CN202119860U - Current transformer polarity testing box - Google Patents
Current transformer polarity testing box Download PDFInfo
- Publication number
- CN202119860U CN202119860U CN 201120222002 CN201120222002U CN202119860U CN 202119860 U CN202119860 U CN 202119860U CN 201120222002 CN201120222002 CN 201120222002 CN 201120222002 U CN201120222002 U CN 201120222002U CN 202119860 U CN202119860 U CN 202119860U
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- Prior art keywords
- phase
- terminal block
- primary terminal
- current transformer
- disconnecting switch
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- Expired - Fee Related
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- 238000012360 testing method Methods 0.000 title claims abstract description 63
- 239000000463 material Substances 0.000 abstract description 3
- 230000001105 regulatory effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000739 chaotic effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010892 electric spark Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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Abstract
The utility model relates to a current transformer polarity testing box, which comprises a box body. A row of secondary terminal blocks are assembled on the box body, and a row of pointer gauges special for polarity testing are correspondingly connected with the secondary terminal blocks and arranged under the row of secondary terminal blocks. An adjustable resistor is correspondingly connected with the pointer gauges special for polarity testing and arranged under the row of pointer gauges special for polarity testing. An A-phase primary terminal block, a B-phase primary terminal block and a C-phase primary terminal block are arranged on the box body, and an A-phase phase disconnecting switch, a B-phase phase disconnecting switch and a C-phase phase disconnecting switch which correspond to the A-phase primary terminal block, the B-phase primary terminal block and the C-phase primary terminal block and are arranged under the A-phase primary terminal block, the B-phase primary terminal block and the C-phase primary terminal block. Testing buttons are arranged under the A-phase phase disconnecting switch, the B-phase phase disconnecting switch and the C-phase phase disconnecting switch. A power source which is matched with the A-phase primary terminal block, the B-phase primary terminal block, the C-phase primary terminal block, the A-phase phase disconnecting switch, the B-phase phase disconnecting switch, the C-phase phase disconnecting switch and the testing buttons is arranged in the box body. The current transformer polarity testing box can achieve simultaneous testing of three phases, and devices including testing wires, materials, instruments and the like are not required, thereby being high in integrity.
Description
Technical field
The utility model relates to a kind of current transformer polarity test case.
Background technology
Traditional current transformer polarity test is through a dry cell, and external test wire is connected to the current transformer primary side, secondary side joint pointer gauge, and manual click battery plus-negative plate is realized polarity test.The wiring of this kind test method is loaded down with trivial details unordered, and the working site is chaotic, and personnel do not concentrate.Manually click battery plus-negative plate, be easy to generate electric spark, testing crew is damaged, reduce battery and serviceable life pointer gauge.And once can only loop of verification, primary connection also can only the phase-splitting test, does not meet on-the-spot standardization effort requirement.
The utility model content
The purpose of the utility model just is to provide a kind of current transformer polarity test case; It can realize that three-phase tests simultaneously; Prevent to damage current transformer polarity test dedicated pointer table through regulating adjustable resistance, come operating current moment break-make through test button, the scene need not to carry equipment such as test wire, material, instrument; Integrated level is high, can be connected to the current transformer primary side through the special isolation bar.Battery is chargeable, and is firm attractive in appearance, easy and simple to handle, and commutation work can be accomplished in chamber place.
The technical scheme of the utility model is: the utility model comprises a casing; On casing, be equipped with row's secondary connection terminal; Have the corresponding row's polarity test dedicated pointer table that connects at row's secondary connection terminal with the secondary connection terminal; Be arranged with the adjustable resistance with the corresponding connection of polarity test dedicated pointer table at row's polarity test dedicated pointer table; Casing is provided with A, B, C three-phase primary connection terminal; Have the separate cut-out switch of A, B, C three-phase of corresponding A, B, C three-phase primary connection terminal at A, B, C three-phase primary connection terminal, have test button, in casing, be provided with A, B, C three-phase primary connection terminal, A, B, the separate cut-out switch of C three-phase and the supporting power supply of test button at A, B, the separate cut-out switch of C three-phase.
The utility model can be provided with the connecting groove that is used for placing wiring on casing.Said power supply is a rechargeable devices, and is circumscribed with the external plug that is used for external power supply.
This current transformer polarity test case can realize that A, B, C three-phase test simultaneously, prevents the excessive current transformer polarity test dedicated pointer table that damages of electric current through regulating adjustable resistance.The primary connection terminal is connected to the current transformer primary side through lead-in wire; The secondary connection terminal is connected to the Current Transformer Secondary coil through lead-in wire; Come operating current moment break-make through test button, with the polarity correctness of the positive and negative verificating current mutual inductor of pointer gauge secondary connection.
