CN103633577A - Low-voltage current transformer type primary movable plug-in - Google Patents
Low-voltage current transformer type primary movable plug-in Download PDFInfo
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- CN103633577A CN103633577A CN201310589096.5A CN201310589096A CN103633577A CN 103633577 A CN103633577 A CN 103633577A CN 201310589096 A CN201310589096 A CN 201310589096A CN 103633577 A CN103633577 A CN 103633577A
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Abstract
The invention discloses a low-voltage current transformer type primary movable plug-in, comprising a movable plug-in body, a movable plug, a primary wiring terminal, a conducting copper bar and an iron core coil, wherein the conducting copper bar is integrated with the movable plug and the primary wiring terminal, the iron core coil is embedded in the movable plug-in body, the conducting copper bar penetrates through the iron core coil to form a current transformer, a primary winding of the current transformer is connected with the primary wiring terminal, the movable plug-in body is externally provided with a shell in a plastic package manner, and a secondary winding of the current transformer is connected to a secondary wiring terminal through a wire. According to the scheme, the current transformer and the primary movable plug-in in a drawer unit are combined into one body, so that the quantity of components in the drawer unit is reduced, and the space is saved, and meanwhile, the iron core coil of the current transformer is embedded in the movable plug-in body, the process of plastic package of a shell for the current transformer is omitted, the production cost is reduced, and energy conservation and environment friendliness are realized. The primary movable plug-in provided by the scheme has the advantageous performances of high safety, easiness in processing, cost saving and installation space saving.
Description
Technical field
The present invention relates to low-voltage electrical apparatus complete set of equipments technical field, especially a kind of low-voltage current mutual inductor formula is moving plug-in unit once.
Background technology
At present, low voltage complete set adopts pull-out type case, cabinet form more and more, this form can make to be subject to the electric unit of the purposes such as electricity, feed, contact all can in pull-out type case, to assemble, after will insert in drawing-out type cabinet cordwood system type and form power supply-distribution system, there is the advantages such as compact conformation, easy to maintenance, capacity adjustability is good.
Low-voltage current mutual inductor is according to electromagnetic induction principle, and the primary current that numerical value is larger is converted to by certain no-load voltage ratio the secondary current that numerical value is less, is used for protecting, the purposes such as measurement, is widely used in low-voltage electrical complete set of equipments; Plug-in unit of low pressure is for the pull-out type loop of low voltage drawing-out switching carbinet, by dynamic and static plug-in unit, plugged together being connected of outlet switch and power supply and load.
Because low voltage drawing-out switching carbinet adopts modularized design, safe and reliable, safeguard that cylinder is single, on market, be widely applied.The drawer type outlet loop of low voltage drawing-out switching carbinet is by plugging together of a sound plug-in unit and being connected of power supply and load, by low-voltage current mutual inductor, the larger primary current of numerical value is converted to the secondary current that numerical value is less by certain no-load voltage ratio again, by secondary line connection table meter, measure line loop electric current.
But; in the drawer in drawer type outlet loop, generally all need to be equiped with the operating mechanism, current transformer, measuring instrument, indicator light, fuse of switch, switch, numerous components and parts such as moving plug-in unit, cable, secondary electric wire and a conducting copper once; even also require the components and parts such as installing A.C. contactor, thermal relay, motor protector, auxiliary relay; this just causes, and in drawer unit, element is numerous, system is numerous and jumbled, and components and parts installing space is narrow and small.And the large portion of low-voltage current mutual inductor used is plastic casing in the market, also need to carry out extra plastic package process, this has just increased injection molding process, has increased production cost, is also unfavorable for energy-conserving and environment-protective.
Summary of the invention
The object of the present invention is to provide once moving plug-in unit of a kind of low-voltage current mutual inductor formula, in order to solve, in prior art, in drawer type outlet loop, components and parts are numerous, system is numerous and jumbled, the problem that components and parts installing space is narrow and small.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of low-voltage current mutual inductor formula is moving plug-in unit once, comprise moving insert body, moving plug, primary connection termination, with the conducting copper of moving plug and primary connection termination one and be embedded in the iron-core coil in moving insert body, conducting copper forms current transformer through iron-core coil, a winding of current transformer connects primary connection termination, moving insert body external plastic has shell, and shell is provided with secondary wiring terminals, and the secondary winding of iron-core coil is connected to secondary wiring terminals by wire.
Preferably, described current transformer and the once moving plug-in unit setting that unites two into one.
Preferably, described primary connection termination is connected with the switch in drawer unit.
Preferably, described moving plug connects static socket, and static socket connects power supply or load.
Preferably, described secondary wiring terminals is by wire and Instrument connection.
As mentioned above, a kind of low-voltage current mutual inductor formula of the present invention is moving plug-in unit once, the current transformer in drawer unit with once move plug-in unit and unite two into one, has reduced the component number in drawer unit, has saved space; And iron-core coil is embedded in once in moving plug-in unit, saved the plastic packaging envelope process of current transformer, reduced production cost, energy-conserving and environment-protective, the superior function that once moving plug-in unit has high safety, is easy to processing, saves cost, saves installing space of this programme.
Accompanying drawing explanation
Below in conjunction with drawings and embodiments, the present invention is described in further detail;
Fig. 1 is that in the embodiment of the present invention, a kind of low-voltage current mutual inductor formula is once moved the front view of plug-in unit;
Fig. 2 is part (bottom) cutaway view of Fig. 1;
Fig. 3 is the left view of Fig. 1;
In Fig. 1 to Fig. 3,
Moving insert body 1, iron-core coil 2, shell 3, primary connection termination 4, moving plug 5, secondary wiring terminals 6.
Embodiment
Below, by specific instantiation explanation embodiments of the present invention, those skilled in the art can understand other advantages of the present invention and effect easily by the disclosed content of this specification.The present invention can also be implemented or be applied by other different embodiment, and the every details in this specification also can be based on different viewpoints and application, carries out various modifications or change not deviating under spirit of the present invention.
Incorporated by reference to Fig. 1, shown in Fig. 2 and Fig. 3, it is the once front view of moving plug-in unit of a kind of low-voltage current mutual inductor formula of the present invention, partial sectional view and left view, for realizing, low-voltage alternating-current system high-current can be dropped in proportion to the low-voltage current mutual inductor formula moving plug-in unit once that can directly measure numerical value by instrument, applicable to exchanging 50Hz, rated voltage 690V and following indoor low-voltage electrical complete set of equipments, it comprises moving insert body 1, moving plug 5, primary connection termination 4, with the conducting copper of moving plug 5 and primary connection termination 4 one and be embedded in the iron-core coil 2 in moving insert body 1, conducting copper forms current transformer through iron-core coil 2, a winding of current transformer connects primary connection termination 4, moving insert body 1 external plastic has shell 3, shell 3 is provided with secondary wiring terminals 6, the secondary winding of iron-core coil 2 is connected to secondary wiring terminals 6 by wire.In such scheme, by current transformer and the once moving plug-in unit setting that unites two into one, both integrate, and have reduced manufacturing process technique, have reduced the component number in drawer unit, have saved space, have reduced production cost.
Wherein, current transformer is comprised of winding, secondary winding and conducting copper, housing and a binding post of mutually insulated, its operation principle is identical with transformer, the number of turn of a winding is few, directly be series in power circuit, when one time load current passes through a winding, the alternating flux induction of generation produces the secondary current reducing in proportion, the number of turn of secondary winding is more, connects and forms closed-loop path with the secondary load of the iron-core coil 2 such as external meters; Also be that energy is conservation, power is equal, and because of P=UI, voltage is to be directly proportional with the number of turn of iron-core coil 2 again, and current ratio is exactly the inverse ratio of the number of turn, to realize boosting, falls stream.
The low-voltage current mutual inductor formula of this programme is moving plug-in unit once, by conducting copper, plug spring leaf, iron-core coil 2 through single injection-molded, the same with insert shape and mounting means at work, by moving plug 5, be connected with static socket, static socket connects power supply or load connects, by primary connection termination 4, be connected with the switch in drawer unit, secondary wiring terminals 6 is by wire and Instrument connection, realization is converted to by certain no-load voltage ratio the secondary current that numerical value is less by the larger primary current of numerical value, to measure etc.
A kind of low-voltage current mutual inductor formula of the present invention is moving plug-in unit once, the current transformer in drawer unit with once move plug-in unit and unite two into one, has reduced the component number in drawer unit, has saved space; And iron-core coil 2 is embedded in once in moving plug-in unit, saved the plastic packaging envelope process of current transformer, reduced production cost, also reached the object of energy-conserving and environment-protective, the superior function that once moving plug-in unit has high safety, is easy to processing, saves cost, saves installing space of this programme.So the present invention has effectively overcome various shortcoming of the prior art and has had high industrial utilization.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.Any person skilled in the art scholar all can, under spirit of the present invention and category, modify or change above-described embodiment.Therefore, such as in affiliated technical field, have and conventionally know that the knowledgeable, not departing from all equivalence modifications that complete under disclosed spirit and technological thought or changing, must be contained by claim of the present invention.
Claims (5)
1. a low-voltage current mutual inductor formula is once moved plug-in unit, it is characterized in that, comprise moving insert body, moving plug, primary connection termination, with the conducting copper of moving plug and primary connection termination one and be embedded in the iron-core coil in moving insert body, conducting copper forms current transformer through iron-core coil, a winding of current transformer connects primary connection termination, moving insert body external plastic has shell, shell is provided with secondary wiring terminals, and the secondary winding of iron-core coil is connected to secondary wiring terminals by wire.
