CN202563614U - Automatic alarm for electrical loss of distribution transformer - Google Patents
Automatic alarm for electrical loss of distribution transformer Download PDFInfo
- Publication number
- CN202563614U CN202563614U CN2012201897699U CN201220189769U CN202563614U CN 202563614 U CN202563614 U CN 202563614U CN 2012201897699 U CN2012201897699 U CN 2012201897699U CN 201220189769 U CN201220189769 U CN 201220189769U CN 202563614 U CN202563614 U CN 202563614U
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- electric capacity
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- transformer
- oscillator
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- 239000003990 capacitor Substances 0.000 claims abstract description 13
- 230000005611 electricity Effects 0.000 claims description 23
- 238000001914 filtration Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 230000005693 optoelectronics Effects 0.000 abstract 1
- 239000000853 adhesive Substances 0.000 description 2
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- 230000015572 biosynthetic process Effects 0.000 description 2
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- 238000012271 agricultural production Methods 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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Abstract
Disclosed is an automatic alarm for the electrical loss of a distribution transformer, comprising a step-down transformer, a bridge type rectifier, an oscillator, a handset, and two relays, wherein the input terminal of the step-down transformer is connected to the output terminal of the distribution transformer; the output voltage of the step-down transformer provides power for the control coil of the first relay after being rectified by the bridge type rectifier and filtered by a first capacitor and then charges a second capacitor via a first diode; the voltage of the second capacitor is added to the control coil of the second relay and charges a third capacitor via a second diode; the voltage of a third capacitor charges the oscillator sequentially via the normally-closed contact of the first relay and the normally open contact of the second relay; and the output terminal of the oscillator is connected to a replay button of the handset via an optoelectronic coupler. The automatic alarm of the utility model features simple structure, broad signal-covering area, and strong disturbance-resisting capability, with the receiving spot being unlimited. The automatic alarm of the utility model can ensure timely transmission of the alarm signal and raise the power supply reliability.
Description
Technical field
The utility model relates to a kind ofly can belong to the alarm technique field at substation transformer because of breaking down or during stolen the outage, sending the device of alerting signal automatically.
Background technology
Substation transformer is the visual plant in the supply network, and the 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 the dead electricity warning device, in case transformer is stopped power supply because of stolen or fault, the dead electricity warning device will send alerting signal; So that the staff can in time take corresponding measure, 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: at first; The signal transmission distance of existing dead electricity warning device can not surpass 10 kilometers, and antijamming capability is relatively poor, wrong report often occurs and fails to report phenomenon; Be difficult to guarantee the timely transmission of alerting signal, cause long-time power failure easily; Secondly, use specialized equipment to receive alerting signal, the 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 satisfy request for utilization, is necessary to improve.
The utility model content
The purpose of the utility model be to overcome prior art deficiency, a kind of substation transformer dead electricity autoalarm of simple in structure, with low cost, easy to use, reliable operation is provided.
The said problem of the utility model realizes with following technical proposals:
A kind of substation transformer dead electricity autoalarm; Comprise step-down transformer, bridge rectifier, oscillator, mobile phone, two relays, two diodes and three electric capacity in the formation; The output terminal of the input termination substation transformer of said step-down transformer; Its output voltage is that the control coil power supply and warp first diode of first relay is the charging of second electric capacity behind the bridge rectifier rectification and first capacitor filtering; The voltage of second electric capacity is added on the control coil of second relay and through second diode and gives the charging of the 3rd electric capacity; The voltage of the 3rd electric capacity is supplied power to oscillator through normally closed contact and the normally opened contact of second relay of first relay of series connection successively, and 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 said oscillator adopts NE555; 4 pin of base chip and normally opened contact that 8 pin connect second relay and successively through first resistance, second resistance and the 4th capacity earth during said NE555; 7 pin that are connected in series some base chip when meeting NE555 of first resistance and second resistance; 2 pin and 6 pin that are connected in series some base chip when meeting NE555 of 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 NE555,5 pin of base chip are through the 6th capacity earth during NE555; The pulse signal of the 3 pin output of base chip drives the light emitting diode of photoelectrical coupler during NE555.
Above-mentioned substation transformer dead electricity autoalarm; Also comprise cell phone charging circuit in the formation; Said cell phone charging circuit comprises three terminal regulator; The output terminal of the input termination bridge rectifier of said three terminal regulator, output terminal are given cell-phone charging 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 utility model utilizes two relays when the substation transformer dead electricity, to connect the feed circuit of oscillator automatically, triggers mobile phone by oscillator and reports to the police to the staff.Compare with traditional warning device; This device is not only simple in structure, and has advantages such as signal cover is wide, the reception place does not receive any restriction, antijamming capability is strong, can guarantee that alerting signal in time transmits; Shorten power off time to greatest extent, improve the reliability of power supply.
Description of drawings
Below in conjunction with accompanying drawing the utility model is done further to detail.
Fig. 1 is the electrical schematic diagram of the utility model.
Each label is among the figure: T, transformer; FU, fuse; ZQ, bridge rectifier; Base chip when U1, NE555; U2, photoelectrical coupler; U3, three terminal regulator; U4, mobile phone; J1, first relay; J2, second relay; The normally closed contact of J1-1, first relay; The normally opened contact of J2-1, second relay; R1～R3, resistance; D1～D3, diode; C1～C7, electric capacity.
