightning protection device body interior, and be provided with copper billet and lead arc ball, effectively define the path of electric arc, ensure that electric arc expands through multi-drawing, electric arc forms multibreak, extinguishes rapidly and phenomenon of not restriking.
2. count enable, is convenient to later maintenance, replacing.At arc extinguishing path outlet, place arranges counter, by action once, blow off one and count bead, attendant can be allowed to know action frequency, current action number of times, residue action frequency etc. fast intuitively, be convenient to change lightning protection device in time, safeguard, ensure the operation duration of lightning protection device.
3. safe and reliable.Of the present utility model section of arc lightning protection device is fixed on cross-arm by connecting gold utensil, and connect and to adopt external nut to be fixed sheet with the nut I of lightning protection device body interior between gold utensil with lightning protection device main body to be threaded, when can ensure lightning protection device action, electric arc walking path is nut outer surfaces, instead of inner thread, prevent inner thread from damaging and cause lightning protection device to drop.Adopt thread connecting mode, the firm connection of lightning protection device can be ensured, even if still can not rotate or misplace under the severe natural calamity weather such as typhoon.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model one embodiment.
Fig. 2 is the structural representation of another embodiment of the utility model.
Fig. 3 is the structural representation of the another embodiment of the utility model.
Fig. 4 is arc extinguishing path schematic diagram in the utility model.
Fig. 5 is the schematic diagram of arc extinguishing passage in the utility model.
Reference numeral:
1-lightning protection device main body, 2-arc electrode, 3-copper billet, 4-arc extinguishing path, 5-counts bead, 6-bead receptacle, and 7-connects gold utensil, 8-stator, 9-nut I, 10-spring, and 11-fixes outer ring, 12-arc extinguishing passage, and 13-leads arc ball, 14-arc-extinguishing tube.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further illustrated.
Embodiment 1:
As shown in Fig. 1,4-5, a kind of count enable cuts arc lightning protection device, comprises lightning protection device main body 1 and arc electrode 2, and described arc electrode 2 is fixedly mounted on one end of lightning protection device main body 1, and the other end of lightning protection device main body 1 is fixedly mounted on cross-arm by connecting gold utensil 7; Wherein, described lightning protection device main body 1 is provided with and is made up of and the arc extinguishing path 4 of arranging in Z-shaped circulation some sections of arc extinguishing passages 12; Be provided with copper billet 3 in the junction of arc extinguishing passage 12 adjacent between two, and each section of arc extinguishing passage 12 is all placed with two arc-extinguishing tubes 14, between these two arc-extinguishing tubes 14, is provided with one leads arc ball 13; The arc-extinguishing tube at the first paragraph arc extinguishing feeder connection place in described arc extinguishing path 4 is connected with arc electrode 2 by arc guide rod, the arc-extinguishing tube of final stage arc extinguishing channel exit by wire be connected gold utensil 7 and be connected; In the end one section of arc extinguishing channel exit is provided with a counter.
The counting bead 5 that described counter comprises bead receptacle 6 and is placed in bead receptacle 6; The outlet of described bead receptacle 6 is corresponding with the outlet of final stage arc extinguishing passage.The exit of described bead receptacle 6 is provided with a baffle plate.Described counting bead 5 adopts different colours to mark.Described counter is spiral counter.The bead receptacle 6 of described spiral counter is arranged in lightning protection device main body 1 in the shape of a spiral.
Described lightning protection device main body 1 adopts hydrophobic material to make, and the outer surface of lightning protection device main body 1 is provided with full skirt.Described arc electrode 2 is graphite electrode; Described arc ball 13 of leading is for graphite bead or be copper bead; Described arc-extinguishing tube 14 is thin ceramic tubes; The both sides of described copper billet 3 are provided with through hole.
