CN103558420A - Primary current transmission test assist device for outdoor breaker - Google Patents
Primary current transmission test assist device for outdoor breaker Download PDFInfo
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- CN103558420A CN103558420A CN201310502286.9A CN201310502286A CN103558420A CN 103558420 A CN103558420 A CN 103558420A CN 201310502286 A CN201310502286 A CN 201310502286A CN 103558420 A CN103558420 A CN 103558420A
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- 238000012360 testing method Methods 0.000 title claims abstract description 25
- 230000005540 biological transmission Effects 0.000 title claims abstract description 20
- 230000006835 compression Effects 0.000 claims description 15
- 238000007906 compression Methods 0.000 claims description 15
- 238000005452 bending Methods 0.000 claims description 5
- 230000009194 climbing Effects 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000009413 insulation Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 14
- 230000001174 ascending effect Effects 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
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Abstract
The invention discloses a primary current transmission test assist device for an outdoor breaker. The primary current transmission test assist device comprises a left clamping arm and a right clamping arm, wherein the lower end of the left clamping arm and the lower end of the right clamping arm are movably connected together. The upper portion of the left clamping arm and the upper portion of the right clamping arm are respectively arranged to be a left semi-ring and a right semi-ring, wherein the left semi-ring and the right semi-ring are matched in the opposite direction. An assist rod extending in the transverse direction is fixedly arranged in the middle of the left clamping arm, an assist hole matched with the assist rod is formed in the middle of the right clamping arm, an elastic device elastically pressing the right semi-ring on the left semi-ring through the right clamping arm is arranged on the assist rod, a locking piece used for being connected with a cable is arranged on an end portion of the assist rod, the upper end of the left clamping arm and the upper end of the right clamping arm are arranged to be in an open shape, and an insulation rod is fixedly connected at the lower end of the left clamping arm. The primary current transmission test assist device has the advantages of being reasonable in structure, convenient and quick to wire, safe and simple in operation and beneficial to reducing work difficulty of electric power maintenance personnel and improving work efficiency of the maintenance personnel, and climbing high is not needed.
Description
Technical field
The present invention relates to a kind of outdoor breaker primary current transmission test assistor.
Background technology
When Outdoor Trusses For Transformer Substation isolating switch is carried out to relay protection correlation test, need to be from isolating switch both sides once part wiring simulation are added electric current and are tested.Owing to there is no special-purpose termination or experiment servicing unit, at present, general employing by relay protection personnel by climbing insulating ladder, presss from both sides test lead to the mode at wire position, isolating switch both sides and carries out hanging wire.There is following shortcoming in which: 1, isolating switch wire position generally apart from ground more than 3 meters, so personnel ascend a height and carry out operation, not only ascend a height and high-altitude application dangerous, and there is high-altitude electric shock hidden danger; 2, isolating switch both sides wire position, can not carry out test wire simultaneously and fix, and at least needs ascend operation twice, therefore, wastes time and energy, and has indirectly caused work efficiency low, has extended power off time.
Summary of the invention
The present invention is exactly for the problems referred to above, provides a kind of rational in infrastructure, easy-to-connect, fast, and without ascending a height, and handling safety, simple outdoor breaker primary current transmission test assistor.
The design feature of this outdoor breaker primary current transmission test assistor is: comprise left jig arm and right jig arm that lower end is movably connected, the left semi-ring and the right semi-ring that coordinate are in opposite directions arranged to respectively in left jig arm and right jig arm top, left jig arm middle part is installed with the auxiliary rod of horizontal expansion, right jig arm middle part is provided with the via hole coordinating with auxiliary rod, auxiliary rod is provided with by right jig arm right semi-ring elastic compression elastic device on left semi-ring, auxiliary rod end is provided with the locking member of stube cable, uncovered shape is arranged in left jig arm and right jig arm upper end, left jig arm lower end is connected with insulating bar.
The present invention realizes easy-to-connect, quick by extension Automatic-clamping structure, without ascending a height, and handling safety, simple.
