CN103714960A - Electricity larceny prevention device - Google Patents
Electricity larceny prevention device Download PDFInfo
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- CN103714960A CN103714960A CN201410014532.0A CN201410014532A CN103714960A CN 103714960 A CN103714960 A CN 103714960A CN 201410014532 A CN201410014532 A CN 201410014532A CN 103714960 A CN103714960 A CN 103714960A
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Abstract
The invention provides an electricity larceny prevention device used for a low-voltage straight through current transformer. The electricity larceny prevention device comprises a plurality of anti-theft plates and a retractable insulating sleeve, wherein the anti-theft plates are arranged on a shell of the low-voltage straight through current transformer and cover the end openings of the two sides of a straight through hole of the shell, wire passing holes allowing a primary side wire to penetrate through are formed in the anti-theft plates, and the retractable insulating sleeve is arranged in the wire passing holes and used for blocking the gap between the wire passing holes and the primary side wire penetrating through the wire passing holes. According to the electricity larceny prevention device, the anti-theft plates and the insulating sleeve are arranged, and therefore the gap between the primary side wire and the straight through hole is eliminated, a user can not install a short circuit ring between the primary side wire and the straight through hole any more, the electricity larceny prevention effect is achieved, and economic losses of a power supply company are avoided.
Description
Technical field
The present invention relates to electric equipment technical field, more particularly, relate to a kind of anti-electricity-theft device that is applied to low pressure straight-through current transformer.
Background technology
Current transformer is the electric equipment of often using in electric field, and its Main Function is current transformation and electrical isolation.Low pressure straight-through current transformer in current transformer, because thering is use, easy for installation, and the advantage such as manufacturing process is simple, and production cost is low, and by people's extensive use.
Low pressure straight-through current transformer mainly comprises the annular core that is wound with coil and the toroidal shell that is wrapped in annular core outside, wherein be wound with the annular core of coil as secondary side winding, two line ends of coil are secondary outgoing line end, when charged primary side wire passes the center hole of toroidal shell centre, in secondary side winding, will induce electric current.
Low pressure straight-through current transformer is in actual application, and for the consideration of number one, user often can transform low pressure straight-through current transformer, to reach the object of stealing.For this situation, Guo Wang company has put into effect the technical specification of QGDW572 metering with low-voltage current mutual inductor, the wherein clear and definite anti-electricity-theft technical scheme of low pressure straight-through current transformer secondary side, prevents user's stealing in the mode that secondary outgoing line end installs vinyl cover and lead sealing additional.
But, in this technical specification, low pressure straight-through current transformer primary side anti-theft electricity technology is not made to clearly regulation, and there is space due to the center hole of toroidal shell and through between the primary side wire of this center hole, and the design of sealing up without lead sealing, user can adopt the mode that increases short-circuited conducting sleeve to carry out stealing on center hole, and electric company is difficult for finding when increasing and remove short-circuited conducting sleeve, can accomplish not destroy under the prerequisite of secondary side lead sealing and realize stealing, as long as regularly increase and releasing short-circuited conducting sleeve can be avoided the supervision of electric company easily, the stealing that realization leaves no trace, bring difficulty to investigation stealing evidence, cause the economic loss of electric company.
Therefore, how improving the power-steeling preventing effect of low pressure straight-through current transformer, is current those skilled in the art's problem demanding prompt solution.
Summary of the invention
In view of this, the invention provides a kind of anti-electricity-theft device, it can improve the power-steeling preventing effect of low pressure straight-through current transformer primary side.
In order to achieve the above object, the invention provides following technical scheme:
An anti-electricity-theft device, for low pressure straight-through current transformer, it comprises:
Be arranged on a plurality of anti-theft panel on the housing of described low pressure straight-through current transformer, described anti-theft panel covers the port, both sides of the center hole of described housing, and in described anti-theft panel, offers the cable-through hole that allows primary side wire to pass;
Be arranged in described cable-through hole the collapsible insulating case for shutoff through gap between the described primary side wire of described cable-through hole and described cable-through hole.
Preferably, in above-mentioned anti-electricity-theft device, common cooperation of two described anti-theft panel covers described center hole port, and is provided with groove on two contact-making surfaces being in contact with one another of two described anti-theft panel, and two described groove fit form described cable-through hole.
Preferably, in above-mentioned anti-electricity-theft device, two described anti-theft panel that described center hole port is covered are connected to each other by a plurality of bolts, and are fixed on described housing.
Preferably, in above-mentioned anti-electricity-theft device, described in each, the head of bolt is provided with the connecting hole that can be passed by lead sealing line, and all described bolts are passed by same lead sealing line, and this lead sealing line lead sealing is in secondary side lead sealing place of described low pressure straight-through current transformer.
Preferably, in above-mentioned anti-electricity-theft device, the material of contractile described insulating case is soft rubber.
