CN1316648A - Method for monitoring electric comsumption - Google Patents
Method for monitoring electric comsumption Download PDFInfo
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- CN1316648A CN1316648A CN 01106904 CN01106904A CN1316648A CN 1316648 A CN1316648 A CN 1316648A CN 01106904 CN01106904 CN 01106904 CN 01106904 A CN01106904 A CN 01106904A CN 1316648 A CN1316648 A CN 1316648A
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- electricity consumption
- monitoring
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Abstract
An electric comsumption monitor method for monitoring normal and abnormal electric consumptions is invented. The sum of three phase currents, the start and stop time when said sum changes, the time when the gate of metering cabinet is opened or closed, the voltage value and if the electric power is consumed, are monitored. The single-chip computer, calendar and timer circuit, data register, digital indicator and printer are used for monitoring said parameters and their recording, storing or printing out.
Description
The present invention relates to a kind of method of monitoring electricity consumption, particularly monitor the method for unusual consumption.
The existing power system many nationalitys of electricity consumption monitoring method help voltage decompression registering instrument that the voltage circuit of electricity consumption electric energy metrical is monitored, but it is very undesirable, the various artificial or non-artificial obstruction electric energy that occurs in the actual electricity consumption is the problem of metering accurately, the simple method that relies on voltage decompression registering instrument to come the voltage circuit of electricity consumption electric energy metrical is monitored can not satisfy the needs of electricity consumption monitoring far away, particularly for stealing and super metering electricity consumption, it is incompetent unable that existing electricity consumption monitoring method has seemed.This is a great problem of electric system electricity consumption monitoring aspect.
The object of the present invention is to provide a kind of electricity consumption monitoring method, particularly to the electricity consumption monitoring method under the unusual electricity consumption situation, it is that the three-phase current summation that mainly detects three phase supply is come the method for detection situation except that detecting voltage.
Technology implementation scheme of the present invention is a kind of electricity consumption monitoring method, voltage and current by the electricity consumption of monitoring three-phase is monitored electricity consumption, and major measure is to monitor normal electricity consumption of three-phase and unusual electricity consumption such as stealing and super metering by the method for the three-phase current summation of monitoring three-phase electricity consumption.
Description of drawings is as follows:
Accompanying drawing 1 three-phase electricity consumption monitoring method synoptic diagram
Accompanying drawing 2 three-phase electricity consumption monitoring method circuit connect example
The present invention further specifies as follows in conjunction with specific embodiments referring to accompanying drawing, a kind of electricity consumption monitoring method, be applicable to the three-phase electricity consumption monitoring, can monitor normal electricity consumption of three-phase and unusual electricity consumption, this method is to monitor electricity consumption by the voltage of three-phase electricity consumption, electric current, monitor normal electricity consumption of three-phase and unusual electricity consumption by the three-phase current summation of monitoring three-phase electricity consumption, with the mutual inductor CT of three-phase with the three-phase current on the electric line
1, CT
2, CT
3Be connected into star and connect star neutral earthing, electric energy meter WH
1, WH
2And V
2Connection is connected in three branch roads of star connection routinely, and three terminations of star are connected in parallel and export three-phase electricity consumption total current, receive current sense transformer (1) T
1Former limit winding N
1One end, N
1Other end ground connection, secondary winding N
2The output electric signal connects single-chip microcomputer (4) CPU processor, and when the normal electricity consumption of three-phase, no matter the three-phase electricity symmetry whether, three-phase electricity consumption electric current summation is zero, T
1No signal output, the electric current of the electric energy meter of flowing through when the unusual electricity consumption of three-phase is shunted, thereby makes CT
1, CT
2, CT
3The three-phase current summation of output in parallel is non-vanishing, T
1Signal output is arranged, can measure record, store the generation moment, number of times and the semi-invariant of unusual electricity consumption, the line item of going forward side by side, storage and print result by single-chip microcomputer (4) CPU and auxiliary circuit, calendar clock circuit (6) and printer (5).
The three-phase voltage transformer pt of electric line
1, PT
2The three-phase voltage signal of gathering is sent into the singlechip CPU processor through voltage detecting circuit (2), detects the voltage of three-phase electricity consumption; Connect formation electricity consumption electric energy metrical cabinet door open detection circuit by cabinet door position switch (3) S that is arranged on electricity consumption electric energy metrical cabinet cabinet door place with the singlechip CPU processor through connecting line, taking this auxiliary monitoring electricity consumption electric energy metrical cabinet door opens, open record is compared during with operate as normal, can investigate because stealing and non-normal working are opened the unusual electricity consumption that the electric energy metrical cabinet is changed equipment, circuit.
The embodiment of electricity consumption monitoring method of the present invention observation circuit more specifically connects referring to accompanying drawing 2, voltage detecting circuit among the figure (7), current balance type testing circuit (8), with power detection circuit (9), calendar clock circuit (10), data register circuit (11), digital display circuit (12), working power circuit (15), and printer (14) electrically connect with single chip circuit (13) respectively, (13) can be computer, circuit (7) and usefulness electric line threephase potential transformer PT
1, PT
2Electrically connect circuit (8), (9) and usefulness electric line threephase current transformer CT
1, CY
2, CT
3Electrically connect.Circuit (15) provides reliable monitoring power supply, circuit (7) monitoring utilization voltage, circuit (8) monitoring three-phase electricity consumption electric current summation, whether circuit (9) monitoring is in the electricity consumption electricity consumption, circuit (7), (8), (9) output signal are sent into single chip circuit (13) and are handled, the switch S in the circuit (13)
1Be arranged on electricity consumption electric energy metrical cabinet door place, S
1The monitor signal that provides its cabinet door to open, co-operation in conjunction with auxiliary circuit (10) (11), (12), (14), like this, nationality helps single-chip microcomputer or computer and auxiliary circuit thereof, comprise calendar clock circuit, data register circuit, digital display circuit and printer, just can monitor the unusual electricity consumption of each time and take place constantly and the duration, and accumulate unusual electricity consumption frequency and each time duration accumulated total thereof.
Advantage of the present invention is both to have monitored the normal electricity consumption of three-phase, can monitor again the unusual electricity consumption of three-phase, and is logical Cross monitoring three-phase electricity consumption electric current summation and monitor the unusual electricity consumption generation moment, duration, cumulative frequency And cumulative duration, even can monitor separate, the position of circuit that unusual electricity consumption takes place, different for investigating Electricity commonly used especially for investigating stealing and super metering electricity consumption, remedying or move back and mend electric energy, the electricity charge, provides Objective basis is conducive to effectively stop huge energy loss and the economic loss that stealing causes.
Claims (4)
1, a kind of electricity consumption monitoring method by voltage, the current monitoring electricity consumption of monitoring three-phase electricity consumption, comprises normal electricity consumption of monitoring and unusual electricity consumption, it is characterized in that coming normal electricity consumption of three-phase and unusual electricity consumption such as stealing and super metering by the method for monitoring three-phase current summation.
2, electricity consumption detection method according to claim 1 is characterized in that auxiliary monitoring electricity consumption metering cabinet cabinet door is opened constantly simultaneously.
3, electricity consumption detection method according to claim 1, its feature is monitored the unusual electricity consumption of each time at it and is taken place constantly and the duration, and nationality helps single-chip microcomputer or computer and auxiliary circuit thereof, comprise calendar clock circuit, data register circuit, digital display circuit and printer, accumulate unusual electricity consumption frequency and each time duration accumulated total thereof, the line item of going forward side by side, storage and print result.
4, electricity consumption monitoring method according to claim 1 and 2 is characterized in that monitoring that electricity consumption metering cabinet cabinet door opens constantly is that nationality is provided with cabinet door position switch at electricity consumption metering cabinet cabinet door place and realizes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01106904 CN1316648A (en) | 2001-02-28 | 2001-02-28 | Method for monitoring electric comsumption |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01106904 CN1316648A (en) | 2001-02-28 | 2001-02-28 | Method for monitoring electric comsumption |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1316648A true CN1316648A (en) | 2001-10-10 |
Family
ID=4655864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01106904 Pending CN1316648A (en) | 2001-02-28 | 2001-02-28 | Method for monitoring electric comsumption |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1316648A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106093683A (en) * | 2016-06-29 | 2016-11-09 | 河南平芝高压开关有限公司 | Heater broken wire detection system and wire break detection method |
| CN111443226A (en) * | 2020-06-15 | 2020-07-24 | 国网江西综合能源服务有限公司 | Electricity stealing analysis method utilizing low current record of three-phase intelligent meter |
-
2001
- 2001-02-28 CN CN 01106904 patent/CN1316648A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106093683A (en) * | 2016-06-29 | 2016-11-09 | 河南平芝高压开关有限公司 | Heater broken wire detection system and wire break detection method |
| CN106093683B (en) * | 2016-06-29 | 2019-03-12 | 河南平芝高压开关有限公司 | Heater broken wire detection system and wire break detection method |
| CN111443226A (en) * | 2020-06-15 | 2020-07-24 | 国网江西综合能源服务有限公司 | Electricity stealing analysis method utilizing low current record of three-phase intelligent meter |
| CN111443226B (en) * | 2020-06-15 | 2020-12-08 | 国网江西综合能源服务有限公司 | Electricity stealing analysis method utilizing low current record of three-phase intelligent meter |
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