Embodiment
Referring to Fig. 1; This device is drawn the 220V alternating current by the air switch of substation transformer panel box; The 220V alternating current gets into transformer T through 0.5A fuse F U, after transformer T step-down, becomes the 12V alternating voltage, becomes the 12V DC voltage through bridge rectifier ZQ again.The 12V DC voltage is given relay J 1, J2, capacitor C 2, C3 power supply simultaneously after capacitor C 1 filtering, J1, the adhesive simultaneously of J2 relay (this moment, J2-1 was closed, but J1-1 breaks off, and the power supply of U1 is cut off), and circuit gets into normal operating conditions.
Stolen or break down tripping operation during dead electricity when substation transformer; The outage of 220V alternating current; Relay J 1 dead electricity discharges, and its normally closed contact J1-1 is closed, and 2 of relay J continue adhesive owing to C2 has been recharged; So the voltage on the capacitor C 3 is added on the oscillator that is made up of U1 through J1-1, J2-1; Make the circuit starting of oscillation, the pulse dialing voltage of the 3 pin output of U1 triggers the replay key (before the installation of this device, must dial primary power distribution transformer responsible official's cell-phone number with mobile phone U4) of mobile phone U4 through photoelectrical coupler U2.The 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 broke off after 3 seconds greatly, the oscillatory circuit outage quits work.
Facts have proved that this alarm equipment alarm can prevent effectively that transformer is stolen, has improved power supply reliability and service level greatly at the right time.As about August 12 2:00 AM clock, Ma Yingbei well transformer is called suddenly, and the transformer responsible official organizes near the operator on duty reaches the spot after more than 30 minute, and the theft personnel escape, though the theft personnel are not arrested, transformer is not stolen.Again 2:00 AM has a power failure because of strong wind, certain transformer, after the responsible official receives the report for police service immediately establishment officer rush to repair, if there is not the automatic warning of mobile phone possibly wait until that daybreak just someone will make a phone call to report for repairment.After the transformer fault that has had a power failure, the user thought that power department at the maintenance circuit, so also do not inform power department, causes power off time longer.After using this alarm, when section no matter in office, in case substation transformer failover tripping operation dead electricity, responsible official establishment officer immediately rushes to repair, thereby has improved power supply reliability.
The parameter of each parts or model are among Fig. 1:
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 (4)
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 said step-down transformer (T); Its output voltage is that the control coil power supply and warp first diode (D1) of first relay (J1) is second electric capacity (C2) charging after bridge rectifier (ZQ) rectification and first electric capacity (C1) filtering; The voltage of second electric capacity (C2) is added on the control coil of second relay (J2) and through second diode (D2) and gives the 3rd electric capacity (C3) charging; The voltage of the 3rd electric capacity (C3) is supplied power to oscillator through the normally opened contact (J2-1) of normally closed contact (J1-1) and second relay of first relay of series connection successively, and the output terminal of oscillator is through the replay key of photoelectrical coupler (U2) catcher machine (U4).
2. substation transformer dead electricity autoalarm according to claim 1; It is characterized in that; Base chip (U1) when said oscillator adopts NE555; The normally opened contact (J2-1) that 4 pin of base chip (U1) and 8 pin connect second relay during NE555 is also successively through first resistance (R1), second resistance (R2) and the 4th electric capacity (C4) ground connection; 7 pin that are connected in series some base chip (U1) when meeting NE555 of first resistance (R1) and second resistance (R2); 2 pin and 6 pin that are connected in series some base chip (U1) when meeting NE555 of second resistance (R2) and the 4th electric capacity (C4), 4 pin of the 5th electric capacity (C5) base chip (U1) when being NE555 and the filter capacitor of 8 pin, 5 pin of base chip (U1) are through the 6th electric capacity (C6) ground connection during NE555; The pulse signal of 3 pin of base chip (U1) output drives the light emitting diode of photoelectrical coupler (U2) during NE555.
3. substation transformer dead electricity autoalarm according to claim 1 and 2; It is characterized in that; It also comprises cell phone charging circuit, and said cell phone charging circuit adopts three terminal regulator (U3), the output terminal of the input termination bridge rectifier (ZQ) of said three terminal regulator (U3); The output terminal of three terminal regulator (U3) is given cell-phone charging 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.
4. substation transformer dead electricity autoalarm according to claim 3 is characterized in that, in the input circuit of step-down transformer (T), is provided with fuse (FU).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201897699U CN202563614U (en) | 2012-04-29 | 2012-04-29 | Automatic alarm for electrical loss of distribution transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201897699U CN202563614U (en) | 2012-04-29 | 2012-04-29 | Automatic alarm for electrical loss of distribution transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202563614U true CN202563614U (en) | 2012-11-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201897699U Expired - Lifetime CN202563614U (en) | 2012-04-29 | 2012-04-29 | Automatic alarm for electrical loss of distribution transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202563614U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102651157A (en) * | 2012-04-29 | 2012-08-29 | 沧州供电公司 | Automatic alarm device for electric power shutdown of power distribution transformer |
| CN108594073A (en) * | 2018-04-27 | 2018-09-28 | 国家电网公司 | Autoalarm based on mobile phone after dead electricity |
-
2012
- 2012-04-29 CN CN2012201897699U patent/CN202563614U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102651157A (en) * | 2012-04-29 | 2012-08-29 | 沧州供电公司 | Automatic alarm device for electric power shutdown of power distribution transformer |
| 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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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20121128 Effective date of abandoning: 20140219 |
|
| RGAV | Abandon patent right to avoid regrant |