CN105548618A - Connecting device for power system current transmission test - Google Patents
Connecting device for power system current transmission test Download PDFInfo
- Publication number
- CN105548618A CN105548618A CN201610114249.4A CN201610114249A CN105548618A CN 105548618 A CN105548618 A CN 105548618A CN 201610114249 A CN201610114249 A CN 201610114249A CN 105548618 A CN105548618 A CN 105548618A
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- jig arm
- ring
- semi
- clamping arm
- wire
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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
-
- 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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- General Physics & Mathematics (AREA)
- Measuring Leads Or Probes (AREA)
Abstract
The invention discloses a connecting device for a power system current transmission test. The connecting device comprises a left clamping arm and a right clamping arm, the lower end of the left clamping arm and the lower end of the right clamping arm are movably connected together, and a left half ring and a right half ring which are oppositely matched are arranged on the upper portion of the left clamping arm and the upper portion of the right clamping arm respectively. An auxiliary rod extending transversely is fixedly arranged in the middle of the left clamping arm, and an auxiliary hole matched with the auxiliary rod is formed in the middle of the right clamping arm. An elastic device for elastically pressing the right half ring on the left half ring through the right clamping arm is arranged on the auxiliary rod, and a locking piece connected with a cable is arranged at the end of the auxiliary rod. The upper end of the left clamping arm and the upper end of the right clamping arm are arranged to be open, and the lower end of the left clamping arm is fixedly connected with an insulation rod. The connecting device has the advantages that the structure is reasonable, wiring is convenient and fast, climbing is not needed, operation is safe and easy, the work difficulty of electric power maintenance personnel can be lowered, and the work efficiency of the maintenance personnel can be improved.
Description
Technical field
The present invention relates to a kind of electric system electric current transmission test coupling arrangement.
Background technology
When carrying out relay protection correlation test to Outdoor Trusses For Transformer Substation isolating switch, need a part line from isolating switch both sides and simulate interpolation electric current to test.Owing to there is no special termination or experiment auxiliary device, at present, general adopt by relay protection personnel by climbing insulating ladder, test lead folder to the mode at wire position, isolating switch both sides is carried out hanging wire.There is following shortcoming in which: 1, the general distance in isolating switch wire position ground is more than 3 meters, and therefore personnel ascend a height and carry out operation, not only ascends a height and high-altitude application danger, and there is high-altitude electric shock hidden danger; 2, isolating switch both sides wire position, can not carry out test wire simultaneously fix, at least need twice ascend operation, therefore, waste time and energy, and indirectly result in work efficiency low, extends 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, without the need to ascending a height, and handling safety, simple electric system electric current transmission test coupling arrangement.
The design feature of this electric system electric current transmission test coupling arrangement is: comprise left jig arm and right jig arm that lower end is movably connected, left jig arm and right jig arm top are arranged respectively to the left semi-ring that coordinates in opposite directions and right semi-ring, the auxiliary rod of horizontal expansion is installed with in the middle part of left jig arm, the via hole coordinated with auxiliary rod is provided with in the middle part of right jig arm, auxiliary rod is provided with right semi-ring elastic compression elastic device on left semi-ring by right jig arm, 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, fast by extension Automatic-clamping structure, without the need to ascending a height, and handling safety, simple.
Extension Automatic-clamping structure mainly comprises the left jig arm and right jig arm that are arranged on insulating bar upper end, and left jig arm and right jig arm top are arranged respectively to left semi-ring and right semi-ring, and also comprising can by the elastic device of left semi-ring 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 electric system electric current transmission test coupling arrangement can be sent to eminence, not only avoid the operation of climbing insulating ladder, avoid ascend a height dangerous and electric shock hidden danger, also avoid the hidden danger of close contact wire, effectively ensure that processing safety.Left jig arm and right jig arm are the critical pieces realizing clamping function, and both are movably connected lower end, and therefore both mutually can swing near or be separated centered by the connecting portion of lower end, the action also just realizing clamping or open.Described elastic device is arranged on the auxiliary rod that sets firmly in the middle part of left jig arm, and right jig arm is provided with the via hole coordinated 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 action of the elastic means, right jig arm and left jig arm just can together with elastic clampings.