In anti-electricity-theft device provided by the invention, it comprises anti-theft panel and insulating case, this anti-theft panel is a plurality of, and can be arranged on housing, in order to cover two ports of center hole, and in anti-theft panel, offer cable-through hole, the insulating case that volume can shrink is squeezed in center hole, when primary side wire need to be through this cable-through hole, make primary side wire pass from insulating case inner chamber, now insulating case can fill up the gap between primary side wire and center hole inwall completely, thereby has played plugging action, and short-circuited conducting sleeve cannot be installed again.Anti-electricity-theft device provided by the invention, it has avoided having gap between primary side wire and center hole by anti-theft panel and insulating case are set, and makes user between primary side wire and center hole, short-circuited conducting sleeve to be installed again, play anti-electricity-theft effect, avoided the economic loss of electric company.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The front view of the anti-electricity-theft device that Fig. 1 provides for the embodiment of the present invention;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the right view of Fig. 1.
In above Fig. 1-Fig. 3:
Embodiment
The invention provides a kind of anti-electricity-theft device, it can improve the power-steeling preventing effect of low pressure straight-through current transformer primary side.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
As shown in Figure 1-Figure 3, the anti-electricity-theft device that the embodiment of the present invention provides, for low pressure straight-through current transformer, it comprises:
Be arranged on a plurality of anti-theft panel 1 on the housing 2 of low pressure straight-through current transformer, anti-theft panel 1 covers the port, both sides of the center hole of housing 2, and in anti-theft panel 1, offers the cable-through hole that allows primary side wire to pass;
Be arranged in cable-through hole the contractile insulating case 3 for shutoff through gap between the primary side wire of cable-through hole and cable-through hole.
In the anti-electricity-theft device that the present embodiment provides, it comprises anti-theft panel 1 and insulating case 3, this anti-theft panel 1 is a plurality of, and can be arranged on housing 2, in order to cover center hole, and offer cable-through hole in anti-theft panel 1, the insulating case 3 that volume can shrink is squeezed in center hole, when primary side wire need to be through this cable-through hole, make primary side wire pass from insulating case 3 inner chambers, now insulating case 3 can fill up the gap between primary side wire and center hole inwall completely, thereby has played plugging action, and short-circuited conducting sleeve cannot be installed again.
The anti-electricity-theft device that the present embodiment provides, it is by arranging anti-theft panel 1 and insulating case 3, avoided having gap between primary side wire and center hole, make user between primary side wire and center hole, short-circuited conducting sleeve to be installed again, played anti-electricity-theft effect, the effective management and control of realization to low pressure straight-through current transformer, has avoided the economic loss of electric company.And the anti-electricity-theft device that the present embodiment provides is simple in structure, cheap, be conducive to technical scheme realization and popularization in actual applications.
In order further to optimize technique scheme, in the anti-electricity-theft device that the present embodiment provides, common cooperation of two anti-theft panel 1 covers center hole port, and is provided with groove on two contact-making surfaces being in contact with one another of two anti-theft panel 1, and two groove fit form cable-through holes.As shown in Figure 1, a port of 1 pair of center hole of a plurality of anti-theft panel of the present embodiment choice for use covers, and forms cable-through hole by the groove fit being arranged on contact-making surface separately, can more be conducive to the installation of insulating case 3 in cable-through hole.Before two anti-theft panel 1 contact, just insulating case 3 is put into one of them groove, in and the process that contacts close to each other two anti-theft panel 1, insulating case 3 is squeezed in the cable-through hole of formation.Concrete, this insulating case 3 is bonded on the inwall of cable-through hole.Certainly, anti-theft panel 1 also can be set to larger one of area, and insulating case 3 is filled in cable-through hole after being squeezed to smaller size smaller again.
Preferably, two anti-theft panel 1 that center hole port is covered are connected to each other by a plurality of bolts 4, and are fixed on housing 2.As shown in Figure 1-Figure 3, in the present embodiment, anti-theft panel 1 needs dismountable being arranged on housing 2, and anti-theft panel 1 can be disassembled, and center hole is exposed to carry out other operations.In addition the mode that, bolt 4 arranges is also in order to coordinate with lead sealing line.
Further, the head of each bolt 4 is provided with the connecting hole (not shown in FIG.) that can be passed by lead sealing line, and all bolts 4 are passed by same lead sealing line, this lead sealing line (not shown in FIG.) lead sealing is in secondary side lead sealing place of low pressure straight-through current transformer.In the present embodiment, use same lead sealing line that all bolts 4 are cascaded, and by lead sealing line tension lead sealing, when user wants stealing like this, just bolt 4 need to be backed out and take anti-theft panel 1 apart, once be shifted but bolt 4 is released, will make lead sealing line be pulled off or lead sealing loosening, thereby leave stealing vestige, electric company is easily found and obtains stealing evidence.The present embodiment is preferred, and this lead sealing line lead sealing is in secondary side lead sealing place of low pressure straight-through current transformer, thereby realizes the common lead sealing of low pressure straight-through current transformer first and second side, makes power-steeling preventing effect more outstanding.
Concrete, the material of contractile insulating case 3 is soft rubber.Insulating case 3 in the present embodiment has contractility, the volume of insulating case 3 can be changed by extruding, its effect is except carrying out shutoff more fully the gap between primary side wire and cable-through hole, also because determine the structure of vinyl cover and lead sealing in state's net company technique standard, under the condition of size, its technical scheme can not be applicable to different no-load voltage ratios (during different no-load voltage ratio, low pressure straight-through current transformer is not of uniform size) low pressure straight-through current transformer, make the technical scheme applicability of Guo Wang company poor, the insulating case 3 that the present embodiment provides is because its volume can change, can be applicable to the low pressure straight-through current transformer of different no-load voltage ratios, greatly improved the versatility of the anti-electricity-theft device that the present embodiment provides.Certainly, can meet under the prerequisite of job requirement, insulating case 3 can, for other have better flexible macromolecular material, not limit at this yet.
In this specification, each embodiment adopts the mode of going forward one by one to describe, and each embodiment stresses is the difference with other embodiment, between each embodiment identical similar part mutually referring to.
Above-mentioned explanation to the disclosed embodiments, makes professional and technical personnel in the field can realize or use the present invention.To the multiple modification of these embodiment, will be apparent for those skilled in the art, General Principle as defined herein can, in the situation that not departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (5)
1. an anti-electricity-theft device, for low pressure straight-through current transformer, is characterized in that, comprising:
Be arranged on a plurality of anti-theft panel (1) on the housing (2) of described low pressure straight-through current transformer, described anti-theft panel (1) covers the port, both sides of the center hole of described housing (1), and in described anti-theft panel (1), offers the cable-through hole that allows primary side wire to pass;
Be arranged in described cable-through hole the collapsible insulating case (3) for shutoff through gap between the described primary side wire of described cable-through hole and described cable-through hole.
2. anti-electricity-theft device according to claim 1, it is characterized in that, common cooperation of two described anti-theft panel (1) covers described center hole port, and on two contact-making surfaces that two described anti-theft panel (1) are in contact with one another, be provided with groove, two described groove fit form described cable-through hole.
3. anti-electricity-theft device according to claim 2, is characterized in that, two described anti-theft panel (1) that described center hole port is covered are connected to each other by a plurality of bolts (4), and are fixed on described housing (2).
4. anti-electricity-theft device according to claim 3, it is characterized in that, the head of bolt described in each (4) is provided with the connecting hole that can be passed by lead sealing line, and all described bolts (4) are passed by same lead sealing line, this lead sealing line lead sealing is in secondary side lead sealing place of described low pressure straight-through current transformer.
5. according to the anti-electricity-theft device described in any one in claim 1-4, it is characterized in that, the material of contractile described insulating case (3) is soft rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410014532.0A CN103714960B (en) | 2014-01-13 | 2014-01-13 | A kind of anti-electricity-theft device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410014532.0A CN103714960B (en) | 2014-01-13 | 2014-01-13 | A kind of anti-electricity-theft device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103714960A true CN103714960A (en) | 2014-04-09 |
| CN103714960B CN103714960B (en) | 2016-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410014532.0A Active CN103714960B (en) | 2014-01-13 | 2014-01-13 | A kind of anti-electricity-theft device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104064341A (en) * | 2014-06-10 | 2014-09-24 | 天津市三源电力设备制造有限公司 | Inverted type current transformer |
| CN107946028A (en) * | 2017-11-23 | 2018-04-20 | 国网河南省电力公司宜阳县供电公司 | The special anti-electricity-theft device of one kind power supply |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060175087A1 (en) * | 2002-05-25 | 2006-08-10 | Guenter Schelling | Electronic device comprising a housing |
| CN201213094Y (en) * | 2008-05-28 | 2009-03-25 | 安徽省电力公司巢湖供电公司 | Low voltage outdoor combined mutual inductor for preventing from electric charge evasion |
| CN201465789U (en) * | 2009-06-04 | 2010-05-12 | 北京恒源利通电力技术有限公司 | Open type current mutual inductor |
| CN202564050U (en) * | 2012-05-23 | 2012-11-28 | 莱芜鲁能开源集团电器有限公司 | Low-voltage current mutual inductor case body for transformer |
-
2014
- 2014-01-13 CN CN201410014532.0A patent/CN103714960B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060175087A1 (en) * | 2002-05-25 | 2006-08-10 | Guenter Schelling | Electronic device comprising a housing |
| CN201213094Y (en) * | 2008-05-28 | 2009-03-25 | 安徽省电力公司巢湖供电公司 | Low voltage outdoor combined mutual inductor for preventing from electric charge evasion |
| CN201465789U (en) * | 2009-06-04 | 2010-05-12 | 北京恒源利通电力技术有限公司 | Open type current mutual inductor |
| CN202564050U (en) * | 2012-05-23 | 2012-11-28 | 莱芜鲁能开源集团电器有限公司 | Low-voltage current mutual inductor case body for transformer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104064341A (en) * | 2014-06-10 | 2014-09-24 | 天津市三源电力设备制造有限公司 | Inverted type current transformer |
| CN107946028A (en) * | 2017-11-23 | 2018-04-20 | 国网河南省电力公司宜阳县供电公司 | The special anti-electricity-theft device of one kind power supply |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103714960B (en) | 2016-06-01 |
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