CN201242558Y - Electric-theft protection alarm indication device for single-phase electric energy meter - Google Patents
Electric-theft protection alarm indication device for single-phase electric energy meter Download PDFInfo
- Publication number
- CN201242558Y CN201242558Y CNU2008201163400U CN200820116340U CN201242558Y CN 201242558 Y CN201242558 Y CN 201242558Y CN U2008201163400 U CNU2008201163400 U CN U2008201163400U CN 200820116340 U CN200820116340 U CN 200820116340U CN 201242558 Y CN201242558 Y CN 201242558Y
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- electric energy
- energy meter
- meter
- watt
- zero line
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Abstract
The utility model discloses an electricity stealing prevention warning and indicating device used for a single-phase watt-hour meter, which comprises an electric conduction block fixed on the back of the casing of the watt-hour meter through a plurality of screws and nuts, and a neon tube and a resistor connected with the electric conduction block in series through a conducting wire; wherein the resistor is electrically connected with a zero line at a load end. Since capacitors and creepage resistors are distributed on the electric conduction block and a meter box or the wall, when the zero line is connected reversely, the neon tube can be turned on, thereby giving an alarm. The electricity stealing prevention warning and indicating device does not consume electric energy, and the meter reading personnel of the power supply department or the power utilization monitoring personnel can judge whether the zero line and the live line of the watt meter of the user are connected reversely on purpose or not to judge whether the user steals power or not without opening a watt meter box or a watt meter connecting box.
Description
Technical field:
The utility model relates to a kind of anti-electricity-theft alarm indicating device, specifically a kind of anti-electricity-theft alarm indicating device that is used for single-phase electric energy meter.
Background technology:
At present, the centralized electric energy meter table case of the general employing of user's single-phase electric energy meter, pvc pipe is into and out of the line mode, and the centralized table case pins with lock, and power supply department sees through the little windowpane of showing on the case and checks meter.Therefore, as adopt conventional stealing electricity method, as bypass electric energy meter current coil, change electric energy meter potential winding, external electricity filching device, walk around the measuring apparatus electricity consumption, changed electric energy meter outward appearance or external cabling or damaged original lead sealing, power supply department meter reading personnel or supervision of power consumption personnel are very easy to find.And the stealing user will zero away from table case place, the intentional reversal connection of phase line, re-use the transformer stealing, once a ground stealing mutually, borrow the ground wire stealing, disconnect stealing electricity methods such as zero line stealing and be difficult to be found.
Electrical energy meter anti-theft electricity device in the past mostly need be at the inner additional anti-electricity-theft electronic installation of electric energy meter, and these devices need to consume several watts to tens watts electric energy mostly, and there are more than one hundred million electric energy meters in the whole nation, because of power consumption is lost more than gain too greatly.Have at the inner relay that uses of electric energy meter, deenergization when user's stealing, but have the contradiction of relay volume and contactless power, burn out the contact easily, when anti-electricity-theft device malfunction or damage and cause when the user had a power failure, cause user's complaint easily, reduced power supply service quality.
The utility model content:
The utility model is for avoiding above-mentioned existing in prior technology weak point, a kind of anti-electricity-theft alarm indicating device that is used for single-phase electric energy meter is provided, and can may alarm user's stealing under the situation of consumed power not.
The utility model technical solution problem adopts following technical scheme:
A kind of anti-electricity-theft alarm indicating device that is used for single-phase electric energy meter comprises a conducting block that is fixed on the electric energy meter watchcase back side, and with neon bulb and the resistance that conducting block is connected successively by lead, resistance is electrically connected with the zero line of load end.
Design feature of the present utility model also is:
Described conducting block is fixed on the back side of electric energy meter watchcase by some screws, nut, is socketed with the Wiring nose that is used to connect lead on a nut therein.
Compared with the prior art, the beneficial effects of the utility model are embodied in:
The utility model connects a conducting block by the back side at the electric energy meter watchcase, conducting block is in series with neon bulb and resistance by lead, the other end of lead is connected on the zero line of electric energy meter internal burden end, because conducting block has distributed capacitance and leak resistance to exist with table case or wall, so when zero line connects inverse time, neon bulb will brighten, thereby sends alarm.
The utility model is consume electric power not, power supply department meter reading personnel or supervision of power consumption personnel are under the situation of not opening ammeter box or ammeter terminal box, just can be according to the alarm indication, judge user's electric energy meter zero, phase line has not by intentional reversal connection, judge then whether the user adopts transformer stealing, a ground stealing mutually, borrow the ground wire stealing, disconnect the possibility of zero line stealing.Simultaneously, the power supply department staff is connect zero, phase line instead and also can provide alarm prompt in the construction mistiming.
Description of drawings:
Fig. 1 is the utility model circuit theory diagrams.
Fig. 2 is the inner front view of electric energy meter watchcase.
Fig. 3 is an electric energy meter watchcase A-A cut-open view.
Number in the figure: 1, conducting block, 2, lead, 3, neon bulb, 4, resistance, 5, screw hole, 6, screw, 7, nut, 8 Wiring noses.
Below pass through embodiment, and the utility model is described in further detail in conjunction with the accompanying drawings.
Embodiment:
Embodiment: referring to Fig. 1-Fig. 3, the anti-electricity-theft alarm indicating device of the single-phase electric energy meter of present embodiment, comprise conducting block 1, lead 2, neon bulb 3 and resistance 4, conducting block can select for use galvanized sheet iron or other sheet metal to make, it is identical with the shape of electric energy meter watchcase that shape can be set to, its size is advisable to be slightly less than the electric energy meter watchcase, thickness is 0.5-1 millimeter, offers screw hole 5 at the electric energy meter watchcase, conducting block is fixed on the back side of electric energy meter watchcase with screw 6 and nut 7, screw hole can be set to four, accordingly, screw and nut also can be set to four groups, socket Wiring nose 8 on the nut therein, by lead 2 connect successively neon bulb 3 and resistance 4, resistance is electrically connected with the zero line of load end on the Wiring nose.Nut 7, lead 2, neon bulb 3 and resistance 4 all are positioned at electric energy meter watchcase inside, in case destroyed.Because conducting block has distributed capacitance and leak resistance to exist with table case or wall, connects inverse time so work as zero line, neon bulb will brighten, thereby sends alarm.
Claims (2)
1, a kind of anti-electricity-theft alarm indicating device that is used for single-phase electric energy meter is characterized in that, comprises a conducting block that is fixed on the electric energy meter watchcase back side, and with neon bulb and the resistance that conducting block is connected successively by lead, resistance is electrically connected with the zero line of load end.
2, a kind of anti-electricity-theft alarm indicating device that is used for single-phase electric energy meter according to claim 1, it is characterized in that, described conducting block is fixed on the back side of electric energy meter watchcase by some screws, nut, is socketed with the Wiring nose that is used to connect lead on a nut therein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201163400U CN201242558Y (en) | 2008-05-12 | 2008-05-12 | Electric-theft protection alarm indication device for single-phase electric energy meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201163400U CN201242558Y (en) | 2008-05-12 | 2008-05-12 | Electric-theft protection alarm indication device for single-phase electric energy meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201242558Y true CN201242558Y (en) | 2009-05-20 |
Family
ID=40715848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201163400U Expired - Fee Related CN201242558Y (en) | 2008-05-12 | 2008-05-12 | Electric-theft protection alarm indication device for single-phase electric energy meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201242558Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103176039A (en) * | 2011-12-20 | 2013-06-26 | 杨东明 | Embedded intelligent electric energy meter |
| CN103336157A (en) * | 2013-06-17 | 2013-10-02 | 王怡凡 | Single-phase electric energy meter capable of identifying electricity stealing of reverse neutral and fire wire connection and neutral wire disconnection |
-
2008
- 2008-05-12 CN CNU2008201163400U patent/CN201242558Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103176039A (en) * | 2011-12-20 | 2013-06-26 | 杨东明 | Embedded intelligent electric energy meter |
| CN103336157A (en) * | 2013-06-17 | 2013-10-02 | 王怡凡 | Single-phase electric energy meter capable of identifying electricity stealing of reverse neutral and fire wire connection and neutral wire disconnection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090520 Termination date: 20100512 |