Left jig arm and right jig arm top are arranged respectively to left semi-ring and right semi-ring, and left semi-ring and right semi-ring are arranged in opposite directions.Like this, when left jig arm and right jig arm expansion action, left semi-ring and right semi-ring mutually away from, be also expansion action.When left jig arm and right jig arm are pinching action, left semi-ring and right semi-ring snap together in opposite directions, form a complete ring-type.For convenience of describing, this ring is called 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 ensure the electrical connection of clamping ring and wire, the locking action to wire can also be played, can not get loose easily after being clamped ring clamping to make wire, effectively ensure that 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 describing, is referred to as uncovered portion.After arranging like this, when needs clamping isolating switch sidepiece wire, just do not need to control left jig arm and right jig arm does expansion action, namely do not need to control left semi-ring and right semi-ring does expansion action yet, also need be only that isolating switch avris wire is aimed in uncovered portion by the front end of left jig arm and right jig arm, and push hard guiding line.Because left jig arm and right jig arm are together with elastic clamping under the action of the elastic means, therefore, when firmly uncovered portion being pushed to isolating switch sidepiece wire, wire can overcome the compression of elastic device or clamps elastic force and strut uncovered portion gradually, also namely 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 under the elastic force effect of elastic device, and elasticity is clamped on outside wire, serves the effect that left jig arm and right jig arm are reliably electrically connected with wire.Because auxiliary rod end is electrically connected with cable by locking member, so now cable keeps reliable electrical connection by auxiliary rod, left jig arm and right jig arm and wire, also namely achieve the object of wiring or hanging wire.In brief, when needing wiring, hold insulating bar on the ground and wire is pushed clamping ring along uncovered portion, operate very simple.Contrary, after experiment, when needing connect other wires or need to remove this electric system electric current transmission test coupling arrangement, only need hold on insulating bar and pull downwards, wire can be made to skid off along clamping ring upper port, operate very simple.
As a kind of implementation, described elastic device comprises the adjusting nut being screwed onto auxiliary rod right-hand member, also comprises the right jig arm that middle part is arranged near left jig arm elastic bending away from left jig arm, both ends.
Right jig arm is arranged to middle part away from left jig arm, both ends near left jig arm, left jig arm is arranged to arc or " C " shape exactly.Because right jig arm is elastic bending, therefore, right jig arm is structurally just provided with elasticity.The adjusting nut that auxiliary rod right-hand member is spirally connected can compress right jig arm by the mode of precession on auxiliary rod, namely adjusts the elastic compression degree of right jig arm and left jig arm, and freely can adjust according to actual wire thickness and other requirements, versatility is stronger.
As another kind of implementation, described elastic device comprises the adjusting nut being screwed onto auxiliary rod right-hand member, also comprises being sleeved on auxiliary rod and by the spring of right jig arm together with left jig arm elastic compression.
By precession and screw out adjusting nut, the elastic compression degree of the right jig arm of spring compression and left jig arm can be adjusted, its principle of work and method of operating similar to the above, no longer carefully state at this.
As improvement, left semi-ring inwall is evenly equipped with the cone block that the semi-ring ring heart left extends.
After left semi-ring inwall arranges cone block, when left semi-ring clamping wire, be exactly respectively bore block clamping wire, instead of left semi-ring inwall clamping wire.During left semi-ring inwall clamping wire, often on left semi-ring inwall certain a bit or very little area and conductive contact, that is, replace original single-point or small size contact by Multi-contact or multiple spot clamping.Like this, count with regard to the contact adding left semi-ring left semi-ring inwall and wire when clamping wire, actually serve the effect increasing left semi-ring inwall and conductive contact area, ensure that the reliability of electrical connection, improve wiring or hanging wire effect.Block will be bored extended to the ring heart by left semi-ring inwall, each cone block can be made impartial to the force of wire, and so just can ensure cone block as much as possible energy clamping wire simultaneously, and contribute to improving electrical connection effect.
