CN102592766A - Direct current component restricting resistor in high voltage test - Google Patents
Direct current component restricting resistor in high voltage test Download PDFInfo
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- CN102592766A CN102592766A CN2011100023758A CN201110002375A CN102592766A CN 102592766 A CN102592766 A CN 102592766A CN 2011100023758 A CN2011100023758 A CN 2011100023758A CN 201110002375 A CN201110002375 A CN 201110002375A CN 102592766 A CN102592766 A CN 102592766A
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Abstract
Belonging to the technical field of high voltage tests, the invention provides a direct current component restricting resistor that is used in a high voltage test and convenient to adjust a resistance value and has high safety performance. The resistor is equipped with: resistor ceramic seats, upper connection plates, lower connection plates, resistance rods, an insulating supporting frame, and connecting terminals. The resistance rods are mounted on the insulating supporting frame, and the resistance rods are connected to the upper connection plates and the lower connection plates in series or in parallel according to test requirements for a current value and the resistance value, with the upper connection and the lower connection plates fixed at two ends of the resistance rods. The resistance rods on the outer ends are respectively provided with the connecting terminals. The resistance rods are cylindrical resistance rods made of austenitic steel or ferritic steel or a nickel-chromium-aluminum alloy resistance material, and the lower ends of the resistance rods are provided with screw threads for slightly adjusting the resistance value. As the connection plates are arranged at two ends of the resistance rods, adjustment of the distances between the upper and lower parts of the connection plates can slightly adjust the resistance value of the resistor. The resistor provided in the invention is suitable to be used in the connection and breaking test of a high-voltage alternating-current circuit-breaker for adjusting and restricting the return circuit direct current component of the test.
Description
Technical field
The present invention relates to restriction DC component resistor in a kind of high-voltage test, belong to the high-voltage test techniques field.
Background technology
Restriction DC component resistor is general in the high-voltage test uses in the connection and disjunction test of high-voltage AC breaker, plays the effect of adjustment, limit assay loop DC component.In known technology, existing restriction DC component resistor uses very inconvenient.Existing restriction DC component resistor mainly is to adopt the tabular resistor disc that the insulation dottle pin is housed each other, is installed on the support bar by the serial or parallel connection mode, and insulator is housed at the support bar two ends and the resistor seat is formed.Because structural design is unreasonable, in actual motion, the adjustment of the resistance value of resistor is difficulty very; And be difficult for adjustment accurately, especially when test was out of order, resistor disc was prone to cause distortion under the state of heavy current impact; Cause the resistor short circuit when serious, even have an accident, have hidden danger.Therefore, need a kind of ability security performance high, can conveniently adjust the restriction DC component resistor of resistance.
Summary of the invention
The object of the invention just provides, and a kind ofly can conveniently adjust resistance value, have again higher-security can high-voltage test in restriction DC component resistor.
For realizing above purpose, technical scheme of the present invention is:
Restriction DC component resistor in the high-voltage test, it is provided with: resistor porcelain seat, upper junction plate, lower connecting plate, resistor rod, insulation bracing frame, binding post.Resistor rod is installed on the insulation bracing frame, and the requirement of upper junction plate and lower connecting plate current value and resistance value when testing is the resistor rod serial or parallel connection, and is fixed on the resistor rod two ends, and the resistor rod of outer end is separately installed with binding post.
Restriction DC component resistor in the above-mentioned high-voltage test, said resistor rod are the cylindrical resistor rods of being processed by austenitic steel or ferritic steel or nichrome aluminum alloy resistance material.
Restriction DC component resistor in the above-mentioned high-voltage test, said resistor rod lower end is provided with the screw thread of trickle adjustment resistance value, and connecting plate is installed in the resistor rod two ends, the resistance that adjustment connecting plate distance up and down can trickle adjustment resistor.
Because the present invention designs and adopted such scheme, it is unreasonable to have solved existing high voltage resistor structural design effectively, and the adjustment resistance value is difficult in the actual motion, has the problem of potential safety hazard.Show through result of the test, it compared with prior art, it is new to have structure; Be prone to adjustment, indeformable in the high-voltage large current test, advantage such as stable safe in utilization; Be applicable in the connection and disjunction test of high-voltage AC breaker adjustment, limit assay loop DC component.
