CN208043973U - Alternating current-direct current mixed running surveys note alarm device in DC circuit system - Google Patents
Alternating current-direct current mixed running surveys note alarm device in DC circuit system Download PDFInfo
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- CN208043973U CN208043973U CN201721820059.0U CN201721820059U CN208043973U CN 208043973 U CN208043973 U CN 208043973U CN 201721820059 U CN201721820059 U CN 201721820059U CN 208043973 U CN208043973 U CN 208043973U
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Abstract
The utility model embodiment discloses alternating current-direct current mixed running in a kind of DC circuit system and surveys note alarm device, including：DC partial voltage sampling module, exchange partial pressure sampling module, processor module；The DC partial voltage sampling module, exchange partial pressure sampling module are connect with processor module, it is respectively used to the positive voltage-to-ground in acquisition straight-flow system and the alternating current voltage component in cathode voltage-to-ground, DC circuit system, and processor module is uploaded to after being converted into digital signal by analog signal.The utility model can alter the extraction display of alternating current-direct current virtual value component in the signature analysis of electric fault, straight-flow system to that can increase exchange newly in the case where not changing former Insulation Inspection Device for Direct-Current System and realize that exchanging the survey for scurrying into direct current remembers alarm function, inform that the circuit that piezoelectric voltage size alters electricity is altered in maintenance personnel's exchange at once once exchange occurs and alters electrification, altering electric fault for straight-flow system exchange provides quickly and effectively solution.
Description
Technical field
The utility model is related to DC circuit detection technique field, alternating current-direct current mixes in especially a kind of DC circuit system
Note alarm device is surveyed in operation.
Background technology
DC system earth fault in electric system be it is a kind of it is easy generation and to the larger failure of electric system harmfulness.
Either either cathode ground connection may all cause false protection or relay fail to plus earth, endanger electric system and normally transport
Row.《People's Republic of China (PRC) power industry standard DL/T856- 2004》Define adjusting for different DC system earth faults
Value, when DC system grounding impedance is less than the resistance value, the system of expression has been in failure operation state, needs timely processing.And
It is Grounding the most serious in straight-flow system that exchange in straight-flow system, which alters electric fault then, when being exchanged in straight-flow system
After altering electric fault, it is most likely that cause the malfunction of protection, harm tool big.
According to newest straight-flow system security regulations, after exchange, which occurs, for straight-flow system alters electric fault, D.C. isolation monitoring dress
Alarm signal need to be sent out in time by setting, and record the time of failure generation.And existing Insulation Inspection Device for Direct-Current System is not right
Exchange alters electric fault and provides effective solution, and causing straight-flow system to occur after electric fault is altered in exchange, maintenance personnel cannot be timely
Processing, endangers the safety of straight-flow system.
Therefore, the prior art needs to improve.
Utility model content
The utility model embodiment technical problem to be solved is：Alternating current-direct current in a kind of DC circuit system is provided
Mixed running surveys note alarm device, including：
DC partial voltage sampling module, exchange partial pressure sampling module, processor module；
The DC partial voltage sampling module is connect with processor module, for by straight-flow system positive voltage-to-ground and
Cathode voltage-to-ground is uploaded to processor module after being converted into digital signal by analog signal；
The exchange partial pressure sampling module is connect with processor module, for extracting the alternating voltage in DC circuit system
Component, and it is uploaded to processor module after converting alternating voltage to digital signal by analog signal；
The processor module is used to set the running parameter of DC partial voltage sampling module, exchange partial pressure sampling module, with
And setting alarming threshold parameter sends out warning information when electricity is altered in exchange is more than setting alarming threshold.
Alternating current-direct current mixed running surveys another of note alarm device in based on the above-mentioned DC circuit system of the utility model
Further include data memory module in embodiment, the data memory module is connect with the processor module, is handled for storage
The running parameter of device module setting, and record alarm history data.
Alternating current-direct current mixed running surveys another of note alarm device in based on the above-mentioned DC circuit system of the utility model
Further include display setup module in embodiment, the display setup module is connect with the processor module, for monitoring
DC voltage, alternating voltage, alarm history value are shown, are set to alarming threshold value, and by processor module
After processing, it is stored in data memory module.
Alternating current-direct current mixed running surveys another of note alarm device in based on the above-mentioned DC circuit system of the utility model
Further include alarm output module in embodiment, the alarm output module is connect with the processor module, for processor
The alarm command that module is sent out is alerted.