As further improvement, the left semi-ring between cone block is provided with the switch that the semi-ring ring heart left extends, left jig arm bottom is provided with the battery case of splendid attire battery, battery case is provided with the pilot lamp forming current supply circuit with battery, switch.
Left semi-ring inwall between cone block arranges switch, each cone block can be made to be that the actuating length of switch carries out spacing.Also namely when clamping wire; wire can only pull switch to position corresponding to cone block top, pull switch action can not be continued, so not only can guarantee reliable trigger switch; and be unlikely excessive trigger switch, serve the protective effect to switch machine structure.Arrange consistent by the bearing of trend of switch with the bearing of trend of cone block, when clamping wire, wire can apply extruding force along the regular event track of switch to switch, effectively prevent deflection problem during extruding, ensure that 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 that pilot lamp is powered by switch connection, and pilot lamp is luminous, reminds people's reliable grip wire, can test, not only directly perceived but also facilitate.
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 by some bar section head and the tail form, freely can adjusts the bar hop count amount be spirally connected according to actual needs, namely total length, until satisfy the demand, operate convenient.
In sum, adopt the electric system electric current transmission test coupling arrangement of this structure rational in infrastructure, easy-to-connect, fast, without the need to ascending a height, and handling safety, simple, contribute to reducing the work difficulty of electric power maintenance personnel and improving the work efficiency of maintainer.
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 block, 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 electric system electric current transmission test coupling arrangement comprises the left jig arm and right jig arm that lower end is movably connected, left jig arm and right jig arm top are arranged respectively to the left semi-ring that coordinates in opposite directions and right semi-ring, the auxiliary rod of horizontal expansion is installed with in the middle part of left jig arm, the via hole coordinated with auxiliary rod is provided with in the middle part of right jig arm, auxiliary rod is provided with right semi-ring elastic compression elastic device on left semi-ring by right jig arm, 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 the left jig arm 2 upwards extended, and left jig arm 2 lower end is hinged with the right jig arm 3 upwards extended.By the support progradation of insulating bar 1, other parts of this electric system electric current transmission test coupling arrangement can be sent to eminence, not only avoid the operation of climbing insulating ladder, avoid ascend a height dangerous and electric shock hidden danger, also avoid the hidden danger of close contact wire, effectively ensure that processing safety.Left jig arm and right jig arm are the critical pieces realizing clamping function, because both lower ends are hinged, therefore both mutually can swing near or be separated centered by the connecting portion of lower end, the action also just realizing clamping or open.Be installed with auxiliary rod 4 in the middle part of left jig arm 2, right jig arm 3 is provided with the via hole 5 coordinated with auxiliary rod 4, like this can so that right jig arm and left jig arm opposing oscillatory.Auxiliary rod 4 right-hand member is provided with elastic device, the Main Function of elastic device, is for left jig arm 2 and right jig arm 3 provide elastic clamping power.Like this, under the action of the elastic means, right jig arm 3 and left jig arm 2 just together with elastic clamping, can namely clamp the clamping force of isolating switch sidepiece wire.
