CN107154618A - A kind of intelligent extinguishing arc of height and over-pressure safety device - Google Patents
A kind of intelligent extinguishing arc of height and over-pressure safety device Download PDFInfo
- Publication number
- CN107154618A CN107154618A CN201710554335.1A CN201710554335A CN107154618A CN 107154618 A CN107154618 A CN 107154618A CN 201710554335 A CN201710554335 A CN 201710554335A CN 107154618 A CN107154618 A CN 107154618A
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- CN
- China
- Prior art keywords
- arc
- output terminal
- line
- line output
- microcomputer
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/08—Limitation or suppression of earth fault currents, e.g. Petersen coil
Abstract
The invention discloses a kind of intelligent extinguishing arc of height and over-pressure safety device, it includes vacuum circuit breaker, arc-extinguishing system and overvoltage protective system；Arc-extinguishing system includes three high-voltage quick switch, an arc-suppressing controller and a linear extinguishing arc resistance, the line input of three high-voltage quick switch is connected with high voltage power supply, line output terminal is connected with the line input of linear extinguishing arc resistance, the line output terminal ground connection of linear extinguishing arc resistance, the line output terminal of arc-suppressing controller is connected with three high-voltage quick switch, and line input is connected with microcomputer；Overvoltage protection system includes a vacuum contactor K1, a znr and an overvoltage protection controller; vacuum contactor K1 line input is connected with high voltage power supply; vacuum contactor K1 line output terminal and the line input of znr are connected; the line output terminal ground connection of znr, the line output terminal connection vacuum contactor K1 of overvoltage protection controller.
Description
Technical field
Present invention relates particularly to a kind of intelligent extinguishing arc of height and over-pressure safety device.
Background technology
Current 3 ~ 35KW neutral point indirect earthings, the electricity of neutral by arc extinction coil grounding or neutral point through high resistance ground
In Force system, because all kinds of overvoltage protection devices are single without extinguishing arc, harmonic elimination function, or function so that can not effectively avoid because
System is alternate and phase ground between the atmospheric over-voltage, single-phase to things such as having a rest property arc grounding over-voltage, ferro-resonance over-voltages that triggers
Therefore generation, these overvoltage constitute certain threat to life-span of power system device and operation safety.
The content of the invention
For above-mentioned deficiency of the prior art, the intelligent extinguishing arc of height and over-pressure safety device structure that the present invention is provided
Novelty, can automatically make a response to fault message, and reaction is quick, and practicality, security are stronger.
In order to reach foregoing invention purpose, the technical solution adopted by the present invention is：There is provided a kind of intelligent extinguishing arc of height and
Over-pressure safety device, it include can monophasic action vacuum circuit breaker, arc-extinguishing system and overvoltage protective system；Arc-extinguishing system includes
Three high-voltage quick switch, an arc-suppressing controller and a linear extinguishing arc resistance, the line input of three high-voltage quick switch
It is connected with high voltage power supply, line output terminal is connected with the line input of linear extinguishing arc resistance, the line output terminal of linear extinguishing arc resistance connects
Ground, the line output terminal of arc-suppressing controller is connected with three high-voltage quick switch, and line input is connected with microcomputer；Overvoltage
Protection system includes a vacuum contactor K1, a znr and an overvoltage protection controller, vacuum
Contactor K1 line input is connected with high voltage power supply, vacuum contactor K1 line output terminal and the line of znr
Input is connected, the line output terminal ground connection of znr, the line output terminal connection vacuum of overvoltage protection controller
Contactor K1, line input is connected with microcomputer, and microcomputer is connected with an alarm module, memory module and communication mould
Block.
Further, the upper end of microcomputer is provided with voltage transformer, the line input and high pressure of voltage transformer
Power supply is connected, and the line output terminal of voltage transformer is connected with microcomputer, the other end ground connection of voltage transformer, miniature calculating
The line output terminal control overvoltage protection controller and arc-suppressing controller of machine.