Extension Automatic-clamping structure mainly comprises left jig arm and the right jig arm that is arranged on insulating bar upper end, and left semi-ring and right semi-ring are arranged to respectively in left jig arm and right jig arm top, also comprise can be by left semi-ring the elastic device together with right semi-ring elastic compression.Left semi-ring bottom is connected with insulating bar, by the support progradation of insulating bar, other parts of this outdoor breaker primary current transmission test assistor can be sent to eminence, not only avoided the operation of climbing insulating ladder, dangerous and the electric shock hidden danger of having avoided ascending a height, the hidden danger of also having avoided close contact wire, has effectively guaranteed processing safety.Left jig arm and right jig arm are to realize the critical piece of clamping function, and both are movably connected lower end, thus both can centered by the connecting portion of lower end, mutually swing near or separated, also just realize the action that clamps or open.Described elastic device is arranged on the auxiliary rod that sets firmly left jig arm middle part, and right jig arm is provided with the via hole coordinating with auxiliary rod, so that the relatively left jig arm of right jig arm swings.The Main Function of elastic device, is to provide elastic clamping power, namely clamps the clamping force of isolating switch sidepiece wire.Like this, under the effect of elastic device, right jig arm and left jig arm just can elastic clamping together with.
Left semi-ring and right semi-ring are arranged to respectively in left jig arm and right jig arm top, and left semi-ring and right semi-ring arrange in opposite directions.Like this, when left jig arm and right jig arm are opened action, left semi-ring and right semi-ring mutually away from, be also to open action.When left jig arm and right jig arm are that while clamping action, left semi-ring and right semi-ring snap together in opposite directions, form a complete ring-type.For convenience of narration, this ring is called to clamping ring.Therefore, when outdoor isolating switch sidepiece wire is clamped in clamping ring, clamping ring not only can play the clamping action to wire, to guarantee the electrical connection of clamping ring and wire, can also play the locking action to wire, so that the clamped ring of wire can not get loose after clamping easily, effectively guaranteed the reliability of wiring or hanging wire.Uncovered shape is arranged in the upper end of left jig arm and right jig arm, and namely outer imperial palace is little or the large open rearward end of front opening is little, for convenience of narration, is referred to as uncovered portion.After arranging like this, when needs clamp isolating switch sidepiece wire, just not needing to control left jig arm and right jig arm does and opens action, also not needing to control left semi-ring and right semi-ring does and opens action, need be also only that isolating switch avris wire is aimed at by uncovered portion by the front end of left jig arm and right jig arm, and push hard guiding line.Because left jig arm with under the effect of right jig arm at elastic device, be together with elastic clamping, therefore, when firmly pushing uncovered portion to isolating switch sidepiece wire, wire can overcome the compression of elastic device or clamp elastic force and strut gradually uncovered portion, also struts left jig arm and right jig arm.When continuing the uncovered portion of left jig arm and right jig arm upper end to push wire to, wire will inevitably continue deeply along uncovered portion, until enter in the clamping ring on left jig arm and right jig arm top.Now, clamping ring can be under the elastic force effect of elastic device, and elasticity is clamped on wire outside, has played the effect that left jig arm and right jig arm are reliably electrically connected to wire.Because auxiliary rod end is electrically connected to cable by locking member, so now cable keeps reliable electrical connection by auxiliary rod, left jig arm and right jig arm and wire, also realized the object of wiring or hanging wire.In brief, while needing wiring, control on the ground insulating bar wire is pushed to clamping ring along uncovered portion, operate very simple.Contrary, after experiment, in the time of need to connecting other wires and maybe need to remove this outdoor breaker primary current transmission test assistor, only need control insulating bar and pull downwards, can make wire skid off along clamping ring upper port, operate very simple.
As a kind of implementation, described elastic device comprises the adjusting nut that is screwed onto auxiliary rod right-hand member, also comprises the right jig arm that middle part arranges near left jig arm elastic bending away from left jig arm, both ends.
By right jig arm be arranged to middle part away from left jig arm, both ends near left jig arm, exactly left jig arm is arranged to arc or " C " shape.Because right jig arm is elastic bending, therefore, right jig arm has structurally just had elasticity.The adjusting nut that auxiliary rod right-hand member is spirally connected can compress by the mode of precession on auxiliary rod right jig arm, namely adjusts the elastic compression degree of right jig arm and left jig arm, can freely adjust according to actual wire thickness and other requirements, and versatility is stronger.
As another kind of implementation, described elastic device comprises the adjusting nut that is screwed onto auxiliary rod right-hand member, also comprises and is sleeved on the spring together with left jig arm elastic compression on auxiliary rod and by right jig arm.