Left jig arm 2 and right jig arm 3 top are arranged respectively to left semi-ring 6 and right semi-ring 7, and left semi-ring 6 and right semi-ring 7 are arranged in opposite directions.Like this, when left jig arm 2 and right jig arm 3 expansion action, left semi-ring 6 and right semi-ring 7 mutually away from, be also expansion action.When left jig arm and right jig arm are pinching action, left semi-ring 6 and right semi-ring 7 snap together in opposite directions, form a complete ring-type.For convenience of describing, this ring is called 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 ensure the electrical connection of clamping ring and wire, the locking action to wire can also be played, can not get loose easily after being clamped ring clamping to make wire, effectively ensure that the reliability of wiring or hanging 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 describing, be referred to as uncovered portion, in the present embodiment, uncovered portion is V-shaped.After arranging like this, when needs clamping isolating switch sidepiece wire, just do not need to control left jig arm 2 and right jig arm 3 does expansion action, namely do not need to control left semi-ring 6 and right semi-ring 7 does expansion action yet, also need be only that isolating switch avris wire is aimed in 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 and right jig arm 3 are together with elastic clamping under the action of the elastic means, therefore, when firmly uncovered portion being pushed to isolating switch sidepiece wire, wire can overcome the compression of elastic device or clamps elastic force and strut uncovered portion gradually, also namely 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 top.Now, clamping ring can under the elastic force effect of elastic device, and elasticity is clamped on outside wire, serves the effect that left jig arm 2 and right jig arm 3 are reliably electrically connected with wire.
Auxiliary rod 4 left end is provided with locking member 8, the cable of experiment and auxiliary rod 4 reliably can be electrically connected by locking member 8, so now cable will keep reliable electrical connection by auxiliary rod 4, left jig arm 2 and right jig arm 3 and wire, also namely achieve the object of wiring or hanging wire.In brief, when needing wiring, hold insulating bar on the ground and wire is pushed clamping ring along uncovered portion, operate very simple.Contrary, after experiment, when needing connect other wires or need to remove this electric system electric current transmission test coupling arrangement, only need hold on insulating bar and pull downwards, wire can be made to skid off along clamping ring upper port, operate very simple.
In the present embodiment, elastic device comprises the adjusting nut 9 being screwed onto auxiliary rod 4 right-hand member, also comprises the right jig arm that middle part is arranged near left jig arm elastic bending away from left jig arm, both ends.Right jig arm is arranged to middle part away from left jig arm, both ends near left jig arm, left jig arm is arranged to arc or " C " shape exactly.Because right jig arm is elastic bending, therefore, right jig arm is structurally just provided with elasticity.The adjusting nut 9 that auxiliary rod right-hand member is spirally connected can compress right jig arm by the mode of precession on auxiliary rod, namely adjusts the elastic compression degree of right jig arm and left jig arm, and freely can adjust according to actual wire thickness and other requirements, versatility is stronger.
When reality manufactures, also elastic device can be arranged to comprise the adjusting nut being screwed onto auxiliary rod right-hand member, and be sleeved on auxiliary rod and by the spring of right jig arm together with left jig arm elastic compression.This structure is comparatively simple, does not draw in figure.By precession and screw out adjusting nut, the elastic compression degree of the right jig arm of spring compression and left jig arm can be adjusted, its principle of work and method of operating similar to the above, no longer carefully state at this.
In the present embodiment, left semi-ring 6 inwall is evenly equipped with the cone block 11 that the semi-ring ring heart left extends.When left semi-ring 6 clamping wire, be exactly respectively bore block 11 clamping wire, instead of left semi-ring inwall clamping wire.During left semi-ring inwall clamping wire, often on left semi-ring inwall certain a bit or very little area and conductive contact, that is, replace original single-point or small size contact by Multi-contact or multiple spot clamping.Like this, count with regard to the contact adding left semi-ring left semi-ring inwall and wire when clamping wire, actually serve the effect increasing left semi-ring inwall and conductive contact area, ensure that the reliability of electrical connection, improve wiring or hanging wire effect.Block will be bored extended to the ring heart by left semi-ring inwall, each cone block can be made impartial to the force of wire, and so just can ensure cone block as much as possible energy clamping wire simultaneously, and contribute to improving electrical connection effect.
Left semi-ring 6 between cone block 11 is provided with the switch 12 that the semi-ring ring heart left extends, left jig arm bottom is provided with the battery case 14 of splendid attire battery 13, battery case 14 is provided with the pilot lamp 15 forming current supply circuit with battery 13, switch 11.Because switch 12 is arranged in the middle of cone block 11, so each cone block 11 can carry out spacing for the actuating length of switch 12.Also namely when clamping wire; wire can only arrive position corresponding to cone block 11 top by pull switch 12, can not continue pull switch action, so not only can guarantee reliable trigger switch; and be unlikely excessive trigger switch, serve the protective effect to switch 12 physical construction.Arrange consistent by the bearing of trend of switch with the bearing of trend of cone block, when clamping wire, wire can apply extruding force along the regular event track of switch 12 to switch, effectively prevent deflection problem during extruding, ensure that 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 the loop that now battery is powered to pilot lamp 15 is connected by switch 12, and pilot lamp 15 is luminous, remind people's reliable grip wire, can test, not only directly perceived but also facilitate.
In the present embodiment, described insulating bar 1 comprises the bar section 16 that some head and the tail are screwed together, and freely can adjust bar section 16 quantity be spirally connected so according to actual needs, namely total length, until satisfy the demand, operate convenient.
Claims (3)
1. an electric system electric current transmission test coupling arrangement, it is characterized in that: comprise left jig arm (2) and right jig arm (3) that lower end is movably connected, left jig arm (2) and right jig arm (3) top are arranged respectively to the left semi-ring (6) that coordinates in opposite directions and right semi-ring (7), 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) coordinated with auxiliary rod (4), auxiliary rod (4) is provided with right semi-ring (7) elastic compression elastic device on left semi-ring (6) by right jig arm (3), 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), left semi-ring (6) inwall is evenly equipped with the cone block (11) that the semi-ring ring heart left extends.
2. electric system electric current transmission test coupling arrangement according to claim 1, it is characterized in that: the left semi-ring (6) between cone block (11) is provided with the switch (12) that the semi-ring ring heart left extends, left jig arm (2) bottom is provided with the battery case (14) of splendid attire battery (13), battery case (14) is provided with the pilot lamp (15) forming current supply circuit with battery (13), switch (12).
3. electric system electric current transmission test coupling arrangement according to claim 2, is characterized in that: described insulating bar (1) comprises the bar section (16) that some head and the tail are screwed together.
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 Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310502286.9A Division CN103558420B (en) | 2013-10-23 | 2013-10-23 | Outdoor breaker primary current transmission test assistor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105548618A true CN105548618A (en) | 2016-05-04 |
Family
ID=50012722
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 Before (1)
| 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 |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN103558420B (en) |
Families Citing this family (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 |
| CN106545500B (en) * | 2016-12-13 | 2023-07-14 | 广东瑞荣泵业有限公司 | Floating ball lifting auxiliary device for submersible electric pump |
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| JPS5733372A (en) * | 1980-08-06 | 1982-02-23 | Mitsubishi Electric Corp | Large current equivalent tester of current limiting fuse |
| CN101441247A (en) * | 2007-11-19 | 2009-05-27 | 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 |
| CN103353542A (en) * | 2013-06-24 | 2013-10-16 | 国家电网公司 | Lead wire clamp for simultaneous detection of three phases of lightning arrester |
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| Publication number | Priority date | Publication date | Assignee | Title |
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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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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
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS5733372A (en) * | 1980-08-06 | 1982-02-23 | Mitsubishi Electric Corp | Large current equivalent tester of current limiting fuse |
| CN101441247A (en) * | 2007-11-19 | 2009-05-27 | 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 |
| CN103353542A (en) * | 2013-06-24 | 2013-10-16 | 国家电网公司 | Lead wire clamp for simultaneous detection of three phases of lightning arrester |
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| 柏青 等: "基于直线电机驱动的偏心夹紧装置", 《轻工机械》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103558420B (en) | 2016-04-13 |
| CN103558420A (en) | 2014-02-05 |
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Application publication date: 20160504 |