Beneficial effects of the present invention are：The microcomputer of the intelligent extinguishing arc of the height and over-pressure safety device is to from electricity
The voltage signal of pressure transformer is judged：When equipment fault reason is arc grounding, microcomputer starts extinguishing arc control
Device is controlled startup to high-voltage quick switch K3 so that linear extinguishing arc resistance can be worked, and arc light is eliminated so that system by
Unstable arc grounding is changed into resistance eutral grounding；When freeing the single-phase interval phase arc grounding that microcomputer can not quickly judge
During failure, set on high-voltage power-line can monophasic action vacuum circuit breaker can control device can act in 30ms, general
Unstable arc grounding is converted into stable metallic ground, and the overvoltage that arc grounding triggers is limited on-Line Voltage level,
The insulation breakdown short circuit accident and Explosion of on Arrester accident for greatly reducing single-phase earthing arc light duration and thus triggering；When
When there is overvoltage load, microcomputer starts the control of overvoltage protection controller and starts vacuum contactor K1 so that excessively electric
It is pressed in consumed energy on znr so that voltage returns to normal value.
Brief description of the drawings
Fig. 1 is the structural representation of the intelligent extinguishing arc of height and over-pressure safety device.
Wherein：1st, vacuum circuit breaker；2nd, znr；3rd, overvoltage protection controller；4th, voltage transformer；
5th, microcomputer；6th, arc-suppressing controller.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only an embodiment of the present invention, rather than whole embodiments.Based on this
Embodiment in invention, the every other reality that those of ordinary skill in the art are obtained under the premise of creative work is not made
Example is applied, protection scope of the present invention is belonged to.
To make the purpose, technical scheme and advantage of the application clearer, below in conjunction with drawings and the specific embodiments, to this
Application is described in further detail.
In the following description, the reference to " one embodiment ", " embodiment ", " example ", " example " etc. shows
The embodiment or example so described can include special characteristic, structure, characteristic, property, element or limit, but not each real
Applying example or example all necessarily includes special characteristic, structure, characteristic, property, element or limit.In addition, reuse phrase " according to
One embodiment of the application " is not necessarily referring to identical embodiment although it is possible to refer to phase be the same as Example.
According to one embodiment of the application, a kind of intelligent extinguishing arc of height and over-pressure safety device are given, such as Fig. 1 institutes
Show, the intelligent extinguishing arc of height and over-pressure safety device include can vacuum circuit breaker 1, arc-extinguishing system and the overvoltage of monophasic action protect
Protecting system；Arc-extinguishing system includes three high-voltage quick switch, an arc-suppressing controller 6 and a linear extinguishing arc resistance, three high
The line input of pressure high-speed switch is connected with high voltage power supply, and line output terminal is connected with the line input of linear extinguishing arc resistance, linearly
The line output terminal ground connection of extinguishing arc resistance, the line output terminal of arc-suppressing controller 6 is connected with three high-voltage quick switch, line input and
Microcomputer 5 is connected；Overvoltage protection system includes vacuum contactor K1, a znr 2 and one
Individual overvoltage protection controller 3, vacuum contactor K1 line input is connected with high voltage power supply, vacuum contactor K1 line output
End is connected with the line input of znr 2, and the line output terminal ground connection of znr 2, overvoltage is protected
The line output terminal connection vacuum contactor K1 of controller 3 is protected, line input is connected with microcomputer 5, and microcomputer 5 is connected
There are an alarm module, memory module and communication module.
According to one embodiment of the application, the upper end of microcomputer 5 is provided with voltage transformer 4, voltage transformer 4
Line input be connected with high voltage power supply, the line output terminal of voltage transformer 4 is connected with microcomputer 5, voltage transformer 4
The other end is grounded, the line output terminal control overvoltage protection controller 3 and arc-suppressing controller 6 of microcomputer 5.
5 pairs of voltage signals from voltage transformer 4 of microcomputer judge：When equipment fault reason is that arc light connects
During ground, microcomputer 5 starts arc-suppressing controller 6 and is controlled startup to high-voltage quick switch K3 so that linear extinguishing arc resistance
It can work, arc light is eliminated so that system is changed into resistance eutral grounding from unstable arc grounding；When freeing microcomputer 5
During the single-phase interval phase arc grounding failure that can not quickly judge, set on high-voltage power-line can monophasic action vacuum break
Road device 1 can control device and can be acted in 30ms, and unstable arc grounding is converted into stable metallic ground, arc light is connect
The overvoltage limitation on-Line Voltage level that ground triggers, greatly reduces single-phase earthing arc light duration and the insulation thus triggered
Puncture short accident and Explosion of on Arrester accident；When there is overvoltage load, microcomputer 5 starts overvoltage protection control
The control of device 3 starts vacuum contactor K1 so that overvoltage consumed energy on znr 2 so that voltage returns
To normal value.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or using the present invention.