By precession and back-out adjusting nut, can adjust the elastic compression degree of the right jig arm of spring compression and left jig arm, its principle of work and method of operating are similar to the above, at this, no longer carefully state.
As improvement, on left semi-ring inwall, be evenly equipped with the cone piece that the semi-ring ring heart extends left.
On left semi-ring inwall, arranging after cone piece, when left semi-ring clamping wire, is exactly respectively to bore piece clamping wire, rather than left semi-ring inwall clamping wire.During left semi-ring inwall clamping wire, often certain on left semi-ring inwall a bit or very little area contact with wire, that is to say, by Multi-contact or multiple spot clamping, replace original single-point or small size to contact.Like this, with regard to having increased left semi-ring left semi-ring inwall when the clamping wire, count with contacting of wire, actually played the effect that increases left semi-ring inwall and wire contact area, guaranteed the reliability being electrically connected to, improved wiring or hanging wire effect.To bore piece and extend and arrange to the ring heart by left semi-ring inwall, can make respectively to bore the application of force equalization of piece to wire, and so just can guarantee cone piece as much as possible clamping wire simultaneously, contribute to improve electrical connection effect.
As further improvement, on the left semi-ring between cone piece, the switch that the semi-ring ring heart extends is installed left, left jig arm bottom is provided with the battery case of splendid attire battery, and the pilot lamp that forms current supply circuit with battery, switch is installed on battery case.
On left semi-ring inwall at cone between piece, switch is set, the actuating length that can make respectively to bore piece and be switch carries out spacing.Also when clamping wire; wire can only arrive cone position corresponding to piece top by pull switch, can not continue pull switch action, so not only can guarantee reliable trigger switch; and be unlikely excessive trigger switch, played the protective effect to switch machine structure.The bearing of trend of switch is arranged unanimously with the bearing of trend of cone piece, and when clamping wire, wire can apply extruding force to switch along the regular event track of switch, and the deflection problem while effectively having avoided extruding, has guaranteed the reliable use of switch.Left semi-ring and right semi-ring are after clamping wire, and switch is triggered, and now battery is to the loop of pilot lamp power supply by switch connection, and pilot lamp is luminous, remind reliable grip wire of people, can test, not only intuitively but also convenient.
As improvement, described insulating bar comprises the bar section that some head and the tail are screwed together.
Insulating bar is arranged to be screwed together and form from beginning to end by some bar sections, can freely adjusts according to actual needs the bar hop count amount being spirally connected, namely total length, until satisfy the demand, operates convenient.
In sum, adopt the outdoor breaker primary current transmission test assistant structure of this structure reasonable, easy-to-connect, quick, without ascending a height, and handling safety, simple, contributes to reduce electric power maintenance personnel's work difficulty and improves maintainer's work efficiency.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is described in further details.
Fig. 1 is structural representation of the present invention.
In figure: 1 is insulating bar; 2 is left jig arm; 3 is right jig arm; 4 is auxiliary rod; 5 is via hole; 6 is left semi-ring; 7 is right semi-ring; 8 is locking member; 9 is adjusting nut; 11 is cone piece, and 12 is switch, and 13 is battery, and 14 is battery case, and 15 is pilot lamp, and 16 is bar section.
Embodiment
As shown in the figure, this outdoor breaker primary current transmission test assistor comprises left jig arm and the right jig arm that lower end is movably connected, the left semi-ring and the right semi-ring that coordinate are in opposite directions arranged to respectively in left jig arm and right jig arm top, left jig arm middle part is installed with the auxiliary rod of horizontal expansion, right jig arm middle part is provided with the via hole coordinating with auxiliary rod, auxiliary rod is provided with by right jig arm right semi-ring elastic compression elastic device on left semi-ring, auxiliary rod end is provided with the locking member of stube cable, uncovered shape is arranged in left jig arm and right jig arm upper end, left jig arm lower end is connected with insulating bar.