The beneficial effect of the utility model is: the utility model can realize that three-phase tests simultaneously; Prevent to damage current transformer polarity test dedicated pointer table through regulating adjustable resistance; Come operating current moment break-make through test button; The scene need not to carry equipment such as test wire, material, instrument, and integrated level is high, can be connected to the current transformer primary side through the special isolation bar.Battery is chargeable, and is firm attractive in appearance, easy and simple to handle, and commutation work can be accomplished in chamber place.
Description of drawings
Fig. 1 is the said current transformer polarity test of a utility model embodiment case front view (FV);
Fig. 2 is the said current transformer polarity test of a utility model embodiment case rear connection synoptic diagram;
Fig. 3 is the on-the-spot wiring schematic diagram that uses of the said current transformer polarity test of the utility model embodiment case.
1 test wire casing among the figure, 2 secondary connection terminals, 3 primary connection terminals, 4 polarity test dedicated pointer tables, 5 adjustable resistances, 6 separate cut-out switches, 7 is test button, and 8 is power supply, and 9 is external plug.
Embodiment
Comprise a casing 10 like accompanying drawing 1, the embodiment of the utility model shown in 2; On casing 10, be equipped with row's secondary connection terminal 2; Have the corresponding row's polarity test dedicated pointer table 4 that connects at row's secondary connection terminal 2 with the secondary connection terminal; Be arranged with the adjustable resistance 5 with the corresponding connection of polarity test dedicated pointer table at row's polarity test dedicated pointer table 4; Casing is provided with A, B, C three-phase primary connection terminal 3; Have the separate cut-out switch 6 of A, B, C three-phase of corresponding A, B, C three-phase primary connection terminal at A, B, C three-phase primary connection terminal 3, have test button 7, in casing, be provided with A, B, C three-phase primary connection terminal, A, B, the separate cut-out switch of C three-phase and the supporting power supply 8 of test button at A, B, the separate cut-out switch of C three-phase; Power supply 8 is a rechargeable battery in the present embodiment, and it connects the external plug 9 of external power supply.The positive front portion of casing is provided with the connecting groove that is used for placing wiring.This current transformer polarity test case can realize that A, B, C three-phase test simultaneously, prevents the excessive current transformer polarity test dedicated pointer table that damages of electric current through regulating adjustable resistance.Label 3 is connected to the current transformer primary side through lead-in wire, and label 2 is connected to the Current Transformer Secondary coil through lead-in wire, comes operating current moment break-make through label 7 test buttons, with the polarity correctness of the positive and negative verificating current mutual inductor of pointer gauge secondary connection.
As shown in Figure 3 when using at the scene, be connected corresponding separate A phase as shown in Figure 3, B phase, C phase with the current transformer primary side through primary connection terminal 3.On secondary wiring of current mutual inductor side joint to the secondary terminal 2, corresponding separate as shown in the figure.Separate cut-out switch 6 is to cut off battery 8 and primary connection.As cut off switch and get to the conducting shelves, A, B, C three-phase are respectively that battery plus-negative plate joins, and realize the three-phase function of polarity test simultaneously through test button 7.The wiring of Current Transformer Secondary side is connected on the secondary terminal of New type of current mutual inductor polarity test box 2, and secondary terminal 2 interconnects with dedicated pointer table 4 through its back panel wiring and adjustable resistance 5.In test button 7 make and break processes, pointer gauge 4 can just rise or counter rising, thereby realizes the polarity test of current transformer.Control immediate current through regulating adjustable resistance 5, prevent that electric current is excessive and burn out pointer gauge.
Claims (3)
1. current transformer polarity test case; It is characterized in that: comprise a casing; On casing, be equipped with row's secondary connection terminal; Have the corresponding row's polarity test dedicated pointer table that connects at row's secondary connection terminal with the secondary connection terminal; Be arranged with the adjustable resistance with the corresponding connection of polarity test dedicated pointer table at row's polarity test dedicated pointer table, casing is provided with A, B, C three-phase primary connection terminal, has the separate cut-out switch of A, B, C three-phase of corresponding A, B, C three-phase primary connection terminal at A, B, C three-phase primary connection terminal; Have test button at A, B, the separate cut-out switch of C three-phase, in casing, be provided with A, B, C three-phase primary connection terminal, A, B, the separate cut-out switch of C three-phase and the supporting power supply of test button.
