CN106129995A - A kind of novel convenient practical arc-extinguishing harmonic-eliminating and overvoltage protection three-in-one unit - Google Patents
A kind of novel convenient practical arc-extinguishing harmonic-eliminating and overvoltage protection three-in-one unit Download PDFInfo
- Publication number
- CN106129995A CN106129995A CN201610749059.XA CN201610749059A CN106129995A CN 106129995 A CN106129995 A CN 106129995A CN 201610749059 A CN201610749059 A CN 201610749059A CN 106129995 A CN106129995 A CN 106129995A
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- China
- Prior art keywords
- arc
- harmonic
- controller
- extinguishing
- overvoltage protection
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Classifications
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- 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
-
- 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
Abstract
nullThe invention discloses a kind of novel convenient practical arc-extinguishing harmonic-eliminating and overvoltage protection three-in-one unit，Belong to extinguishing arc and overvoltage protection field，Including high-voltage and current-limitation fuse、Znr、Overvoltage protection controller、Harmonic oscillation capacitor、Harmonic wave concussion resistance、Harmonic-eliminating controller、Voltage transformer、Microcomputer、Arc-suppressing controller and linear extinguishing arc resistance，Described novel convenient practical arc-extinguishing harmonic-eliminating and overvoltage protection three-in-one unit are internally provided with high-voltage and current-limitation fuse、Znr、Overvoltage protection controller、Harmonic oscillation capacitor、Harmonic wave concussion resistance、Harmonic-eliminating controller、Voltage transformer、Microcomputer、Arc-suppressing controller and linear extinguishing arc resistance，This novel convenient practical arc-extinguishing harmonic-eliminating and overvoltage protection three-in-one unit are novel in design，Easy to use，Novel convenient practical arc-extinguishing harmonic-eliminating overvoltage protection three-in-one unit is provided with extinguishing arc、Harmonic elimination and two kinds of systems of overvoltage protection，Meet extinguishing arc and overvoltage protection demand.
Description
[technical field]
The invention belongs to extinguishing arc and overvoltage protection field, be specifically related to a kind of novel convenient practical arc-extinguishing harmonic-eliminating overvoltage
Protection three-in-one unit.
[background technology]
The distribution system major part of China below 35kV uses neutral point non-direct grounding system at present, when neutral point is non-straight
When connecing earthed system generation singlephase earth fault, fault current is capacitive current, will light ground connection more than a threshold value
Play unstable electric arc, along with the electromagnetic oscillation of transient process, easily cause single-phase interval arc grounding over-voltage, though amplitude is not
Greatly, if but long-term existence, the equipment that dielectric strength is more weak can be produced harm, and then cause the more serious danger such as phase fault
Evil, further, since the overvoltage phenomenon that resonance overvoltage, switching overvoltage and other reasons cause non-neutral point ground connection is
In system the most relatively common, and overvoltage once occurs often to cause electric equipment to damage or large-area power outage, harm
Property is the biggest.
In neutral point non-direct grounding system, typically use the purpose reaching extinguishing arc by adding arc suppression coil, i.e.
By neutral point through grounding through arc, when system generation single-phase earthing, utilize the inductance current that arc suppression coil produces to event
The capacitance current of barrier point compensates, and makes the residual flow of trouble point reduce, thus reaches the function of blow-out, but due to operation of power networks side
The multiformity of formula and earth fault randomness utilize arc suppression coil to compensate capacitance current to have certain difficulty, and
Arc suppression coil compensates only for power current, to high frequency electric without effective way, owing to limiting the recovery voltage in arc road,
Often arrive peak to occur again puncturing, be thus exaggerated the coefficient of overvoltage, it is impossible to reach preferable effect, and for example fault
It is directly grounded method mutually, judges fault phase owing to entirely accurate can not be reached, easily cause the harm of phase fault；Owing to not consuming
Electric charge unnecessary on bus, once exits, and easily causes PT ferromagnetic resonance；To having the loops such as the high-tension motor of directly joining power supply not
This kind equipment must be used.
Therefore, the problem that those skilled in the art are in the urgent need to address is the most preferably to eliminate lonely light harm, general simultaneously
Arc overvoltage, resonance overvoltage and other types overvoltage are limited in reduced levels.
