CN105424986B - A kind of auxiliary device for 10kv vacuum circuit breaker high-potting - Google Patents
A kind of auxiliary device for 10kv vacuum circuit breaker high-potting Download PDFInfo
- Publication number
- CN105424986B CN105424986B CN201510823991.8A CN201510823991A CN105424986B CN 105424986 B CN105424986 B CN 105424986B CN 201510823991 A CN201510823991 A CN 201510823991A CN 105424986 B CN105424986 B CN 105424986B
- Authority
- CN
- China
- Prior art keywords
- clamping part
- fixed plate
- circuit breaker
- test
- vacuum circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000004382 potting Methods 0.000 title claims abstract description 21
- 238000012360 testing method Methods 0.000 claims abstract description 77
- 238000009434 installation Methods 0.000 claims abstract description 38
- 239000000463 material Substances 0.000 claims description 5
- 125000006850 spacer group Chemical group 0.000 claims description 5
- 230000010354 integration Effects 0.000 claims description 4
- 229910001369 Brass Inorganic materials 0.000 claims description 3
- 239000010951 brass Substances 0.000 claims description 3
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 239000004332 silver Substances 0.000 claims description 3
- 238000005299 abrasion Methods 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 230000000717 retained effect Effects 0.000 claims description 2
- 230000006978 adaptation Effects 0.000 claims 1
- 238000002474 experimental method Methods 0.000 abstract description 5
- 206010037660 Pyrexia Diseases 0.000 abstract description 4
- 238000009413 insulation Methods 0.000 abstract description 3
- 238000013461 design Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000080 chela (arthropods) Anatomy 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000012549 training Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
- Breakers (AREA)
Abstract
The invention discloses a kind of auxiliary devices for 10kv vacuum circuit breaker high-potting, pass through the fixed plate and matching contacts for vacuum-break switches shape of setting insulation and the electric installation of quantity setting, and contact locking portion and test clamping part are set on electric installation, contact locking portion and test clamping part are adjustably disposed in the two sides of fixed plate, when carrying out loop resistance test to vacuum circuit breaker, the contact locking portion of electric installation is aligned by hand-held fixed plate to be firmly pushed into fixed plate after contacts for vacuum-break switches contact locking portion is made to be fully inserted into contacts for vacuum-break switches, the test clamping part of the fixed plate other side is connected into voltage clamp or current clamp at this time to complete the loop resistance of vacuum circuit breaker and test, the auxiliary device, which avoids test clip and directly contacts contacts for vacuum-break switches, to be made because caused by without correct wiring position The fever of vacuum circuit breaker circle fingertip spring is burnt out, and has the advantages that checking experiment is high-efficient using the auxiliary device.
Description
Technical field
The present invention relates to vacuum circuit breaker checking experiment field more particularly to a kind of 10kv vacuum circuit breaker high-pottings
Auxiliary device.
Background technique
AC high voltage vacuum breaker is as mainly controlling and protect equipment, high reliablity, Breaking capacity in electric system
Greatly, it is suitble to the series of advantages such as frequent operation, is all more and more widely used in all trades and professions and every field.
Then vacuum circuit breaker has begun to the production of high-volume, scale, and this requires to prevent in the inspection work of product export
Only some are examined and generate damage to certain components of product when item-test, reduce loss and improve working efficiency.For 10kV
The main high-potting of vacuum circuit breaker mainly has: megger test, loop resistance test, voltage-withstand test.In loop resistance
In test, 10kV vacuum circuit breaker need under "on" position, on the upper and lower Mume flower contact of vacuum circuit breaker add voltage
Pincers, current clamp, and tested in current clamp plus the high current of 100A (ampere) or more, under so big high current,
The structural material that electric current flows through, easily fever deformation, or even burns phenomenon, traditional test method for voltage clamp and
Current clamp is inserted into the Mume flower contact of vacuum circuit breaker together and clamps, and 200A (ampere) high-current test is added after then connecting,
When voltage clamp and current clamp are inserted into Mume flower contact simultaneously, current clamp can encounter coil component spring, when current clamp flows through 200A (peace
Training) high current when, easily cause camber of spring, phenomenon burnt when serious, in addition, this traditional test method is due to only
Voltage clamp and current clamp are touched into the one of small contact of Mume flower contact, can not real embodiment 10kV vacuum circuit breaker exist
Test case under Mume flower contact full contact.
Summary of the invention
In order to solve the above-mentioned problems in the prior art, the present invention provide one kind can actual response test case and
The auxiliary device for 10kv vacuum circuit breaker high-potting of effective protection tested equipment.
Technical solution provided by the invention is as follows: including electric installation, fixed plate and locking device, the electric installation is logical
It crosses the locking device to be fixed adjustably in the fixed plate, the electric installation is corresponded in the fixed plate and is offered and is determined
Position hole, the electric installation include contact locking portion and the test clamping part that is installed on the contact locking portion, the test
Clamping part passes through the location hole, and the part that the test clamping part passes through location hole cooperates with the locking device, by this
The contact locking portion and test clamping part are locked in the fixed plate by cooperation.
In the preferred embodiment, the quantity Matching contacts for vacuum-break switches quantity setting of the electric installation,
The quantity of electric installation described in the quantity Matching of the location hole is arranged, the position arrangement matching vacuum circuit breaker of the location hole
Contact position arrange setting.
In the preferred embodiment, the quantity of the electric installation and the location hole is disposed as 3, described
Location hole is set as strip.
In the preferred embodiment, the contact locking portion includes interconnecting piece and adapter head, and the interconnecting piece is used
It is arranged in the form fit contacts for vacuum-break switches shape of affixed adapter head and the test clamping part, the adapter head, it is described
Adapter head and the test retained part are not located at the two sides of fixed plate.
In the preferred embodiment, the interconnecting piece and the adapter head are integration setting, the interconnecting piece
Cylinder is disposed as with the adapter head, and one end of the adapter head is provided with conical lead angle, the interconnecting piece and described
The outer surface of adapter head is coated with one layer of silver.
In the preferred embodiment, the contact locking portion and the test clamping part are not less than by purity
99.99% brass is made, and the contact locking portion and the test clamping part are integration setting.
In the preferred embodiment, the test clamping part is set as round bar shape, the test clamping part and institute
It states contact locking portion to be arranged with central axes, is provided on the test clamping part and matches the thread that the locking device screws, institute
It states and is additionally provided with conductive spacer between test clamping part and the locking device.
In the preferred embodiment, the aperture that the outer diameter of the interconnecting piece is greater than the location hole is arranged, described
The outer diameter for testing clamping part is less than the aperture setting of the location hole.
In the preferred embodiment, the fixed plate is made of epoxide resin material.
In the preferred embodiment, the anti-support of contacting to earth rotatably recycled there are two being symmetrical arranged in the fixed plate
Frame and two handles.
The beneficial effect that the present invention generates is: this is used for the auxiliary device of 10kv vacuum circuit breaker high-potting by setting
The fixed plate of insulation and the electric installation of matching contacts for vacuum-break switches shape and quantity setting are set, and is arranged on electric installation
Contact locking portion and test clamping part are adjustably disposed in the two sides of fixed plate by contact locking portion and test clamping part, when
When carrying out loop resistance test to vacuum circuit breaker, fixed plate is held by the contact locking portion of electric installation and is directed at vacuum circuit breaker
Firmly fixed plate is pushed into after contact contact locking portion is made to be fully inserted into contacts for vacuum-break switches, it is at this time that fixed plate is another
The test clamping part of side connects voltage clamp or current clamp to complete the loop resistance test of vacuum circuit breaker, when galvanic circle electricity
At the end of resistance test, needs to carry out three-phase when carrying out pressure test to 10kV vacuum circuit breaker and be shorted wiring, it can will be in fixed plate
On the test clamping part that connects be shorted a wiring as being shorted point and carry out a three-phase, this is used for the auxiliary of 10kv vacuum circuit breaker high-potting
It helps device to avoid test clip and directly contact contacts for vacuum-break switches to make because of vacuum circuit breaker caused by without correct wiring position
Round fingertip spring fever is burnt out, and the configuration design of contact locking portion enables contact locking portion and three vacuum circuit breakers to touch
Head comes into full contact with so that the practical charging operation operating condition of vacuum circuit breaker can really be reflected by making test result more, and the auxiliary device has
Have easy to operate, has the advantages that checking experiment is high-efficient using the auxiliary device.
