CN103077817A - Opening and closing type zero sequence current mutual inductor - Google Patents
Opening and closing type zero sequence current mutual inductor Download PDFInfo
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- CN103077817A CN103077817A CN2013100433376A CN201310043337A CN103077817A CN 103077817 A CN103077817 A CN 103077817A CN 2013100433376 A CN2013100433376 A CN 2013100433376A CN 201310043337 A CN201310043337 A CN 201310043337A CN 103077817 A CN103077817 A CN 103077817A
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- mutual inductor
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- pouring body
- zero sequence
- sequence current
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Abstract
The invention relates to a mutual inductor, which discloses an opening and closing type zero sequence current mutual inductor. The opening and closing type zero sequence current mutual inductor comprises a base and a pouring body arranged on the base, wherein the inside of the pouring body is provided with an annular iron core; the pouring body comprises a first pouring body and a second pouring body, wherein the first pouring body is positioned on the upper part; the second pouring body is positioned on the lower part; the first pouring body and the second pouring body are semicircular; the first pouring body and the second pouring body are subjected to butt joint to form a circular ring shape; the outer circumference surfaces of the first pouring body and the second pouring body are provided with a clamping hoop; and the first pouring body and the second pouring body are connected into a whole by the clamping hoops. The opening and closing type zero sequence current mutual inductor disclosed by the invention has the advantages of compact structure, small size, small consumable use amount, light weight, convenience in installation and use and higher economic practicality and popularization value.
Description
Technical field
The present invention relates to a kind of instrument transformer, related in particular to a kind of open-close type zero sequence current mutual inductor.
Background technology
The zero sequence current mutual inductor of using in zero sequence overcurrent protection and the small grounding current system ground protection of electric power system high pressure threephase generator, motor at present all is the product of closed type; its product is heavy; volume is large; consumptive material is more; cause the switchette cabinet to install into, the cable that has connected for two ends installs zero-sequenceprotection additional and more bothers, and an extraction of cable be passed instrument transformer; workload is very large, and relatively more difficult.
Summary of the invention
The present invention is directed to the defective that exists in the prior art, a kind of compact conformation is provided, volume is little, and the consumptive material consumption is few, and is lightweight, installs and uses convenient open-close type zero sequence current mutual inductor.
In order to solve the problems of the technologies described above, the present invention is solved by following technical proposals:
Open-close type zero sequence current mutual inductor, comprise base, be arranged on the body of building on the base, build and be provided with annular core in the body, the described body of building comprises that superposed first builds body and be positioned at second of bottom and build body, and first builds body and the second shape of building body is semicircle; First builds body and second builds and forms after the body docking circularly, and described first builds body and second builds on the outer circumference surface of body and be provided with bail, and described bail is built body and second with first and built body and be connected.
As preferably, described bail is the steel bar of a bending, and the two ends of steel bar are respectively arranged with two stiffeners, and it is vertical that stiffener and first is built external periphery, fixes by securing member between two stiffeners.
As preferably, described securing member comprises baffle plate, the set bolt that links to each other with baffle plate, and the end cover near baffle plate on the set bolt has Compress Spring; Set bolt sequentially screws in two stiffeners, and Compress Spring is close to the wherein outer wall of a stiffener.
As preferably, described first builds body and the second outer wall surface of building body is provided with connector, and first builds body and second builds between the body and connect with screw through connector.
As preferably, it is 180-200mm that described docking forms the circular outside diameter of building body afterwards.
As preferably, it is 80-120mm that described docking forms the circular interior circular diameter of building body afterwards.
The present invention has significant technique effect owing to adopted above technical scheme:
Compact conformation of the present invention, volume is little, and the consumptive material consumption is few, and is lightweight, installs and uses very conveniently, has very high economic and practical and promotional value.
Description of drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is the end view of Fig. 1.
Embodiment
The present invention is described in further detail with embodiment below in conjunction with accompanying drawing 1 to accompanying drawing 2:
Open-close type zero sequence current mutual inductor, extremely shown in Figure 2 such as Fig. 1, comprise base 1, be arranged on the body of building on the base 1, build and be provided with annular core in the body, the described body of building comprises that superposed first builds body 2 and be positioned at second of bottom and build that body 3, the first is built body 2 and the second shape of building body 3 is semicircle; First builds body 2 and second builds and forms after body 3 docking circularly, and described first builds body 2 and second builds on the outer circumference surface of body 3 and be provided with bail 4, and described bail 4 is built body 2 and second with first and built body 3 and be connected.
Described bail 4 is the steel bar of a bending, and the two ends of steel bar are respectively arranged with two stiffeners 5, and it is vertical that stiffener 5 and first is built body 2 outer circumference surfaces, fixes by securing member between two stiffeners 5.
Described securing member comprises baffle plate 6, the set bolt 7 that links to each other with baffle plate 6, and the end cover near baffle plate 6 on the set bolt 7 has Compress Spring 8; Set bolt 7 orders screw in two stiffeners 5, and Compress Spring 8 is close to the wherein outer wall of a stiffener 5.
Described first builds body 2 and the second outer wall surface of building body 3 is provided with connector 9, the first and builds body 2 and second and build between the body 3 and connect through connector 9 usefulness screws.
