CN104569773A - Insulating material pressure-resistant performance test cup and use method - Google Patents
Insulating material pressure-resistant performance test cup and use method Download PDFInfo
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- CN104569773A CN104569773A CN201510007858.5A CN201510007858A CN104569773A CN 104569773 A CN104569773 A CN 104569773A CN 201510007858 A CN201510007858 A CN 201510007858A CN 104569773 A CN104569773 A CN 104569773A
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Abstract
The invention discloses an insulating material pressure-resistant performance test cup and a use method. After an insulating base grounding electrode is tightened, transformer oil in the test cup will not seep out; in the pressure resisting process, the test cup will not be damaged; if a sample is broken down, the test cup can be used repeatedly just by replacing a sealing rubber ring at the bottom of the test cup; only different sample pieces need to be replaced in each test, and all kinds of different flaky insulating materials can be subjected to power-frequency pressure-resisting tests. According to the test cup, the requirement for the sample area is not high, the sample area is determined, smooth development of the tests can be guaranteed without making the sample area large enough, and a guarantee is provided for the power-frequency pressure-resisting tests of plate-like insulating materials and the flaky insulating materials with a limited area; the test cup is small in size, the structure and shape of a container containing surrounding media are specified, test devices are normalized, and operation is facilitated.
Description
Technical field
The invention belongs to insulating material and carry out power frequency withstand test technical field, particularly relate to a kind of insulating material withstand voltage properties test cup and using method.
Background technology
In order to judge the state of insulation of insulating material, various test and detection need be carried out to insulation.AC voltage withstand test applies a lot of trial voltage higher than operating voltage to insulation of electrical installation, check its dielectric level according to the tolerance situation of electrical equipment to trial voltage, effectively can find the reduction of the insulating material compressive resistance caused because of various defect.Industrial frequency AC withstand voltage test is the most effective and the most direct method of inspection insulation of electrical installation intensity.At present power frequency withstand test is carried out mostly according to the regulation of " GB/T1408.1-2006 insulating material electrical strength test method part 1: test under power frequency " to tabular and sheet insulating material, sample is placed in and does not carry out industrial frequency withstand voltage test between equal diameter electrode or equal diameter electrode.During test, in order to prevent occurring flashover in process, usually adopt following two kinds of technological means: 1, for the test perpendicular to material surface, accomplished by the area of sample enough large; 2, be placed on by sample in the surrounding media for preventing flashover from choosing and test, under most cases, the transformer oil meeting IEC60296-2003 is the most applicable medium.Only regulation is made to the shape of withstand voltage electrode, structure and size in standard, and technician is when carrying out power frequency withstand test operation, owing to lacking Area of Sample size and the definite regulation holding surrounding media container, can only empirically specify voluntarily uncertain link in test, to such an extent as to the even frequent flashover of test findings instability, cause test failure.Therefore, be necessary to study insulating material industrial frequency withstand voltage performance testing device Method of Spreading Design.
Summary of the invention
The object of the embodiment of the present invention is to provide a kind of insulating material withstand voltage properties test cup and using method, be intended to solve when carrying out power frequency withstand test operation, owing to lacking Area of Sample size and the definite regulation holding surrounding media container, can only empirically specify voluntarily uncertain link in test, to such an extent as to the even frequent flashover of test findings instability, cause the problem of test failure.
The embodiment of the present invention is achieved in that a kind of insulating material withstand voltage properties test cup, and this insulating material withstand voltage properties test cup comprises: high-field electrode, insulating lid, test glass, insulating washer, sample, ground-electrode, insulator foot;
High-field electrode is through insulating lid, and insulating lid is placed on the top of test glass, and insulator foot is arranged on the least significant end of test glass, and insulating washer, sample and ground-electrode are from up to down placed successively in the top of insulator foot.
Further, in this insulating material withstand voltage properties test cup, adopt thickness to be the round insulation sample of 1mm, diameter 40mm, industrial frequency withstand voltage part of detecting is carried out to sample and adopts cup-like structure.
Further, this insulating material withstand voltage properties test cup tests the sample need changing different round insulation at every turn.