2. a kind of current transformer polarity test case according to claim 1 is characterized in that: on casing, be provided with and be used for placing the connecting groove of wiring.
3. a kind of current transformer polarity test case according to claim 1, it is characterized in that: said power supply is a rechargeable devices, and is connected to the external plug that is used for external power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120222002 CN202119860U (en) | 2011-06-28 | 2011-06-28 | Current transformer polarity testing box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120222002 CN202119860U (en) | 2011-06-28 | 2011-06-28 | Current transformer polarity testing box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202119860U true CN202119860U (en) | 2012-01-18 |
Family
ID=45460914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120222002 Expired - Fee Related CN202119860U (en) | 2011-06-28 | 2011-06-28 | Current transformer polarity testing box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202119860U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103884958A (en) * | 2014-04-16 | 2014-06-25 | 国家电网公司 | Polarity tester of current transformer |
| CN104502792A (en) * | 2014-12-11 | 2015-04-08 | 国家电网公司 | Polarity tester for current transformer |
| CN104698228A (en) * | 2015-03-17 | 2015-06-10 | 杨军峰 | Wiring terminal of escalator comprehensive detector |
| CN105044547A (en) * | 2015-07-31 | 2015-11-11 | 国网山东沂源县供电公司 | Current transformer polarity tester |
| CN105527538A (en) * | 2014-09-30 | 2016-04-27 | 国家电网公司 | Polarity test device of current transformer |
| CN105929352A (en) * | 2016-05-13 | 2016-09-07 | 国网山东省电力公司枣庄供电公司 | Combined-type current transformer testing device |
| CN106124922A (en) * | 2016-06-07 | 2016-11-16 | 国网山东省电力公司经济技术研究院 | A kind of three-phase adjustable polarity test table |
| CN106680645A (en) * | 2015-11-10 | 2017-05-17 | 国网辽宁省电力有限公司本溪供电公司 | Current transformer polarity test device |
| CN115389984A (en) * | 2022-08-15 | 2022-11-25 | 国网天津市电力公司 | Mutual inductor polarity identification device and identification method based on non-oscillation over-damping characteristic |
-
2011
- 2011-06-28 CN CN 201120222002 patent/CN202119860U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103884958A (en) * | 2014-04-16 | 2014-06-25 | 国家电网公司 | Polarity tester of current transformer |
| CN105527538A (en) * | 2014-09-30 | 2016-04-27 | 国家电网公司 | Polarity test device of current transformer |
| CN104502792A (en) * | 2014-12-11 | 2015-04-08 | 国家电网公司 | Polarity tester for current transformer |
| CN104698228A (en) * | 2015-03-17 | 2015-06-10 | 杨军峰 | Wiring terminal of escalator comprehensive detector |
| CN104698228B (en) * | 2015-03-17 | 2017-11-14 | 邳州高新区新能源技术研究院有限公司 | Escalator comprehensive detector binding post |
| CN105044547A (en) * | 2015-07-31 | 2015-11-11 | 国网山东沂源县供电公司 | Current transformer polarity tester |
| CN106680645A (en) * | 2015-11-10 | 2017-05-17 | 国网辽宁省电力有限公司本溪供电公司 | Current transformer polarity test device |
| CN105929352A (en) * | 2016-05-13 | 2016-09-07 | 国网山东省电力公司枣庄供电公司 | Combined-type current transformer testing device |
| CN106124922A (en) * | 2016-06-07 | 2016-11-16 | 国网山东省电力公司经济技术研究院 | A kind of three-phase adjustable polarity test table |
| CN115389984A (en) * | 2022-08-15 | 2022-11-25 | 国网天津市电力公司 | Mutual inductor polarity identification device and identification method based on non-oscillation over-damping characteristic |
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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 |
Owner name: STATE ELECTRIC NET CROP. Free format text: FORMER OWNER: SHIJIAZHUANG POWER SUPPLY COMPANY Effective date: 20130410 Owner name: HEBEI ELECTRIC POWER CORPORATION SHIJIAZHUANG POWE Effective date: 20130410 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 050091 SHIJIAZHUANG, HEBEI PROVINCE TO: 100031 XICHENG, BEIJING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20130410 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee after: State Grid Corporation of China Patentee after: Hebei Electric Power Corporation Patentee after: Shijiazhuang Power Supply Co.,Ltd. Address before: 050091 Shijiazhuang power supply company, Hebei, Shijiazhuang Province Patentee before: Shijiazhuang Power Supply Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120118 Termination date: 20180628 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |