CN105629141B - A kind of method of vacuum tube of vacuum breaker special project Insulation Test - Google Patents
A kind of method of vacuum tube of vacuum breaker special project Insulation Test Download PDFInfo
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- CN105629141B CN105629141B CN201511029082.3A CN201511029082A CN105629141B CN 105629141 B CN105629141 B CN 105629141B CN 201511029082 A CN201511029082 A CN 201511029082A CN 105629141 B CN105629141 B CN 105629141B
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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
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
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- General Physics & Mathematics (AREA)
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
A kind of method of vacuum tube of vacuum breaker special project Insulation Test belongs to experimental rig field.Gate stand is arranged in it on moveable platform, fixed clamping arm is set in gate stand, mobile clamping limb and a left side, right horizontal clamping limb, fixture is gripped by setting longitudinal stretching stationary fixture and level, by lever principle moving vacuum tube of vacuum breaker, stationary contact pulls open, it relies in longitudinal graduated scale precise measurement vacuum bubbles and moves, between static contact open away from, the pressure test to single vacuum tube of vacuum breaker under " separating brake " state can be realized in turn, whether intact it can be detected its insulation performance before the installation of new vacuum bubbles, improve vacuum circuit breaker repairs examination efficiency, reduce the duplication of labour；Reduce plant maintenance time, maintenance cost and power failure operation time.It can be widely used for quality restriction and the field test field of single vacuum tube of vacuum breaker.
Description
Technical field
The invention belongs to experimental rig field more particularly to a kind of special Insulation Tests for vacuum tube of vacuum breaker
Method.
Background technique
The dielectric of vacuum circuit breaker contact gap after its arc-extinguishing medium and arc extinguishing is gained the name due to be all high vacuum, is had
There is the advantages of small in size, light-weight, not have to maintenance suitable for frequent operation, arc extinguishing, using more universal in power distribution network.
Vacuum circuit breaker mainly includes three parts: vacuum interrupter (being commonly called as vacuum bubbles), electromagnetism or spring operating mechanism,
Bracket and other component.
There are three single vacuum interrupter components for installation on vacuum circuit breaker, respectively correspond A, B, C phase of three phase mains.
Three vacuum interrupter components synchronize that make " closed " or " separation " dynamic under the action of breaker electromagnetism or spring operating mechanism
Make, forms the " on " or "off" operating function to three phase mains.
Vacuum circuit breaker is in daily operational process, with the long-time service of vacuum interrupter, in vacuum extinction room
The vacuum degree in portion starts to be gradually reduced, and the dielectric strength between dynamic and static contact can also decline therewith.When its dielectric strength declines
After to a certain extent, it will cause breaker in separating brake can not arc extinguishing serious consequence, thus pressure test is vacuum circuit breaker
One important tests content of device.
It is provided in power test regulation, vacuum circuit breaker should all carry out ac voltage withstanding test in handover or routine test.
However under existing working environment, " separating brake " pressure resistance examination of each vacuum interrupter component can not be individually carried out
It tests.That is, can not go out to the vacuum under single component state when vacuum interrupter is in the state being removed as single component
Arc chamber carries out the pressure test that dynamic and static contact is under " separating brake " state, and (" separating brake " state refers to that the dynamic and static contact is in
" separation " state and " separation " distance meet the distance of national regulations).
Since this " separation " state is only mounted on-board the circuit breaker in vacuum interrupter, dynamic and static contact both ends point
It is not fixed on the electromagnetism or spring operating mechanism of breaker, under the external force of electromagnetism or spring operating mechanism, vacuum
The dynamic and static contact of arc-chutes is strongly pulled open, and is in " separation " state, and separating distance meets the state of national regulations distance
Under, it is just able to achieve, only in this case, the pressure test under " separating brake " state could be carried out to it.
Therefore, it is needed when non-three phase (there was only a phase or two-phase i.e. in three-phase) vacuum interrupter defective insulation occurs for breaker
The when marquis of single vacuum interrupter component is replaced, we can not tell the single new vacuum extinction needed replacing up in advance
The quality of room component, it is necessary to new vacuum interrupter just be can be carried out into pressure test after the installation is completed, once new vacuum extinction occurs
There is also when insulation defect for room, it will the duplication of labour for causing repeated disassembled and assembled seriously affects working efficiency.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of method of vacuum tube of vacuum breaker special project Insulation Test,
It carries out horizontal clamping by lever construction and principle, to vacuum tube of vacuum breaker, to the upper and lower of vacuum tube of vacuum breaker
It holds (i.e. the dynamic and static contacts of vacuum bubbles) to carry out longitudinal extension, realizes the independent vacuum interrupter that will be fixed on insulated platform
Dynamic and static contact pull open it is specified open away under, carry out " separating brake " state under pressure test requirement；It is realized individually to list
A vacuum interrupter carries out " separating brake " pressure test.