[summary of the invention]
It is an object of the invention to provide a kind of novel convenient practical arc-extinguishing harmonic-eliminating and overvoltage protection three-in-one unit, to solve
The problem certainly proposed in above-mentioned background technology.
For realizing the object of the invention, the technical scheme is that
A kind of novel convenient practical arc-extinguishing harmonic-eliminating and overvoltage protection three-in-one unit, belong to extinguishing arc and overvoltage protection neck
Territory, including high-voltage and current-limitation fuse, znr, overvoltage protection controller, harmonic oscillation capacitor, harmonic wave shake
Swing resistance, harmonic-eliminating controller, voltage transformer, microcomputer, arc-suppressing controller and linear extinguishing arc resistance, described novel convenient
Practical arc-extinguishing harmonic-eliminating and overvoltage protection three-in-one unit are internally provided with high-voltage and current-limitation fuse, znr, mistake
Voltage protection controller, harmonic oscillation capacitor, harmonic wave concussion resistance, harmonic-eliminating controller, voltage transformer, microcomputer,
Arc-suppressing controller and linear extinguishing arc resistance, described overvoltage protection system is provided with znr, high voltage protection
Controller and microcomputer, described harmonic elimination system be provided with harmonic wave concussion capacitor, harmonic wave concussion resistance, harmonic-eliminating controller and
Microcomputer, described arc-extinguishing system is provided with microcomputer, arc-suppressing controller and linear extinguishing arc resistance, described miniature calculating
The upper end of machine is provided with voltage transformer.
Further, described overvoltage protection system include 1 vacuum contactor K1,1 znr and
One overvoltage protection controller, wherein, the line input of vacuum contactor K1 is connected with high voltage power supply, vacuum contactor K1's
Line output terminal is connected with the line input of znr, the line output terminal ground connection of znr, the most electric
The line output terminal of pressure protection controller connects vacuum contactor K1, and line input is connected with microcomputer.
Further, described harmonic elimination system includes 1 vacuum contactor K2,1 harmonic wave concussion capacitor, 1 harmonic wave shake
Swinging resistance and 1 harmonic-eliminating controller, wherein, the line input of vacuum contactor K2 is connected with high voltage power supply, outfan and harmonic wave
Concussion capacitor connects, and the line output terminal of harmonic wave concussion capacitor is connected with harmonic wave concussion resistance, and the line of harmonic wave concussion resistance is defeated
Going out and hold ground connection, the line output terminal of harmonic-eliminating controller is connected with vacuum contactor K2, and line input is connected with microcomputer.
Further, described arc-extinguishing system of crossing includes 3 high-voltage quick switch, 1 arc-suppressing controller and 1 linear extinguishing arc
Resistance, wherein, the line input of 3 high-voltage quick switch is connected with high voltage power supply, line output terminal and the line of linear extinguishing arc resistance
Input connects, the line output terminal ground connection of linear extinguishing arc resistance, and the line output terminal of arc-suppressing controller and 3 high-voltage quick switch are even
Connecing, line input is connected with microcomputer.
Further, described detecting system includes 1 voltage transformer and 1 microcomputer, wherein, voltage transformer
Line input be connected with high voltage power supply, the line output terminal of voltage transformer is connected with microcomputer, voltage transformer another
One end ground connection, the line output terminal of microcomputer controls overvoltage protection controller, harmonic-eliminating controller and arc-suppressing controller.
Compared with prior art, there is advantages that this novel convenient practical arc-extinguishing harmonic-eliminating and overvoltage
Protection three-in-one unit cost is low, simple in construction, and novel in design, easy to use, the arc-extinguishing system of setting is internally provided with 3 high pressure
High-speed switch, 1 arc-suppressing controller and 1 linear extinguishing arc resistance, it is possible to effectively eliminate electric arc, it is possible to effectively extinguishing arc, and can
Fast Restoration, the overvoltage protection system of setting be internally provided with 1 vacuum contactor K1,1 znr and
One overvoltage protection controller, it is possible to effectively eliminating the overvoltage infringement to equipment, the harmonic elimination internal system of setting is provided with 1
Individual vacuum contactor K2,1 harmonic wave concussion capacitor, 1 harmonic wave concussion resistance and 1 harmonic-eliminating controller, it is possible to effectively eliminate
The harmonic wave infringement to system.
[accompanying drawing explanation]
Fig. 1 is present configuration schematic diagram.
In figure: 1, high-voltage and current-limitation fuse；2, znr；3, overvoltage protection controller；4, harmonic wave shakes
Swing capacitor；5, harmonic wave concussion resistance；6, harmonic-eliminating controller；7, voltage transformer；8, microcomputer；9, arc-suppressing controller；
10, linear extinguishing arc resistance.
[detailed description of the invention]
For the technological means making the present invention realize, creation characteristic, reach purpose and be easy to understand with effect, below in conjunction with
Detailed description of the invention, is expanded on further the present invention.
As it is shown in figure 1, a kind of novel convenient practical arc-extinguishing harmonic-eliminating and overvoltage protection three-in-one unit, belong to extinguishing arc and the most electric
Pressure protection field, including high-voltage and current-limitation fuse 1, znr 2, overvoltage protection controller 3, harmonic oscillation electricity
Container 4, harmonic wave concussion resistance 5, harmonic-eliminating controller 6, voltage transformer 7, microcomputer 8, arc-suppressing controller 9 and linear extinguishing arc
Resistance 10, described novel convenient practical arc-extinguishing harmonic-eliminating and overvoltage protection three-in-one unit are internally provided with high-voltage and current-limitation fuse
1, znr 2, overvoltage protection controller 3, harmonic oscillation capacitor 4, harmonic wave concussion resistance 5, harmonic elimination control
Device 6, voltage transformer 7, microcomputer 8, arc-suppressing controller 9 and linear extinguishing arc resistance 10, described overvoltage protection system sets
Being equipped with znr 2, high voltage protection controller 3 and microcomputer 8, described harmonic elimination system is provided with harmonic wave shake
Swinging capacitor 4, harmonic wave concussion resistance 5, harmonic-eliminating controller 6 and microcomputer 8, described arc-extinguishing system is provided with microcomputer
8, arc-suppressing controller 9 and linear extinguishing arc resistance 10, the upper end of described microcomputer 8 is provided with voltage transformer 7, described high pressure
High-voltage and current-limitation fuse 1 it is provided with on power supply.
The convenient practical arc-extinguishing harmonic-eliminating of the present invention and overvoltage protection three-in-one unit operationally, microcomputer 8 to from
The voltage signal of voltage transformer 7 judges: when equipment fault reason is arc grounding, microcomputer 8 starts extinguishing arc
High-voltage quick switch K3 is controlled starting by controller 9 so that linear extinguishing arc resistance 10 can work, and is eliminated by arc light, makes
The system of obtaining is become resistance eutral grounding from unstable arc grounding, and when occurring that overvoltage loads, microcomputer 8 starts overvoltage
Protection controller 3 controls to start vacuum contactor K1 so that overvoltage is consumed energy on znr 2 so that
Voltage returns is to normal value, and when there is the concussion of inappropriate harmonic wave, microcomputer 8 controls to start harmonic-eliminating controller 6 and controls
Start vacuum contactor K2, start harmonic wave concussion capacitor 4 and harmonic wave concussion resistance 5 starts work, the harmonic absorption that will produce
Filtering out, the high-voltage and current-limitation fuse 1 that high-voltage power-line is arranged can effectively block the high pressure infringement to equipment.
Wherein, described overvoltage protection system includes 1 vacuum contactor K1,1 znr 2 and one
Overvoltage protection controller 3, wherein, the line input of vacuum contactor K1 is connected with high voltage power supply, the line of vacuum contactor K1
Outfan is connected with the line input of znr 2, the line output terminal ground connection of znr 2, the most electric
The line output terminal of pressure protection controller 3 connects vacuum contactor K1, and line input is connected with microcomputer 8.