Embodiment 2:
As in Figure 3-5, a kind of count enable cuts arc lightning protection device, comprises lightning protection device main body 1 and arc electrode 2, and described arc electrode 2 is fixedly mounted on one end of lightning protection device main body 1, and the other end of lightning protection device main body 1 is fixedly mounted on cross-arm by connecting gold utensil 7; Wherein, described lightning protection device main body 1 is provided with and is made up of and the arc extinguishing path 4 of arranging in Z-shaped circulation some sections of arc extinguishing passages 12; Be provided with copper billet 3 in the junction of arc extinguishing passage 12 adjacent between two, and each section of arc extinguishing passage 12 is all placed with two arc-extinguishing tubes 14, between these two arc-extinguishing tubes 14, is provided with one leads arc ball 13; The arc-extinguishing tube at the first paragraph arc extinguishing feeder connection place in described arc extinguishing path 4 is connected with arc electrode 2 by threaded arc guide rod (employing thread connecting mode), the arc-extinguishing tube of final stage arc extinguishing channel exit be connected gold utensil 7 and be connected; In the end one section of arc extinguishing channel exit is provided with a counter.
The counting bead 5 that described counter comprises bead receptacle 6 and is placed in bead receptacle 6; The outlet of described bead receptacle 6 is corresponding with the outlet of final stage arc extinguishing passage.The exit of described bead receptacle 6 is provided with a baffle plate.Described counting bead 5 adopts numeral to mark.Described counter is adjustable crossmember type counter.Described adjustable crossmember type counter is arranged on the bottom of lightning protection device main body 1 by fixing outer ring 11, and the inside of bead receptacle 6 is provided with spring 10.
Described lightning protection device main body 1 adopts hydrophobic material to make, and the outer surface of lightning protection device main body 1 is provided with full skirt.Described arc electrode 2 is graphite electrode; Described arc ball 13 of leading is for graphite bead or be copper bead; Described arc-extinguishing tube 14 is thin ceramic tubes; The both sides of described copper billet 3 are provided with through hole.
Embodiment 3:
As shown in Fig. 2,4-5, a kind of count enable cuts arc lightning protection device, comprises lightning protection device main body 1 and arc electrode 2, and described arc electrode 2 is fixedly mounted on one end of lightning protection device main body 1, and the other end of lightning protection device main body 1 is fixedly mounted on cross-arm by connecting gold utensil 7; Wherein, described lightning protection device main body 1 is provided with and is made up of and the arc extinguishing path 4 of arranging in Z-shaped circulation some sections of arc extinguishing passages 12; Be provided with copper billet 3 in the junction of arc extinguishing passage 12 adjacent between two, and each section of arc extinguishing passage 12 is all placed with two arc-extinguishing tubes 14, between these two arc-extinguishing tubes 14, is provided with one leads arc ball 13; The arc-extinguishing tube at the first paragraph arc extinguishing feeder connection place in described arc extinguishing path 4 is connected with arc electrode 2 by arc guide rod (employing welding manner), the arc-extinguishing tube of final stage arc extinguishing channel exit by nut I 9 be connected gold utensil 7 and be connected; In the end one section of arc extinguishing channel exit is provided with a counter.
The counting bead 5 that described counter comprises bead receptacle 6 and is placed in bead receptacle 6; The outlet of described bead receptacle 6 is corresponding with the outlet of final stage arc extinguishing passage.The exit of described bead receptacle 6 is provided with a baffle plate.Described counting bead 5 adopts numeral to mark.Described counter is vertical counter.
The bottom of described lightning protection device main body 1 is built-in with nut I 9; The outer surface of described connection gold utensil 7 is provided with external screw thread, and adopts external nut to be fixed sheet 8 to be threaded with the nut I 9 of lightning protection device main body 1 inside.Described lightning protection device main body 1 adopts hydrophobic material to make, and the outer surface of lightning protection device main body 1 is provided with full skirt.Described arc electrode 2 is graphite electrode; Described arc ball 13 of leading is for graphite bead or be copper bead; Described arc-extinguishing tube 14 is thin ceramic tubes; The both sides of described copper billet 3 are provided with through hole.
