CN108919077A - A kind of Hi-pot test device of insulating materials - Google Patents
A kind of Hi-pot test device of insulating materials Download PDFInfo
- Publication number
- CN108919077A CN108919077A CN201810916107.9A CN201810916107A CN108919077A CN 108919077 A CN108919077 A CN 108919077A CN 201810916107 A CN201810916107 A CN 201810916107A CN 108919077 A CN108919077 A CN 108919077A
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- China
- Prior art keywords
- electrode
- plate
- guide rail
- insulating materials
- slide plate
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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
Abstract
The invention discloses a kind of Hi-pot test devices of insulating materials,Including rocker elements,Slide plate,First electrode,Second electrode and connection surround a upper opening,The left plate of the closed cavity in four sides and bottom,Right side plate,Front side board,Back side panel and bottom plate,The first guide rail is equipped on the inside of the front side board,The second guide rail is equipped on the inside of the back side panel,First guide rail and the second guide rail are parallel to each other,The slide plate is located in the cavity and between the left plate and right side plate,And it is slidably connected respectively with first guide rail and the second guide rail,The rocker elements are connect with the slide plate,The first electrode is fixedly connected on the inside of the right side plate,The second electrode is fixedly connected on side of the slide plate towards the right side plate,And the central axis of the first electrode and second electrode is on the same line.The present invention can accurately measure the electrical strength of chip solid insulating materials, and the device of the invention is simple and easy to operate.
Description
Technical field
The present invention relates to electric insulation fields, more particularly to a kind of Hi-pot test device of insulating materials.
Background technique
With the development of power technology, solid insulating material has obtained greatly by excellent insulation performance in power equipment
Amount application.Continuous soaring with voltage of power grade, to the insulation performance of insulating materials, more stringent requirements are proposed.It is insulating
In the research and development of material, the electrical strength of insulating materials is the evaluation most important reference of insulating material properties.
For the measurement of the electrical strength of solid insulating material, country has formulated corresponding testing standard《GB/T 1408-
2016 insulating materials electrical strength test methods》,《GB/T 1695-2005 vulcanized rubber power frequency breakdown strength proof voltage measurement side
Method》Deng.The geomery of electrode specified in standard, but do not provide a set of complete electrode assembly.Insulating materials it is electrical
The measurement of intensity requires insulating materials during test to be in electric field as uniform as possible, if the electric field under test electrode is
Inhomogeneous field may puncture when local field strength is more than the electrical strength of insulating materials, so that the electricity of insulating materials
Gas intensity measurements are less than normal, for the generation for avoiding the unexpected electric discharge such as creeping discharge during test, test electrode and absolutely
Edge material needs to be immersed in transformer oil.
It is uniform electric field that the measurement of insulating materials electrical strength, which requires the electric field under test electrode, and this requires height piezoelectricity
Pole surface is smooth and the round and smooth processing of the reasonable chamfering in edge, and be furthermore easy to ignore is, it is necessary to guarantee high-low pressure as far as possible
The concentric alignment of electrode.The smooth and edge processing of electrode surface gives specific requirement in a standard, and in practical machine
It is easy to accomplish in tool processing.But in transformer oil, some difficulties of the concentric alignment of high-low pressure electrode are realized, once high-low pressure
Electrode concentric cannot be aligned, and the breakdown for being clipped in two interelectrode insulating materials just is easy to occur in the higher electricity of internal field
Pole edge causes the electrical strength of measurement relatively low.
Summary of the invention
To make up for the shortcomings of the above existing technologies, the present invention proposes a kind of Hi-pot test device of insulating materials.