Alternating current-direct current mixed running surveys another of note alarm device in based on the above-mentioned DC circuit system of the utility model
Further include communication module in embodiment, the communication module is connect with the processor module, is used for the number of processor module
It is believed that breath is sent to master system.
Alternating current-direct current mixed running surveys another of note alarm device in based on the above-mentioned DC circuit system of the utility model
In embodiment, the processor module is 32 bit processor modules.
Alternating current-direct current mixed running surveys another of note alarm device in based on the above-mentioned DC circuit system of the utility model
In embodiment, the communication module includes RS232 interface or RS485 interfaces.
Alternating current-direct current mixed running surveys another of note alarm device in based on the above-mentioned DC circuit system of the utility model
In embodiment, the alarm output module includes sound alarm unit and light Alarm Unit；
After the alarm output module receives the alarm command that processor module is sent out, the sound of the alarm output module
Sound Alarm Unit sends out alerting tone, and the light Alarm Unit sends out warning light.
Alternating current-direct current mixed running surveys another of note alarm device in based on the above-mentioned DC circuit system of the utility model
In embodiment, the display setup module includes display screen, LED light and push-button unit；
The display screen shows the DC partial voltage sampling module, the circuit parameter of exchange partial pressure sampling module acquisition is believed
Breath, the setting alarming threshold value information of processor module, alarm history information；
The LED light includes power supply indicator and working station indicator；
The push-button unit includes that parameter setting keys and parameter confirm button.
Alternating current-direct current mixed running surveys another of note alarm device in based on the above-mentioned DC circuit system of the utility model
In embodiment, the display screen is 2.8 inches of TFT display screens.
Compared with prior art, the utility model has the following advantages：
The utility model acquires DC circuit system in real time by DC partial voltage sampling module, exchange partial pressure sampling module
Anode over the ground, cathode over the ground, AC compounent signal data, and analysis comparison is carried out to the data of acquisition by processor module,
And alarm is sent out, the present apparatus can alter electric event to that can increase exchange newly in the case where not changing former Insulation Inspection Device for Direct-Current System
The extraction display of alternating current-direct current virtual value component and realize that the survey note of direct current is scurried into exchange in the signature analysis of barrier, straight-flow system
Alarm function informs that maintenance personnel's exchange alters piezoelectric voltage size and alters returning for electricity at once once exchange occurs and alters electrification
Road alters electric fault for straight-flow system exchange and provides quickly and effectively solution.
Below by drawings and examples, the technical solution of the utility model is described in further detail.
Description of the drawings
The attached drawing of a part for constitution instruction describes the embodiments of the present invention, and is used for together with description
Explain the principles of the present invention.
The utility model can be more clearly understood according to following detailed description with reference to attached drawing, wherein：
Fig. 1 surveys one embodiment of note alarm device for alternating current-direct current mixed running in the DC circuit system of the utility model
Structural schematic diagram.
Fig. 2 surveys another implementation of note alarm device for alternating current-direct current mixed running in the DC circuit system of the utility model
The structural schematic diagram of example.
Fig. 3 surveys another implementation of note alarm device for alternating current-direct current mixed running in the DC circuit system of the utility model
The structural schematic diagram of example.
In figure：1 DC partial voltage sampling module, 2 exchange partial pressure sampling modules, 3 processor modules, 4 data memory modules, 5
Show setup module, 51 display screens, 52LED indicator lights, 53 push-button units, 6 alarm output modules, 7 communication modules.
Specific implementation mode
The various exemplary embodiments of the utility model are described in detail now with reference to attached drawing.It should be noted that：Unless another
It illustrates outside, the component and the positioned opposite of step, numerical expression and numerical value otherwise illustrated in these embodiments is unlimited
The scope of the utility model processed.
Simultaneously, it should be appreciated that for ease of description, the size of attached various pieces shown in the drawings is not according to reality
Proportionate relationship draw.
It is illustrative to the description only actually of at least one exemplary embodiment below, is never used as to this practicality
Novel and its application or any restrictions used.
Technology, method and apparatus known to person of ordinary skill in the relevant may be not discussed in detail, but suitable
In the case of, the technology, method and apparatus should be considered as part of specification.
It should be pointed out that each unit module in the utility model is hardware module, although which part module
With information processing capability, according to different design requirements, it may be necessary to coordinate corresponding software to realize, still, these are soft
Part is conventionally known software or well known technology.Involved various control units, collecting unit, encoder in the application
Etc. application-specific integrated circuit may be used and peripheral circuit is achieved, i.e., realized using pure hardware mode, or using existing
Chip is realized with peripheral circuit, is carried out by loading existing software on chip, or according to the software that existing method is realized
Work.
