CN201130230Y - Group type voltage tolerance test device - Google Patents
Group type voltage tolerance test device Download PDFInfo
- Publication number
- CN201130230Y CN201130230Y CNU2007200991921U CN200720099192U CN201130230Y CN 201130230 Y CN201130230 Y CN 201130230Y CN U2007200991921 U CNU2007200991921 U CN U2007200991921U CN 200720099192 U CN200720099192 U CN 200720099192U CN 201130230 Y CN201130230 Y CN 201130230Y
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- Prior art keywords
- steel ball
- cable
- conducting medium
- voltage withstand
- test
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- Expired - Fee Related
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Abstract
The utility model relates to a clustering voltage withstand testing device, which comprises a pressurization device and a detecting groove with built-in conducting medium; the clustering voltage withstand testing device is characterized in that the conducting medium is microbore steel balls, and the steel balls are laid in the detecting groove and form a steel ball layer. The utility model adopts a scientific and reasonable design, adopts microbore steel balls as conducting medium, overcomes the drawback that the former testing method using conducting liquid as conducting medium fails to give a voltage withstand test to the cables without a waterproof insulation layer; in the test, the cable is buried in the steel ball layer, the steel balls can well roundly contact the outer surface of the tested cable; the electric field distributes evenly and meets the test requirements; the clustering voltage withstand testing device has the advantages of easy operation, high detecting efficiency, and accurate detecting results, thus being a clustering voltage withstand testing device with higher innovativeness.
Description
Technical field
The utility model relates to the voltage-resistant test device of cable, particularly a kind of group-type voltage-withstanding proving installation.
Background technology
At present, for guaranteeing the safety in utilization of cable, before dispatching from the factory, need the proof voltage of cable is carried out sampling Detection, existing method of testing mostly is greatly: cable is positioned in the container that is loaded with conducting medium, make conducting medium be surrounded on cable around, and adopt high-voltage generator to the cable high-pressure, whether detection streamer has punch-through, wherein conducting medium adopts water mostly, and this kind method has simple and easy to do, tests advantages such as accurate.But, this kind method of testing is only applicable to the detection to the cable with water proofing property insulation course, and its external insulation of cable that is applied to compressor set at present adopts the fibrage layer mostly, do not possess water resistance, be soaked in the damage that will cause cable in the water, therefore be not suitable for existing voltage-withstanding test method.And cable different from the past is taken a sample test, and this kind cable must all be detected the proof voltage of every cable before dispatching from the factory, and its test block quantity is big, and the proof voltage group that traditional proving installation can not satisfy this cable surveys requirement.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of testing efficiency height, easy to operate, accurate testing, to the undamaged group-type voltage-withstanding proving installation of tested cable.
A kind of group-type voltage-withstanding proving installation is made of pressue device, the detection groove that is built-in with conducting medium, and it is characterized in that: this conducting medium is little footpath steel ball, and this little footpath steel ball is layed in to detect and forms the steel ball layer in the groove.
And described little footpath steel ball is the steel ball of diameter below 3mm.
And described little footpath steel ball is the mixed body of the steel ball of diameter in 1～3mm.
And the height of described steel ball layer is 10～100mm.
Advantage of the present utility model and good effect are:
1. this proving installation adopts little footpath steel ball as conducting medium, overcome and adopted conducting liquid can't carry out the drawback of voltage-withstand test as the method for testing of conducting medium in the past the cable that insulation course does not have a water resistance, during test cable is fallen into oblivion in the steel ball layer, steel ball can contact with the outside surface of tested cable well comparatively all sidedly, Electric Field Distribution is even, meet test request, it is very convenient to operate.
2. this proving installation is applicable to the many cables that are provided with that are arranged in parallel is tested simultaneously, can shorten detection time greatly, improves detection efficiency, shortens the process time of product in the workshop, thereby increases economic efficiency.
3. this proving installation adopts steel ball as conducting medium, the steel ball that its diameter is more little, Electric Field Distribution is even more, testing result is accurate more, consider that but go out cost and operability get final product when requiring when diameter of the steel ball satisfies to detect, the preferred steel ball of the utility model is the following steel ball of diameter 3mm under certain size, and can adopt the mixed body of the steel ball in 1～3mm, it can be realized fully and the contacted purpose of tested cable outside surface.
4. the utility model scientific structure design is reasonable, easy and simple to handle, detection efficiency is high, testing result is accurate, is a kind of group-type voltage-withstanding proving installation that has than high innovation character.
Description of drawings
Fig. 1 is structural representation of the present utility model (wherein detecting groove for partly cuing open figure);
Fig. 2 is the vertical view of detection groove of the present utility model;
Fig. 3 is the utility model proof voltage test philosophy synoptic diagram;
Fig. 4 is the utility model proof voltage test philosophy synoptic diagram (adopting the different-diameter steel ball to mix).
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is further described, following examples are descriptive, are not determinate, can not limit protection domain of the present utility model with this.
A kind of group-type voltage-withstanding proving installation, constitute by pressue device 1, the detection groove 5 that is built-in with conducting medium, this detection groove is made by the insulation material, and its innovative point is: this conducting medium is that diameter is the following little footpath steel ball 9 of 3mm, and this steel ball is layed in to detect and forms steel ball layer 4 in the groove.Steel ball also can be made by other conducting metal, has same functional effect.Diameter of the steel ball more little itself and the contacted point of tested cable outside surface are also just many more, Electric Field Distribution is even more, and the accuracy of test is also just high more, but considers for factors such as saving cost, the diameter of steel ball is preferably below the 3mm, also can be the mixed body of the steel ball of diameter in 1～3mm.When the steel ball that varies in size was mixed mutually, its steel ball 10 than minor diameter can be filled up in the space that the major diameter steel ball forms, and increased the contact point of steel ball and tested cable surface thus, improved measuring accuracy, simultaneously all during the little steel ball of employings cost low.The height of steel ball layer is 10～100mm, is as the criterion to fall into oblivion tested cable, with 20～50mm the best.If when adopting the steel ball that varies in size to test,, should carry out disturbance to the steel ball layer after use after a while, make it fully mixed, eliminate lamination.
The detection groove of this proving installation has certain width in the horizontal, be suitable for the many cables 3 that are pencil side by side and connect conducting in the end are carried out synchronism detection, concrete mode is: an end part aligning that cable is provided with terminal 2, and be arranged in parallel, adopt conductor 8 that the terminal that cable end connected is connected successively and make its mutual conduction.
The cable parallel laid that arrangement is pencil is in detecting groove, the cable detection section is fallen into oblivion in the steel ball layer, reach the outside surface purpose that steel ball is wrapped in each bar cable comprehensively, and, the conducting portion that cable is provided with terminal is exposed to outside the steel ball layer, the other end is because therefore the cut ring that exists cable core to expose need place its support steel ball layer outside.
The high-pressure side 6 of pressue device is connected on the conductor of portion of terminal of cable, the earth terminal 7 of pressue device is inserted in the steel ball layer that detects in the groove.Regulate pressue device, magnitude of voltage is set, open pressue device, the Cables for Dam Observation test mode in case the cable proof voltage is undesirable, when punch-through occurring, has shownly on pressue device, perhaps produces electric discharge phenomena in detecting groove.At last, the undesirable cable of proof voltage is arranged, promptly return job shop and do over again as finding.
Claims (4)
1. group-type voltage-withstanding proving installation is made of pressue device, the detection groove that is built-in with conducting medium, and it is characterized in that: this conducting medium is little footpath steel ball, and this little footpath steel ball is layed in to detect and forms the steel ball layer in the groove.
2. group-type voltage-withstanding proving installation according to claim 1 is characterized in that: described little footpath steel ball is the steel ball of diameter below 3mm.
3. group-type voltage-withstanding proving installation according to claim 1 is characterized in that: described little footpath steel ball is the mixed body of the steel ball of diameter in 1～3mm.
4. group-type voltage-withstanding proving installation according to claim 1 is characterized in that: the height of described steel ball layer is 10～100mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200991921U CN201130230Y (en) | 2007-12-24 | 2007-12-24 | Group type voltage tolerance test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200991921U CN201130230Y (en) | 2007-12-24 | 2007-12-24 | Group type voltage tolerance test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201130230Y true CN201130230Y (en) | 2008-10-08 |
Family
ID=40018093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200991921U Expired - Fee Related CN201130230Y (en) | 2007-12-24 | 2007-12-24 | Group type voltage tolerance test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201130230Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101603948B (en) * | 2009-07-09 | 2013-11-13 | 株洲时代电气绝缘有限责任公司 | Method and device for on-line withstand voltage detection of film sintered electromagnetic wire |
| CN103760476A (en) * | 2013-12-24 | 2014-04-30 | 兰州空间技术物理研究所 | Device, system and method for testing internal discharge of cables for satellite |
| CN108226716A (en) * | 2016-12-09 | 2018-06-29 | 丹东科亮科技有限公司 | Thermistor voltage-withstand test method |
-
2007
- 2007-12-24 CN CNU2007200991921U patent/CN201130230Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101603948B (en) * | 2009-07-09 | 2013-11-13 | 株洲时代电气绝缘有限责任公司 | Method and device for on-line withstand voltage detection of film sintered electromagnetic wire |
| CN103760476A (en) * | 2013-12-24 | 2014-04-30 | 兰州空间技术物理研究所 | Device, system and method for testing internal discharge of cables for satellite |
| CN103760476B (en) * | 2013-12-24 | 2017-02-01 | 兰州空间技术物理研究所 | Device, system and method for testing internal discharge of cables for satellite |
| CN108226716A (en) * | 2016-12-09 | 2018-06-29 | 丹东科亮科技有限公司 | Thermistor voltage-withstand test method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081008 Termination date: 20101224 |