CN102651157B - Automatic alarm device for electric power shutdown of power distribution transformer - Google Patents
Automatic alarm device for electric power shutdown of power distribution transformer Download PDFInfo
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- CN102651157B CN102651157B CN201210130715.XA CN201210130715A CN102651157B CN 102651157 B CN102651157 B CN 102651157B CN 201210130715 A CN201210130715 A CN 201210130715A CN 102651157 B CN102651157 B CN 102651157B
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- 239000003990 capacitor Substances 0.000 claims abstract description 15
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- 238000012271 agricultural production Methods 0.000 description 1
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Abstract
The invention relates to an automatic alarm device for electric power shutdown of a power distribution transformer. The automatic alarm device comprises a step-down transformer, a bridge rectifier, an oscillator, a mobile phone and two relays, wherein the input end of the step-down transformer is connected with the output end of the power distribution transformer, output voltage is rectified by the bridge rectifier and filtered by a first capacitor, and then used for supplying power to a control coil of the first relay and charging a second capacitor via a first diode, the voltage of the second capacitor is added on the control coil of the second relay and can further charge a third capacitor via a second diode, the voltage of the third capacitor can supply the power to the oscillator by passing through a normally closed contact of the first relay and a normally open contact of the second relay, and the output end of the oscillator is connected with a replay key of the mobile phone via a photoelectric coupler. The automatic alarm device disclosed by the invention has not only a simple structure but also the advantages of wide signal coverage area, no limitations on places, strong anti-interference capability and the like, and can ensure timely transmission of alarm signals and improve the reliability in power supply.
Description
Technical field
The present invention relates to a kind ofly can, at substation transformer because breaking down or during stolen power-off, automatically sending the device of alerting signal, belong to alarm technique field.
Background technology
Substation transformer is the visual plant in supply network, and transformer dead electricity can have a strong impact on people's life and bring about great losses to industrial and agricultural production.Safe operation in order to ensure substation transformer, many transformers have been installed dead electricity warning device, once transformer is stopped power supply because of stolen or fault, dead electricity warning device will send alerting signal, so that staff can take corresponding measure in time, substation transformer is restored electricity as early as possible.
Because structural design is unreasonable, there are many deficiencies in traditional transformer dead electricity warning device: first, the signal transmission distance of existing dead electricity warning device can not be over 10 kilometers, and antijamming capability is poor, often there is wrong report and fail to report phenomenon, be difficult to guarantee the timely transmission of alerting signal, easily cause long-time power failure; Secondly, use specialized equipment to receive alerting signal, staff must accept warning at duty room, uses very inconvenient; In addition, existing transformer dead electricity warning device complex structure, manufacturing cost is higher.Therefore, traditional transformer dead electricity warning device can not meet request for utilization, is necessary to be improved.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of substation transformer dead electricity autoalarm of simple in structure, with low cost, easy to use, reliable operation is provided.
Problem of the present invention realizes with following technical proposals:
A kind of substation transformer dead electricity autoalarm, formation comprises step-down transformer, bridge rectifier, oscillator, mobile phone, two relays, two diodes and three electric capacity, the output terminal of the input termination substation transformer of described step-down transformer, its output voltage is the control coil power supply of the first relay and is the second capacitor charging through the first diode after bridge rectifier rectification and the first capacitor filtering, the voltage of the second electric capacity is added on the control coil of the second relay and through the second diode to the 3rd capacitor charging, the voltage of the 3rd electric capacity is powered to oscillator through the normally closed contact of the first relay and the normally opened contact of the second relay of series connection successively, the output terminal of oscillator is through the replay key of photoelectrical coupler catcher machine.
Above-mentioned substation transformer dead electricity autoalarm, base chip when described oscillator adopts NE555, the normally opened contact that during described NE555,4 pin of base chip and 8 pin connect the second relay is also successively through the first resistance, the second resistance and the 4th capacity earth, 7 pin of base chip during being connected in series point and meeting NE555 of the first resistance and the second resistance, 2 pin and 6 pin of base chip during being connected in series point and meeting NE555 of the second resistance and the 4th electric capacity, 4 pin of base chip and the filter capacitor of 8 pin when the 5th electric capacity is NE555, during NE555,5 pin of base chip are through the 6th capacity earth; During NE555, the pulse signal of 3 pin outputs of base chip drives the light emitting diode of photoelectrical coupler.
Above-mentioned substation transformer dead electricity autoalarm, in formation, also comprise cell phone charging circuit, described cell phone charging circuit comprises three terminal regulator, the output terminal of the input termination bridge rectifier of described three terminal regulator, output terminal charges the phone through the 3rd diode and the 3rd resistance successively, and the 7th electric capacity is the filter capacitor of three terminal regulator output terminal.