The inventive point of the utility model is modules, unit, the hardware annexation of device and each hardware
The variation etc. of installation site, and form distinctive connection relation and additional space relationship, when using application-specific integrated circuit without
Need to assist software that can also realize, though it is specific use in need corresponding software its if be intended only as the utility model and having
Coordinated with other parts in body application scenarios, coordinated, more preferably to realize the effect of the utility model in the application, with this
The inventive point of utility model is unrelated, meanwhile, if coordinate software using existing chip come work, used software, place
Reason method is existing software and method, and the invention effect and destination that the utility model is realized are realized also not dependent on soft
Part, but goal of the invention, also, the invention effect and purpose that the utility model is realized are realized by the improvement of hardware construction
Realization also not dependent on software, but goal of the invention is realized by the improvement of hardware construction, and the utility model is wanted
The range of protection is asked not to be related to software itself, and the only connection relation of various pieces and relative tertiary location relationship.
It should be noted that：Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it need not be further discussed in subsequent attached drawing in a attached drawing.
Fig. 1 surveys one embodiment of note alarm device for alternating current-direct current mixed running in the DC circuit system of the utility model
Structural schematic diagram, as shown in Figure 1, in the DC circuit system of the embodiment alternating current-direct current mixed running survey note alarm device packet
It includes：
DC partial voltage sampling module 1, exchange partial pressure sampling module 2, processor module 3；
The DC partial voltage sampling module 1 is connect with processor module 3, is used for the positive voltage-to-ground in straight-flow system
And cathode voltage-to-ground is converted into after digital signal by analog signal and is uploaded to processor module 3；DC partial voltage sampling module 1
Can real-time monitoring system Bus Voltage, including working power voltage, positive voltage-to-ground, negative voltage-to-ground；
The exchange partial pressure sampling module 2 is connect with processor module 3, for extracting the alternating current in DC circuit system
Component is pressed, and converts after digital signal alternating voltage to by analog signal and is uploaded to processor module 3；Exchange partial pressure sampling mould
Block 2 can acquire and show that piezoelectric voltage is altered in exchange in real time；
The processor module 3 is used to set the work ginseng of DC partial voltage sampling module 1, exchange partial pressure sampling module 2
Number, and setting alarming threshold parameter send out warning information when electricity is altered in exchange is more than setting alarming threshold；
Further include data memory module 4, the data memory module 4 is connect with the processor module 3, at storage
The running parameter of 3 setting of device module is managed, and records alarm history data；
Further include display setup module 5, the display setup module 5 is connect with the processor module 3, for monitoring
DC voltage, alternating voltage, alarm history value shown, alarming threshold value is set, and by processor die
After the processing of block 3, it is stored in data memory module 4；
Processor module 3 by showing that setup module 5 is arranged various alarming threshold values, including system voltage height get over limit value,
Piezoelectric voltage alarming threshold value is altered in the low more limit value of system voltage, exchange；
Further include alarm output module 6, the alarm output module 6 is connect with the processor module 3, for processing
The alarm command that device module 3 is sent out is alerted；
Further include communication module 7, the communication module 7 is connect with the processor module 3, is used for processor module 3
Data information be sent to master system.
In a specific embodiment, the processor module 3 is 32 bit processor modules, DC partial voltage sampling module
1, exchange partial pressure sampling module 2 includes 16 bit A/D converters of high-precision, and conversion speed is at 1000 times per second or more, and resolution ratio is 1/
50000 or more.
In a specific embodiment, the communication module 7 includes RS232 interface or RS485 interfaces, can be passed through
Real-time Monitoring Data and history alarm record data are uploaded to master system by RS232 interface or RS485 interfaces.
In a specific embodiment, the alarm output module 6 includes sound alarm unit and light Alarm Unit；
After the alarm output module 6 receives the alarm command that processor module is sent out, the alarm output module 6
Sound alarm unit sends out alerting tone, and the light Alarm Unit sends out warning light, in one embodiment of the utility model,
Alarm output module 6 is designed using passive contact outputting alarm, alarm output after exchange occurs in straight-flow system and alters electric fault
Module 6 can send out sound-light alarm, and can pass through passive contact outputting alarm signal.
