CN1057526A - A kind of anti-electricity-theft circuit - Google Patents
A kind of anti-electricity-theft circuit Download PDFInfo
- Publication number
- CN1057526A CN1057526A CN 90104279 CN90104279A CN1057526A CN 1057526 A CN1057526 A CN 1057526A CN 90104279 CN90104279 CN 90104279 CN 90104279 A CN90104279 A CN 90104279A CN 1057526 A CN1057526 A CN 1057526A
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- lead
- conductor
- electricity
- fuse
- betal
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Abstract
The invention discloses a kind of anti-electricity-theft circuit.
In order to make anti-electricity-theft circuit simpler, reliable operation, reduce cost, prolong guard space, the invention provides a kind of novel anti-electricity-theft circuit.Its feature is by fuse, electric power meter, and the lead of unique construction constitutes.This anti-electricity-theft circuit can be used for single-phase or three-phase power line in, steal electric energy to prevent illegal user.
Description
The invention belongs to the protection circuit that prevents stealing.
Known anti-electricity-theft circuit has polytype, and still, no matter these circuits are induction types, and still other forms of, structure is all very complicated and electrical part is many.This just makes cost improve; In addition, the distance protected of these circuits is restricted.
The objective of the invention is to avoid the shortcoming of above-mentioned publicly-owned technology and a kind of new anti-electricity-theft circuit is provided.
The present invention can reach by following measure:
The characteristics of this anti-electricity-theft circuit are to be made of following part:
A, lead 1, the flexible annular betal can 11 that it is contained with insulating material by the outside and many conductor 12,13, the 14(or 12,13,14,15 that have insulating material to contain that interwind of the inside thereof) form;
B, fuse 2, its corresponding contact respectively with lead 1 in conductor 13,14(or conductor 13,14,15) link to each other with the power lead of single phase power supply (or three phase supply);
C, electric power meter 3, its input end and conductor 13,14(or conductor 13,14,15) link to each other its output terminal and conductor 12, lead 4(or conductor 12, lead 4, lead 5) link to each other;
D, lead 1 link to each other with conductor 12 away from an end betal can 11 of electric power meter 3.
The present invention can also reach by following measure: its feature is the extension line of above-mentioned anti-electricity-theft circuit betal can 11 and the extension line and lead 4, lead 5 of lead 4(or betal can 11) link to each other with load by fuse 6 respectively, and the capacity of fuse 6 is less than the capacity of fuse 2.When user's stealing, can make line short, cause the fusible link of fuse 2 to blow, and the fuse 6 of user's control is intact; When the reason owing to load caused short circuit, the fusible link of fuse 6 was blown and fuse 2 is intact, whether can distinguish electricity filching behavior like this.
In the hole 71 of the end cap 7 of the band lead sealing of the one end insertion electric power meter 3 of lead 1, in the hole 81 of other end insertion by the endpiece pilfered-proof electric box 8 of the fuse 2 of lead sealing control, prevent that electricity filching person is in the stealing of the two ends of lead 1.
Fig. 1 is the anti-electricity-theft conspectus when being used for single phase power supply;
Fig. 2 is the anti-electricity-theft conspectus when being used for three phase supply;
Fig. 3 is the cross sectional representation of lead 1.
The present invention is further described below in conjunction with (accompanying drawing) embodiment.
Among Fig. 1 11 is the flexible annular betal can of lead 1, its outside surface has insulating material such as one deck plastics or rubber, three conductors 12,13,14 that are surrounded by plastics or rubber that interwind are arranged in the betal can 11, one end of conductor 13,14 links to each other with the single phase poaer supply line by fuse 2, the other end links to each other with the input end of electric power meter 3, and an end of conductor 12 links to each other with the output terminal of the live wire of electric power meter 3; The other end links to each other with betal can 11; Electric power meter 3 another output terminals link to each other with lead 4; The lead of lead 4 and betal can 11 links to each other with load by fuse 6 through the hole 72 of the end cap 7 of the band lead sealing of electric power meter 3; One end of lead 1 inserts in the hole 71 of end cap 7, and the other end inserts in the hole 81 of the fuse 2 endpiece pilfered-proof electric box of being controlled by lead sealing 8, commits theft at the two ends of lead 1 to prevent electricity filching person.
The key distinction of Fig. 2 and Fig. 1 is that the betal can 11 interior conductors of lead 1 have 4, conductor 12,13,14 and 15 is promptly arranged, except conductor 12 and betal can 11 the end away from electric power meter links to each other, the two ends of conductor 13,14,15 link to each other with the three-phase input end of fuse 2 with electric power meter 3 respectively.
The outside surface of the conductor 12,13,14,15 among Fig. 3 is to surround reaching the purpose of insulation with plastics or elastomeric material, and they have the metallic snakeskin pipe of insulation course by appearance together or shield the netted endless metal shell 11 of worn-out line formula and encase.
When single-phase electricity (or three-phase electricity) user normally uses circuit of the present invention, load can be passed through the input end of power lead, fuse 2, conductor 13,14, (or conductor 13,14,15) electric power meter 3, lead 4(or lead 4,5 that the live wire output terminal of electric power meter 3, conductor 12, betal can 11 and its extension line link to each other with another (or two) output terminal of electric power meter 3), obtain electric energy through overcurrent fuse 6 again.
The invention provides the lead 1 that is used for self-protection, be that the shell of lead links to each other with the live wire output terminal of electric power meter 3, as want stealing, must cut off betal can, this is easy to cause short circuit.In case short circuit, the fusible link of fuse 2 is blown, even electricity filching person very much carefully cuts off the shell 11 of lead 1, because the conductors 12 that link to each other with electric power meter 3 output terminals in addition in the betal can 11, electricity filching person is difficult to find out the conductor that links to each other with the electric power meter input end to reach the stealing purpose; In addition, all insert in the over cap, make the electricity filching person can not be in the stealing of the two ends of lead 1 at the two ends of lead 1; Because the load current value of fuse 6 is less than the load current value of fuse 2, therefore when the electric consumer was short-circuited owing to the reason of load, whether the fusible link of molten electrical equipment 6 was blown earlier, be electricity filching behavior to distinguish.
The present invention has compared following advantage with known technology,
1, simple in structure, expense is low,
2, reliable operation, power-steeling preventing effect is good,
3, anti-electricity-theft operating distance can prolong arbitrarily.
Claims (3)
1, a kind of anti-electricity-theft circuit is characterized in that being made of following part:
A, lead 1, interwind many of flexible annular betal can 11 that it is contained by the outer insulation material and the inside thereof have the conductor 12,13,14 (perhaps conductor 12,13,14,15) that insulating material contains to form;
B, fuse 2, its tie point link to each other with conductor 13,14, (perhaps conductor 13,14,15) and single-phase (or three-phase) power lead respectively;
C, electric power meter 3, its input end links to each other with conductor 13,14 (perhaps conductor 13,14,15), the conductor 12 of its output terminal and lead 1,, lead 4 (perhaps conductor 12, lead 4, lead 5) links to each other;
The flexible annular betal can 11 away from an end of electric power meter 3 of D, lead 1 links to each other with conductor 12.
2, according to claim 1 described a kind of anti-electricity-theft circuit, it is characterized in that: betal can 11 and conductor 4(or betal can 11 and lead 4, lead 5) link to each other with load by fuse 6 respectively, the current capacity of fuse 6 is less than the electric current container of fuse 2.
3, according to claim 1 or 2 described anti-electricity-theft circuits: it is characterized in that: in the hole 71 of the end cap 7 of the band lead sealing of the end insertion electric power meter 3 of lead 1, the other end inserts in the hole 81 of the fuse 2 endpiece pilfered-proof electric box of being controlled by lead sealing 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90104279 CN1057526A (en) | 1990-06-16 | 1990-06-16 | A kind of anti-electricity-theft circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90104279 CN1057526A (en) | 1990-06-16 | 1990-06-16 | A kind of anti-electricity-theft circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1057526A true CN1057526A (en) | 1992-01-01 |
Family
ID=4878475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90104279 Pending CN1057526A (en) | 1990-06-16 | 1990-06-16 | A kind of anti-electricity-theft circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1057526A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102364356A (en) * | 2011-09-30 | 2012-02-29 | 中国石油化工股份有限公司 | Electric energy meter applied load on-site anti-electricity-stealing detector and detection method |
-
1990
- 1990-06-16 CN CN 90104279 patent/CN1057526A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102364356A (en) * | 2011-09-30 | 2012-02-29 | 中国石油化工股份有限公司 | Electric energy meter applied load on-site anti-electricity-stealing detector and detection method |
| CN102364356B (en) * | 2011-09-30 | 2015-02-04 | 中国石油化工股份有限公司 | Electric energy meter applied load on-site anti-electricity-stealing detector and detection method |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |