CN203054022U - Change-over switch for line parameter testing - Google Patents
Change-over switch for line parameter testing Download PDFInfo
- Publication number
- CN203054022U CN203054022U CN 201220706258 CN201220706258U CN203054022U CN 203054022 U CN203054022 U CN 203054022U CN 201220706258 CN201220706258 CN 201220706258 CN 201220706258 U CN201220706258 U CN 201220706258U CN 203054022 U CN203054022 U CN 203054022U
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- CN
- China
- Prior art keywords
- phase
- line parameter
- circuit
- change
- box body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 238000009413 insulation Methods 0.000 claims description 19
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 230000004888 barrier function Effects 0.000 claims description 8
- 238000005259 measurement Methods 0.000 abstract description 7
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 abstract description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000005283 ground state Effects 0.000 description 2
- 238000013329 compounding Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Measurement Of Resistance Or Impedance (AREA)
Abstract
The utility model relates to a circuit testing tool, especially to a change-over switch for line parameter testing. The technical scheme of the change-over switch is characterized in that the switch comprises an insulated box body and insulated baffle plates. A-phase, B-phase, and C-phase electrification circuits are arranged inside the insulated box body; the insulated baffle plates are respectively arranged at the outer sides of the A-phase, B-phase, and C-phase electrification circuits; one ends of the A-phase, B-phase, and C-phase electrification circuits are connected with wiring terminals and the other ends thereof are connected with a bipolar disconnecting link; and a short-circuit gate and a short-circuit grounded gate are arranged outside the insulated box body. According to the utility model, the beneficial effects are as follows: self-operation of line parameter measuring before lines with the voltages of 110KV or above is realized; there is no need to wait for cooperated work of a power transmission operating team and a dispatching running department; the measurement of positive sequence capacitance, zero sequence capacitance, positive sequence impedance, and zero sequence impedance can be completed conveniently and rapidly; and the testing time is substantially shortened and the work efficiency is improved.
Description
Technical field
The utility model relates to a kind of circuit test instrument, particularly a kind of line parameter circuit value test conversion switch.
Background technology
Line parameter circuit value test is the test that 110kV and above overhead transmission line must be done putting into operation before, and the line parameter circuit value value is as computing system short-circuit current, relay protection setting, the distribution of reckoning trend and selects the actual foundation of work such as the reasonable method of operation.
The measuring circuit parameter needs the non-measurement side of circuit to be in open-circuit condition, the earth-free state of three-phase shortcircuit, three-phase shortcircuit and ground state to carry out respectively.The circuit offside need be operated group personnel's compounding practice in the measuring process in the past, instruction is assigned in management and running personnel cooperation, multidisciplinary cooperation can be finished test assignment, the long inefficiency of the loaded down with trivial details test period of intermediate link, the test of finishing a circuit needs 4-6 hour, because time length tends to postpone electric power feeding time.Line parameter circuit value test conversion switch has solved the link that needs multidisciplinary cooperation, the switching manipulation of line parameter circuit value test conversion simply need not other departments and cooperates, three kinds of test modes can be finished by one man operation by this switch, have shortened the test duration greatly, have improved work efficiency.
Summary of the invention
The purpose of this utility model is exactly the above-mentioned defective that exists at prior art, and a kind of line parameter circuit value test conversion switch is provided, and has shortened the test duration greatly, has improved work efficiency.
Its technical scheme is: comprise insulation casing, insulation barrier, the inside of insulation casing arranges A, B, the C three-phase road of connecting wires, the connect wires outside on road of A, B, C three-phase is respectively equipped with insulation barrier, A, B, the C three-phase Lu Yiduan that connects wires connects connection terminal, the other end connects bipolar disconnecting link, and the outside of insulation casing is provided with short circuit sluice gate and short circuit ground connection sluice gate.
The beneficial effects of the utility model are: measure line parameter circuit value before 110KV and above circuit put into operation and realize from line operate, need not to wait for the cooperating of power transformation operation team, management and running department, conveniently finish the measurement of positive sequence electric capacity, zero sequence electric capacity, positive sequence impedance, zero sequence impedance, shorten the test duration greatly, improved work efficiency.
Description of drawings
Accompanying drawing 1 is structural representation of the present utility model;
Among the last figure: insulation casing 1, insulation barrier 2, short circuit sluice gate 3, short circuit ground connection sluice gate 4, bipolar disconnecting link 5, connection terminal 6.