Fig. 2 surveys another implementation of note alarm device for alternating current-direct current mixed running in the DC circuit system of the utility model
The structural schematic diagram of example, as shown in Fig. 2, the display setup module 5 includes display screen 51, LED light 52 and push-button unit
53；
The display screen 51 shows the circuit parameter that the DC partial voltage sampling module 1, exchange partial pressure sampling module 2 acquire
Information, the setting alarming threshold value information of processor module 3, alarm history information, the display screen are 2.8 inches of TFT
Display screen, resolution ratio are 320 × 240, and the display page info of display screen 51 includes：The system mode page, parameter setting page,
The historical record page；
Under the system mode page, real-time display work input voltage, the anode that DC partial voltage sampling module 1 acquires is over the ground
Voltage, cathode voltage-to-ground, piezoelectric voltage is altered in the exchange that exchange partial pressure sampling module 2 acquires, if work input voltage and exchange
The threshold value that piezoelectric voltage does not exceed in parameter setting is altered in the exchange that partial pressure sampling module 2 acquires, then status display is that " system is just
Often ", it shows " electric voltage exception " if DC voltage height is out-of-limit, alters if piezoelectric voltage is more than setting threshold value and show if exchange
" exchange is abnormal ", " electric voltage exception " and " exchanging abnormal " is alternately aobvious if having DC voltage abnormal and having exchange to alter electric fault
Show；
Under parameter setting page, the voltage height that video-stream processor module 3 is arranged crosses the border the low parameter of crossing the border of parameter value, voltage
Value, alternating voltage cross the border parameter value；
Under historical record interface, the storage of display data memory module 4 when altering electric fault to alter piezoelectric voltage timely
Between, data storage uses dynamic memory pattern, and when detecting that the ac voltage scurried into changes more than 2V, it is dynamic to carry out storage
Make, data storage item number is 1000 in historical record.
The LED light 52 includes power supply indicator and working station indicator, and power supply indicator is for showing equipment
Power supply situation, when equipment is opened and when having power supply power supply, power supply indicator is bright, and otherwise, power supply indicator goes out, and working condition refers to
Show that lamp includes work, normal, three indicator lights of alarm, is respectively used to indicate whether equipment works, whether equipment work is normal, accuses
Alert output module 6 whether outputting alarm；
The push-button unit 53 includes that parameter setting keys and parameter confirm button, parameter setting key include preceding page button and
Page button afterwards, parameter confirm that button includes confirming button and return button；
Under the system mode page, confirms that button can be turned on and off the work of sound alarm unit by long-press, work as length
By return button can entry time setting, by preceding page button can enter parameter setting page, by rear page button can into history note
Record the page；
It under parameter setting page, can modify to parameter by preceding page button or rear page button, page button is joined before short-press
Number plus 1, page button is not put before pinning, and parameter page after 1 second plus 10, short-press subtracts 1 by bond parameter, pins rear page button and does not put,
Parameter subtracted 10 every 1 second, and after the completion of parameter setting, Setting pattern is exited by button is returned；
Under historical record interface, by the page-turning function for confirming that button can realize historical record, returned to by button is returned
Nearest one page historical record page.
Fig. 3 surveys another implementation of note alarm device for alternating current-direct current mixed running in the DC circuit system of the utility model
The structural schematic diagram of example, as shown in figure 3, alternating current-direct current mixed running surveys the interface packet of note alarm device in the DC circuit system
The power interface for system power supply, power interface external direct current power supply are included, power supply voltage range is 48-300V of direct current, alarm is defeated
Go out the alarm output interface of module 6, alarm output interface is connect with alarm output module 6, external voice guard and light report
Alert device, the communication interface of communication module 7, communication interface includes RS232 interface and RS485 interfaces.
Each embodiment is described in a progressive manner in this specification, the highlights of each of the examples are with its
The difference of its embodiment, same or analogous part cross-reference between each embodiment.For system embodiment
For, since it is substantially corresponding with embodiment of the method, so description is fairly simple, referring to the portion of embodiment of the method in place of correlation
It defends oneself bright.
The description of the utility model provides for the sake of example and description, and is not that exhaustively or incite somebody to action this
Utility model is limited to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.
Selection and description embodiment are and to make the common skill of this field to more preferably illustrate the principles of the present invention and practical application
Art personnel are it will be appreciated that various embodiments with various modifications of the utility model to design suitable for special-purpose.