Detailed description of the invention
Fig. 1 is the side view of the auxiliary device for 10kv vacuum circuit breaker high-potting of the invention；
Fig. 2 is the top view of auxiliary device of the present invention shown in FIG. 1 for 10kv vacuum circuit breaker high-potting；
Fig. 3 is the bottom view of auxiliary device of the present invention shown in FIG. 1 for 10kv vacuum circuit breaker high-potting；
Fig. 4 is top view of the present invention for the fixed plate in the auxiliary device of 10kv vacuum circuit breaker high-potting；
Fig. 5 is perspective view of the present invention for the electric installation in the auxiliary device of 10kv vacuum circuit breaker high-potting；
Fig. 6 is perspective view of the present invention for the locking device in the auxiliary device of 10kv vacuum circuit breaker high-potting.
Specific embodiment
Referring to Fig. 1 to Fig. 6, the auxiliary device 100 for being used for 10kv vacuum circuit breaker high-potting include electric installation 10,
Fixed plate 20 and locking device 30, electric installation 10 are fixed adjustably in fixed plate 20 by locking device 30, fixed plate
20 epoxide resin material by insulating is made, and electric installation 10 includes contact locking portion 11 and is installed on contact locking portion 11
Clamping part 12 is tested, the brass of contact locking portion 11 and test clamping part 12 by purity not less than 99.99% is made, fixed plate
Correspond to electric installation 10 on 20 and offer location hole 21, test clamping part 12 pass through after location hole 21 with the cooperation of locking device 30 from
And contact locking portion 11 and test clamping part 12 are locked in the two sides of fixed plate 20.Electric installation 10 and location hole 21 are according to true
The Mume flower contact (not shown) number of empty breaker is disposed as 3, and location hole 21 is equidistantly arranged in fixed plate 20, positioning
Hole 21 is set as strip in order to finely tune spacing of the electric installation 10 in fixed plate 20, and the pore size of location hole 21 is with energy
It enough allows test clamping part 12 to pass through but contact locking portion 11 cannot be allowed to pass through setting.Contact locking portion 11 includes 111 He of interconnecting piece
Adapter head 112, for interconnecting piece 111 for connecting adapter head 112 and test clamping part 12, the form fit vacuum of adapter head 112 is disconnected
The setting of road device contact shape, interconnecting piece 111 and adapter head 112 are disposed as cylinder, and one end of adapter head 112 is provided with circular cone
Shape lead angle 1121, the effect of conical lead angle 1121 mainly guides adapter head 112 to be smoothly inserted on 10kV vacuum circuit breaker,
Lower Mume flower contact to play guidance, fixed function, and then guarantees that adapter head 112 can be in close contact with Mume flower contact.Connection
Portion 111 and the outer surface of adapter head 112 are coated with one layer of silver to reduce the loop resistance value of the electric installation 10 itself, make circuit
Resistance value controls within 3 μ Ω.Test clamping part 12 is set as round bar shape, and test clamping part 12 and contact locking portion 11 are in
Axis setting, test clamping part 12 are fused into one using melting welding mode with contact locking portion 11, test on clamping part 12 and be provided with
The thread 121 that matching locking device 30 screws, locking device 30 use nut made of copper, matching thread are equipped in locking device 30
121 screw thread (not shown) tests between clamping part 12 and locking device 30 and is additionally provided with conductive spacer 40, and conductive spacer 40 is main
It is used to cooperate contact locking portion 11, so that contact locking portion 11 can be securely fastened in fixed plate 20.
The anti-bracket 22 and two one or two that contacts to earth rotatably recycled there are two being symmetrical arranged referring to Fig. 3 and Fig. 4, in fixed plate 20
Hand 23 opens bracket 22 and makes the metal part of entire auxiliary device 100 not when the auxiliary device 100 is placed on platform
It can contact to earth to prevent abrasion electric installation 10；Handle 23 makes the more convenient operation of auxiliary device 100, holds two side grips 23
It is directed at vacuum circuit breaker Mume flower contact, can be easily pushed into, is set in corresponding anti-22 mounting groove of bracket that contacts to earth in fixed plate 20
It is equipped with spring blind 221, passes through spring blind 221 when not using and preventing contacting to earth bracket 22 and is taken in fixed plate 20, to
When opening, it only need to gently push the anti-bracket 22 that contacts to earth that can be opened into respective angles.
In use, 1) first the round bar shape test clamping part 12 of electric installation 10 is inserted into the location hole 21 of fixed plate 20,
The test clamping part 12 of exposing is penetrated from the other side of fixed plate 20 with conductive spacer 40, and locks test clip with locking device 30
The thread 121 in portion 12 is held, so that electric installation 10 is fixed in fixed plate 20；2) three electric installations 10 are all fixed on fixation
The contact locking portion 11 of electric installation 10 is directed to the Mume flower contact of 10kV vacuum circuit breaker, appropriate adjustment three are led after on plate 20
Position location of the electric installation 10 in location hole 21, and it is fixed locked with locking device 30 again；3) at contact locking portion 11
After the Mume flower contact for setting alignment 10kV vacuum circuit breaker, holds two side grips 23 and be firmly pushed into entire fixed plate 20, make plum blossom
Contact can be opened completely and be come into full contact with three contact locking portions 11, and voltage clamp or current clamp (not shown) are clipped in fixed plate
Loop resistance test can be carried out on the cylindrical test clamping part 12 of 20 other sides, it is pre- right after loop resistance test
When 10kV vacuum circuit breaker carries out pressure test, the test clamping part 12 connected in fixed plate 20 can be carried out as point is shorted
Three-phase is shorted wiring.After a 10kV vacuum circuit breaker is tested, pulls up fixed plate 20 and carry out next same type
It no longer needs to be adjusted when 10kV vacuum circuit breaker, is inserted directly into Mume flower contact, therefore more vacuum circuit breakers are needed
When carrying out checking experiment, operation quality not only can be improved, but also shorten the activity duration, improve efficiency.
In conclusion the auxiliary device 100 for being used for 10kv vacuum circuit breaker high-potting passes through the fixation of setting insulation
The electric installation 10 of plate 20 and matching contacts for vacuum-break switches shape and quantity setting, and contact is set on electric installation 10 and is fitted
With portion 11 and test clamping part 12, contact locking portion 11 and test clamping part 12 are adjustably disposed in the two of fixed plate 20
Side holds the handle 23 in fixed plate 20 for the contact of electric installation 10 when carrying out loop resistance test to vacuum circuit breaker
Fixed plate 20 after being directed at contacts for vacuum-break switches is firmly pushed into that contact locking portion 11 is made to be fully inserted into vacuum by locking portion 11
The test clamping part for being exposed at 20 other side of fixed plate is connected voltage clamp or current clamp at this time to complete vacuum by contact of breaker
The loop resistance of breaker is tested, at the end of the resistance test of galvanic circle, when carrying out pressure test to 10kV vacuum circuit breaker
It needs to carry out three-phase and is shorted wiring, the test clamping part 12 that connected in fixed plate 20 can be subjected to three-phase short circuit as point is shorted
Wiring, the auxiliary device 100 for being used for 10kv vacuum circuit breaker high-potting avoid test clip and directly contact vacuum circuit breaker
Contact makes because the fever of vacuum circuit breaker circle fingertip spring is burnt out caused by without correct wiring position, and contact locking portion 11
Configuration design enables contact locking portion 11 to come into full contact with to make test result more can be true with three contacts for vacuum-break switches
The real reflection practical charging operation operating condition of vacuum circuit breaker, and the auxiliary device 100 has easy to operate, uses the auxiliary device
100 have the advantages that checking experiment is high-efficient.
It above are only a specific embodiment of the invention, but the design concept of the present invention is not limited to this, all utilizations
This design makes a non-material change to the present invention, and should all belong to behavior that violates the scope of protection of the present invention.
