CN206208972U - A kind of voltage detecting alarm equipment - Google Patents
A kind of voltage detecting alarm equipment Download PDFInfo
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- CN206208972U CN206208972U CN201621258220.5U CN201621258220U CN206208972U CN 206208972 U CN206208972 U CN 206208972U CN 201621258220 U CN201621258220 U CN 201621258220U CN 206208972 U CN206208972 U CN 206208972U
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Abstract
The utility model provides a kind of voltage detecting alarm equipment, voltage sampling circuit, DC power supplier and the communication module being connected with single-chip microcomputer including single-chip microcomputer and respectively, wherein, voltage sampling circuit gathers the three-phase voltage signal of target AC power, single-chip microcomputer whether there is failure according to the three-phase voltage signal detection target AC power of collection, be sent to user terminal fault message by communication module when there is failure.Therefore, when target AC power breaks down, maintainer can in time recognize the fault message of AC power by user terminal, realize the automation of AC power detection, improve detection efficiency, and reduce cost of labor.
Description
Technical field
The utility model is related to transformer station field, more specifically to a kind of voltage detecting alarm equipment.
Background technology
The 380V AC powers of transformer station are generally by the way of annular electric supply, as shown in figure 1, duplex feeding is used,
Middle setting contact plug-in strip K1.K1 is off under normal circumstances, and AC power 1 is powered to load C and load D, is exchanged
Power supply 2 is powered to load A and load B.When the circuit of AC power 1 is faulty or overhauls, K1 is closed, by AC power 2
Powered to load C and load D；When the circuit of AC power 2 is faulty or overhauls, K1 is closed, by AC power 1 to load
A and load B power.Load can obtain power supply from both direction, improve power supply reliability.
At present, in transformer station using annular electric supply mode 380V AC powers generally use cable connection long, cable because
Power for a long time, aging, insulation reduction etc. may be produced abnormal.These exceptions will cause and AC power respective branches branch
Road abnormal electrical power supply.AC power abnormal electrical power supply situation in present transformer station relies on maintainer, periodically investigation, it is impossible to exception
Situation is processed in time, and cost of labor is higher.
Utility model content
In view of this, the utility model proposes a kind of voltage detecting alarm equipment, it is intended to solve the exchange in present transformer station
Power supply abnormal electrical power supply situation relies on maintenance worker, periodically investigation, it is impossible to abnormal conditions are processed in time, and cost of labor compared with
Problem high.
In order to solve the above problems, it is proposed that scheme it is as follows：
A kind of voltage detecting alarm equipment, including：Single-chip microcomputer, the voltage sampling circuit being connected with the single-chip microcomputer respectively,
DC power supplier and communication module, the DC power supplier are also respectively connected with the voltage sampling circuit and communication module,
Wherein,
The voltage sampling circuit gathers the three-phase voltage signal of target AC power, and the three-phase voltage signal is defeated
Enter the single-chip microcomputer；
The single-chip microcomputer detects that the target AC power whether there is failure, the event according to the three-phase voltage signal
Barrier includes overvoltage/undervoltage failure, three-phase imbalance failure or open-phase fault；
The communication module is connected with user terminal communication, for by the fault message of the target AC power send to
The user terminal.
Preferably, the communication module is：Wireless communication module.
Preferably, the wireless communication module is：3G wireless communication modules or 4G wireless communication modules.
Preferably, the equipment also includes：The display module being connected with the single-chip microcomputer, for showing the three-phase in real time
Voltage signal.
Preferably, the display module is：Touch display.
Preferably, the equipment also includes：The keyboard input module being connected with the single-chip microcomputer.
Preferably, the equipment also includes：The warning device being connected with the single-chip microcomputer, in the target alternating current
Alert during the presence failure in source.
Preferably, the warning device is：Acoustic-optic alarm.
Preferably, the equipment also includes：The protection module being connected with the single-chip microcomputer, in the target alternating current
When source has failure, the power supply circuit between the target AC power and alternating current electrical equipment is cut off.
Preferably, the single-chip microcomputer is：PIC12F675 single-chip microcomputers
Compared with prior art, the technical solution of the utility model has advantages below：
Above-mentioned technical proposal provide a kind of voltage detecting alarm equipment, including single-chip microcomputer and respectively with single-chip microcomputer connect
Voltage sampling circuit, DC power supplier and the communication module for connecing, wherein, the three of voltage sampling circuit collection target AC power
Phase voltage signal, single-chip microcomputer whether there is failure according to the three-phase voltage signal detection target AC power of collection, there is failure
When fault message is sent to user terminal by communication module.Therefore, when AC power breaks down, maintainer can be with
Recognize the fault message of AC power in time by user terminal, realize the automation of AC power detection, improve inspection
Efficiency is surveyed, and reduces cost of labor.