Claims (10)
1. a count enable cuts arc lightning protection device, comprise lightning protection device main body (1) and arc electrode (2), described arc electrode (2) is fixedly mounted on one end of lightning protection device main body (1), and the other end of lightning protection device main body (1) is fixedly mounted on cross-arm by connecting gold utensil (7); It is characterized in that: described lightning protection device main body (1) is provided with and is made up of and the arc extinguishing path (4) of arranging in Z-shaped circulation some sections of arc extinguishing passages (12); Be provided with copper billet (3) in the junction of arc extinguishing passage (12) adjacent between two, and each section of arc extinguishing passage (12) is all placed with two arc-extinguishing tubes (14), between these two arc-extinguishing tubes (14), is provided with one leads arc ball (13); The arc-extinguishing tube at the first paragraph arc extinguishing feeder connection place of described arc extinguishing path (4) is connected with arc electrode (2) by arc guide rod, the arc-extinguishing tube of final stage arc extinguishing channel exit be connected gold utensil (7) and be connected; In the end one section of arc extinguishing channel exit is provided with a counter.
2. count enable according to claim 1 cuts arc lightning protection device, it is characterized in that: described counter comprises bead receptacle (6) and is placed on the counting bead (5) in bead receptacle (6); The outlet of described bead receptacle (6) is corresponding with the outlet of final stage arc extinguishing passage.
3. count enable according to claim 2 cuts arc lightning protection device, it is characterized in that: the exit of described bead receptacle (6) is provided with a baffle plate.
4. count enable according to claim 2 cuts arc lightning protection device, it is characterized in that: described counting bead (5) adopts different colours or numeral to mark.
5. count enable according to claim 2 cuts arc lightning protection device, it is characterized in that: described counter is spiral or vertical or adjustable crossmember type counter.
6. count enable according to claim 5 cuts arc lightning protection device, it is characterized in that: the bead receptacle (6) of described spiral counter is arranged in lightning protection device main body (1) in the shape of a spiral.
7. count enable according to claim 5 cuts arc lightning protection device, it is characterized in that: described adjustable crossmember type counter is arranged on the bottom of lightning protection device main body (1) by fixing outer ring (11), and the inside of bead receptacle (6) is provided with spring (10).
8. count enable according to claim 1 cuts arc lightning protection device, it is characterized in that: the bottom of described lightning protection device main body (1) is built-in with nut I (9); The outer surface of described connection gold utensil (7) is provided with external screw thread, and the nut I (9) adopting external nut to be fixed sheet (8) inner with lightning protection device main body (1) is threaded.
9. count enable according to claim 1 cuts arc lightning protection device, it is characterized in that: the outer surface of described lightning protection device main body (1) is provided with full skirt.
10. count enable according to claim 1 cuts arc lightning protection device, it is characterized in that: described arc electrode (2) is graphite electrode; Described arc ball (13) of leading is for graphite bead or be copper bead; Described arc-extinguishing tube (14) is thin ceramic tubes; The both sides of described copper billet (3) are provided with through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520094189.5U CN204361483U (en) | 2015-02-10 | 2015-02-10 | A kind of count enable cuts arc lightning protection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520094189.5U CN204361483U (en) | 2015-02-10 | 2015-02-10 | A kind of count enable cuts arc lightning protection device |
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| CN204361483U true CN204361483U (en) | 2015-05-27 |
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| CN201520094189.5U Active CN204361483U (en) | 2015-02-10 | 2015-02-10 | A kind of count enable cuts arc lightning protection device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104701743A (en) * | 2015-02-10 | 2015-06-10 | 王巨丰 | Countable cut arc lightning arrester |
| CN106841945A (en) * | 2017-02-08 | 2017-06-13 | 哈尔滨理工大学 | A kind of photoelectricity binary channel bushing for measuring the inferior discharge parameter of gas soup |
-
2015
- 2015-02-10 CN CN201520094189.5U patent/CN204361483U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104701743A (en) * | 2015-02-10 | 2015-06-10 | 王巨丰 | Countable cut arc lightning arrester |
| CN106841945A (en) * | 2017-02-08 | 2017-06-13 | 哈尔滨理工大学 | A kind of photoelectricity binary channel bushing for measuring the inferior discharge parameter of gas soup |
| CN106841945B (en) * | 2017-02-08 | 2023-06-20 | 哈尔滨理工大学 | Photoelectric double-channel high-voltage sleeve for measuring gas thonson discharge parameters |
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