CN202602354U - Bridge type current switching device - Google Patents
Bridge type current switching device Download PDFInfo
- Publication number
- CN202602354U CN202602354U CN 201220312563 CN201220312563U CN202602354U CN 202602354 U CN202602354 U CN 202602354U CN 201220312563 CN201220312563 CN 201220312563 CN 201220312563 U CN201220312563 U CN 201220312563U CN 202602354 U CN202602354 U CN 202602354U
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- jack
- transformer
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- switching device
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- 238000004804 winding Methods 0.000 claims description 22
- 239000002184 metal Substances 0.000 claims description 5
- 238000009413 insulation Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
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Abstract
The utility model relates to a bridge type current switching device which aims at solving the problem that an existing current switching device can be opened by using tool when current connection pieces are switched, a secondary open circuit of a current transformer is prone to be generated, and safety of operators and equipment is threatened. A plug seat of the bridge type current switching device comprises six groups of plug holes, terminals of the first group of plug holes of the plug seat are connected with one end of a secondary side coil of the current transformer of a transformer, the other end is connected with terminals of the second group of plug holes, one ends of terminals of the third group of plug holes of the plug seat are connected with a current input end of a overvoltage short circuit protection device, the other current input end is connected with one ends of terminals of the fourth group of plug holes, the first group of plug holes of the plug seat are connected with the third group of plug holes through U-shaped connection bridges, the second group of plug holes of the plug seat are connected with the fourth group of plug holes through U-shaped connection bridges, terminals of the fifth group of plug holes of the plug seat are connected with one end of a secondary side coil of a bypass current transformer of the transformer, and the other end is connected with terminals of the sixth group of plug holes. The bridge type current switching device is suitable for the field of power systems.
Description
Technical field
The utility model relates to field of power.
Background technology
The circuit Microcomputer Protection secondary current switching device shifter that electric power system at present generally adopts is inside and outside hierachical structure; Adopt knob and sheet metal connected mode; Because the compact conformation of device own, each phase gap is less and adopt the knob structure, when switch current in flakes the time; Skin is opened the back in flakes to be difficult to again hand to be reached internal layer fully and will to open in flakes; Sometimes need just can open by instrument, cause Current Transformer Secondary open circuit, problems such as serious threat operating personnel and device security if come in contact bad meeting in the handoff procedure.
The utility model content
The utility model is in order to solve existing current switching device switch current in flakes the time; Need just can open by instrument; Cause the Current Transformer Secondary open circuit easily, and threaten problems such as operating personnel and device security, thereby proposed bridge-type current switching device.
Bridge-type current switching device, it comprises the by-pass current instrument transformer secondary side winding of Current Transformer Secondary lateral coil winding, overvoltage short-circuit protection and the transformer of U type cross structure, socket, transformer,
Described socket comprises 6 groups of jacks,
The terminal of first group of jack of socket is connected with an end of the Current Transformer Secondary lateral coil winding of transformer,
The other end of the Current Transformer Secondary lateral coil winding of transformer is connected with the terminal of second group of jack;
One end of the terminal of the 3rd group of jack of socket is connected with a current input terminal of overvoltage short-circuit protection,
Another current input terminal of overvoltage short-circuit protection is connected with an end of the terminal of the 4th group of jack;
First group of jack of socket is connected with the 3rd group of jack through U type cross structure,
Second group of jack of socket is connected with the 4th group of jack through U type cross structure;
The terminal of the 5th group of jack of socket is connected with an end of the by-pass current instrument transformer secondary side winding of transformer,
The other end of the by-pass current instrument transformer secondary side winding of transformer is connected with the terminal of the 6th group of jack.
Description of drawings
Fig. 1 is the rear connection figure of bridge-type current switching device;
Fig. 2 is the structural representation of U type cross structure;
Fig. 3 is the structural representation of jack;
Fig. 4 is the handoff procedure sketch map of by-pass current instrument transformer secondary side winding of Current Transformer Secondary lateral coil winding and the transformer of transformer;
Fig. 5 is the connection sketch map that the by-pass current instrument transformer secondary side winding of transformer replaces the Current Transformer Secondary lateral coil winding of transformer.
Embodiment
Embodiment one, combination Fig. 1 specify this execution mode; The described bridge-type current switching of this execution mode device; It comprises the by-pass current instrument transformer secondary side winding 5 of Current Transformer Secondary lateral coil winding 3, overvoltage short-circuit protection 4 and the transformer of U type cross structure 1, socket 2, transformer
Described socket 2 comprises 6 groups of jacks,
The terminal of first group of jack of socket 2 is connected with an end of the Current Transformer Secondary lateral coil winding 3 of transformer,
The other end of the Current Transformer Secondary lateral coil winding 3 of transformer is connected with the terminal of second group of jack;
One end of the terminal of the 3rd group of jack of socket 2 is connected with a current input terminal of overvoltage short-circuit protection 4, and the other end of the terminal of the 3rd group of jack is A,
Another current input terminal of overvoltage short-circuit protection 4 is connected with an end of the terminal of the 4th group of jack; The other end of one end of the terminal of the 4th group of jack is B, connects output voltage between B and the A;
First group of jack of socket 2 is connected with the 3rd group of jack through U type cross structure 1,
Second group of jack of socket 2 is connected with the 4th group of jack through U type cross structure 1;
The terminal of the 5th group of jack of socket 2 is connected with an end of the by-pass current instrument transformer secondary side winding 5 of transformer,
The other end of the by-pass current instrument transformer secondary side winding 5 of transformer is connected with the terminal of the 6th group of jack.