Comprise insulating bar 1, insulating bar 1 upper end is installed with upwardly extending left jig arm 2, and left jig arm 2 lower ends are hinged with upwardly extending right jig arm 3.By the support progradation of insulating bar 1, other parts of this outdoor breaker primary current transmission test assistor can be sent to eminence, not only avoided the operation of climbing insulating ladder, dangerous and the electric shock hidden danger of having avoided ascending a height, the hidden danger of also having avoided close contact wire, has effectively guaranteed processing safety.Left jig arm and right jig arm are to realize the critical piece of clamping function because both lower ends are hinged, so both can centered by the connecting portion of lower end, mutually swing near or separated, also just realize the action that clamps or open.Left jig arm 2 middle parts are installed with auxiliary rod 4, and right jig arm 3 is provided with the via hole 5 coordinating with auxiliary rod 4, like this can be so that right jig arm is relative with left jig arm swings.Auxiliary rod 4 right-hand members are provided with elastic device, and the Main Function of elastic device is to provide elastic clamping power for left jig arm 2 and right jig arm 3.Like this, under the effect of elastic device, right jig arm 3 and left jig arm 2 just can elastic clamping together with, namely clamp the clamping force of isolating switch sidepiece wire.
Uncovered shape is arranged in the upper end of left jig arm 2 and right jig arm 3, and namely outer imperial palace is little or the large lower ending opening of upper end open is little.For convenience of narration, be referred to as uncovered portion, in the present embodiment, uncovered portion is V-shaped.After arranging like this, when needs clamp isolating switch sidepiece wire, just not needing to control left jig arm 2 and right jig arm 3 does and opens action, also not needing to control left semi-ring 6 and right semi-ring 7 does and opens action, need be also only that isolating switch avris wire is aimed at by uncovered portion by the upper end of left jig arm 2 and right jig arm 3, and push hard guiding line.Because left jig arm 2 with under the effect of right jig arm 3 at elastic device, be together with elastic clamping, therefore, when firmly pushing uncovered portion to isolating switch sidepiece wire, wire can overcome the compression of elastic device or clamp elastic force and strut gradually uncovered portion, also struts left jig arm and right jig arm.When continuing the uncovered portion of left jig arm and right jig arm upper end to push wire to, wire will inevitably continue deeply along uncovered portion, until enter in the clamping ring on left jig arm 2 and right jig arm 3 tops.Now, clamping ring can be under the elastic force effect of elastic device, and elasticity is clamped on wire outside, has played the effect that left jig arm 2 and right jig arm 3 are reliably electrically connected to wire.
In the present embodiment, elastic device comprises the adjusting nut 9 that is screwed onto auxiliary rod 4 right-hand members, also comprises the right jig arm that middle part arranges near left jig arm elastic bending away from left jig arm, both ends.By right jig arm be arranged to middle part away from left jig arm, both ends near left jig arm, exactly left jig arm is arranged to arc or " C " shape.Because right jig arm is elastic bending, therefore, right jig arm has structurally just had elasticity.The adjusting nut 9 that auxiliary rod right-hand member is spirally connected can compress by the mode of precession on auxiliary rod right jig arm, namely adjusts the elastic compression degree of right jig arm and left jig arm, can freely adjust according to actual wire thickness and other requirements, and versatility is stronger.
When Practical manufacturing, also elastic device can be arranged to comprise the adjusting nut that is screwed onto auxiliary rod right-hand member, and be sleeved on the spring together with left jig arm elastic compression on auxiliary rod and by right jig arm.This structure is simpler, in figure, does not draw.By precession and back-out adjusting nut, can adjust the elastic compression degree of the right jig arm of spring compression and left jig arm, its principle of work and method of operating are similar to the above, at this, no longer carefully state.
In the present embodiment, on left semi-ring 6 inwalls, be evenly equipped with the cone piece 11 that the semi-ring ring heart extends left.When left semi-ring 6 clamping wire, be exactly respectively to bore piece 11 clamping wires, rather than left semi-ring inwall clamping wire.During left semi-ring inwall clamping wire, often certain on left semi-ring inwall a bit or very little area contact with wire, that is to say, by Multi-contact or multiple spot clamping, replace original single-point or small size to contact.Like this, with regard to having increased left semi-ring left semi-ring inwall when the clamping wire, count with contacting of wire, actually played the effect that increases left semi-ring inwall and wire contact area, guaranteed the reliability being electrically connected to, improved wiring or hanging wire effect.To bore piece and extend and arrange to the ring heart by left semi-ring inwall, can make respectively to bore the application of force equalization of piece to wire, and so just can guarantee cone piece as much as possible clamping wire simultaneously, contribute to improve electrical connection effect.
On left semi-ring 6 between cone piece 11, the switch 12 that the semi-ring ring heart extends is installed left, left jig arm bottom is provided with the battery case 14 of splendid attire battery 13, and the pilot lamp 15 that forms current supply circuit with battery 13, switch 11 is installed on battery case 14.Because switch 12 is arranged in the middle of cone piece 11, so respectively bore piece 11, can carry out spacing for the actuating length of switch 12.Also when clamping wire; wire can only arrive cone position corresponding to piece 11 tops by pull switch 12, can not continue pull switch action, so not only can guarantee reliable trigger switch; and be unlikely excessive trigger switch, played the protective effect to switch 12 physical constructions.The bearing of trend of switch is arranged unanimously with the bearing of trend of cone piece, and when clamping wire, wire can apply extruding force to switch along the regular event track of switch 12, and the deflection problem while effectively having avoided extruding, has guaranteed the reliable use of switch 12.Left semi-ring 6 and right semi-ring 7 are after clamping wire, and switch 12 is triggered, and now battery is connected by switch 12 to the loop of pilot lamp 15 power supply, and pilot lamp 15 is luminous, remind reliable grip wire of people, can test, not only intuitively but also convenient.
In the present embodiment, described insulating bar 1 comprises the bar section 16 that some head and the tail are screwed together, and can freely adjust according to actual needs bar section 16 quantity that are spirally connected like this, and namely total length, until satisfy the demand, operates convenient.
Claims (6)
1. an outdoor breaker primary current transmission test assistor, it is characterized in that: comprise left jig arm (2) and right jig arm (3) that lower end is movably connected, the left semi-ring (6) and the right semi-ring (7) that coordinate are in opposite directions arranged to respectively in left jig arm (2) and right jig arm (3) top, left jig arm (2) middle part is installed with the auxiliary rod (4) of horizontal expansion, right jig arm (3) middle part is provided with the via hole (5) coordinating with auxiliary rod (4), auxiliary rod (4) is provided with by right jig arm (3) right semi-ring (7) elastic compression elastic device on left semi-ring (6), auxiliary rod (4) end is provided with the locking member (8) of stube cable, uncovered shape is arranged in left jig arm (2) and right jig arm (3) upper end, left jig arm (2) lower end is connected with insulating bar (1).
2. outdoor breaker primary current transmission test assistor according to claim 1, it is characterized in that: described elastic device comprises the adjusting nut (9) that is screwed onto auxiliary rod (4) right-hand member, also comprise the right jig arm (3) that middle part arranges near left jig arm (2) elastic bending away from left jig arm (2), both ends.
3. outdoor breaker primary current transmission test assistor according to claim 1, it is characterized in that: described elastic device comprises the adjusting nut (9) that is screwed onto auxiliary rod (4) right-hand member, also comprise and being sleeved on auxiliary rod (4) and by right jig arm (3) and left jig arm (2) elastic compression spring together.
4. according to the outdoor breaker primary current transmission test assistor described in the arbitrary claim of claim 1-3, it is characterized in that: on left semi-ring (6) inwall, be evenly equipped with the cone piece (11) that the semi-ring ring heart extends left.
5. outdoor breaker primary current transmission test assistor according to claim 4, it is characterized in that: the switch (12) that the semi-ring ring heart extends is left installed on the left semi-ring (6) between cone piece (11), left jig arm (2) bottom is provided with the battery case (14) of splendid attire battery (13), and the pilot lamp (15) that forms current supply circuit with battery (13), switch (12) is installed on battery case (14).