Claims (10)
1. alternating current-direct current mixed running surveys note alarm device in a kind of DC circuit system, which is characterized in that including：
DC partial voltage sampling module, exchange partial pressure sampling module, processor module；
The DC partial voltage sampling module is connect with processor module, is used for the positive voltage-to-ground and cathode in straight-flow system
Voltage-to-ground is uploaded to processor module after being converted into digital signal by analog signal；
The exchange partial pressure sampling module is connect with processor module, for extracting the alternating voltage in DC circuit system point
Amount, and it is uploaded to processor module after converting alternating voltage to digital signal by analog signal；
The processor module is used to set the running parameter of DC partial voltage sampling module, exchange partial pressure sampling module, Yi Jishe
Determine alarming threshold parameter, when electricity is altered in exchange is more than setting alarming threshold, sends out warning information.
2. alternating current-direct current mixed running surveys note alarm device in DC circuit system according to claim 1, which is characterized in that
Further include data memory module, the data memory module is connect with the processor module, is set for storage processor module
The running parameter set, and record alarm history data.
3. alternating current-direct current mixed running surveys note alarm device in DC circuit system according to claim 1, which is characterized in that
Further include display setup module, the display setup module connect with the processor module, be used for the DC voltage to monitoring,
Alternating voltage, alarm history value are shown, are set to alarming threshold value, and after being handled by processor module, are deposited
Storage is in data memory module.
4. alternating current-direct current mixed running surveys note alarm device in DC circuit system according to claim 1, which is characterized in that
Further include alarm output module, the alarm output module is connect with the processor module, for being sent out to processor module
Alarm command alerted.
5. alternating current-direct current mixed running surveys note alarm device in DC circuit system according to claim 1, which is characterized in that
Further include communication module, the communication module is connect with the processor module, for sending out the data information of processor module
It send to master system.
6. alternating current-direct current mixed running surveys note alarm device in DC circuit system according to claim 1, which is characterized in that
The processor module is 32 bit processor modules.
7. alternating current-direct current mixed running surveys note alarm device in DC circuit system according to claim 5, which is characterized in that
The communication module includes RS232 interface or RS485 interfaces.
8. alternating current-direct current mixed running surveys note alarm device in DC circuit system according to claim 4, which is characterized in that
The alarm output module includes sound alarm unit and light Alarm Unit；
After the alarm output module receives the alarm command that processor module is sent out, the sound of the alarm output module is accused
Alert unit sends out alerting tone, and the light Alarm Unit sends out warning light.
9. alternating current-direct current mixed running surveys note alarm device in DC circuit system according to claim 3, which is characterized in that
The display setup module includes display screen, LED light and push-button unit；
The display screen shows the DC partial voltage sampling module, the circuit parameter information of exchange partial pressure sampling module acquisition, place
Manage setting alarming threshold value information, the alarm history information of device module；
The LED light includes power supply indicator and working station indicator；
The push-button unit includes that parameter setting keys and parameter confirm button.
10. alternating current-direct current mixed running surveys note alarm device in DC circuit system according to claim 9, feature exists
In the display screen is 2.8 inches of TFT display screens.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721820059.0U CN208043973U (en) | 2017-12-20 | 2017-12-20 | Alternating current-direct current mixed running surveys note alarm device in DC circuit system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721820059.0U CN208043973U (en) | 2017-12-20 | 2017-12-20 | Alternating current-direct current mixed running surveys note alarm device in DC circuit system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108152707A (en) * | 2017-12-20 | 2018-06-12 | 广州勤正电力科技有限公司 | Alternating current-direct current mixed running surveys note alarm device in DC circuit system |
| CN112748363A (en) * | 2020-12-24 | 2021-05-04 | 安徽鑫龙自动化有限公司 | Alternating current fleeing testing device for direct current system |
-
2017
- 2017-12-20 CN CN201721820059.0U patent/CN208043973U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108152707A (en) * | 2017-12-20 | 2018-06-12 | 广州勤正电力科技有限公司 | Alternating current-direct current mixed running surveys note alarm device in DC circuit system |
| CN112748363A (en) * | 2020-12-24 | 2021-05-04 | 安徽鑫龙自动化有限公司 | Alternating current fleeing testing device for direct current system |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Alternating current and direct current mixed operation detection recording alarm device in direct current circuit system Effective date of registration: 20190412 Granted publication date: 20181102 Pledgee: China Co truction Bank Corp Guangzhou economic and Technological Development Zone sub branch Pledgor: GUANGZHOU QINZHENG POWER TECHNOLOGY CO., LTD. Registration number: 2019440000156 |