Claims (4)
1. a kind of auxiliary device for 10kv vacuum circuit breaker high-potting, it is characterised in that: including electric installation, fixed plate
And locking device, the electric installation are fixed adjustably in the fixed plate by the locking device, the fixed plate
The upper correspondence electric installation offers location hole, and the electric installation includes that contact locking portion is adapted to the contact is installed in
Test clamping part in portion, the test clamping part pass through the location hole, and the test clamping part passes through the part of location hole
Cooperate with the locking device, the contact locking portion and test clamping part are locked in the fixed plate by the cooperation；
The quantity Matching contacts for vacuum-break switches quantity of the electric installation is arranged, electric installation described in the quantity Matching of the location hole
Quantity setting, the location hole position arrangement matching vacuum circuit breaker contact position arrange setting；The fixed plate by
Epoxide resin material is made；The test clamping part is set as round bar shape, and the test clamping part and the contact locking portion are same
Central axes setting is provided on the test clamping part and matches the thread that the locking device screws, the test clamping part and
Conductive spacer is additionally provided between the locking device；
Anti- bracket and two handles of contacting to earth rotatably recycled there are two being symmetrical arranged in the fixed plate；When the auxiliary device is put
It sets when on platform, opens bracket and the metal part of entire auxiliary device will not be contacted to earth to prevent abrasion electric installation；Gu
It is provided with spring blind in the corresponding anti-bracket mounting groove that contacts to earth on fixed board, it will by spring blind when not using and preventing contacting to earth bracket
It is taken in fixed plate.
2. the auxiliary device according to claim 1 for 10kv vacuum circuit breaker high-potting, it is characterised in that: described
The quantity of electric installation and the location hole is disposed as 3, and the location hole is set as strip.
3. the auxiliary device according to claim 1 for 10kv vacuum circuit breaker high-potting, it is characterised in that: described
Contact locking portion includes interconnecting piece and adapter head, and the interconnecting piece is described suitable for affixed adapter head and the test clamping part
Form fit contacts for vacuum-break switches shape setting with head, the adapter head and the test retained part are not located at fixed plate
Two sides；The interconnecting piece and the adapter head are integration setting, and the interconnecting piece and the adapter head are disposed as cylinder
Shape, one end of the adapter head are provided with conical lead angle, and the outer surface of the interconnecting piece and the adapter head is coated with one layer
Silver；The brass of the contact locking portion and the test clamping part by purity not less than 99.99% is made, the contact adaptation
Portion and the test clamping part are integration setting.
4. the auxiliary device according to claim 1 or 3 for 10kv vacuum circuit breaker high-potting, it is characterised in that:
The aperture that the outer diameter of the interconnecting piece is greater than the location hole is arranged, and the outer diameter of the test clamping part is less than the location hole
Aperture setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510823991.8A CN105424986B (en) | 2015-11-24 | 2015-11-24 | A kind of auxiliary device for 10kv vacuum circuit breaker high-potting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510823991.8A CN105424986B (en) | 2015-11-24 | 2015-11-24 | A kind of auxiliary device for 10kv vacuum circuit breaker high-potting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105424986A CN105424986A (en) | 2016-03-23 |
| CN105424986B true CN105424986B (en) | 2019-02-15 |
Family
ID=55503319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510823991.8A Active CN105424986B (en) | 2015-11-24 | 2015-11-24 | A kind of auxiliary device for 10kv vacuum circuit breaker high-potting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105424986B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105891556B (en) * | 2016-05-31 | 2018-11-23 | 国网浙江东阳市供电公司 | A kind of cranking test termination |
