CN207234393U - Autonomous test overvoltage type monitoring device - Google Patents
Autonomous test overvoltage type monitoring device Download PDFInfo
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- CN207234393U CN207234393U CN201720990769.1U CN201720990769U CN207234393U CN 207234393 U CN207234393 U CN 207234393U CN 201720990769 U CN201720990769 U CN 201720990769U CN 207234393 U CN207234393 U CN 207234393U
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- overvoltage
- module
- controller
- monitoring device
- voltage
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Abstract
The utility model discloses a kind of Autonomous test overvoltage type monitoring device, the Autonomous test overvoltage type monitoring device includes cabinet, overvoltage su re or and controller, the overvoltage su re or is arranged in the cabinet, the overvoltage su re or is connected with the controller, the overvoltage su re or is used for the overvoltage phenomenon in suppression circuit system, and the controller is used to monitor voltage condition in the overvoltage su re or；The utility model effectively suppresses the ferromagnetic resonance of the voltage transformer, the damage of the voltage transformer and the second fuse caused by avoiding ferromagnetic resonance by the controller control intelligent switch.
Description
Technical field
It the utility model is related to power generation or field of power distribution, and in particular to a kind of Autonomous test overvoltage type monitoring device.
Background technology
Overvoltage refers to that alternating voltage root-mean-square value raises under power frequency, the 10% of overrate, and the duration is big
In the long-time variation in voltage phenomenon of 1 minute；The appearance of overvoltage is typically load switching as a result, for example：Cut off a certain big
Volume load or to capacitor group energization.
The abnormal voltage more than operating voltage that electric system occurs under given conditions raises, and belongs in electric system
A kind of electromagnetic distu phenomenon.In China, 3-35kV systems tackle a variety of overvoltage phenomenons using overvoltage suppression cabinet more, such as
The resonance mistake that switching overvoltage, capacity cell and the nonlinear inductance produced during breaker actuation produces under certain condition
Arc overvoltage etc. caused by atmospheric over-voltage caused by voltage, lightning stroke and single-phase earthing.Existing overvoltage suppression cabinet
It can realize secondary harmonic elimination mostly in harmonic elimination function, but the resonance especially PT occurred in itself for overvoltage suppression cabinet is humorous
Shake, can not thoroughly filter out resonance.
In view of drawbacks described above, the utility model creator obtains this practicality newly finally by prolonged research and practice
Type.
Utility model content
To solve above-mentioned technological deficiency, the technical solution adopted in the utility model is, there is provided a kind of new mistake of Autonomous test
Monitoring device is pressed, the Autonomous test overvoltage type monitoring device includes cabinet, overvoltage su re or and controller, the over-voltage suppression
Device is arranged in the cabinet, and the overvoltage su re or is connected with the controller, and the overvoltage su re or is used for suppression circuit
Overvoltage phenomenon in system, the controller are used to monitor voltage condition in the overvoltage su re or.
Preferably, the overvoltage su re or includes high voltage isolator, mutual induction of voltage device, overvoltage protection, disappears
Humorous device, intelligent switch, described high voltage isolator one end connect busbar, the other end connect respectively the mutual induction of voltage device,
The overvoltage protection, the mutual induction of voltage device lower end connect the harmonic elimination apparatus and the intelligent switch respectively, and
The lower end of the overvoltage protection, the intelligent switch and the harmonic elimination apparatus is grounded.
Preferably, the overvoltage su re or further includes the first device for fusing and the second device for fusing, the first fusing dress
Put and be arranged between the overvoltage protection and the high voltage isolator, second device for fusing is arranged on the electricity
Press between mutual-inductance apparatus and the high voltage isolator.
Preferably, the controller includes processing module, acquisition module, input module, power module, display module, report
Alert module and communication module, the acquisition module, the input module, the display module, the alarm module, the communication
Module and the processing module data connection；The power module is connected with the processing module, is supplied for the controller
Electricity；The intelligent switch is connected with the processing module, and the processing module controls the opening closure of the intelligent switch.
Preferably, the controller further includes selecting switch, the selecting switch is arranged on the overvoltage su re or, institute
State the connection that controller controls the overvoltage su re or by the selecting switch.
Preferably, the cabinet includes some interlayer boards, the overvoltage su re or is arranged on the interlayer board, the mistake
Pressure suppressor further includes warning light, and the warning light is arranged in the overvoltage su re or circuit.
Preferably, the cabinet further includes attachment device, the interlayer board is connected by the attachment device and the cabinet
Connect.
Preferably, the attachment device includes the fixed frame being arranged in the cabinet and is connected with the fixed frame
Sliding bar, the sliding bar can be free to slide on the fixed frame；Mounting hole, the interlayer board are set on the sliding bar
Upper setting fixed part, the fixed part and the mounting hole are equipped with.
The beneficial effects of the utility model are compared with the prior art：1, control the intelligence to open by the controller
Close and effectively suppress the ferromagnetic resonance of the voltage transformer, the voltage transformer caused by avoiding ferromagnetic resonance and described the
The damage of two fuses；2, realize that voltage described in remote control suppresses the parameter of cabinet by the communication module of the controller
Set, avoid contacting with the direct of Autonomous test overvoltage type monitoring device described in work；3, realized by the selecting switch
The overvoltage su re or is switched fast, avoid the overvoltage su re or after breaking down the Autonomous test overvoltage type monitoring set
Standby situation about can not work normally.
Brief description of the drawings
Fig. 1 is the circuit diagram of the utility model Autonomous test overvoltage type monitoring device embodiment one；
Fig. 2 is the circuit diagram of the utility model Autonomous test overvoltage type monitoring device embodiment two；
Fig. 3 is the structure chart of the utility model Autonomous test overvoltage type monitoring device embodiment two.
Digital representation in figure：
1- overvoltage su re ors；2- controllers；3- cabinets；11- high voltage isolators；12- mutual induction of voltage devices；13- is excessively electric
Press protective device；The first device for fusing of 14-；The second device for fusing of 15-；16- harmonic elimination apparatus；17- intelligent switch；18- warning lights；
21- processing modules；22- acquisition modules；23- input modules；24- power modules；25- display modules；26- alarm modules；27-
Communication module；28- selecting switch；31- interlayer boards.
Embodiment
Below in conjunction with attached drawing, and other technical characteristic above-mentioned to the utility model and advantage are described in more detail.
Embodiment one
Shown in Figure 1, Fig. 1 is the circuit diagram of the utility model Autonomous test overvoltage type monitoring device, described
Autonomous test overvoltage type monitoring device includes cabinet 3, overvoltage su re or 1 and controller 2, the controller 2, the over-voltage suppression
Device 1 is arranged in the cabinet, and the overvoltage su re or 1 is connected with the controller 2, and the overvoltage su re or 1 is used to suppress
Overvoltage phenomenon in circuit system, the controller 2 are used to monitor voltage condition in the overvoltage su re or 1.
The overvoltage su re or 1 includes high voltage isolator 11, mutual induction of voltage device 12, overvoltage protection 13, disappears
Humorous device 16, intelligent switch 17, described 11 one end of high voltage isolator connect busbar, and the other end connects the mutual induction of voltage respectively
Device 12, overvoltage protection 13, first is set between the overvoltage protection 13 and the high voltage isolator 11
Device for fusing 14, the second device for fusing 15 is set between the mutual induction of voltage device 12 and the high voltage isolator 11；It is described
12 lower end of mutual induction of voltage device connects the harmonic elimination apparatus 16 and the intelligent switch 17, and the overvoltage protection respectively
13rd, the lower end of the intelligent switch 17 and the harmonic elimination apparatus 16 is grounded；The overvoltage protection 13 is preferably arranged to
Overvoltage peak absorbing device.When overvoltage occurs for electric system, the overvoltage protection 13 instantaneously suppresses overvoltage point
Peak, and caused big energy during Hyper-Voltage of Power Systems is absorbed, Hyper-Voltage of Power Systems protection blind area is eliminated, at the same it is described
12 high-pressure side neutral point of voltage transformer is grounded by the harmonic elimination apparatus 16, is limited electric system and is grounded or arc light in a phase
The overcurrent of 12 high-voltage winding of voltage transformer is flowed through during ground connection, so as to reduce Electromagnetic PT in the voltage transformer 12
Nonlinear resonance caused by core sataration (ferromagnetic resonance), avoids the damage of the voltage transformer 12 and the second fuse 15
It is bad.The intelligent switch 17 is preferably arranged to instant shut-in, and when the ferromagnetic resonance occurs, 17 moment of intelligent switch closure, makes
The voltage transformer 12 is directly grounded, and realizes the effect for quickly eliminating the ferromagnetic resonance, it is mutual effectively to suppress the voltage
The ferromagnetic resonance of sensor 12.