The technical scheme is that a kind of method of vacuum tube of vacuum breaker special project Insulation Test is provided, it is described
Special Insulation Test includes Insulation Test of the vacuum tube of vacuum breaker under " separating brake " state, it is characterized in that:
It is arranged one for carrying out the Insulation Test platform of special Insulation Test to single vacuum tube of vacuum breaker component；
The Insulation Test platform includes a moveable platform；One gate stand is set on moveable platform；It is vertical in gate
In frame, a longitudinal screw can be rotatably set；In the two sides of longitudinal screw, two longitudinally guiding slide bars are set；It is vertical in gate
The middle part of frame can be rotatably set left and right two transverse screws；
In the lower part of gate stand, one fixed clamping arm is set；Being arranged one at the middle part of gate stand can be along the left side
The left clamp arm assembly of the left and right movement of transverse screw and can be along the left and right right clamp arm assembly moved of the right transverse screw；?
The top of gate stand, which is arranged one, to move clamping limb along what the longitudinal screw and longitudinally guiding slide bar vertically moved；
Between the longitudinal screw and mobile clamping limb, between the left transverse screw and left clamp arm assembly, with
And between the right transverse screw and right clamp arm assembly, respectively corresponds and constitute one group of screw rod-nut screw kinematic pair；
The front end of the fixed clamping arm and the lower end of the vacuum tube of vacuum breaker are affixed；The mobile clamping limb
Front end and the upper end of the vacuum tube of vacuum breaker are affixed；The front end of the left and right clamp arm assembly and the vacuum circuit breaker
The ontology clamping contact of device vacuum bubbles；
The front end of the fixed clamping arm, mobile clamping limb and left and right clamp arm assembly, the level away from the gate stand
Distance, greater than the safe distance of the vacuum tube of vacuum breaker operational voltage level；
It is true to be greater than the vacuum circuit breaker for horizontal distance of the vacuum tube of vacuum breaker ontology away from the gate stand
The safe distance of vacuole operational voltage level；
The upper and lower end of the vacuum tube of vacuum breaker is distinguished with the test voltage output end of Withstand test device respectively
It is correspondingly connected with；
On the top of the longitudinal screw, it is provided with longitudinal screw driving runner；
In the outboard end of the left transverse screw and right transverse screw, respectively corresponds and be provided with left transverse screw and right transverse direction
The driving runner of screw rod；
Between the mobile clamping limb and the gate stand, it is provided with longitudinal graduated scale；
When carrying out Insulation Test of the vacuum tube of vacuum breaker under " separating brake " state, longitudinal spiral shell is rotated
Bar drives runner, adjusts longitudinal height of the mobile clamping limb upper end fixing seat, so that the vacuum tube of vacuum breaker
Upper/lower terminal is just fixed on the upper end fixing seat of mobile clamping limb and the lower end fixing seat of fixed clamping arm by correspondence respectively
Between, with screw by the upper and lower end of the vacuum tube of vacuum breaker upper end fixing seat and fixation with mobile clamping limb respectively
The corresponding fastening of the lower end fixing seat of clamping limb is affixed；By the upper and lower end of the vacuum tube of vacuum breaker respectively with pressure test
The test voltage output end of device is connected respectively；
Then, the longitudinal screw driving runner is continued to rotate, the number of altitude of longitudinal graduated scale is observed, adjusts
Longitudinal height of the mobile clamping limb upper end fixing seat so that the upper end of the vacuum tube of vacuum breaker be pulled upwardly out/
It is mobile, when the spacing between the vacuum tube of vacuum breaker upper/lower terminal pull open test specification defined it is specified open away from
Afterwards, pressure test of the single vacuum tube of vacuum breaker under " separating brake " state can be carried out according to corresponding testing regulations.
Specifically, the screw thread of left and right two transverse screws is oppositely arranged.
Specifically, fixed support leg is provided in the front end of the moveable platform, after the moveable platform
End is provided with rotating wheel.
Specifically, being provided with handle on the top of the gate stand.
Specifically, the front end of the fixed clamping arm, mobile clamping limb and left and right clamp arm assembly, towards the door
The same side of type stand is arranged.
Specifically, being respectively arranged with the vacuum with fixing threaded hole in the front end of the fixed clamping arm, mobile clamping limb
Breaker vacuum bulb upper and lower end fixing seat, the upper and lower end of the vacuum tube of vacuum breaker, through bolt respectively with it is described it is upper,
Lower end fixing seat corresponds to affixed.
Further, the fixing threaded hole is to fix the adjustable long hole in position or elliptical aperture, or fixed position is non-adjustable
Circular hole.
Compared with the prior art, the invention has the advantages that
1. the dynamic and static contact end of vacuum tube of vacuum breaker is pulled open to the rule for meeting code requirement by lever principle
Surely it opens away from and then realizing the pressure test to single vacuum tube of vacuum breaker under " separating brake " state；
2. being pacified by the realization for individually carrying out " separating brake " pressure test to single vacuum tube of vacuum breaker in new vacuum bubbles
Whether before dress, it is intact to can be detected its insulation performance, reduces repeated work rate；
3. the implementation of the technical program, improve vacuum circuit breaker repairs examination efficiency, reduces the plant maintenance time, maintenance
Cost reduces the power failure operation time, also improves arrester DC leakage test data precision and comparativity.
Detailed description of the invention
Fig. 1 is the side structure schematic view of Insulation Test platform of the present invention；
Fig. 2 is the overlooking structure diagram of Insulation Test platform of the present invention；
Fig. 3 is the forward sight structural schematic diagram of Insulation Test platform of the present invention.
1 is moveable platform in figure, and 2 be gate stand, and 3 be longitudinal screw, and 3-1 is that longitudinal screw drives runner, and 4-1 is
Left longitudinally guiding slide bar, 4-2 are right longitudinally guiding slide bar, and 5-1 is left transverse screw, and 5-11 is that the driving of left transverse screw turns
Wheel, 5-2 are right transverse screw, and 5-21 is the driving runner of right transverse screw, and 6 be fixed clamping arm, and 7-1 is left clamping limb group
Part, 7-2 are right clamp arm assembly, and 8 be mobile clamping limb, and 9 be vacuum tube of vacuum breaker, and 10 be longitudinal graduated scale.
Specific embodiment
The present invention will be further described with reference to the accompanying drawing.
In Fig. 1, Fig. 2 and Fig. 3, technical solution of the present invention provides a kind of vacuum tube of vacuum breaker special project insulation examination
The method tested, the special Insulation Test include Insulation Test of the vacuum tube of vacuum breaker under " separating brake " state；It is sent out
Bright point is:
One moveable platform 1 is set；One gate stand 2 is set on moveable platform；In gate stand, it can turn
A piece longitudinal screw 3 is set dynamicly；In the two sides of longitudinal screw, two left and right longitudinally guiding slide bar 4-1,4-2 are set；In door
The middle part of type stand can be rotatably set left and right two transverse screws 5-1,5-2；
In the lower part of gate stand, a fixed clamping arm 6 is set；
At the middle part of gate stand, setting one can be along the left and right left clamp arm assembly 7-1 moved of the left transverse screw
With can be along the left and right right clamp arm assembly 7-2 moved of the right transverse screw；
On the top of gate stand, setting one can be moved along what the longitudinal screw and longitudinally guiding slide bar vertically moved
Clamping limb 8；
Between the longitudinal screw and mobile clamping limb, between the left transverse screw and left clamp arm assembly, with
And between the right transverse screw and right clamp arm assembly, the spiral fortune that one group of composition is made of screw rod-nut is respectively corresponded
Dynamic pair；
The front end of the fixed clamping arm, it is affixed with the lower end of the vacuum tube of vacuum breaker 9；
The front end of the mobile clamping limb, it is affixed with the upper end of the vacuum tube of vacuum breaker；
The front end of the left and right clamp arm assembly, the ontology clamping contact with the vacuum tube of vacuum breaker；
The front end of the fixed clamping arm, mobile clamping limb and left and right clamp arm assembly, the level away from the gate stand
Distance, greater than the safe distance of the vacuum tube of vacuum breaker operational voltage level；
It is true to be greater than the vacuum circuit breaker for horizontal distance of the vacuum tube of vacuum breaker ontology away from the gate stand
The safe distance of vacuole operational voltage level；
The upper and lower end of the vacuum tube of vacuum breaker is distinguished with the test voltage output end of Withstand test device respectively
It is correspondingly connected with；
On the top of the longitudinal screw, it is provided with longitudinal screw driving runner 3-1；
In the outboard end of the left transverse screw and right transverse screw, respectively corresponds and be provided with left transverse screw and right transverse direction
Driving runner 5-11,5-21 of screw rod；
Between the mobile clamping limb and the gate stand, it is provided with longitudinal graduated scale 10.