| CN106199417A (en) * | 2016-08-30 | 2016-12-07 | 安徽中电兴发与鑫龙科技股份有限公司 | A kind of chopper performance test fixture |
| CN106404369B (en) * | 2016-09-27 | 2019-03-12 | 国网上海市电力公司 | Device and method for the deterioration performance test of switch cabinet bus pile crown fingertip spring |
| CN107132416B (en) * | 2017-04-24 | 2019-07-12 | 高原(山东)机电设备有限公司 | A kind of loop resistance test method |
| CN113655379B (en) * | 2021-08-20 | 2024-05-24 | 贵州振华群英电器有限公司（国营第八九一厂） | Device for measuring voltage drop of high-voltage direct-current contactor |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2531395Y (en) * | 2002-02-25 | 2003-01-15 | 首钢总公司 | Instrument terminal connector |
| CN201069447Y (en) * | 2007-07-04 | 2008-06-04 | 浙江开控电气有限公司 | Test terminal |
| CN202794339U (en) * | 2012-09-06 | 2013-03-13 | 国家电网公司 | 10kV handcart switch circuit resistance test wiring assistance device |
| CN103091519A (en) * | 2013-01-29 | 2013-05-08 | 福建省电力有限公司 | Handcart switch return circuit resistance test rivet type cable clamp |
| CN204011865U (en) * | 2014-07-10 | 2014-12-10 | 国家电网公司 | Vacuum circuit-breaker directly hinders test connecting device |
| CN204330821U (en) * | 2014-12-22 | 2015-05-13 | 江苏省电力公司常州供电公司 | A kind of 10kV vacuum circuit breaker loop resistance testing auxiliary device |
| CN205263131U (en) * | 2015-11-24 | 2016-05-25 | 国网福建省电力有限公司 | A auxiliary device for 10kv vacuum circuit breaker high -voltage testing |
-
2015
- 2015-11-24 CN CN201510823991.8A patent/CN105424986B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2531395Y (en) * | 2002-02-25 | 2003-01-15 | 首钢总公司 | Instrument terminal connector |
| CN201069447Y (en) * | 2007-07-04 | 2008-06-04 | 浙江开控电气有限公司 | Test terminal |
| CN202794339U (en) * | 2012-09-06 | 2013-03-13 | 国家电网公司 | 10kV handcart switch circuit resistance test wiring assistance device |
| CN103091519A (en) * | 2013-01-29 | 2013-05-08 | 福建省电力有限公司 | Handcart switch return circuit resistance test rivet type cable clamp |
| CN204011865U (en) * | 2014-07-10 | 2014-12-10 | 国家电网公司 | Vacuum circuit-breaker directly hinders test connecting device |
| CN204330821U (en) * | 2014-12-22 | 2015-05-13 | 江苏省电力公司常州供电公司 | A kind of 10kV vacuum circuit breaker loop resistance testing auxiliary device |
| CN205263131U (en) * | 2015-11-24 | 2016-05-25 | 国网福建省电力有限公司 | A auxiliary device for 10kv vacuum circuit breaker high -voltage testing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105424986A (en) | 2016-03-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105424986B (en) | A kind of auxiliary device for 10kv vacuum circuit breaker high-potting | |
| JP2009536513A (en) | Method and apparatus for maintaining a high voltage switchgear under voltage | |
| CN206450720U (en) | Breaker resistance test auxiliary connection device | |
| CN103257264A (en) | Novel high-voltage electroscope for alternating currents and direct currents | |
| CN205263131U (en) | A auxiliary device for 10kv vacuum circuit breaker high -voltage testing | |
| CN114047364A (en) | Batch verification platform for insulating safety tools | |
| CN205229191U (en) | Insulator spindle with test electrography connector | |
| CN207967790U (en) | A kind of overhead line electricity testing grounding ring wire clamp insulating shield extracting tool | |
| CN208805545U (en) | A kind of loop resistance test device | |
| CN107942101B (en) | Portable wire connector for transformer test | |
| CN207396542U (en) | Handcart type breaker loop resistance tests connection plug | |
| CN202794339U (en) | 10kV handcart switch circuit resistance test wiring assistance device | |
| CN203069626U (en) | Clamping device for ammeter detection | |
| CN209400605U (en) | D.C. resistance test clamp | |
| CN210985001U (en) | 500kV porcelain column type terminal rod for circuit breaker test | |
| CN204595063U (en) | A kind of electrical circuit inspection and contact electroscope | |
| CN210779047U (en) | Short-circuit piece of high-arch low-metering current transformer | |
| CN110895323A (en) | Portable mutual inductor test rod | |
| CN209542661U (en) | A kind of D.C. resistance test clamp | |
| CN207516486U (en) | A kind of device for reducing the secondary cable core verification time | |
| CN205484750U (en) | Magnetic induction loop testing arrangement | |
| CN216718610U (en) | Novel leakage circuit breaker tester | |
| CN218299569U (en) | Current transformer wiring tool | |
| CN208093505U (en) | A kind of fuse base | |
| CN220626477U (en) | 1200A test probe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |