CN204462219U - Electrical energy metering tank automatic safe is warned circuit - Google Patents
Electrical energy metering tank automatic safe is warned circuit Download PDFInfo
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- CN204462219U CN204462219U CN201520153494.7U CN201520153494U CN204462219U CN 204462219 U CN204462219 U CN 204462219U CN 201520153494 U CN201520153494 U CN 201520153494U CN 204462219 U CN204462219 U CN 204462219U
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- 239000000428 dust Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 241000700159 Rattus Species 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000036626 alertness Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000002650 habitual effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Abstract
The utility model relates to a kind of electrical energy metering tank automatic safe and to warn circuit, bridge rectifier circuit one input termination zero-power line, another input end of bridge rectifier circuit is connected on metering casing, the positive pole of bridge rectifier circuit is connected with one end of resistance R2, resistance R4, resistance R5 and hummer, and the positive pole of bridge rectifier circuit is connected with electric capacity C2 and light emitting diode positive pole; The negative pole of bridge rectifier circuit is connected with one end of resistance R2, the negative pole of bridge rectifier circuit is connected with the negative pole of electric capacity C2, be connected with the emitter of triode Q1 and triode Q2, the base stage of triode Q1 is connected with the other end of resistance R5, the base stage of triode Q1 is connected with the negative pole of electric capacity C4, the positive pole of electric capacity C4 is connected with the collector of one end of resistance R6 and triode Q2, and the other end of resistance R6 is connected with the other end of hummer.Batch meter is made to possess auto-alarm function.
Description
Technical field
The utility model relates to a kind of safety warning circuit, particularly relates to a kind of electrical energy metering tank automatic safe and to warn circuit.
Background technology
Electrical energy metering tank is mainly based on metal material, major equipment comprises casing, watt-hour meter, wire etc., it is the point in succession that enterprise powers to client, that electric energy is allotted and the basic link of measuring, due to its singularity, batch meter has also become powered operation personnel and Electricity customers everyday exposure electric power facility the most frequently.The safe reliability of measuring apparatus has listed the important content of examination of Electric Power Marketing Management in, is electric energy metrical quality management and important indicator client being continued to reliable power supply, the important content of Ye Shi power supply enterprise safety management.As the important component part of measuring apparatus, the safety of batch meter is very important.
Electrical energy metering tank occurs charged, threatens, even occur accident to equipment and personal safety, becomes the large hidden danger in power supply enterprise's safety.The main cause that batch meter is prone to accidents, be that the housing that causes in auxiliary earth loose contact situation is charged, reason is as follows:
(1) be that metering outfit is long neglected and in disrepair, auxiliary earth loose contact, due to neutral line break, affects by dust, humidity, oxidation, damaged by rats and the factor such as aging circuit, wire overload operation, insulation is destroyed, and live wire contacts with tank shell and makes batch meter housing produce voltage;
(2) zero line is because of oxidation, appearance broken string or loose contact, causes batch meter housing charged;
(3) take metal as the old measuring apparatus of shell, history is formed does not have design and installation auxiliary earthing apparatus when mounted, when zero line loose contact, live wire contact casing, causes tank shell with voltage, as resident and low-voltage-powered family etc. on outdoor bar, on wall.
The maximum potential safety hazard of electrical energy metering tank is exactly human body electrification, and main cause has following several respects:
(1) electric energy metrical working site does not possess the advantage of large-scale working site, in electricity consumption on-the-spot tour, inspection, maintenance, repair to measuring apparatus, the work such as to check meter, staff is in the state periodically repeating same work for a long time, easily the safe decline in alertness of habitual generation.
(2) electrical energy metering tank is generally in public place, is easy to be arrived by client or even child getting in contact, and most client does not possess specialty safety knowledge and standard operation ability, does not evade dangerous consciousness, lacks safe precaution measure and monitoring tool.
(3) electrical energy metering tank selecting in installation site, particularly Urban Residential District, building etc., mostly all in the corner location that light difference, visual effect are not good, there is no fixing light fixture, and affect by wetness and the more high factor of dust degree, case sight glass easily dirt is dirty, particularly checks meter make troubles to work on the spot.
Summary of the invention
There is provided a kind of electrical energy metering tank automatic safe to warn circuit to solve the problems of the technologies described above the utility model, object is when casing occurring being charged, can carry out acousto-optic in time and alternately report to the police.
To warn circuit for reaching above-mentioned purpose the utility model electrical energy metering tank automatic safe, bridge rectifier circuit one input termination zero-power line, another input end of bridge rectifier circuit is connected on metering casing, the positive pole of bridge rectifier circuit is connected with one end of resistance R2, resistance R4, resistance R5 and hummer, and the positive pole of bridge rectifier circuit is connected with electric capacity C2 and light emitting diode positive pole, the negative pole of bridge rectifier circuit is connected with one end of resistance R2, the negative pole of bridge rectifier circuit is connected with the negative pole of electric capacity C2, be connected with the emitter of triode Q1 and Q2, the base stage of triode Q1 is connected with the other end of resistance R5, the base stage of triode Q1 is connected with the negative pole of electric capacity C4, the positive pole of electric capacity C4 is connected with the collector of one end of resistance R6 and triode Q2, the other end of resistance R6 is connected with the other end of hummer, the base stage of triode Q2 is connected with the negative pole of electric capacity C3, the positive pole of electric capacity C3 is connected with the collector of one end of resistance R5 and triode Q1, the other end of resistance R5 is connected with light emitting diode negative pole.
Resistance R1 is provided with, resistance R1 two ends shunt capacitance C1 between metering casing and bridge rectifier circuit.
Triode Q1 and triode Q2 is NPN type.
The utility model has the advantages of: make batch meter possess auto-alarm function.Easy to use, simple to operate, safety and stability; Be applicable to various geography and climatic environment, input cost is low, energy-conserving and environment-protective, long service life.
Accompanying drawing explanation
Fig. 1 is circuit diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
The utility model electrical energy metering tank automatic safe is warned circuit as shown in the figure, bridge rectifier circuit input end N connects zero-power line, another input end of bridge rectifier circuit L is connected on metering casing, the positive pole of bridge rectifier circuit is connected with one end of resistance R2, resistance R4, resistance R5 and hummer, and the positive pole of bridge rectifier circuit is connected with electric capacity C2 and light emitting diode positive pole, the negative pole of bridge rectifier circuit is connected with one end of resistance R2, the negative pole of bridge rectifier circuit is connected with the negative pole of electric capacity C2, be connected with the emitter of triode Q1 and Q2, the base stage of triode Q1 is connected with the other end of resistance R5, the base stage of triode Q1 is connected with the negative pole of electric capacity C4, the positive pole of electric capacity C4 is connected with the collector of one end of resistance R6 and triode Q2, the other end of resistance R6 is connected with the other end of hummer, the base stage of triode Q2 is connected with the negative pole of electric capacity C3, the positive pole of electric capacity C3 is connected with the collector of one end of resistance R5 and triode Q1, the other end of resistance R5 is connected with light emitting diode negative pole.Triode Q1 and triode Q2 is NPN type.
Resistance R1 is provided with, resistance R1 two ends shunt capacitance C1 between metering casing and bridge rectifier circuit.
The utility model analog voltage is 36-250V, through the bridge rectifier circuit that diode D1-D4 forms, again after resistance R2, electric capacity C2 carry out filtering, monostable circuit is formed by triode Q1, triode Q2, resistance R3, resistance R4, resistance R5, resistance R6, electric capacity C3 and electric capacity C4, under casing electriferous state, light emitting diode LED and hummer HA is made alternately to send sound and light alarm.
Claims (3)
1. electrical energy metering tank automatic safe is warned circuit, it is characterized in that bridge rectifier circuit one input termination zero-power line, another input end of bridge rectifier circuit is connected on metering casing, the positive pole of bridge rectifier circuit is connected with one end of resistance R2, resistance R4, resistance R5 and hummer, and the positive pole of bridge rectifier circuit is connected with electric capacity C2 and light emitting diode positive pole, the negative pole of bridge rectifier circuit is connected with one end of resistance R2, the negative pole of bridge rectifier circuit is connected with the negative pole of electric capacity C2, be connected with the emitter of triode Q1 and triode Q2, the base stage of triode Q1 is connected with the other end of resistance R5, the base stage of triode Q1 is connected with the negative pole of electric capacity C4, the positive pole of electric capacity C4 is connected with the collector of one end of resistance R6 and triode Q2, the other end of resistance R6 is connected with the other end of hummer, the base stage of triode Q2 is connected with the negative pole of electric capacity C3, the positive pole of electric capacity C3 is connected with the collector of one end of resistance R5 and triode Q1, the other end of resistance R5 is connected with light emitting diode negative pole.
2. electrical energy metering tank automatic safe according to claim 1 is warned circuit, it is characterized in that being provided with resistance R1, resistance R1 two ends shunt capacitance C1 between metering casing and bridge rectifier circuit.
3. electrical energy metering tank automatic safe according to claim 1 is warned circuit, it is characterized in that triode Q1 and triode Q2 is NPN type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520153494.7U CN204462219U (en) | 2015-03-18 | 2015-03-18 | Electrical energy metering tank automatic safe is warned circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520153494.7U CN204462219U (en) | 2015-03-18 | 2015-03-18 | Electrical energy metering tank automatic safe is warned circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204462219U true CN204462219U (en) | 2015-07-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520153494.7U Active CN204462219U (en) | 2015-03-18 | 2015-03-18 | Electrical energy metering tank automatic safe is warned circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204462219U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104678142A (en) * | 2015-03-18 | 2015-06-03 | 国网辽宁省电力有限公司丹东供电公司 | Automatic safety warning circuit of electric energy metering box |
| PL422457A1 (en) * | 2017-08-07 | 2019-02-11 | APATOR Spółka Akcyjna | Feed system, preferably in electric energy meters |
-
2015
- 2015-03-18 CN CN201520153494.7U patent/CN204462219U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104678142A (en) * | 2015-03-18 | 2015-06-03 | 国网辽宁省电力有限公司丹东供电公司 | Automatic safety warning circuit of electric energy metering box |
| PL422457A1 (en) * | 2017-08-07 | 2019-02-11 | APATOR Spółka Akcyjna | Feed system, preferably in electric energy meters |
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| C14 | Grant of patent or utility model | ||
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