A variety of modifications to these embodiments will make it will be apparent that defined herein one for those skilled in the art
As principle can in other embodiments be realized in the case where not departing from the spirit or scope of invention.Therefore, the present invention will not
It can be limited and the embodiments shown herein, and be to fit to consistent with principles disclosed herein and novel features
Most wide scope.
Claims (2)
1. a kind of intelligent extinguishing arc of height and over-pressure safety device, it is characterised in that：Including can monophasic action vacuum circuit breaker,
Arc-extinguishing system and overvoltage protective system；The arc-extinguishing system includes three high-voltage quick switch, an arc-suppressing controller and one
Linear extinguishing arc resistance, the line input of three high-voltage quick switch is connected with high voltage power supply, line output terminal and linear extinguishing arc
Resistance line input connection, the linear extinguishing arc resistance line output terminal ground connection, the line output terminal of the arc-suppressing controller with
Three high-voltage quick switch connections, line input is connected with microcomputer；The overvoltage protection system includes a vacuum
Contactor K1, a znr and an overvoltage protection controller, the line input of the vacuum contactor K1
End is connected with high voltage power supply, and the line output terminal of the vacuum contactor K1 connects with the line input of the znr
Connect, the line output terminal ground connection of the znr, the line output terminal connection vacuum of the overvoltage protection controller
Contactor K1, the line input is connected with microcomputer, and the microcomputer is connected with an alarm module, memory module
And communication module.
2. the intelligent extinguishing arc of height according to claim 1 and over-pressure safety device, it is characterised in that：The miniature calculating
The upper end of machine is provided with voltage transformer, and the line input of the voltage transformer is connected with high voltage power supply, the mutual induction of voltage
The line output terminal of device is connected with microcomputer, and the other end ground connection of the voltage transformer, the line of the microcomputer is defeated
Go out end control overvoltage protection controller and arc-suppressing controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710554335.1A CN107154618A (en) | 2017-07-10 | 2017-07-10 | A kind of intelligent extinguishing arc of height and over-pressure safety device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710554335.1A CN107154618A (en) | 2017-07-10 | 2017-07-10 | A kind of intelligent extinguishing arc of height and over-pressure safety device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107154618A true CN107154618A (en) | 2017-09-12 |
Family
ID=59796787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710554335.1A Pending CN107154618A (en) | 2017-07-10 | 2017-07-10 | A kind of intelligent extinguishing arc of height and over-pressure safety device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107154618A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202524078U (en) * | 2012-04-10 | 2012-11-07 | 安徽国科电力设备有限公司 | Arc suppression and overvoltage protection device controller |
| CN105870906A (en) * | 2016-06-27 | 2016-08-17 | 肥西县碧涛建材有限公司 | Intelligent switch arc extinction and overvoltage protection device |
| CN106129994A (en) * | 2016-08-28 | 2016-11-16 | 安徽普天电力科技有限公司 | A kind of novel efficient extinguishing arc and overvoltage protection |
| CN206135409U (en) * | 2016-08-28 | 2017-04-26 | 安徽普天电力科技有限公司 | Novel convenient practical arc extinction harmonic elimination and overvoltage protection three way device |
-
2017
- 2017-07-10 CN CN201710554335.1A patent/CN107154618A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202524078U (en) * | 2012-04-10 | 2012-11-07 | 安徽国科电力设备有限公司 | Arc suppression and overvoltage protection device controller |
| CN105870906A (en) * | 2016-06-27 | 2016-08-17 | 肥西县碧涛建材有限公司 | Intelligent switch arc extinction and overvoltage protection device |
| CN106129994A (en) * | 2016-08-28 | 2016-11-16 | 安徽普天电力科技有限公司 | A kind of novel efficient extinguishing arc and overvoltage protection |
| CN206135409U (en) * | 2016-08-28 | 2017-04-26 | 安徽普天电力科技有限公司 | Novel convenient practical arc extinction harmonic elimination and overvoltage protection three way device |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170912 |
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| WD01 | Invention patent application deemed withdrawn after publication |