Brief description of the drawings
In order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or the accompanying drawing to be used needed for description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic diagram of the power supply mode that transformer station 380V AC powers are generally used；
A kind of structural representation of voltage detecting alarm equipment that Fig. 2 is provided for the utility model embodiment；
The structural representation of another voltage detecting alarm equipment that Fig. 3 is provided for the utility model embodiment；
The structural representation of the DC power supplier of the voltage detecting alarm equipment that Fig. 4 is provided for the utility model embodiment
Figure.
Specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment for being obtained, belongs to the scope of the utility model protection.
The utility model provides a kind of voltage detecting alarm equipment, and shown in Figure 2, the device includes：Single-chip microcomputer 1, with
And voltage sampling circuit 2, DC power supplier 3 and the communication module 4 being connected with the single-chip microcomputer 1 respectively, the dc source
Module 3 is also respectively connected with the voltage sampling circuit 2 and communication module 4, wherein,
DC power supplier 3 is used to provide corresponding direct current for single-chip microcomputer 1, voltage sampling circuit 2 and communication module 4
Pressure.
The voltage sampling circuit 2 gathers the three-phase voltage signal of target AC power, and by the three-phase voltage signal
It is input into the single-chip microcomputer 1；
The single-chip microcomputer 1 detects that the target AC power whether there is failure according to the three-phase voltage signal, described
Failure includes overvoltage/undervoltage failure, three-phase imbalance failure or open-phase fault；
The communication module 4 is connected with user terminal communication, for the fault message of the target AC power to be sent
To the user terminal.User terminal can be smart mobile phone, panel computer, notebook computer or desktop computer etc..
The voltage detecting alarm equipment that the utility model is provided, the fault message of the target AC power that will be detected sends
To user terminal, therefore, when AC power breaks down, maintainer can in time recognize alternating current by user terminal
The fault message in source, realizes the automation of AC power detection, improves detection efficiency, and reduce cost of labor.
Another voltage alarm equipment is present embodiments provided, shown in Figure 3, the device includes：Single-chip microcomputer 1 and
The voltage sampling circuit 2 that is connected with the single-chip microcomputer 1 respectively, DC power supplier 3, communication module 4, display module 5, button are defeated
Enter module 6, warning device 7 and protection module 8, wherein,
Single-chip microcomputer 1 can use PIC12F675 single-chip microcomputers.
The DC power supplier 3 is also respectively connected with the voltage sampling circuit 2, communication module 4, display module 5, button
Input module 6, warning device 7 and protection module 8, for providing corresponding DC voltage.It is shown in Figure 4, dc source mould
Block 3 includes capacitance-resistance voltage reduction circuit 31 and three-phase bridge rectification circuit 32, and capacitance-resistance voltage reduction circuit 31 is depressured to AC power, three
Alternating voltage after step-down is converted to DC voltage by phase full bridge rectifier 32.
Communication module 4 be wireless communication module, specifically can be 3G wireless communication modules or 4G wireless communication modules, just
In by the transmitting fault information of target AC power to user terminal.
Display module 5 is used for the three-phase voltage signal of real-time display target AC power.There is event in target AC power
During barrier, corresponding fault type can also be shown, fault type includes overvoltage/undervoltage failure, three-phase imbalance failure, open-phase fault
With misphase failure etc..Specific display module can use touch display.
Keyboard input module 6, maintainer can be input into control signal, control by keyboard input module 6 to single-chip microcomputer 1
Signal includes action delay parameter or overvoltage/undervoltage threshold value.
Warning device 7 is used for the alert in the presence failure of the target AC power.Specific alarm dress
Acoustic-optic alarm is set to, when detecting target AC power and there is failure, sound, light warning information is sent.
Protection module 8, for when the target AC power has failure, cutting off the target AC power and exchanging
Power supply circuit between electric electrical equipment.
Overvoltage/undervoltage failure, overvoltage detection according to in three-phase voltage ceiling voltage be more than overvoltage threshold, under-voltage detection foundation
For minimum voltage is less than brownout threshold in three-phase voltage.After it there is overvoltage/undervoltage failure, " mistake/under-voltage " is indicated in warning device 7
Lamp flashes, while the display overvoltage/undervoltage warning information of display module 5.Through after the action delay time for setting, protection module 8 is cut
Disconnected power supply circuit between target AC power and alternating current electrical equipment." mistake/under-voltage " indicator lamp is normal after protection module 8 is acted
It is bright.Overvoltage threshold and brownout threshold can be adjusted simultaneously, i.e., overvoltage threshold is equal with brownout threshold, can adjust rated voltage Ue
Percentage, arbitrarily adjusted in the range of 5%~20%, for example select 5%, then overvoltage threshold be Ue+ 5%*Ue, and under-voltage threshold
It is U to be worthe- 5%*Ue.Overvoltage/undervoltage action time delay can arbitrarily be adjusted from 0.1S~10S, and regulative mode is adjusted for embedded knob
Section.
Whether three-phase imbalance failure, three-phase imbalance detection exceedes uneven threshold value according to for degree of unbalancedness, uneven
Degree computational methods：
Such as uneven threshold value is set to 10%, then when non-equilibrium among three phase voltages are more than 10%, in warning device 7
" imbalance " indicator lamp flashes；And if three-phase imbalance trouble duration was more than 5 seconds cut-out target alternating currents of protection module 8
Power supply circuit between source and alternating current electrical equipment." imbalance " indicator lamp Chang Liang after the action of protection module 8.
Whether open-phase fault, pile defection exceedes phase shortage threshold value according to for degree of unbalancedness, and the setting of phase shortage threshold value is generally compared
Uneven threshold value is big.For example, phase shortage threshold value is 50%, then when non-equilibrium among three phase voltages are more than 50%.In warning device 7
The flicker of " phase shortage " indicator lamp, and if the open-phase fault duration more than 5 seconds protection modules 8 cut-out target AC powers with hand over
Power supply circuit between the electric electrical equipment of stream." phase shortage " indicator lamp Chang Liang after the action of protection module 8.
Herein, term " including ", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, from
And a series of equipment for including key elements is not only included those key elements, but also other key elements including being not expressly set out,
Or also include the key element intrinsic for this equipment.In the absence of more restrictions, by sentence " including
It is individual ... " limit key element, it is not excluded that also there is other identical element in the equipment including the key element.
Each embodiment is described by the way of progressive in this specification, and what each embodiment was stressed is and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.
To the described above of utility model the disclosed embodiments, professional and technical personnel in the field are enable to realize or use
The utility model.Various modifications to these embodiments will be apparent for those skilled in the art, this
General Principle defined in text can be in the case where spirit or scope of the present utility model not be departed from, in other embodiments
Realize.Therefore, the utility model is not intended to be limited to the embodiments shown herein, and be to fit to it is disclosed herein
Principle and the consistent scope most wide of features of novelty.
Claims (10)
1. a kind of voltage detecting alarm equipment, it is characterised in that including：Single-chip microcomputer, the voltage being connected with the single-chip microcomputer respectively
Sample circuit, DC power supplier and communication module, the DC power supplier be also respectively connected with the voltage sampling circuit and
Communication module, wherein,
The voltage sampling circuit gathers the three-phase voltage signal of target AC power, and the three-phase voltage signal is input into institute
State single-chip microcomputer；
The single-chip microcomputer detects that the target AC power whether there is failure, the failure bag according to the three-phase voltage signal
Include overvoltage/undervoltage failure, three-phase imbalance failure or open-phase fault；
The communication module is connected with user terminal communication, for the fault message of the target AC power to be sent to described
User terminal.
2. equipment according to claim 1, it is characterised in that the communication module is：Wireless communication module.
3. equipment according to claim 2, it is characterised in that the wireless communication module is：3G wireless communication modules or
4G wireless communication modules.
4. equipment according to claim 1, it is characterised in that the equipment also includes：What is be connected with the single-chip microcomputer is aobvious
Show module, for showing the three-phase voltage signal in real time.
5. equipment according to claim 4, it is characterised in that the display module is：Touch display.
6. equipment according to claim 1, it is characterised in that the equipment also includes：With pressing that the single-chip microcomputer is connected
Key input module.
7. equipment according to claim 1, it is characterised in that the equipment also includes：The report being connected with the single-chip microcomputer
Alarm device, alert during for presence failure in the target AC power.
8. equipment according to claim 7, it is characterised in that the warning device is：Acoustic-optic alarm.
9. equipment according to claim 1, it is characterised in that the equipment also includes：The guarantor being connected with the single-chip microcomputer
Shield module, for when the target AC power has failure, cutting off the target AC power and alternating current electrical equipment
Between power supply circuit.
10. equipment according to claim 1, it is characterised in that the single-chip microcomputer is：PIC12F675 single-chip microcomputers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621258220.5U CN206208972U (en) | 2016-11-23 | 2016-11-23 | A kind of voltage detecting alarm equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621258220.5U CN206208972U (en) | 2016-11-23 | 2016-11-23 | A kind of voltage detecting alarm equipment |
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| Publication Number | Publication Date |
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| CN206208972U true CN206208972U (en) | 2017-05-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621258220.5U Active CN206208972U (en) | 2016-11-23 | 2016-11-23 | A kind of voltage detecting alarm equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112462156A (en) * | 2020-12-16 | 2021-03-09 | 广东电网有限责任公司 | Three-phase open-phase early warning method, device, system, equipment and storage medium |
-
2016
- 2016-11-23 CN CN201621258220.5U patent/CN206208972U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112462156A (en) * | 2020-12-16 | 2021-03-09 | 广东电网有限责任公司 | Three-phase open-phase early warning method, device, system, equipment and storage medium |
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