Two cover inserter structures about this execution mode changes original inside and outside layering knob current switching device into; When carrying out the current switching operation; Only need insert each successively or extract in the corresponding jack by operating procedure in flakes mutually and get final product complete operation, not only save time but also laborsaving; Reduce Field Force's operation easier, improve grid switching operation efficient, shorten operation and emergency episode processing time, apparatus structure is simple, and terminal position more intuitively is convenient to inspection, improves operational reliability.
Embodiment two, combination Fig. 2 specify this execution mode, and this execution mode is that with the difference of embodiment one described bridge-type current switching device the plug of described U type cross structure 1 is a cylindrical shape, and inside is the annular resilient sheet metal.
Embodiment three, combination Fig. 3 specify this execution mode; This execution mode is that with the difference of embodiment two described bridge-type current switching devices the cylindrical shape of the jack of socket 2 and U type cross structure 1 adapts, and this jack inside is the annular resilient sheet metal; Every pair of jack bottom surface is fixed on the insulation board; Every group of jack has 4, and the terminal of every group of jack all is connected in series, the rectangular arrangement of the jack of even sets; The rectangular arrangement of the jack of odd number group, and the jack parallelogram of the jack of even sets and odd number group is arranged.
The difference of embodiment four, this execution mode and embodiment one described bridge-type current switching device is that described overvoltage short-circuit protection 4 is a microcomputer overvoltage short-circuit protection.
Specify the current switching method of bridge-type current switching device in conjunction with Fig. 1, Fig. 4 and Fig. 5:
Claims (4)
1. bridge-type current switching device; It is characterized in that; It comprises the by-pass current instrument transformer secondary side winding (5) of Current Transformer Secondary lateral coil winding (3), overvoltage short-circuit protection (4) and the transformer of U type cross structure (1), socket (2), transformer
Described socket (2) comprises 6 groups of jacks,
The terminal of first group of jack of socket (2) is connected with an end of the Current Transformer Secondary lateral coil winding (3) of transformer,
The other end of the Current Transformer Secondary lateral coil winding (3) of transformer is connected with the terminal of second group of jack;
One end of the terminal of the 3rd group of jack of socket (2) is connected with a current input terminal of overvoltage short-circuit protection (4),
Another current input terminal of overvoltage short-circuit protection (4) is connected with an end of the terminal of the 4th group of jack;
First group of jack of socket (2) is connected with the 3rd group of jack through U type cross structure (1),
Second group of jack of socket (2) is connected with the 4th group of jack through U type cross structure (1);
The terminal of the 5th group of jack of socket (2) is connected with an end of the by-pass current instrument transformer secondary side winding (5) of transformer,
The other end of the by-pass current instrument transformer secondary side winding (5) of transformer is connected with the terminal of the 6th group of jack.
2. bridge-type current switching device according to claim 1 is characterized in that the plug of described U type cross structure (1) is a cylindrical shape, and inside is the annular resilient sheet metal.
3. bridge-type current switching device according to claim 2; It is characterized in that; The cylindrical shape of the jack of socket (2) and U type cross structure (1) adapts, and this jack inside is the annular resilient sheet metal, and every pair of jack bottom surface is fixed on the insulation board; Every group of jack has 4, and the terminal of every group of jack all is connected in series.
4. bridge-type current switching device according to claim 1 is characterized in that, described overvoltage short-circuit protection (4) is a microcomputer overvoltage short-circuit protection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220312563 CN202602354U (en) | 2012-06-29 | 2012-06-29 | Bridge type current switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220312563 CN202602354U (en) | 2012-06-29 | 2012-06-29 | Bridge type current switching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202602354U true CN202602354U (en) | 2012-12-12 |
Family
ID=47319869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220312563 Expired - Lifetime CN202602354U (en) | 2012-06-29 | 2012-06-29 | Bridge type current switching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202602354U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102723774A (en) * | 2012-06-29 | 2012-10-10 | 黑龙江省电力有限公司检修公司 | Bridge type current switching device and current switching method using same |
| CN105242079A (en) * | 2015-10-23 | 2016-01-13 | 福建省电力勘测设计院 | Intelligent substation current test type anti-misoperation prefabricated cable connector |
-
2012
- 2012-06-29 CN CN 201220312563 patent/CN202602354U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102723774A (en) * | 2012-06-29 | 2012-10-10 | 黑龙江省电力有限公司检修公司 | Bridge type current switching device and current switching method using same |
| CN105242079A (en) * | 2015-10-23 | 2016-01-13 | 福建省电力勘测设计院 | Intelligent substation current test type anti-misoperation prefabricated cable connector |
| CN105242079B (en) * | 2015-10-23 | 2018-05-04 | 中国电建集团福建省电力勘测设计院有限公司 | The anti-error pre-fabricated electric cables connector of intelligent substation current testing type |
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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: MAINTENANCE BRANCH OF HEILONGJIANG ELECTRIC POWER COMPANY LIMITED Effective date: 20130508 Owner name: MAINTENANCE BRANCH OF HEILONGJIANG ELECTRIC POWER Effective date: 20130508 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 150090 HARBIN, HEILONGJIANG PROVINCE TO: 100031 XICHENG, BEIJING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20130508 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee after: State Grid Corporation of China Patentee after: Maintenance Company, Heilongjiang Power Co.,Ltd. Address before: 150090 No. 18, Songshan Road, Nangang District, Heilongjiang, Harbin Patentee before: Maintenance Company, Heilongjiang Power Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20121212 |
|
| CX01 | Expiry of patent term |