CN206057497U - Suitable for the solid insulation electric life test device of Multi-example test - Google Patents
Suitable for the solid insulation electric life test device of Multi-example test Download PDFInfo
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- CN206057497U CN206057497U CN201621095338.0U CN201621095338U CN206057497U CN 206057497 U CN206057497 U CN 206057497U CN 201621095338 U CN201621095338 U CN 201621095338U CN 206057497 U CN206057497 U CN 206057497U
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Abstract
This utility model is related to a kind of solid insulation electric life test device suitable for Multi-example test, and the device includes：High voltage power supply, overcurrent protection resistance, fuse and light emitting diode lamp incorporate in series module, multi-electrode test tank body, Rogowsky coil current transformer and timer；High voltage power supply is connected with protective resistance, and per bar, with light emitting diode, a route fuse indicates that series lamp integrates module and test sample and ground connection is composed in series；Each bar branch road head end is connected in parallel protective resistance, and end is connected in parallel ground connection；Dash current signal when Rogowsky coil detection punctures, timer receive signal and record breakdown time information.This utility model can be applicable to the AC DC electric life test of solid insulation, and when can preferably solve the test of solid insulating material electric life, sample breakdown time dispersibility is larger, the problem of test period length；Test product branch road in parallel can arbitrarily be increased and decreased simultaneously, life test can be carried out simultaneously to different types of solid insulating material, with good extensibility.
Description
Technical field
This utility model belongs to electric power solid insulating material technical field of measurement and test, be related to it is a kind of suitable for Multi-example test
Solid insulation electric life test device.
Background technology
For the AC DC electric life test of solid insulating material, if one by one carrying out acceleration voltage ageing to single sample
Test, because different tests time ageing environment has differences, such as ambient temperature, the difference of humidity, can cause same applied voltage
Than larger, the electric life data reliability for obtaining is relatively low, and the test period is very long for the dispersibility of lower sample breakdown time.
Therefore, it is badly in need of a kind of system that can be tested to Multi-example solid insulating material in power system or dress at present
Put.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of solid insulation electric life suitable for Multi-example test
Test device, the device can be applicable to the AC DC electric life test of solid insulation, can preferably solve solid insulating material
When electric life is tested, sample breakdown time dispersibility is larger, the problem of test period length；Test product in parallel can arbitrarily be increased and decreased simultaneously
Road, can carry out life test to different types of solid insulating material, simultaneously with good extensibility.
To reach above-mentioned purpose, this utility model provides following technical scheme：
A kind of solid insulation electric life test device suitable for Multi-example test, the test device include：High voltage power supply,
Overcurrent protection resistance, multiple fuse light emitting diodes are incorporated in series module, multiple multi-electrodes test tank body and are surveyed with each
Rogowsky coil current transformer and timer that examination tank body correspondence is connected；
Each described fuse light emitting diode incorporates in series module by the luminous of a fuse and two reverse parallel connections
Diode display lamp is composed in series, and multiple fuse light emitting diodes incorporate in series wired in parallel connection, form a plurality of branch road, melt
Fracture of wire controls the branch road folding before and after the branch road sample breakdown, and light emitting diode is used for the folding condition for indicating the branch road, i.e.,：Examination
When product do not puncture, branch road normal pressurization, LED light lamp display lamp are bright, and test product punctures moment, and fuse fusing, the branch road are broken
Open, light emitting diode lamp extinguishes；
The high voltage power supply is connected with overcurrent protection resistant series, and the fuse that multiple parallel connections are connect under overcurrent protection resistance is sent out
Optical diode incorporates in series module, forms a plurality of branch road, contains some branch roads in each multi-electrode test tank body；It is all
Branch road head end is connected in parallel overcurrent protection resistance, and end is connected in parallel ground connection, is formed back with high voltage power supply and overcurrent protection resistance
Road；
Earth lead is collected in multiple branch road ends that the Rogowsky coil is enclosed within each multi-electrode test tank body
On, for detecting dash current signal when each branch road punctures；During a certain branch road sample breakdown, larger dash current passes through
Rogowsky coil so as to induce small current and be transferred to timer, timer receive signal and record respective branch
Breakdown time information.
Further, described each fuse light emitting diode incorporates in series module using cylinder, is that lucite is constituted；
Inside cuts the groove of certain depth and length, for setting up fuse；Copper piece clip of the erection of fuse by groove both sides
Tool is completed：The two sides of groove open up little square hole, the two panels copper sheet of placing clamp fuse respectively in certain altitude；Place
During fuse, respectively fuse two ends are inserted between the copper sheet of groove both sides, stretch fuse, copper is clamped by insulating screw
Piece fixes fuse；The copper sheet of the both sides of the fixed fuse, side are connected with external screw thread copper post, used as the height for integrating module
Pressure side, is connected with high voltage power supply by overcurrent protection resistance, and opposite side is connected with one end pin of light emitting diode, light-emitting diodes
The other end of pipe is connected with female thread hexagonal copper post, and female thread hexagonal copper post is used as the low-pressure side and each the examination of road for integrating module
Condition connects；Whole module of integrating just connects fuse by copper sheet by external screw thread copper post, then by copper sheet connecting luminous diode, enters
And connecting female thread hexagonal copper post, formation incorporates in series module；
In module is integrated, the copper sheet of fixed fuse is to be embedded in the square opening of groove both sides, in each square opening
Upper and lower two pieces of copper sheets are inlayed, two pieces of copper sheets are tightened by the screw insulator of top；Two light emitting diodes totally four pins,
Two pins of wherein side are fixed on copper sheet, are formed with copper sheet and are connected in series, two pins and the female thread six of opposite side
Angle copper post is fixedly connected, so that fuse is formed with reflective diode connecting；During using integrating module, first two are sent out
In optical diode four pins of reversely insertion in parallel；Then, the screw above the copper sheet of both sides is unscrewed, fuse two ends is inserted respectively
Enter in the copper sheet of both sides, stretch and screwing screw is fixed.
Further, the depth of the groove is 35mm, and length is 65mm；The size of the square opening is width 5mm, high 3mm.
Further, the multi-electrode test tank body includes stainless steel tank body, lucite cover, 9 lower prop electrodes and 9
The insulation firmware of upper prop electrode, 9 electrode bars and fixed electrode and test product；
The stainless steel tank body internal diameter 290mm, external diameter 300mm, the high 150mm of internal container have four bases, high 25mm, tank
Body base plate picks out a threaded post, used as earth terminal；9 bottom electrodes of tank interior are fixed by threaded post spiral；Nine electrodes,
One is located at tank body circle centre position, and 8 are uniformly distributed away from circle centre position radius 85mm in addition；
The lower prop electrode high 20mm, diameter 25mm, are 3mm chamferings with radius；The high 25mm of upper prop electrode, diameter
25mm, is 3mm chamferings with radius；Upper/lower electrode has internal threaded column, for fixed and connection tank body or electrode bar；
The long 200mm of the electrode bar, diameter 8mm, two ends have external screw thread, and one end is connected with Top electrode, the other end with it is molten
Fracture of wire LED integral module is connected；
There are 9 holes on the lucite cover, run through cover for electrode bar；
The insulation fastener material is lucite, depending on its size is according to test product size, electrode size and insulating requirements,
Its structure is supported by four little pillars by the upper and lower two lucites collar and is connected and composed, and the upper and lower collar entangles power-on and power-off respectively
Pole, reaches the effect of fixed electrode；Four little pillars reach the effect of fixed sample, and when carrying out electric life and testing, not shadow
Ring the radiating of test product.
Further, the Rogowsky coil is engaged with timer, for detecting impact when each branch road punctures
Current signal simultaneously records the breakdown time information of respective branch；What Rogowsky coil was enclosed within all branch road samples collects ground connection
On line, during sample breakdown, the coil-induced dash current for puncturing the moment can produce a small current signal and send timer to, institute
State timer and be able to record that the detailed temporal information for puncturing the moment, including：Date, week and Hour Minute Second；Meanwhile, the timing
Device is able to record that and punctures number of times, and can arrange time, browsable, erasing time record information by liquid crystal display screen.
The beneficial effects of the utility model are：This utility model concatenates overcurrent protection resistance using high voltage power supply, and simultaneously
Many test product branch roads of connection connect to form test device；Using cut-offfing for fuse controlling brancher, light emitting diode indicates to cut-off shape
State；The temporal information for puncturing the moment of Rogowsky coil and timer record branch road；This test device has well may be used
Autgmentability, can increase and decrease test product number of branches in parallel according to different demands；Meanwhile, can be with a number of branch road in parallel as one
Group, each group uses a Rogowsky coil and timer, and reaching can be while tests the examination of variety classes solid insulating material
The electric life of product, and the effect for being contrasted.