Wherein, described harmonic elimination system includes 1 vacuum contactor K2,4,1 harmonic wave concussion electricity of 1 harmonic wave concussion capacitor
Hindering 5 and 1 harmonic-eliminating controllers 6, wherein, the line input of vacuum contactor K2 is connected with high voltage power supply, and outfan shakes with harmonic wave
Swinging capacitor 4 to connect, the line output terminal of harmonic wave concussion capacitor 4 is connected with harmonic wave concussion resistance 5, the line of harmonic wave concussion resistance 5
Output head grounding, the line output terminal of harmonic-eliminating controller 6 is connected with vacuum contactor K2, and line input is connected with microcomputer 8.
Wherein, described arc-extinguishing system of crossing includes 3 high-voltage quick switch, 1 arc-suppressing controller 9 and 1 linear extinguishing arc electricity
Resistance 10, wherein, the line input of 3 high-voltage quick switch is connected with high voltage power supply, line output terminal and linear extinguishing arc resistance 10
Line input connects, the line output terminal ground connection of linear extinguishing arc resistance 10, the line output terminal of arc-suppressing controller 9 and 3 high-voltage high-speed
Switch connects, and line input is connected with microcomputer.
Wherein, described detecting system includes 1 voltage transformer 7 and 1 microcomputer 8, wherein, voltage transformer 7
Line input be connected with high voltage power supply, the line output terminal of voltage transformer 7 is connected with microcomputer 8, voltage transformer 7
Other end ground connection, the line output terminal of microcomputer 8 controls overvoltage protection controller 3, harmonic-eliminating controller 6 and arc-suppressing controller
9。
The ultimate principle of the present invention and principal character and advantages of the present invention have more than been shown and described.The technology of the industry
Personnel, it should be appreciated that the present invention is not restricted to the described embodiments, simply illustrating this described in above-described embodiment and description
The principle of invention, without departing from the spirit and scope of the present invention, the present invention also has various changes and modifications, and these become
Change and improvement both falls within scope of the claimed invention.Claimed scope by appending claims and
Equivalent defines.
Claims (5)
1. novel convenient practical arc-extinguishing harmonic-eliminating and an overvoltage protection three-in-one unit, belong to extinguishing arc and overvoltage protection field,
Including high-voltage and current-limitation fuse (1), znr (2), overvoltage protection controller (3), harmonic oscillation capacitor
(4), harmonic wave concussion resistance (5), harmonic-eliminating controller (6), voltage transformer (7), microcomputer (8), arc-suppressing controller (9) and
Linear extinguishing arc resistance (10), it is characterised in that: inside described novel convenient practical arc-extinguishing harmonic-eliminating and overvoltage protection three-in-one unit
It is provided with high-voltage and current-limitation fuse (1), znr (2), overvoltage protection controller (3), harmonic oscillation electric capacity
Device (4), harmonic wave concussion resistance (5), harmonic-eliminating controller (6), voltage transformer (7), microcomputer (8), arc-suppressing controller (9)
With linear extinguishing arc resistance (10), described overvoltage protection system is provided with znr (2), high voltage protection controls
Device (3) and microcomputer (8), described harmonic elimination system is provided with harmonic wave concussion capacitor (4), harmonic wave concussion resistance (5), harmonic elimination
Controller (6) and microcomputer (8), described arc-extinguishing system is provided with microcomputer (8), arc-suppressing controller (9) and linear
Extinguishing arc resistance (10), the upper end of described microcomputer (8) is provided with voltage transformer (7).
The novel convenient practical arc-extinguishing harmonic-eliminating of one the most according to claim 1 and overvoltage protection three-in-one unit, its feature
It is: described overvoltage protection system includes 1 vacuum contactor K1,1 znr (2) and an overvoltage
Protection controller (3), wherein, the line input of vacuum contactor K1 is connected with high voltage power supply, the line output of vacuum contactor K1
End is connected with the line input of znr (2), and the line output terminal ground connection of znr (2) is the most electric
The line output terminal of pressure protection controller (3) connects vacuum contactor K1, and line input is connected with microcomputer (8).
The novel convenient practical arc-extinguishing harmonic-eliminating of one the most according to claim 1 and overvoltage protection three-in-one unit, its feature
It is: described harmonic elimination system includes 1 vacuum contactor K2,1 harmonic wave concussion capacitor (4), 1 harmonic wave concussion resistance (5)
With 1 harmonic-eliminating controller (6), wherein, the line input of vacuum contactor K2 is connected with high voltage power supply, and outfan shakes with harmonic wave
Capacitor (4) connects, and the line output terminal of harmonic wave concussion capacitor (4) is connected with harmonic wave concussion resistance (5), harmonic wave concussion resistance
(5) line output terminal ground connection, the line output terminal of harmonic-eliminating controller (6) is connected with vacuum contactor K2, line input and microcomputer
Calculation machine (8) connects.
The novel convenient practical arc-extinguishing harmonic-eliminating overvoltage protection three-in-one unit of one the most according to claim 1, its feature exists
In: described arc-extinguishing system of crossing includes 3 high-voltage quick switch, 1 arc-suppressing controller (9) and 1 linear extinguishing arc resistance (10), its
In, the line input of 3 high-voltage quick switch is connected with high voltage power supply, and line output terminal inputs with the line of linear extinguishing arc resistance (10)
End connects, and the line output terminal ground connection of linear extinguishing arc resistance (10), line output terminal and 3 high-voltage high-speed of arc-suppressing controller (9) are opened
Closing and connect, line input is connected with microcomputer.
The novel convenient practical arc-extinguishing harmonic-eliminating overvoltage protection three-in-one unit of one the most according to claim 1, its feature exists
In: described detecting system includes 1 voltage transformer (7) and 1 microcomputer (8), wherein, the line of voltage transformer (7)
Input is connected with high voltage power supply, and the line output terminal of voltage transformer (7) is connected with microcomputer (8), voltage transformer (7)
Other end ground connection, the line output terminal of microcomputer (8) controls overvoltage protection controller (3), harmonic-eliminating controller (6) and disappears
Arc controller (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610749059.XA CN106129995A (en) | 2016-08-28 | 2016-08-28 | A kind of novel convenient practical arc-extinguishing harmonic-eliminating and overvoltage protection three-in-one unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610749059.XA CN106129995A (en) | 2016-08-28 | 2016-08-28 | A kind of novel convenient practical arc-extinguishing harmonic-eliminating and overvoltage protection three-in-one unit |
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| Publication Number | Publication Date |
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| CN106129995A true CN106129995A (en) | 2016-11-16 |
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| CN201610749059.XA Pending CN106129995A (en) | 2016-08-28 | 2016-08-28 | A kind of novel convenient practical arc-extinguishing harmonic-eliminating and overvoltage protection three-in-one unit |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108075462A (en) * | 2017-07-10 | 2018-05-25 | 合肥东玖电气有限公司 | A kind of overvoltage protective system |
| CN108957113A (en) * | 2018-07-18 | 2018-12-07 | 西安恒源利达电气有限公司 | Network-based transformer substation capacitor electric current Online Transaction Processing and test method |
| CN111327034A (en) * | 2018-12-17 | 2020-06-23 | 安徽伟创电力科技有限公司 | Novel high-efficiency arc extinction and overvoltage protection device |
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| CN2817170Y (en) * | 2005-08-19 | 2006-09-13 | 安徽赛普电气有限公司 | Arc-resonance extinction route-selecting over voltage protection device |
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| US5808849A (en) * | 1994-07-01 | 1998-09-15 | Krone Aktiengesellschaft | Method for the protection in particular of telecommunication installations and protection circuit for carrying out the method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108075462A (en) * | 2017-07-10 | 2018-05-25 | 合肥东玖电气有限公司 | A kind of overvoltage protective system |
| CN108957113A (en) * | 2018-07-18 | 2018-12-07 | 西安恒源利达电气有限公司 | Network-based transformer substation capacitor electric current Online Transaction Processing and test method |
| CN108957113B (en) * | 2018-07-18 | 2021-06-11 | 西安恒源利达电气有限公司 | Network-based transformer substation capacitance current online test system and test method |
| CN111327034A (en) * | 2018-12-17 | 2020-06-23 | 安徽伟创电力科技有限公司 | Novel high-efficiency arc extinction and overvoltage protection device |
| CN111327034B (en) * | 2018-12-17 | 2022-02-18 | 安徽伟创电力科技有限公司 | Arc extinction and overvoltage protection device |
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Application publication date: 20161116 |