6. outdoor breaker primary current transmission test assistor according to claim 5, is characterized in that: described insulating bar (1) comprises the bar section (16) that some head and the tail are screwed together.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610114249.4A CN105548618A (en) | 2013-10-23 | 2013-10-23 | Connecting device for power system current transmission test |
| CN201310502286.9A CN103558420B (en) | 2013-10-23 | 2013-10-23 | Outdoor breaker primary current transmission test assistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310502286.9A CN103558420B (en) | 2013-10-23 | 2013-10-23 | Outdoor breaker primary current transmission test assistor |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610114250.7A Division CN105652042A (en) | 2013-10-23 | 2013-10-23 | Outdoor test assist device for electric power overhaul |
| CN201610114249.4A Division CN105548618A (en) | 2013-10-23 | 2013-10-23 | Connecting device for power system current transmission test |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103558420A true CN103558420A (en) | 2014-02-05 |
| CN103558420B CN103558420B (en) | 2016-04-13 |
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310502286.9A Expired - Fee Related CN103558420B (en) | 2013-10-23 | 2013-10-23 | Outdoor breaker primary current transmission test assistor |
| CN201610114249.4A Pending CN105548618A (en) | 2013-10-23 | 2013-10-23 | Connecting device for power system current transmission test |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610114249.4A Pending CN105548618A (en) | 2013-10-23 | 2013-10-23 | Connecting device for power system current transmission test |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN103558420B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104198777A (en) * | 2014-09-26 | 2014-12-10 | 国家电网公司 | Pluggable wire clip |
| CN105372051A (en) * | 2015-11-27 | 2016-03-02 | 广东电网有限责任公司电力科学研究院 | Detection device of mechanical characteristics of linear-rotary dual-purpose breaker |
| CN105445504A (en) * | 2015-12-04 | 2016-03-30 | 国家电网公司 | Junction device for high voltage line |
| CN106290998A (en) * | 2016-07-29 | 2017-01-04 | 国网河北省电力公司电力科学研究院 | A kind of extra-high voltage transformer partial discharge test lead's insulation support |
| CN106545500A (en) * | 2016-12-13 | 2017-03-29 | 广东瑞荣泵业有限公司 | Submersible pump ball float lifts assistor |
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| US5422718A (en) * | 1993-05-10 | 1995-06-06 | The Center For Innovative Technology | Elastic-part immersion cell for analyzing microstructures in materials |
| CN202308367U (en) * | 2011-11-03 | 2012-07-04 | 上海佳能电力实业有限公司 | Clamping wire clamp used for short circuit grounding protection |
| CN202564587U (en) * | 2012-05-02 | 2012-11-28 | 北京市电力公司 | Wire end clip |
| CN203774489U (en) * | 2013-10-23 | 2014-08-13 | 国网山东高密市供电公司 | Primary current transmission test assist device for outdoor breaker |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5733372A (en) * | 1980-08-06 | 1982-02-23 | Mitsubishi Electric Corp | Large current equivalent tester of current limiting fuse |
| CN101441247B (en) * | 2007-11-19 | 2013-03-27 | 施耐德电器工业公司 | Automatic device for circuit breaker short circuit combining and separating tests |
| CN201413342Y (en) * | 2009-04-20 | 2010-02-24 | 武汉特试特电气有限公司 | Heavy-current clamp |
| CN103353542B (en) * | 2013-06-24 | 2016-04-20 | 国家电网公司 | Lightning arrester three-phase detects wire clamp simultaneously |
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2013
- 2013-10-23 CN CN201310502286.9A patent/CN103558420B/en not_active Expired - Fee Related
- 2013-10-23 CN CN201610114249.4A patent/CN105548618A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5422718A (en) * | 1993-05-10 | 1995-06-06 | The Center For Innovative Technology | Elastic-part immersion cell for analyzing microstructures in materials |
| CN202308367U (en) * | 2011-11-03 | 2012-07-04 | 上海佳能电力实业有限公司 | Clamping wire clamp used for short circuit grounding protection |
| CN202564587U (en) * | 2012-05-02 | 2012-11-28 | 北京市电力公司 | Wire end clip |
| CN203774489U (en) * | 2013-10-23 | 2014-08-13 | 国网山东高密市供电公司 | Primary current transmission test assist device for outdoor breaker |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104198777A (en) * | 2014-09-26 | 2014-12-10 | 国家电网公司 | Pluggable wire clip |
| CN105372051A (en) * | 2015-11-27 | 2016-03-02 | 广东电网有限责任公司电力科学研究院 | Detection device of mechanical characteristics of linear-rotary dual-purpose breaker |
| CN105445504A (en) * | 2015-12-04 | 2016-03-30 | 国家电网公司 | Junction device for high voltage line |
| CN106290998A (en) * | 2016-07-29 | 2017-01-04 | 国网河北省电力公司电力科学研究院 | A kind of extra-high voltage transformer partial discharge test lead's insulation support |
| CN106545500A (en) * | 2016-12-13 | 2017-03-29 | 广东瑞荣泵业有限公司 | Submersible pump ball float lifts assistor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105548618A (en) | 2016-05-04 |
| CN103558420B (en) | 2016-04-13 |
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