Description of the drawings
In order that the purpose of this utility model, technical scheme and beneficial effect are clearer, this utility model provides as follows
Accompanying drawing is illustrated：
Fig. 1 is this utility model electrical ageing test system principle schematic diagram；
Fig. 2 is that fuse of the present utility model incorporates in series modular structure schematic diagram with light emitting diode lamp；
Fig. 3 is that this utility model tests the 9 electrode tank body structural representations as embodiment with paper oil insulation electric life；
Fig. 4 is each bypass connection schematic diagram of this utility model based on paper oil insulation example；
Fig. 5 is Integral connection structure schematic diagram when this utility model is connected based on paper oil insulation example after device.
Specific embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail.
Fig. 1 is this utility model electrical ageing test system principle schematic diagram, as illustrated, the test that this utility model is provided
Device included that AC and DC high voltage power supply (being referred to as high voltage power supply), overcurrent protection resistance, fuse and light emitting diode were indicated
Lamp incorporates in series module, multi-electrode test tank body, Rogowsky coil current transformer and timer.It is exhausted according to different solids
The dielectric strength of edge is different, selects the electric pressure and capacity of AC and DC high voltage power supply, according to the appearance of selected high voltage power supply
Amount selects the resistance of overcurrent protection resistance, and the overcurrent protection resistance is used for dash current when suppressing branch road test product to puncture, to subtract
The little impact punctured by other samples.
Specifically：A kind of solid insulation electric life test device suitable for Multi-example test that this utility model is provided
Including high voltage power supply, overcurrent protection resistance, fuse and light emitting diode lamp incorporate in series module, multi-electrode test tank
Body, Rogowsky coil current transformer and timer；High voltage power supply is connected with protective resistance；Per bar route fuse with
Light emitting diode indicates that series lamp integrates module and test sample and ground connection is composed in series；Each bar branch road head end is connected in parallel protection
Resistance, end are connected in parallel ground connection；Fuse controls the branch road folding before and after the branch road sample breakdown；Light emitting diode indicates to prop up
The folding condition on road；Dash current signal when Rogowsky coil detection punctures, timer receives signal and record punctures
Temporal information.
Fig. 2 is that fuse of the present utility model incorporates in series modular structure schematic diagram with light emitting diode lamp, is such as schemed
Shown, it is in series with light emitting diode by fuse that fuse light emitting diode lamp integrates module.As schemed, module is integrated
Insulate and constitute for lucite, cylinder, inside cuts the groove of certain depth (35mm) and length (65mm), molten for setting up
Fracture of wire.The erection of fuse is completed by the copper sheet fixture of groove both sides：The two sides of groove open up little respectively in certain altitude
Square hole, the two panels copper sheet of placing clamp fuse；When placing fuse, groove both sides are inserted at fuse two ends respectively
Between copper sheet, fuse is stretched, copper sheet is clamped by insulating screw and fixes fuse.The copper sheet of the both sides of fixed fuse, one
Side is connected with external screw thread copper post, as the high-pressure side for integrating module, is connected with high voltage power supply by overcurrent protection resistance；Opposite side
It is connected with one end pin of light emitting diode, the other end of light emitting diode is connected with female thread hexagonal copper post, female thread hexagonal
Copper post is connected with each branch road test product as the low-pressure side for integrating module.Whole module of integrating just passes through copper sheet by external screw thread copper post
Connection fuse, then by copper sheet connecting luminous diode, and then connecting female thread hexagonal copper post, formation incorporates in series module.
In module is integrated, the copper sheet of fixed fuse is to be embedded in the square opening of groove both sides.The size of square opening
For wide 5mm, high 3mm, upper and lower two pieces of copper sheets in each square opening, are inlayed, two pieces of copper sheets screw solid by the screw insulator of top
It is fixed；Two light emitting diodes totally four pins, wherein the two of side pin are fixed on copper sheet, form the company of series connection with copper sheet
Connect, two pins of opposite side are fixedly connected with female thread hexagonal copper post, so that fuse is formed with reflective diode going here and there
Connection.During using integrating module, first by four pins of reversely insertion two light emitting diodes in parallel；Then, unscrew both sides copper
Screw above piece, fuse two ends are inserted in the copper sheet of both sides respectively, stretch and screwing screw is fixed.