The controller 2 includes processing module 21, acquisition module 22, input module 23, power module 24, display module
25th, alarm module 26 and communication module 27.The acquisition module 22, the input module 23, the display module 25, the report
Alert module 26, the communication module 27 and 21 data connection of processing module；The power module 24 and the processing module
21 connections, are powered for the controller 2；The intelligent switch 17 is connected with the processing module 21, the processing module
The opening closure of the 21 control intelligent switch 17.
The acquisition module 22 is used to gather the voltage signals such as three-phase voltage in the overvoltage su re or 1, opening voltage,
And the voltage signal is uploaded to the processing module 21, the processing module 21 handles the voltage signal, and
Data after processing are uploaded to the display module 25 to be shown.It is described when abnormal conditions occurs in the voltage signal
Processing module 21 controls the alarm module 26 to carry out abnormal alarm.The input module 23 is used for user to the processing mould
The edit operation of block 21, the edit operation include setting switching magnitude and abnormal voltage threshold value, realize the processing module
Between the real-time measurement values that the abnormal voltage threshold value and the acquisition module 22 that 21 pairs of input modules 23 are edited gather from
It is dynamic to compare, so as to be judged to make early warning and subsequent treatment.The communication module 27 at the same time with the display module 25 and
The input module 23 is connected, and the communication module 27 wirelessly transmits out the data that the display module 25 is shown
Go, while user can also be remotely carried out to the input module 23 using wireless device by the communication module 27
Operation, realizes the remotely edit operation to the controller 2.
The processing module 21 based on UAO, the UBO in the voltage transformer 12 gathered to the acquisition module 22,
The analysis of UCO, U △ voltage signals；When being broken down according to circuit system, the neutral-point ground insulation of the overvoltage su re or 1
The residual voltage that occurs of electric power system, the residual voltage starts to calculate by the processing module 21 as enabling signal, so
Logic analysis calculating is carried out further according to situation when breaking down per phase voltage afterwards, judges the separate and ground connection that earth fault occurs
Attribute, respective handling is made further according to judgement result.
Embodiment two
As shown in Figures 2 and 3, embodiment two is further improved on the basis of embodiment one, and specific part is
The Autonomous test overvoltage type monitoring device includes some overvoltage su re ors 1, and the controller 2 further includes selecting switch
28, the cabinet 3 includes some interlayer boards 31, and the overvoltage su re or 1 is arranged on the interlayer board 31, the over-voltage suppression
Device 1 further includes warning light 18, and the warning light 18 is arranged in 1 circuit of overvoltage su re or.
The processing module 21 controls the selecting switch 28, and the selecting switch controls the overvoltage su re or 1 and mother
The connection status of line, controls the selecting switch 28 by the processing module 21, realizes the selection to the overvoltage su re or 1
Property connection, when the processing module detect be connected with busbar the overvoltage su re or 1 failure when, it can be switched fast
His overvoltage su re or 1, realizes the continuous firing of the Autonomous test overvoltage type monitoring device.It is arranged on the overvoltage at the same time
The warning light 18 in suppressor 1, can show whether the overvoltage su re or 1 is powered, easy to tell the over-voltage suppression
The working condition of device 1, the convenient repair and replacement to the overvoltage su re or 1.
The cabinet 3 further includes attachment device, and the interlayer board 31 is connected by the attachment device with the cabinet, institute
Stating attachment device includes the fixed frame being arranged in the cabinet 3 and the sliding bar being connected with the fixed frame, the cunning
Lever can be free to slide on the fixed frame；Mounting hole is set on the sliding bar, fixed part is set on the interlayer board 31,
The fixed part and the mounting hole are equipped with.The interlayer board 31 and the sliding bar pass through the fixed part and described solid
Determine hole and coordinate the fixation and dismounting for realizing the interlayer board 31 and the sliding bar；Pass through the fixed frame and the sliding bar
It is opposite to slide, free entry and exit of the interlayer board in the cabinet 3 is realized, consequently facilitating being arranged on the institute on the interlayer board
Freely replacing for overvoltage su re or 1 is stated, facilitates the maintenance of the Autonomous test overvoltage type monitoring device.
The above is only the preferred embodiment of the present invention, is merely illustrative for the utility model, and
It is nonrestrictive.Those skilled in the art understanding, can be to it in the spirit and scope that the utility model claims are limited
Many changes are carried out, are changed, in addition it is equivalent, but fall within the scope of protection of the utility model.
Claims (7)
1. a kind of Autonomous test overvoltage type monitoring device, it is characterised in that described including cabinet, overvoltage su re or and controller
Overvoltage su re or is arranged in the cabinet, and the overvoltage su re or is connected with the controller, and the overvoltage su re or is used for
Overvoltage phenomenon in suppression circuit system, the controller are used to monitor voltage condition in the overvoltage su re or；The mistake
Suppressor is pressed to include high voltage isolator, mutual induction of voltage device, overvoltage protection, harmonic elimination apparatus, intelligent switch, the height
Disconnecting switch one end connection busbar is pressed, the other end connects the mutual induction of voltage device, the overvoltage protection respectively, described
Mutual induction of voltage device lower end connects the harmonic elimination apparatus and the intelligent switch respectively, and the overvoltage protection, described
The lower end of intelligent switch and the harmonic elimination apparatus is grounded.
2. Autonomous test overvoltage type monitoring device as claimed in claim 1, it is characterised in that the overvoltage su re or further includes
First device for fusing and the second device for fusing, first device for fusing are arranged on the overvoltage protection and the high pressure
Between disconnecting switch, second device for fusing is arranged between the mutual induction of voltage device and the high voltage isolator.
3. Autonomous test overvoltage type monitoring device as claimed in claim 1, it is characterised in that the controller includes processing mould
Block, acquisition module, input module, power module, display module, alarm module and communication module, it is the acquisition module, described defeated
Enter module, the display module, the alarm module, the communication module and the processing module data connection；The power supply
Module is connected with the processing module, is powered for the controller；The intelligent switch is connected with the processing module, institute
State the opening closure that processing module controls the intelligent switch.
4. Autonomous test overvoltage type monitoring device as claimed in claim 1, it is characterised in that the controller further includes selection
Switch, the selecting switch are arranged on the overvoltage su re or, and the controller controls the mistake by the selecting switch
Press the connection of suppressor.
5. Autonomous test overvoltage type monitoring device as claimed in claim 4, it is characterised in that the cabinet includes some interlayers
Plate, the overvoltage su re or are arranged on the interlayer board, and the overvoltage su re or further includes warning light, and the warning light is set
In the overvoltage su re or circuit.
6. Autonomous test overvoltage type monitoring device as claimed in claim 5, it is characterised in that the cabinet further includes connection dress
Put, the interlayer board is connected by the attachment device with the cabinet.
7. Autonomous test overvoltage type monitoring device as claimed in claim 6, it is characterised in that the attachment device includes setting
Fixed frame in the cabinet and the sliding bar with fixed frame mating connection, the sliding bar can be on the fixed frame
It is free to slide；Mounting hole is set on the sliding bar, fixed part, the fixed part and the mounting hole are set on the interlayer board
It is equipped with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720990769.1U CN207234393U (en) | 2017-08-09 | 2017-08-09 | Autonomous test overvoltage type monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720990769.1U CN207234393U (en) | 2017-08-09 | 2017-08-09 | Autonomous test overvoltage type monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207234393U true CN207234393U (en) | 2018-04-13 |
Family
ID=61856758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720990769.1U Expired - Fee Related CN207234393U (en) | 2017-08-09 | 2017-08-09 | Autonomous test overvoltage type monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207234393U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109687421A (en) * | 2019-02-02 | 2019-04-26 | 深圳莱福德科技股份有限公司 | Start-up circuit |
-
2017
- 2017-08-09 CN CN201720990769.1U patent/CN207234393U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109687421A (en) * | 2019-02-02 | 2019-04-26 | 深圳莱福德科技股份有限公司 | Start-up circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180413 Termination date: 20180809 |
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| CF01 | Termination of patent right due to non-payment of annual fee |