Further, insulating lid adopts nylon material.
Further, the using method of this insulating material withstand voltage properties test cup comprises the following steps:
Step one, regulates the position at the bottom of insulating washer and test cup, and the sample that sheet insulated is positioned between insulating washer and insulator foot, together with test cup being tightened to insulator foot;
Step 2, pours the transformer oil meeting IEC60296-2003 and specify into, adjusts fuel head in test cup;
Step 3, covers insulating lid, is rotated to test cup by high-field electrode by screw thread always, together with specimen surface close contact;
Step 4, ground wire, power supply, detection experiment circuit;
Step 5, setting trial voltage, on-test.
Insulating material withstand voltage properties test cup provided by the invention and using method, after being tightened by insulator foot ground-electrode, the transformer oil in test cup can not ooze out, in withstand voltage process, can not be destroyed, if sample punctures, only need change test cup sealed bottom cushion rubber, namely can reuse; Each test only need change different coupons, can carry out power frequency withstand test to various different sheet insulating material.Test cup of the present invention requires little to Area of Sample, and Area of Sample is determined, need not accomplish can to carry out smoothly by warranty test enough greatly, provides guarantee for the tabular of limited area and sheet insulating material carry out industrial frequency withstand voltage test; Test cup volume is little, the structure, the shape that hold surrounding media container are specified, test unit normalization, convenient operation, solving when carrying out power frequency withstand test operation preferably, owing to lacking Area of Sample size and the definite regulation holding surrounding media container, can only empirically specify voluntarily uncertain link in test, to such an extent as to the even frequent flashover of test findings instability, cause the problem of test failure.
Accompanying drawing explanation
Fig. 1 is the structural representation of the insulating material withstand voltage properties test cup that the embodiment of the present invention provides;
In figure: 1, high-field electrode; 2, insulating lid; 3, test glass; 4, insulating washer; 5, sample; 6, ground-electrode; 7, insulator foot;
Fig. 2 is the using method process flow diagram of the insulating material withstand voltage properties test cup that the embodiment of the present invention provides.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Below in conjunction with drawings and the specific embodiments, application principle of the present invention is further described.
As shown in Figure 1, the insulating material withstand voltage properties test cup of the embodiment of the present invention is primarily of high-field electrode 1, insulating lid 2, test glass 3, insulating washer 4, sample 5, ground-electrode 6, insulator foot 7;
High-field electrode 1 is through insulating lid 2, and insulating lid 2 is placed on the top of test glass 3, and insulator foot 7 is arranged on the least significant end of test glass 3, and insulating washer 4, sample 5 and ground-electrode 6 are from up to down placed successively in the top of insulator foot 7; Insulating lid 2 adopts nylon material.
As shown in Figure 2, the using method of the insulating material withstand voltage properties test cup of the embodiment of the present invention comprises the following steps:
S101: regulate the position at the bottom of insulating washer and test cup, the sample that sheet insulated is positioned between insulating washer and insulator foot, together with test cup being tightened to insulator foot;
S102: pour the transformer oil meeting IEC60296-2003 and specify in test cup, adjust fuel head;
S103: cover insulating lid, is rotated high-field electrode to test cup by screw thread always, together with specimen surface close contact;
S104: ground wire, power supply, detection experiment circuit;
S105: setting trial voltage, on-test.
Principle of work of the present invention: adopt thickness to be the round insulation coupons of 1mm, diameter 40mm in test cup, industrial frequency withstand voltage part of detecting is carried out to sample and adopts cup-like structure, the transformer oil as surrounding media can be filled in cup, circular open is provided with bottom test cup, high pressure is introduced in cup through the insulating lid of this test cup by high-field electrode, by applying voltage to sample at the bottom of screw thread rotation to cup, ground-electrode is embedded on the insulator foot bottom test cup, and insulator foot can be fixed together with test cup by rotary threaded.
After insulator foot ground-electrode is tightened by the present invention, the transformer oil in test cup can not ooze out, and in withstand voltage process, can not be destroyed, if sample punctures, only need change test cup sealed bottom cushion rubber, namely can reuse; Each test only need change different coupons, can carry out power frequency withstand test to various different sheet insulating material.Test cup of the present invention requires little to Area of Sample, and Area of Sample is determined, need not accomplish can to carry out smoothly by warranty test enough greatly, provides guarantee for the tabular of limited area and sheet insulating material carry out industrial frequency withstand voltage test; Test cup volume is little, specifies, test unit normalization, convenient operation to structure, the shape holding surrounding media container.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. an insulating material withstand voltage properties test cup, is characterized in that, this insulating material withstand voltage properties test cup comprises: high-field electrode, insulating lid, test glass, insulating washer, sample, ground-electrode, insulator foot;
High-field electrode is through insulating lid, and insulating lid is placed on the top of test glass, and insulator foot is arranged on the least significant end of test glass, and insulating washer, sample and ground-electrode are from up to down placed successively in the top of insulator foot.
2. insulating material withstand voltage properties test cup as claimed in claim 1, is characterized in that, adopts thickness to be the round insulation sample of 1mm, diameter 40mm, carry out industrial frequency withstand voltage part of detecting adopt cup-like structure to sample in this insulating material withstand voltage properties test cup.
3. insulating material withstand voltage properties test cup as claimed in claim 1, it is characterized in that, this insulating material withstand voltage properties test cup tests the sample need changing different round insulation at every turn.
4. insulating material withstand voltage properties test cup as claimed in claim 1, is characterized in that, insulating lid adopts nylon material.
5. an insulating material withstand voltage properties test cup as claimed in claim 1, is characterized in that, the using method of this insulating material withstand voltage properties test cup comprises the following steps:
Step one, regulates the position at the bottom of insulating washer and test cup, and the sample that sheet insulated is positioned between insulating washer and insulator foot, together with test cup being tightened to insulator foot;
Step 2, pours the transformer oil meeting IEC60296-2003 and specify into, adjusts fuel head in test cup;
Step 3, covers insulating lid, is rotated to test cup by high-field electrode by screw thread always, together with specimen surface close contact;
Step 4, ground wire, power supply, detection experiment circuit;
Step 5, setting trial voltage, on-test.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510007858.5A CN104569773A (en) | 2015-01-08 | 2015-01-08 | Insulating material pressure-resistant performance test cup and use method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510007858.5A CN104569773A (en) | 2015-01-08 | 2015-01-08 | Insulating material pressure-resistant performance test cup and use method |
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| CN104569773A true CN104569773A (en) | 2015-04-29 |
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| CN201510007858.5A Pending CN104569773A (en) | 2015-01-08 | 2015-01-08 | Insulating material pressure-resistant performance test cup and use method |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201804025U (en) * | 2010-09-01 | 2011-04-20 | 麦可罗泰克（常州）产品服务有限公司 | 50kV high-voltage fixture for tests of electrical strength of insulating materials |
| CN102628906A (en) * | 2012-04-24 | 2012-08-08 | 天津市电力公司 | Aging test device of cross linked polyethylene (XLPE) medium voltage cable water tree |
| CN202676859U (en) * | 2012-06-28 | 2013-01-16 | 咸阳供电局 | Novel withstand voltage test device for insulating cover |
| CN204008987U (en) * | 2014-07-23 | 2014-12-10 | 国家电网公司 | A kind of solid insulating material electrical strength test oil is bathed cup |
-
2015
- 2015-01-08 CN CN201510007858.5A patent/CN104569773A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201804025U (en) * | 2010-09-01 | 2011-04-20 | 麦可罗泰克（常州）产品服务有限公司 | 50kV high-voltage fixture for tests of electrical strength of insulating materials |
| CN102628906A (en) * | 2012-04-24 | 2012-08-08 | 天津市电力公司 | Aging test device of cross linked polyethylene (XLPE) medium voltage cable water tree |
| CN202676859U (en) * | 2012-06-28 | 2013-01-16 | 咸阳供电局 | Novel withstand voltage test device for insulating cover |
| CN204008987U (en) * | 2014-07-23 | 2014-12-10 | 国家电网公司 | A kind of solid insulating material electrical strength test oil is bathed cup |
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Application publication date: 20150429 |
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