2. low-voltage current mutual inductor formula according to claim 1 moving plug-in unit once, is characterized in that, described current transformer and once move the plug-in unit setting that unites two into one.
3. low-voltage current mutual inductor formula according to claim 1 is once moved plug-in unit, it is characterized in that, described primary connection termination is connected with the switch in drawer unit.
4. low-voltage current mutual inductor formula according to claim 1 is once moved plug-in unit, it is characterized in that, described moving plug connects static socket, and static socket connects power supply or load.
5. low-voltage current mutual inductor formula according to claim 1 is once moved plug-in unit, it is characterized in that, described secondary wiring terminals is by wire and Instrument connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310589096.5A CN103633577B (en) | 2013-11-20 | 2013-11-20 | Low-voltage current transformer type is dynamic plug-in unit once |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310589096.5A CN103633577B (en) | 2013-11-20 | 2013-11-20 | Low-voltage current transformer type is dynamic plug-in unit once |
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| Publication Number | Publication Date |
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| CN103633577A true CN103633577A (en) | 2014-03-12 |
| CN103633577B CN103633577B (en) | 2016-03-02 |
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| CN201310589096.5A Active CN103633577B (en) | 2013-11-20 | 2013-11-20 | Low-voltage current transformer type is dynamic plug-in unit once |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104466774A (en) * | 2014-12-31 | 2015-03-25 | 盛道（中国）电气有限公司 | Low-voltage switching cabinet with 1/2 drawing-out type functional units |
| CN107579477A (en) * | 2017-08-31 | 2018-01-12 | 深圳昂泰智能有限公司 | Drawer structure and power distribution cabinet |
| CN107681355A (en) * | 2017-09-06 | 2018-02-09 | 温州隆森电气有限公司 | A kind of electric connector and plug-type power distribution cabinet |
| CN107765208A (en) * | 2017-10-17 | 2018-03-06 | 天津市百利纽泰克电气科技有限公司 | Zero sequence current mutual inductor coil test method based on bus positioner |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001112159A (en) * | 1999-10-06 | 2001-04-20 | Nissin Electric Co Ltd | Terminal device for test |
| CN201562898U (en) * | 2009-12-08 | 2010-08-25 | 南京大全电气有限公司 | Horizontally placed primary plug-in board |
| CN102255256A (en) * | 2011-07-26 | 2011-11-23 | 无锡市惠能自动化设备有限公司 | Multi-linkage movable connector for main circuit |
| JP2012154710A (en) * | 2011-01-25 | 2012-08-16 | Chugoku Electric Power Co Inc:The | Measurement tool for test plug |
| CN203589559U (en) * | 2013-11-20 | 2014-05-07 | 上海宝临电气集团有限公司 | Low-voltage current transformer type movable plug-in |
-
2013
- 2013-11-20 CN CN201310589096.5A patent/CN103633577B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001112159A (en) * | 1999-10-06 | 2001-04-20 | Nissin Electric Co Ltd | Terminal device for test |
| CN201562898U (en) * | 2009-12-08 | 2010-08-25 | 南京大全电气有限公司 | Horizontally placed primary plug-in board |
| JP2012154710A (en) * | 2011-01-25 | 2012-08-16 | Chugoku Electric Power Co Inc:The | Measurement tool for test plug |
| CN102255256A (en) * | 2011-07-26 | 2011-11-23 | 无锡市惠能自动化设备有限公司 | Multi-linkage movable connector for main circuit |
| CN203589559U (en) * | 2013-11-20 | 2014-05-07 | 上海宝临电气集团有限公司 | Low-voltage current transformer type movable plug-in |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104466774A (en) * | 2014-12-31 | 2015-03-25 | 盛道（中国）电气有限公司 | Low-voltage switching cabinet with 1/2 drawing-out type functional units |
| CN107579477A (en) * | 2017-08-31 | 2018-01-12 | 深圳昂泰智能有限公司 | Drawer structure and power distribution cabinet |
| CN107579477B (en) * | 2017-08-31 | 2019-07-30 | 深圳昂泰智能有限公司 | Drawer structure and power distribution cabinet |
| CN107681355A (en) * | 2017-09-06 | 2018-02-09 | 温州隆森电气有限公司 | A kind of electric connector and plug-type power distribution cabinet |
| CN107765208A (en) * | 2017-10-17 | 2018-03-06 | 天津市百利纽泰克电气科技有限公司 | Zero sequence current mutual inductor coil test method based on bus positioner |
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| Publication number | Publication date |
|---|---|
| CN103633577B (en) | 2016-03-02 |
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