Description of drawings
Accompanying drawing is the sketch map of the embodiment of the invention.
Embodiment
Below through specific instantiation execution mode of the present invention is described, those skilled in the art can understand advantage of the present invention and effect easily by the content that specification disclosed.The present invention also can implement or uses through other different instantiations, and each item details in this specification also can be based on different viewpoints and application, carries out various modifications and change under the spirit of the present invention not deviating from.
The sketch map of the embodiment of the invention is provided with shown in accompanying drawing: resistor porcelain seat 1, lower connecting plate 2, resistor rod 3, upper junction plate 4, insulation bracing frame 5, binding post 6.The outsourcing piece that resistor porcelain seat 1 is made for prior art; It is the red copper row of 10mm that lower connecting plate 2, upper junction plate 4 adopt thickness; Resistor rod 3 adopts diameters to be 12mm austenitic steel 18Cr-8Ni, and is nonmagnetic, serviceability temperature-196 ℃～800 ℃; Insulation bracing frame 5 adopts the thick epoxy laminated board of 20mm to make; Binding post 6 is undertaken fastening by 2 M16 bolts.The quantity or the serial or parallel connection that change resistor rod 3 can obtain different resistance values, regulate the distance of lower connecting plate 2 on resistor rod 3, can accurately adjust the resistance value of resistor.The ceiling voltage of the embodiment of the invention can arrive 40.5kV, and maximum current can arrive 80kA.
The foregoing description is merely exemplary illustration principle of the present invention and effect thereof, but not is used to limit the present invention.Any those skilled in the art all can be under spirit of the present invention and category, and the foregoing description is modified and changed.Therefore, rights protection scope of the present invention should be foundation with the scope of claims.
Claims (3)
1. limit the DC component resistor in the high-voltage test, it is provided with: resistor porcelain seat, upper junction plate, lower connecting plate, resistor rod, insulation bracing frame, binding post.Resistor rod is installed on the insulation bracing frame, and the requirement of upper junction plate and lower connecting plate current value and resistance value when testing is the resistor rod serial or parallel connection, and is fixed on the resistor rod two ends, and the resistor rod of outer end is respectively by binding post is housed.
2. restriction DC component resistor is characterized in that in the high-voltage test according to claim 1, and said resistor rod is the cylindrical resistor rod of being processed by austenitic steel or ferritic steel or nichrome aluminum alloy resistance material.
3. restriction DC component resistor is characterized in that said resistor rod lower end is provided with the screw thread of trickle adjustment resistance value in the high-voltage test according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110002375.8A CN102592766B (en) | 2011-01-07 | 2011-01-07 | Direct current component restricting resistor in high voltage test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110002375.8A CN102592766B (en) | 2011-01-07 | 2011-01-07 | Direct current component restricting resistor in high voltage test |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102592766A true CN102592766A (en) | 2012-07-18 |
| CN102592766B CN102592766B (en) | 2015-02-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110002375.8A Active CN102592766B (en) | 2011-01-07 | 2011-01-07 | Direct current component restricting resistor in high voltage test |
Country Status (1)
| Country | Link |
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| CN (1) | CN102592766B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109901094A (en) * | 2019-04-16 | 2019-06-18 | 贵州电网有限责任公司 | A kind of low-voltage-grade CVT experimental rig and test method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201540787U (en) * | 2009-07-28 | 2010-08-04 | 西安铁路信号工厂 | Modular clamping rail fixing braking resistance |
| CN202003789U (en) * | 2011-01-07 | 2011-10-05 | 苏州电器科学研究院股份有限公司 | Direct-current component limiting resistor in high-voltage test |
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2011
- 2011-01-07 CN CN201110002375.8A patent/CN102592766B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201540787U (en) * | 2009-07-28 | 2010-08-04 | 西安铁路信号工厂 | Modular clamping rail fixing braking resistance |
| CN202003789U (en) * | 2011-01-07 | 2011-10-05 | 苏州电器科学研究院股份有限公司 | Direct-current component limiting resistor in high-voltage test |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109901094A (en) * | 2019-04-16 | 2019-06-18 | 贵州电网有限责任公司 | A kind of low-voltage-grade CVT experimental rig and test method |
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| Publication number | Publication date |
|---|---|
| CN102592766B (en) | 2015-02-18 |
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