In this utility model, fuse light emitting diode incorporates in series having the prominent advantages that for module：1) compact company
The line of the system of having deducted is connect, is greatly improved and is wiped reliability；2) integrate module and take into full account insulation margin requirement, design mould
Block size size, it is simple to operation.
Fig. 3 is 9 electrode tank body structural representations of this utility model with the test of paper oil insulation electric life as embodiment, at this
In embodiment, devise can and meanwhile to 9 oil-immersed insulating papers at the same pressurization 9 electrode test tank bodies, as shown in figure 3, including not
Rust cylinder of steel body, lucite cover, 9 lower prop electrodes and 9 upper prop electrodes, 9 electrode bars and fixed electrodes and test product
Insulation firmware.
The stainless steel tank body internal diameter 290mm, external diameter 300mm, the high 150mm of internal container have four bases, high 25mm, tank
Body base plate picks out a threaded post, used as earth terminal；9 bottom electrodes of tank interior are fixed by threaded post spiral.Nine electrodes,
One is located at tank body circle centre position, in addition 8 be uniformly distributed away from circle centre position radius 85mm (depending on test product size and insulating requirements and
It is fixed)；The high 20mm of lower prop electrode, diameter 25mm, are 3mm chamferings with radius；The high 25mm of upper prop electrode, diameter 25mm, with half
Footpath is 3mm chamferings；Upper/lower electrode has internal threaded column, for fixed and connection tank body or electrode bar.9 electrode bars are long
200mm, diameter 8mm, two ends have external screw thread, and one end is connected with Top electrode, the other end and fuse LED integral mould
Block is connected；There are 9 holes on the lucite cover, run through cover for electrode bar；Insulation fastener material be lucite, its chi
It is very little according to test product size, electrode size and insulating requirements depending on.Its structure passes through four ramuscules by the upper and lower two lucites collar
Post is supported and is connected and composed, and the upper and lower collar entangles upper/lower electrode respectively, reaches the effect of fixed electrode；Four little pillars reach fixation
The effect of sample, and when electric life test is carried out, do not affect the radiating of test product.
It is when in the present embodiment, using the 9 electrode electric lifes test tank body by taking paper oil insulation as an example, first that bottom electrode is equal
Tank body relevant position is fixed on by spiral, sample is then placed in, the insulation firmware of fixed electrode and test product is put, then will be even
The Top electrode for having connect electrode bar is put in insulation firmware, and cover is covered tank body through 9 electrode bars finally.
The multi-electrode tests having the prominent advantages that for tank body：1) multi-electrode Multi-example is completed while the function of pressurization, protects
The identical test environment of sample is demonstrate,proved；2) solve when operating to multi-electrode, the easily displacement etc. of upper/lower electrode misalignment, sample is asked
Topic.
In this utility model, the dash current for puncturing the moment is detected using Rogowsky coil, by Luo Ge
Paderewski coil is enclosed within the collecting on earth lead of all branch road samples, during sample breakdown, the coil-induced impact electricity for puncturing the moment
Stream can produce a small current signal and send timer to.Timer has following functions：1) it is able to record that and punctures the detailed of moment
Thin temporal information, including：Date, week and Hour Minute Second；2) can record and puncture number of times；3) when can be arranged by liquid crystal display screen
Between, browsable, erasing time record information.Rogowsky coil has the prominent advantages that：1) coordinate with timer, can be accurate
Reliable record breakdown time information；2) small volume, it is simple to operate, with good autgmentability, can arbitrarily increase timer
Quantity；3) collecting on earth lead for sample is placed on, insulating requirements, safe operation mustn't be considered.
Fig. 4 is each bypass connection schematic diagram of this utility model based on paper oil insulation example, and Fig. 5 is that this practicality is new
Integral connection structure schematic diagram when type is connected based on paper oil insulation example after device；By taking the electric life test of paper oil insulation as an example,
When using this electric life test device, operate according to following steps：
1) integrate module by 9 that install fuse and light emitting diode to be tightened in corresponding respectively by screw thread
On 9 electrode bars, being connected in series for fuse, light emitting diode lamp and test product is completed, form 9 test product branch roads, such as Fig. 4
It is shown；
2) it is high voltage power supply is defeated by the power supply that overcurrent protection resistance is connected to 9 fuse LED integral modules
Enter end, 9 branch circuit parallel connections are connected to overcurrent protection resistance；
3) tank body threaded post connection earth lead；
4) Rogowsky coil is enclosed within earth lead, sensed current signal；
5) all hardware connection is completed, and can be started boost operations, be carried out electric life test.
Finally illustrate, preferred embodiment above is only unrestricted to illustrate the technical solution of the utility model, to the greatest extent
Gutron is crossed above preferred embodiment and this utility model is described in detail, but those skilled in the art should manage
Solution, can make various changes, in the form and details without departing from this utility model claims institute to which
The scope of restriction.
Claims (5)
1. it is a kind of suitable for Multi-example test solid insulation electric life test device, can be to different types of solid insulation material
Material carries out life test simultaneously, it is characterised in that：The test device includes：High voltage power supply, overcurrent protection resistance, multiple fuses
Light emitting diode incorporates in series module, multiple multi-electrodes test tank body and the Kenneth Rogoff being connected corresponding with each test tank body
This lubber ring current transformer and timer；
Each described fuse light emitting diode incorporates in series module by a fuse and the light-emitting diodes of two reverse parallel connections
Pipe display lamp is composed in series, and multiple fuse light emitting diodes incorporate in series wired in parallel connection, form a plurality of branch road, fuse
The branch road folding before and after the branch road sample breakdown is controlled, light emitting diode is used for the folding condition for indicating the branch road, i.e.,：Test product is not
When puncturing, branch road normal pressurization, LED light lamp display lamp are bright, and test product punctures moment, and fuse fusing, the branch road disconnect,
Light emitting diode lamp extinguishes；
The high voltage power supply is connected with overcurrent protection resistant series, and the fuse luminous two of multiple parallel connections is connect under overcurrent protection resistance
Pole pipe incorporates in series module, forms a plurality of branch road, contains some branch roads in each multi-electrode test tank body；All branch roads
Head end is connected in parallel overcurrent protection resistance, and end is connected in parallel ground connection, forms loop with high voltage power supply and overcurrent protection resistance；
Collecting on earth lead for multiple branch road ends that the Rogowsky coil is enclosed within each multi-electrode test tank body, uses
Dash current signal when detecting that each branch road punctures；During a certain branch road sample breakdown, larger dash current passes through Luo Ge
Paderewski coil so as to induce small current and be transferred to timer, timer receive signal and record puncturing for respective branch
Temporal information.
2. it is according to claim 1 it is a kind of suitable for Multi-example test solid insulation electric life test device, its feature
It is：Described each fuse light emitting diode incorporates in series module using cylinder, is that lucite is constituted；Inside cuts one
The groove of depthkeeping degree and length, for setting up fuse；The erection of fuse is completed by the copper sheet fixture of groove both sides：Groove
Two sides open up little square hole, the two panels copper sheet of placing clamp fuse respectively in certain altitude；When placing fuse, point
Fuse two ends are not inserted between the copper sheet of groove both sides, stretch fuse, copper sheet is clamped by insulating screw and fixes fusing
Silk；The copper sheet of the both sides of the fixed fuse, side are connected with external screw thread copper post, as the high-pressure side for integrating module, are passed through
Overcurrent protection resistance is connected with high voltage power supply, and opposite side is connected with one end pin of light emitting diode, light emitting diode it is another
End is connected with female thread hexagonal copper post, and female thread hexagonal copper post is connected with each branch road test product as the low-pressure side for integrating module；
Whole module of integrating just connects fuse by copper sheet by external screw thread copper post, then by copper sheet connecting luminous diode, and then connect
Female thread hexagonal copper post, formation incorporate in series module；
In module is integrated, the copper sheet of fixed fuse is to be embedded in the square opening of groove both sides, is inlayed in each square opening
Upper and lower two pieces of copper sheets, two pieces of copper sheets are tightened by the screw insulator of top；Two light emitting diodes totally four pins, wherein
Two pins of side are fixed on copper sheet, are formed with copper sheet and are connected in series, two pins and the female thread hexagonal copper of opposite side
Post is fixedly connected, so that fuse is formed with reflective diode connecting；During using integrating module, first by two luminous two
In pole pipe four pins of reversely insertion in parallel；Then, the screw above the copper sheet of both sides is unscrewed, fuse two ends is inserted into two respectively
In the copper sheet of side, stretch and screwing screw is fixed.