Embodiment
By reference to the accompanying drawings 1, the utility model will be further described:
The utility model comprises insulation casing 1, insulation barrier 2, the inside of insulation casing 1 arranges A, B, the C three-phase road of connecting wires, the connect wires outside on road of A, B, C three-phase is respectively equipped with insulation barrier 2, A, B, the C three-phase Lu Yiduan that connects wires connects connection terminal 6, the other end connects bipolar disconnecting link 5, and the outside of insulation casing 1 is provided with short circuit sluice gate 3 and short circuit ground connection sluice gate 4.
During making, the monolithic case of line parameter circuit value test conversion switch supports with insulating material, measures the end of incoming cables in integrally-built left side, fixes with connection terminal, keeps enough safe distances between the three-phase.The conversion disconnecting link is installed in upside and is convenient to operation, and A, the B of the I of disconnecting link, II both sides, C three-phase are connected wires between the road and to be connected with copper bar, and the disconnecting link II is installed ground terminal and is connected with copper bar with A, B, the C three-phase road of connecting wires.Measure between inlet wire and the every phase in disconnecting link III place and be connected alternate use insulation barrier isolation with copper bar.
The practical operation using method:
The first step is carried out the measurement of test line induced electricity, and need be in disconnecting link the state III this moment, is confirming can to proceed operation after the test line induced voltage is less than 800V.
Second step was the measurement of insulation resistance, and switch remains on state III invariant position.
The 3rd step direct current resistance is measured, and it is the earth-free state of three-phase shortcircuit that the conversion disconnecting link is in state I position.
The measurement of the 4th step positive sequence impedance, zero sequence impedance needs disconnecting link is converted to the state II, i.e. the three-phase shortcircuit ground state.
The measurement of the 5th step positive sequence electric capacity, zero sequence electric capacity needs disconnecting link is converted to the state I, i.e. the earth-free state of three-phase shortcircuit.
Claims (1)
1. line parameter circuit value test conversion switch, it is characterized in that: comprise insulation casing (1), insulation barrier (2), the inside of insulation casing (1) arranges A, B, the C three-phase road of connecting wires, the connect wires outside on road of A, B, C three-phase is respectively equipped with insulation barrier (2), A, B, the C three-phase Lu Yiduan that connects wires connects connection terminal (6), the other end connects bipolar disconnecting link (5), and the outside of insulation casing (1) is provided with short circuit sluice gate (3) and short circuit ground connection sluice gate (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220706258 CN203054022U (en) | 2012-12-19 | 2012-12-19 | Change-over switch for line parameter testing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220706258 CN203054022U (en) | 2012-12-19 | 2012-12-19 | Change-over switch for line parameter testing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203054022U true CN203054022U (en) | 2013-07-10 |
Family
ID=48736962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220706258 Expired - Fee Related CN203054022U (en) | 2012-12-19 | 2012-12-19 | Change-over switch for line parameter testing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203054022U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105116224A (en) * | 2015-07-04 | 2015-12-02 | 国网山东省电力公司东营供电公司 | Novel auxiliary line parameter testing tool and method |
| CN105182012A (en) * | 2015-08-24 | 2015-12-23 | 国网湖南省电力公司带电作业中心 | Distribution test method and wiring device |
-
2012
- 2012-12-19 CN CN 201220706258 patent/CN203054022U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105116224A (en) * | 2015-07-04 | 2015-12-02 | 国网山东省电力公司东营供电公司 | Novel auxiliary line parameter testing tool and method |
| CN105182012A (en) * | 2015-08-24 | 2015-12-23 | 国网湖南省电力公司带电作业中心 | Distribution test method and wiring device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Free format text: FORMER OWNER: SHANDONG ELECTRIC POWER GROUP CORPORATION DONGYING POWER SUPPLY COMPANY Effective date: 20131113 Owner name: DONGYING POWER SUPPLY COMPANY, STATE GRID SHANDONG Free format text: FORMER OWNER: STATE ELECTRIC NET CROP. Effective date: 20131113 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 100031 XICHENG, BEIJING TO: 257091 DONGYING, SHANDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20131113 Address after: 257091 South Road, Dongying District, Shandong, No. 357, No. Patentee after: DONGYING POWER SUPPLY COMPANY, STATE GRID SHANDONG ELECTRIC POWER CO., LTD. Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee before: State Grid Corporation of China Patentee before: Dongying Power Supply Branch of Shandong Electric Power Corporation |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130710 Termination date: 20171219 |