The screw thread on the left side, right two transverse screws is oppositely arranged, in order to the left and right clamp arm assembly is opposite or
It is moved away from.
The front end of the moveable platform is provided with fixed support leg 1-1, is set in the rear end of the moveable platform
It is equipped with rotating wheel 1-2.It, only need to be by the handle 2-1 on gate stand top, by gate when entire moveable platform needs mobile
Stand tilts backwards, so that the fixed support foot of moveable platform leaves ground, it can be easily by moveable platform
Rotating wheel, mobile entire Insulation Test platform.
In actual use, the longitudinal screw driving runner is rotated, the mobile clamping limb upper end is adjusted and fixes
Longitudinal height of seat, so that the upper/lower terminal of the vacuum tube of vacuum breaker, is just fixed on the movement by correspondence respectively
Between the upper end fixing seat of clamping limb and the lower end fixing seat of the fixed clamping arm, with screw by the vacuum circuit breaker vacuum
The upper and lower end of bubble is corresponding with the lower end fixing seat of the upper end fixing seat of the mobile clamping limb and the fixed clamping arm tight respectively
Gu affixed.
It is required according to the wiring of vacuum tube of vacuum breaker pressure test, by the upper and lower of the vacuum tube of vacuum breaker
End is connected respectively with the test voltage output end of Withstand test device respectively；It can be carried out according to conventional testing regulations
Pressure test under " combined floodgate " state of single vacuum tube of vacuum breaker.
Alternatively, the longitudinal screw driving runner that rotation is described, adjusts the longitudinal high of the mobile clamping limb upper end fixing seat
Degree, so that the upper/lower terminal of the vacuum tube of vacuum breaker, is just fixed on the upper of the mobile clamping limb by correspondence respectively
It holds between fixing seat and the lower end fixing seat of the fixed clamping arm, with screw by the upper and lower of the vacuum tube of vacuum breaker
Fastening corresponding with the lower end fixing seat of the upper end fixing seat of the mobile clamping limb and the fixed clamping arm is affixed respectively at end；It will
The upper and lower end of the vacuum tube of vacuum breaker is connected respectively with the test voltage output end of Withstand test device respectively；
Then, the longitudinal screw driving runner is continued to rotate, the number of altitude of longitudinal graduated scale is observed, adjusts
Longitudinal height of the mobile clamping limb upper end fixing seat, so that upper end (the i.e. vacuum circuit breaker of the vacuum tube of vacuum breaker
The moving contact end of device vacuum bubbles) it is pulled upwardly out/moves, when (i.e. vacuum between the vacuum tube of vacuum breaker upper/lower terminal
Between the dynamic and static contact of bubble) spacing pull open the specified of test specification defined and open away from rear, can be advised according to corresponding test
Journey carries out pressure test of the single vacuum tube of vacuum breaker under " separating brake " state.
Technical solution of the present invention, the dynamic and static contact of single vacuum tube of vacuum breaker can be pulled open by providing one kind
To the specified tool opened away from and can be carried out pressure test, " separating brake " shape individually is carried out to single vacuum tube of vacuum breaker to realize
Pressure test under state, whether before the installation of new vacuum tube of vacuum breaker, it is intact to can be detected its insulation performance, reduces weight
Multiple work ratio.
Since arrester shape is similar to vacuum bubbles and Insulation Test wiring is close, therefore the Insulation Test platform can equally be transported
It uses on the DC leakage test of arrester, becomes a kind of multi-functional and efficient test instrument.
In the Insulation Test of arrester and the pressure test of independent vacuum bubbles, insulation against ground is a key factor, this
In technical solution, the front end of the fixed clamping arm, mobile clamping limb and left and right clamp arm assembly, away from the gate stand
Horizontal distance greater than the safe distance of the vacuum tube of vacuum breaker operational voltage level, and then ensure that the vacuum is disconnected
Horizontal distance of the road device vacuum bubbles ontology away from the gate stand, greater than the vacuum tube of vacuum breaker operational voltage level
Safe distance meets the requirement of insulation against ground in related experiment regulation.
The implementation of the technical program realizes the independent vacuum bubbles that will be fixed on insulated platform by lever principle
Dynamic and static contact pulls open specified open away from the lower requirement for carrying out pressure test.Switch is small with needing for independent vacuum bubbles to be mounted on before
Che Shanghou just can be carried out the traditional approach of the pressure test under " separating brake " state compared to haveing a qualitative leap, and efficiently solve original
First individually vacuum bubbles component can not carry out the problem of " separating brake " pressure test, no matter from plant maintenance time, maintenance cost all bodies
The advantage of the specific purpose tool is showed.Furthermore the insulated platform can meet " separating brake " test and lightning arrester insulation examination of vacuum bubbles simultaneously
Test the requirement of support.
The technical program is equipped with longitudinal measurer or longitudinal graduated scale using mechanical drawing mode, can accurately measure vacuum
In arc-chutes static contact and moving contact open away from.Its stationary fixture (including fixed clamping arm, mobile clamping limb and left and right water
Flat clamping limb) using the fixed mode longitudinally gripped, while ensuring to stablize, it ensure that entire insulated platform has foot
Enough dielectric strengths.
It invention can be widely used in quality restriction and the field test field of single vacuum tube of vacuum breaker.
Claims (7)
1. a kind of method of vacuum tube of vacuum breaker special project Insulation Test, the special Insulation Test includes vacuum circuit breaker
Insulation Test of the vacuum bubbles under " separating brake " state, it is characterized in that:
It is arranged one for carrying out the Insulation Test platform of special Insulation Test to single vacuum tube of vacuum breaker component；
The Insulation Test platform includes a moveable platform；One gate stand is set on moveable platform；In door
In type stand, a longitudinal screw can be rotatably set；In the two sides of longitudinal screw, two longitudinally guiding slide bars are set；In door
The middle part of type stand can be rotatably set left and right two transverse screws；
In the lower part of gate stand, one fixed clamping arm is set；
Being arranged one at the middle part of gate stand can be along the left and right left clamp arm assembly moved of the left transverse screw and can be along institute
State the right clamp arm assembly of the left and right movement of right transverse screw；
Clamping can be moved along what the longitudinal screw and longitudinally guiding slide bar vertically moved by being arranged one on the top of gate stand
Arm；
Between the longitudinal screw and mobile clamping limb, between the left transverse screw and left clamp arm assembly, Yi Jisuo
Between the right transverse screw stated and right clamp arm assembly, respectively corresponds and constitute one group of screw rod-nut screw kinematic pair；
The front end of the fixed clamping arm and the lower end of the vacuum tube of vacuum breaker are affixed；
The front end of the mobile clamping limb and the upper end of the vacuum tube of vacuum breaker are affixed；
The front end of the left and right clamp arm assembly and the ontology clamping contact of the vacuum tube of vacuum breaker；
The front end of the fixed clamping arm, mobile clamping limb and left and right clamp arm assembly, away from the gate stand it is horizontal away from
From greater than the safe distance of the vacuum tube of vacuum breaker operational voltage level；
Horizontal distance of the vacuum tube of vacuum breaker ontology away from the gate stand is greater than the vacuum tube of vacuum breaker
The safe distance of operational voltage level；
The upper and lower end of the vacuum tube of vacuum breaker is respectively corresponded with the test voltage output end of Withstand test device respectively
Connection；
On the top of the longitudinal screw, it is provided with longitudinal screw driving runner；
In the outboard end of the left transverse screw and right transverse screw, respectively corresponds and be provided with left transverse screw and right transverse screw
Driving runner；
Between the mobile clamping limb and the gate stand, it is provided with longitudinal graduated scale；
When carrying out Insulation Test of the vacuum tube of vacuum breaker under " separating brake " state, rotates the longitudinal screw and drive
Turn wheel adjusts longitudinal height of the mobile clamping limb upper end fixing seat, so that the vacuum tube of vacuum breaker is upper and lower
Both ends are just fixed between the upper end fixing seat of mobile clamping limb and the lower end fixing seat of fixed clamping arm by correspondence respectively,
With screw by the upper and lower end of the vacuum tube of vacuum breaker upper end fixing seat and fixed clamping arm with mobile clamping limb respectively
The corresponding fastening of lower end fixing seat it is affixed；By the upper and lower end of the vacuum tube of vacuum breaker respectively with Withstand test device
Test voltage output end is connected respectively；
Then, the longitudinal screw driving runner is continued to rotate, observes the number of altitude of longitudinal graduated scale, described in adjusting
Longitudinal height of mobile clamping limb upper end fixing seat, so that the upper end of the vacuum tube of vacuum breaker is pulled upwardly out or moves
It is dynamic, when the spacing between the vacuum tube of vacuum breaker upper/lower terminal pull open test specification defined it is specified open away from after,
Pressure test of the single vacuum tube of vacuum breaker under " separating brake " state can be carried out according to corresponding testing regulations.
2. the method for vacuum tube of vacuum breaker special project Insulation Test described in accordance with the claim 1, it is characterized in that described left and right
The screw thread of two transverse screws is oppositely arranged.
3. the method for vacuum tube of vacuum breaker special project Insulation Test described in accordance with the claim 1, it is characterized in that it is described can
The front end of mobile platform is provided with fixed support leg, and the rear end of the moveable platform is provided with rotating wheel.
4. the method for vacuum tube of vacuum breaker special project Insulation Test described in accordance with the claim 1, it is characterized in that in the door
The top of type stand, is provided with handle.
5. the method for vacuum tube of vacuum breaker special project Insulation Test described in accordance with the claim 1, it is characterized in that described consolidates
The front end of clamp gripping arm, mobile clamping limb and left and right clamp arm assembly, is arranged towards the same side of the gate stand.
6. the method for vacuum tube of vacuum breaker special project Insulation Test described in accordance with the claim 1, it is characterized in that the fixation
The front end of clamping limb, mobile clamping limb, is respectively arranged with the vacuum tube of vacuum breaker upper and lower end with fixing threaded hole and fixes
Seat, the upper and lower end of the vacuum tube of vacuum breaker are corresponding affixed with the upper and lower end fixing seat respectively through bolt.
7. the method for vacuum tube of vacuum breaker special project Insulation Test according to claim 6, it is characterized in that described consolidates
Screw hole is determined for the adjustable long hole in fixed position or elliptical aperture, or the fixed nonadjustable circular hole in position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201511029082.3A CN105629141B (en) | 2015-12-31 | 2015-12-31 | A kind of method of vacuum tube of vacuum breaker special project Insulation Test |
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|---|---|---|---|
| CN201511029082.3A CN105629141B (en) | 2015-12-31 | 2015-12-31 | A kind of method of vacuum tube of vacuum breaker special project Insulation Test |
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| CN105629141B true CN105629141B (en) | 2018-12-28 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110441005B (en) * | 2019-07-29 | 2021-08-31 | 国网福建省电力有限公司检修分公司 | SF6 density relay air leakage rapid detection device and method |
| CN114264946B (en) * | 2021-12-14 | 2023-09-22 | 广东电网有限责任公司江门供电局 | Breaker vacuum arc-extinguishing chamber test tool |
| CN117741364B (en) * | 2023-12-20 | 2024-06-04 | 江苏米格电气集团股份有限公司 | Magnetic control column vacuum circuit breaker detection system and detection method |
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| CN201159680Y (en) * | 2008-02-02 | 2008-12-03 | 安徽省电力公司阜阳供电公司 | Special bracket for arc extinguish chamber quality detection of high voltage vacuum breaker |
| CN102620922A (en) * | 2012-03-28 | 2012-08-01 | 常州森隆电力科技有限公司 | Measuring equipment and method for just splitting and closing of breaker by piezoelectric ceramic sensor |
| CN103439652A (en) * | 2013-06-27 | 2013-12-11 | 国家电网公司 | Breaker post testing device |
| CN104377583A (en) * | 2014-11-28 | 2015-02-25 | 国家电网公司 | Vehicle-mounted device of 10kVPT switch cabinet busbar lightning arrester |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1237772A (en) * | 1967-06-09 | 1971-06-30 | Reyrolle A & Co Ltd | Improvements relating to high-voltage electric switchgear |
| CN201159680Y (en) * | 2008-02-02 | 2008-12-03 | 安徽省电力公司阜阳供电公司 | Special bracket for arc extinguish chamber quality detection of high voltage vacuum breaker |
| CN102620922A (en) * | 2012-03-28 | 2012-08-01 | 常州森隆电力科技有限公司 | Measuring equipment and method for just splitting and closing of breaker by piezoelectric ceramic sensor |
| CN103439652A (en) * | 2013-06-27 | 2013-12-11 | 国家电网公司 | Breaker post testing device |
| CN104377583A (en) * | 2014-11-28 | 2015-02-25 | 国家电网公司 | Vehicle-mounted device of 10kVPT switch cabinet busbar lightning arrester |
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| CN105629141A (en) | 2016-06-01 |
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