3. it is according to claim 2 it is a kind of suitable for Multi-example test solid insulation electric life test device, its feature
It is：The depth of the groove is 35mm, and length is 65mm；The size of the square opening is width 5mm, high 3mm.
4. it is according to claim 1 it is a kind of suitable for Multi-example test solid insulation electric life test device, its feature
It is：Multi-electrode test tank body include stainless steel tank body, lucite cover, 9 lower prop electrodes and 9 upper prop electrodes, 9
The insulation firmware of root electrode bar and fixed electrode and test product；
The stainless steel tank body internal diameter 290mm, external diameter 300mm, the high 150mm of internal container have four bases, high 25mm, tank body bottom
Plate picks out a threaded post, used as earth terminal；9 bottom electrodes of tank interior are fixed by threaded post spiral；Nine electrodes, one
Positioned at tank body circle centre position, 8 are uniformly distributed away from circle centre position radius 85mm in addition；
The lower prop electrode high 20mm, diameter 25mm, are 3mm chamferings with radius；The high 25mm of upper prop electrode, diameter 25mm, it is attached
There is radius to be 3mm chamferings；Upper/lower electrode has internal threaded column, for fixed and connection tank body or electrode bar；
The long 200mm of the electrode bar, diameter 8mm, two ends have external screw thread, and one end is connected with Top electrode, the other end and fuse
LED integral module is connected；
There are 9 holes on the lucite cover, run through cover for electrode bar；
The insulation fastener material is lucite, depending on its size is according to test product size, electrode size and insulating requirements, its knot
Structure is supported by four little pillars by the upper and lower two lucites collar and is connected and composed, and the upper and lower collar entangles upper/lower electrode respectively, reaches
To the effect of fixed electrode；Four little pillars reach the effect of fixed sample, and when electric life test is carried out, do not affect test product
Radiating.
5. it is according to claim 1 it is a kind of suitable for Multi-example test solid insulation electric life test device, its feature
It is：The Rogowsky coil is engaged with timer, for dash current signal when detecting that each branch road punctures simultaneously
The breakdown time information of record respective branch；Rogowsky coil is enclosed within the collecting on earth lead of all branch road samples, sample
When puncturing, the coil-induced dash current for puncturing the moment can produce a small current signal and send timer, the timer to
The detailed temporal information for puncturing the moment is able to record that, including：Date, week and Hour Minute Second；Meanwhile, the timer can be remembered
Record punctures number of times, and can arrange time, browsable, erasing time record information by liquid crystal display screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621095338.0U CN206057497U (en) | 2016-09-29 | 2016-09-29 | Suitable for the solid insulation electric life test device of Multi-example test |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621095338.0U CN206057497U (en) | 2016-09-29 | 2016-09-29 | Suitable for the solid insulation electric life test device of Multi-example test |
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| CN206057497U true CN206057497U (en) | 2017-03-29 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106546883A (en) * | 2016-09-29 | 2017-03-29 | 重庆大学 | A kind of Multi-example solid insulation AC/DC electric life test system |
| CN113125911A (en) * | 2021-04-26 | 2021-07-16 | 国网黑龙江省电力有限公司电力科学研究院 | Direct current aging test device |
| CN113314942A (en) * | 2021-05-25 | 2021-08-27 | 天津凯普林光电科技有限公司 | Power-on device of laser component |
-
2016
- 2016-09-29 CN CN201621095338.0U patent/CN206057497U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106546883A (en) * | 2016-09-29 | 2017-03-29 | 重庆大学 | A kind of Multi-example solid insulation AC/DC electric life test system |
| CN106546883B (en) * | 2016-09-29 | 2019-03-01 | 重庆大学 | A kind of Multi-example solid insulation AC/DC electric life test macro |
| CN113125911A (en) * | 2021-04-26 | 2021-07-16 | 国网黑龙江省电力有限公司电力科学研究院 | Direct current aging test device |
| CN113314942A (en) * | 2021-05-25 | 2021-08-27 | 天津凯普林光电科技有限公司 | Power-on device of laser component |
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