Form the circular outside diameter of building body after the docking and can be 180-200mm, form the circular interior circular diameter of building body after the docking and can be 80-120mm.
In a word, the above only is preferred embodiment of the present invention, and all equalizations of doing according to the present patent application claim change and modify, and all should belong to the covering scope of patent of the present invention.
Claims (6)
1. open-close type zero sequence current mutual inductor, comprise base (1), be arranged on the body of building on the base (1), it is characterized in that: described building is provided with annular core in the body, the described body of building comprises that superposed first builds body (2) and be positioned at second of bottom and build body (3), and first builds body (2) and second builds the shape of body (3) and be semicircle; First build body (2) and second build form after body (3) docking circular, described first builds body (2) and second builds and is provided with bail (4) on the outer circumference surface of body (3), and described bail (4) is built body (2) and second with first and built body (3) and be connected.
2. open-close type zero sequence current mutual inductor according to claim 1, it is characterized in that: described bail (4) is the steel bar of a bending, the two ends of steel bar are respectively arranged with two stiffeners (5), it is vertical that stiffener (5) and first is built body (2) outer circumference surface, fixes by securing member between two stiffeners (5).
3. open-close type zero sequence current mutual inductor according to claim 2, it is characterized in that: described securing member comprises baffle plate (6), the set bolt (7) that links to each other with baffle plate (6), and the upper end cover near baffle plate (6) of set bolt (7) has Compress Spring (8); Set bolt (7) order screws in two stiffeners (5), and Compress Spring (8) is close to the wherein outer wall of a stiffener (5).
4. open-close type zero sequence current mutual inductor according to claim 1, it is characterized in that: described first builds body (2) and second builds the outer wall surface of body (3) and is provided with connector (9), and first builds body (2) and second builds between the body (3) and connect with screw through connector (9).
5. open-close type zero sequence current mutual inductor according to claim 1, it is characterized in that: it is 180-200mm that described docking forms the circular outside diameter of building body afterwards.
6. open-close type zero sequence current mutual inductor according to claim 1, it is characterized in that: it is 80-120mm that described docking forms the circular interior circular diameter of building body afterwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100433376A CN103077817A (en) | 2013-01-30 | 2013-01-30 | Opening and closing type zero sequence current mutual inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100433376A CN103077817A (en) | 2013-01-30 | 2013-01-30 | Opening and closing type zero sequence current mutual inductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103077817A true CN103077817A (en) | 2013-05-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013100433376A Pending CN103077817A (en) | 2013-01-30 | 2013-01-30 | Opening and closing type zero sequence current mutual inductor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103077817A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105609299A (en) * | 2016-03-11 | 2016-05-25 | 吴世植 | Waterproof detachable current transformer |
| CN108023359A (en) * | 2016-11-03 | 2018-05-11 | 南京宏景智能电网科技有限公司 | A kind of power distribution automation three-phase imbalance automatic regulating system |
| CN108828287A (en) * | 2018-04-08 | 2018-11-16 | 江阴市星火电子科技有限公司 | It is a kind of for measure traverse line electric current, voltage, temperature open-close type mutual inductor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2147632Y (en) * | 1992-12-31 | 1993-11-24 | 大连第一互感器厂 | Zero-sequence current mutual-inductor |
| CN2446645Y (en) * | 2000-09-22 | 2001-09-05 | 赵义林 | Open/close current transformer |
| CN201408641Y (en) * | 2009-02-20 | 2010-02-17 | 南京鼎牌电器有限公司 | Open-close type current transformer |
| CN201536054U (en) * | 2009-08-05 | 2010-07-28 | 大连北方互感器集团有限公司 | Indoor open/close type current transformer for electric locomotive |
| CN203055649U (en) * | 2013-01-30 | 2013-07-10 | 杭州大互互感器有限公司 | Open-close type zero sequence current mutual inductor |
-
2013
- 2013-01-30 CN CN2013100433376A patent/CN103077817A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2147632Y (en) * | 1992-12-31 | 1993-11-24 | 大连第一互感器厂 | Zero-sequence current mutual-inductor |
| CN2446645Y (en) * | 2000-09-22 | 2001-09-05 | 赵义林 | Open/close current transformer |
| CN201408641Y (en) * | 2009-02-20 | 2010-02-17 | 南京鼎牌电器有限公司 | Open-close type current transformer |
| CN201536054U (en) * | 2009-08-05 | 2010-07-28 | 大连北方互感器集团有限公司 | Indoor open/close type current transformer for electric locomotive |
| CN203055649U (en) * | 2013-01-30 | 2013-07-10 | 杭州大互互感器有限公司 | Open-close type zero sequence current mutual inductor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105609299A (en) * | 2016-03-11 | 2016-05-25 | 吴世植 | Waterproof detachable current transformer |
| CN108023359A (en) * | 2016-11-03 | 2018-05-11 | 南京宏景智能电网科技有限公司 | A kind of power distribution automation three-phase imbalance automatic regulating system |
| CN108828287A (en) * | 2018-04-08 | 2018-11-16 | 江阴市星火电子科技有限公司 | It is a kind of for measure traverse line electric current, voltage, temperature open-close type mutual inductor |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130501 |