Above-mentioned substation transformer dead electricity autoalarm is provided with fuse in the input circuit of step-down transformer.
The present invention utilizes two relays when substation transformer dead electricity, automatically to connect the feed circuit of oscillator, triggers mobile phone report to the police to staff by oscillator.With traditional warning device, compare, this device is not only simple in structure, and has the advantages such as signal cover is wide, reception place is unrestricted, antijamming capability is strong, can guarantee that alerting signal transmits in time, shorten to greatest extent power off time, improve the reliability of power supply.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the invention will be further described.
Fig. 1 is electrical schematic diagram of the present invention.
In figure, each label is: T, transformer; FU, fuse; ZQ, bridge rectifier; Base chip when U1, NE555; U2, photoelectrical coupler; U3, three terminal regulator; U4, mobile phone; J1, the first relay; J2, the second relay; The normally closed contact of J1-1, the first relay; The normally opened contact of J2-1, the second relay; R1～R3, resistance; D1～D3, diode; C1～C7, electric capacity.
Embodiment
Referring to Fig. 1, this device is drawn 220V alternating current by the air switch of substation transformer panel box, 220V alternating current enters transformer T through 0.5A fuse FU, after transformer T step-down, becomes 12V alternating voltage, then becomes 12V DC voltage through bridge rectifier ZQ.12V DC voltage is given relay J 1, J2, capacitor C 2, C3 power supply after capacitor C 1 filtering simultaneously, J1, the adhesive simultaneously of J2 relay (now J2-1 is closed, but J1-1 disconnects, and the power supply of U1 is cut off), and circuit enters normal operating conditions.
When substation transformer is stolen or break down tripping operation dead electricity, the power-off of 220V alternating current, relay J 1 dead electricity discharges, its normally closed contact J1-1 is closed, 2 of relay J continue adhesive because C2 has been recharged, so the voltage in capacitor C 3 is added on the oscillator consisting of U1 through J1-1, J2-1, make circuit starting of oscillation, the pulse dialing voltage of the 3 pin outputs of U1 triggers the replay key (before the installation of this device, must dial with mobile phone U4 primary power distribution transformer responsible official's cell-phone number) of mobile phone U4 through photoelectrical coupler U2.Substation transformer responsible official receives the incoming call of certain substation transformer alarm mobile phone, and this substation transformer dead electricity is described.Because be approximately 3 seconds the discharge time of C2, so J2-1 disconnected afterwards about 3 seconds greatly, oscillatory circuit power-off quits work.
Facts have proved, this alarm equipment alarm at the right time, can effectively prevent that transformer is stolen, has improved power supply reliability and service level greatly.As about 2:00 AM clock on August 12, Ma Yingbei well transformer is called suddenly, and transformer responsible official organizes near operator on duty reaches the spot after more than 30 minute, and theft personnel escape, although theft personnel are not arrested, transformer is not stolen.2:00 AM is because of strong wind, certain transformer power failure again, and after responsible official receives the report for police service, establishment officer rushes to repair immediately, if do not have mobile phone automatic alarm may need to wait until that daybreak just someone will make a phone call to report for repairment.After some transformer faults have a power failure, user thinks that power department, at maintenance circuit, so also do not inform power department, causes power off time longer.Use after this alarm, when section in office no matter, once substation transformer because of fault trip dead electricity, responsible official immediately establishment officer rushes to repair, thereby has improved power supply reliability.
In Fig. 1, the parameter of each parts or model are:
C1:25V 100uf D1, D2, D3:1N4007 photoelectrical coupler U2:817
C2:25V 4700uf J1, J2:12V relay T:220V become 12V 3W transformer
C3:25V 4700uf U1:NE555 three terminal regulator U3:7805
C4:25V 4.7uf R1, R2: 100K ohm
C5:0.01uf R3: 1K ohm
C6:16V?10uf。
Claims (3)
1. a substation transformer dead electricity autoalarm, is characterized in that, it comprises step-down transformer (T), bridge rectifier (ZQ), oscillator, mobile phone (U4) and two relays, the output terminal of the input termination substation transformer of described step-down transformer (T), its output voltage is the control coil power supply of the first relay (J1) and is the second electric capacity (C2) charging through the first diode (D1) after bridge rectifier (ZQ) rectification and the first electric capacity (C1) filtering, the voltage of the second electric capacity (C2) is added on the control coil of the second relay (J2) and through the second diode (D2) to the 3rd electric capacity (C3) charging, the voltage of the 3rd electric capacity (C3) is powered to oscillator through the normally closed contact (J1-1) of the first relay and the normally opened contact (J2-1) of the second relay of series connection successively, the output terminal of oscillator is through the replay key of photoelectrical coupler (U2) catcher machine (U4),
Base chip (U1) when described oscillator adopts NE555, the normally opened contact (J2-1) that during NE555,4 pin of base chip (U1) and 8 pin connect the second relay is also successively through the first resistance (R1), the second resistance (R2) and the 4th electric capacity (C4) ground connection, 7 pin of base chip (U1) during being connected in series point and meeting NE555 of the first resistance (R1) and the second resistance (R2), 2 pin and 6 pin of base chip (U1) during being connected in series point and meeting NE555 of the second resistance (R2) and the 4th electric capacity (C4), 4 pin of base chip (U1) and the filter capacitor of 8 pin when the 5th electric capacity (C5) is NE555, during NE555,5 pin of base chip (U1) are through the 6th electric capacity (C6) ground connection, during NE555, the pulse signal of 3 pin outputs of base chip (U1) drives the light emitting diode of photoelectrical coupler (U2).
2. substation transformer dead electricity autoalarm according to claim 1, it is characterized in that, it also comprises cell phone charging circuit, described cell phone charging circuit adopts three terminal regulator (U3), the output terminal of the input termination bridge rectifier (ZQ) of described three terminal regulator (U3), the output terminal of three terminal regulator (U3) charges the phone through the 3rd diode (D3) and the 3rd resistance (R3) successively, and the 7th electric capacity (C7) is the filter capacitor of three terminal regulator (U3) output terminal.
3. substation transformer dead electricity autoalarm according to claim 2, is characterized in that, is provided with fuse (FU) in the input circuit of step-down transformer (T).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210130715.XA CN102651157B (en) | 2012-04-29 | 2012-04-29 | Automatic alarm device for electric power shutdown of power distribution transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210130715.XA CN102651157B (en) | 2012-04-29 | 2012-04-29 | Automatic alarm device for electric power shutdown of power distribution transformer |
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| Publication Number | Publication Date |
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| CN102651157A CN102651157A (en) | 2012-08-29 |
| CN102651157B true CN102651157B (en) | 2014-02-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210130715.XA Expired - Fee Related CN102651157B (en) | 2012-04-29 | 2012-04-29 | Automatic alarm device for electric power shutdown of power distribution transformer |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108803461B (en) * | 2017-04-27 | 2024-04-12 | 上海漕泾热电有限责任公司 | Power plant control system with power failure alarm |
| CN108594073A (en) * | 2018-04-27 | 2018-09-28 | 国家电网公司 | Autoalarm based on mobile phone after dead electricity |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5428494A (en) * | 1984-10-24 | 1995-06-27 | Omtronics Corp. | Power line protector, monitor and management system |
| CN2935291Y (en) * | 2006-07-19 | 2007-08-15 | 康佳集团股份有限公司 | Remote anti-theft alarm |
| CN201145704Y (en) * | 2007-08-24 | 2008-11-05 | 洛阳津祥科技有限责任公司 | Platform zone power off notifying device |
| CN201126615Y (en) * | 2007-12-15 | 2008-10-01 | 顾新民 | Anti-theft alarm for field consumer |
| CN202563614U (en) * | 2012-04-29 | 2012-11-28 | 沧州供电公司 | Automatic alarm for electrical loss of distribution transformer |
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Owner name: STATE ELECTRIC NET CROP. HEBEI ELECTRIC POWER CORP Effective date: 20121008 |
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Effective date of registration: 20121008 Address after: 061001 No. 21 West Yongji Road, Hebei, Cangzhou Applicant after: Cangzhou Power Supply Co. Applicant after: State Grid Corporation of China Applicant after: Hebei Electric Power Corp. Address before: 061001 No. 21 West Yongji Road, Hebei, Cangzhou Applicant before: Cangzhou Power Supply Co. |
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Owner name: CANGZHOU POWER SUPPLY BRANCH COMPANY, STATE GRID H Free format text: FORMER OWNER: STATE GRID CORPORATION OF CHINA HEBEI ELECTRIC POWER CORPORATION Effective date: 20140619 Owner name: STATE GRID CORPORATION OF CHINA Free format text: FORMER OWNER: CANGZHOU POWER SUPPLY CO., LTD. Effective date: 20140619 |
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Effective date of registration: 20140619 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee after: State Grid Corporation of China Patentee after: STATE GRID HEBEI ELECTRIC POWER COMPANY, CANGZHOU BRANCH Patentee after: STATE GRID HEBEI ELECTRIC POWER Co. Address before: 061001 No. 21 West Yongji Road, Hebei, Cangzhou Patentee before: Cangzhou Power Supply Co. Patentee before: State Grid Corporation of China Patentee before: Hebei Electric Power Corp. |
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| CF01 | Termination of patent right due to non-payment of annual fee |