Technical problem of the invention is resolved by technical solution below：
A kind of Hi-pot test device of insulating materials, including rocker elements, slide plate, first electrode, second electrode with
And connection surrounds the left plate, right side plate, front side board, back side panel and bottom of a upper opening, the closed cavity in four sides and bottom
Plate is equipped with the first guide rail on the inside of the front side board, and the second guide rail, first guide rail and the are equipped on the inside of the back side panel
Two guide rails are parallel to each other, and the slide plate is located in the cavity and between the left plate and right side plate, and respectively with institute
It states the first guide rail and the second guide rail is slidably connected, the rocker elements are connect with the slide plate, and the first electrode is fixedly connected
On the inside of the right side plate, the second electrode is fixedly connected on side of the slide plate towards the right side plate, and described
The central axis of first electrode and second electrode is on the same line.
Preferably, the rocker elements include screw rod and handle, and the screw rod passes through the left plate and the left plate
It is threadedly coupled, one end of the screw rod is fixedly connected on the slide plate, and the other end of the screw rod is connect with the handle.
Preferably, the groove of several strips is equipped on the inside of the front side board, as first guide rail, correspondingly,
The groove of several strips, as second guide rail, the slide plate and each groove are equipped on the inside of the back side panel
All it is clamped.
Preferably, in the first electrode and second electrode, one of electrode is as high-field electrode, another electrode
As grounding electrode.
Preferably, the first electrode is as grounding electrode, and the second electrode is as high-field electrode.
Preferably, the rocker elements are connected to the medium position of the slide plate.
Preferably, the first electrode and second electrode are close to the bottom plate.
The beneficial effect of the present invention compared with the prior art includes：One electrode is arranged on slide plate the present invention, and one
Electrode is connected on right side plate, and slide plate and right side plate are parallel to each other, and the mass axis of two electrodes is on the same straight line, sliding
Plate can only move in parallel under the limitation of guide rail relative to right side plate, and realizing the concentric of two electrodes is alignment always,
So that the measurement of the electrical strength of solid insulating material is more accurate, and the present apparatus is simple and easy to operate.
Detailed description of the invention
Fig. 1 is the stereoscopic schematic diagram of the Hi-pot test device of the insulating materials in the preferred embodiment of the present invention；
Fig. 2 is the schematic top plan view of Fig. 1.
Specific embodiment
Below against attached drawing and in conjunction with preferred embodiment, the invention will be further described.It should be noted that
In the case where not conflicting, the features in the embodiments and the embodiments of the present application be can be combined with each other.
It should be noted that the positional terms such as left and right, upper and lower, top, bottom in the present embodiment, are only relatively general each other
It reads, or is to refer to, and should not be regarded as restrictive with the normal operating condition of product.
In a preferred embodiment, as illustrated in fig. 1 and 2, a kind of Hi-pot test device of insulating materials includes shaking
Rod unit 1, slide plate 2, first electrode 3, second electrode 4 and connection surround a upper opening, the closed chamber in four sides and bottom
Left plate 6, right side plate 7, front side board 8, back side panel 9 and the bottom plate 10 of body 5 are equipped with the first guide rail 81, rear on the inside of front side board 8
The second guide rail 91 is equipped on the inside of side plate 9, the first guide rail 81 and the second guide rail 91 are parallel to each other, and slide plate 2 is located in cavity 5 and is located at
Between left plate 6 and right side plate 7, and it is slidably connected respectively with the first guide rail 81 and the second guide rail 91, rocker elements 1 and slide plate 2
Connection, first electrode 3 are fixedly connected on 7 inside of right side plate, and second electrode 4 is fixedly connected on side of the slide plate 2 towards right side plate 7
On, and the central axis of first electrode 3 and second electrode 4 is on the same line.
In the preferred embodiment, rocker elements 1 include screw rod 11 and handle 12, and screw rod 11 passes through left plate 6 and left side
Plate 6 is threadedly coupled, and one end of screw rod 11 is fixedly connected on slide plate 2, and the other end of screw rod 11 is connect with handle 12, rotates screw rod
11, slide plate 2 can be pushed to move forward or back in parallel along guide rail.
In this example, the groove of several strips is equipped on the inside of front side board 8, as the first guide rail, correspondingly, in rear side
The groove of several strips is equipped on the inside of plate 9, as the second guide rail, slide plate 2 and each groove part are clamped, and are guaranteed in movement
During slide plate, two electrodes are concentric always.In first electrode and second electrode, one of electrode is as high-voltage electricity
Pole, another electrode is as grounding electrode, and in this example, first electrode 3 is used as grounding electrode, and second electrode 4 is used as high-field electrode,
In testing, for first electrode with skateboarding, second electrode is fixed.
More to guarantee that slide plate 2 is parallel with right side plate 7 always during the motion and then ensures that two electrodes are coaxial always
Rocker elements 1 are preferably connected to the medium position of slide plate 2 by the heart.
Cavity 5 will fill transformer oil when with the Hi-pot test device to test as oil groove, so that two electrodes
It is completely submerged in transformer oil with sample to be tested.To guarantee that two electrodes and sample to be tested are completely submerged in
In transformer oil, preferably first electrode 3 and second electrode 4 are arranged close to bottom plate 10.
In the present invention, geomery of two electrodes etc. uses《The examination of GB/T 1408-2016 insulating materials electrical strength
Proved recipe method》,《GB/T 1695-2005 vulcanized rubber power frequency breakdown strength proof voltage measuring method》The geomery Deng specified in.
Wherein, two electrodes are metal material, such as select copper or stainless steel；Some fastening screws and screw rod in device etc. are generally also selected
Use metal material；Other component is ambroin, such as tempered glass, polytetrafluoroethylene (PTFE).
The device of the invention can measure breakdown voltage and compressive resistance of chip solid insulating materials etc., for example,
The chamber intracorporal for filling transformer oil is put by a diameter 100mm, with a thickness of the silicon rubber sheet solid sample of 1.95mm
Between one electrode 3 and second electrode 4；Screw rod 11 is rotated, so that first electrode 3 and second electrode 4 clamp sample, then second is electric
Pole 4 connects high pressure, and first electrode 3 is grounded, and is boosted with the rate of pressure rise average rate of 1kV/s, until puncturing.
The device of the invention can be realized the measurement of tabular solid insulating material frequency breakdown voltage and dielectric strength；?
It can be realized the measurement of tabular solid insulating material dc breakdown voltage and compressive resistance.
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be said that
Specific implementation of the invention is only limited to these instructions.For those skilled in the art to which the present invention belongs, it is not taking off
Under the premise of from present inventive concept, several equivalent substitute or obvious modifications can also be made, and performance or use is identical, all answered
When being considered as belonging to protection scope of the present invention.
Claims (7)
1. a kind of Hi-pot test device of insulating materials, it is characterised in that：Including rocker elements, slide plate, first electrode,
Two electrodes and connection surround a upper opening, the left plate of the closed cavity in four sides and bottom, right side plate, front side board, after
Side plate and bottom plate, on the inside of the front side board be equipped with the first guide rail, on the inside of the back side panel be equipped with the second guide rail, described first
Guide rail and the second guide rail are parallel to each other, and the slide plate is located in the cavity and between the left plate and right side plate, and
It is slidably connected respectively with first guide rail and the second guide rail, the rocker elements are connect with the slide plate, the first electrode
It is fixedly connected on the inside of the right side plate, the second electrode is fixedly connected on side of the slide plate towards the right side plate
On, and the central axis of the first electrode and second electrode is on the same line.
2. the Hi-pot test device of insulating materials as described in claim 1, it is characterised in that：The rocker elements include
Screw rod and handle, the screw rod pass through the left plate and are threadedly coupled with the left plate, and one end of the screw rod is fixedly connected
On the slide plate, the other end of the screw rod is connect with the handle.
3. the Hi-pot test device of insulating materials as described in claim 1, it is characterised in that：It is set on the inside of the front side board
There is the groove of several strips, as first guide rail, correspondingly, several strips is equipped on the inside of the back side panel
Groove, as second guide rail, the slide plate and each groove part are clamped.
4. the Hi-pot test device of insulating materials as described in claim 1, it is characterised in that：In the first electrode and
In second electrode, one of electrode is as high-field electrode, another electrode is as grounding electrode.
5. the Hi-pot test device of insulating materials as claimed in claim 4, it is characterised in that：The first electrode conduct
Grounding electrode, the second electrode is as high-field electrode.
6. the Hi-pot test device of insulating materials as claimed in claim 1 or 2, it is characterised in that：The rocker elements
It is connected to the medium position of the slide plate.
7. the Hi-pot test device of insulating materials as described in claim 1, it is characterised in that：The first electrode and
Two electrodes are close to the bottom plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810916107.9A CN108919077A (en) | 2018-08-13 | 2018-08-13 | A kind of Hi-pot test device of insulating materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810916107.9A CN108919077A (en) | 2018-08-13 | 2018-08-13 | A kind of Hi-pot test device of insulating materials |
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| Publication Number | Publication Date |
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| CN108919077A true CN108919077A (en) | 2018-11-30 |
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| CN201810916107.9A Pending CN108919077A (en) | 2018-08-13 | 2018-08-13 | A kind of Hi-pot test device of insulating materials |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110850250A (en) * | 2019-11-28 | 2020-02-28 | 哈尔滨理工大学 | Insulating material electric-resistance experiment flat plate electrode device for providing dynamic pressure and experiment method |
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| KR19980020915A (en) * | 1996-09-13 | 1998-06-25 | 서두칠 | Withstand voltage tester of insulation material |
| JP2000009789A (en) * | 1998-06-19 | 2000-01-14 | Hitachi Ltd | Withstand voltage test method for insulating material |
| CN203909218U (en) * | 2014-03-19 | 2014-10-29 | 国家电网公司 | Device for determination of insulation characteristics of oil paper |
| CN204008968U (en) * | 2014-03-19 | 2014-12-10 | 国家电网公司 | A kind of test unit and pilot system thereof of measuring paper oil insulation characteristic |
| CN105717434A (en) * | 2016-03-30 | 2016-06-29 | 国家电网公司 | Electrode device for measuring electrical strength of composite insulator silicon rubber umbrella skirt and measuring method |
| CN106405359A (en) * | 2016-11-17 | 2017-02-15 | 西北核技术研究所 | Insulating oil test oil cup for 100 kV pulse voltage |
| CN207148225U (en) * | 2017-08-17 | 2018-03-27 | 南方电网科学研究院有限责任公司 | Composite insulating material dielectric spectroscopy test device |
-
2018
- 2018-08-13 CN CN201810916107.9A patent/CN108919077A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19980020915A (en) * | 1996-09-13 | 1998-06-25 | 서두칠 | Withstand voltage tester of insulation material |
| JP2000009789A (en) * | 1998-06-19 | 2000-01-14 | Hitachi Ltd | Withstand voltage test method for insulating material |
| CN203909218U (en) * | 2014-03-19 | 2014-10-29 | 国家电网公司 | Device for determination of insulation characteristics of oil paper |
| CN204008968U (en) * | 2014-03-19 | 2014-12-10 | 国家电网公司 | A kind of test unit and pilot system thereof of measuring paper oil insulation characteristic |
| CN105717434A (en) * | 2016-03-30 | 2016-06-29 | 国家电网公司 | Electrode device for measuring electrical strength of composite insulator silicon rubber umbrella skirt and measuring method |
| CN106405359A (en) * | 2016-11-17 | 2017-02-15 | 西北核技术研究所 | Insulating oil test oil cup for 100 kV pulse voltage |
| CN207148225U (en) * | 2017-08-17 | 2018-03-27 | 南方电网科学研究院有限责任公司 | Composite insulating material dielectric spectroscopy test device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110850250A (en) * | 2019-11-28 | 2020-02-28 | 哈尔滨理工大学 | Insulating material electric-resistance experiment flat plate electrode device for providing dynamic pressure and experiment method |
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