CN206135409U - Novel convenient practical arc extinction harmonic elimination and overvoltage protection three way device - Google Patents
Novel convenient practical arc extinction harmonic elimination and overvoltage protection three way device Download PDFInfo
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- CN206135409U CN206135409U CN201620968993.6U CN201620968993U CN206135409U CN 206135409 U CN206135409 U CN 206135409U CN 201620968993 U CN201620968993 U CN 201620968993U CN 206135409 U CN206135409 U CN 206135409U
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- harmonic
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- overvoltage protection
- controller
- resistance
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Abstract
The utility model discloses a novel convenient practical arc extinction harmonic elimination and overvoltage protection three way device belongs to arc extinction and overvoltage protection field, including high voltage current limiting fuse, zinc oxide nonlinear resistor, overvoltage protection controller, harmonic oscillation condenser, harmonic shock resistance, harmonic elimination controller, voltage transformer, microcomputer, arc extinction controller and linear arc extinction resistance, the inside high voltage current limiting fuse that is provided with of novel convenient practical arc extinction harmonic elimination and overvoltage protection three way device, zinc oxide nonlinear resistor, the overvoltage protection controller, the harmonic oscillation condenser, the harmonic vibrates resistance, the harmonic elimination controller, voltage transformer, a microcomputer, arc extinction controller and linear arc extinction resistance, this novel convenient practical arc extinction harmonic elimination and overvoltage protection three way device is novel in design, high durability and convenient use, novel convenient practical arc extinction harmonic elimination overvoltage protection three -in -one unit is provided with the arc extinction, two kinds of systems of harmonic elimination and overvoltage protection, satisfy arc extinction and overvoltage protection demand.
Description
Technical field
The utility model belongs to extinguishing arc and overvoltage protection field, and in particular to a kind of new convenient practical arc-extinguishing harmonic-eliminating mistake
Voltage protection three-in-one unit.
Background technology
At present the distribution system major part of below China 35kV adopts neutral point non-direct grounding system, when neutral point it is non-straight
When connecing earthed system generation singlephase earth fault, fault current is capacitive current, will be lighted in ground connection more than a threshold value
Unstable electric arc is played, along with the electromagnetic viscosimeter of transient process, easily causes single-phase interval arc grounding over-voltage, though amplitude is not
Greatly, if but long-term existence, the equipment weaker to dielectric strength can produce 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 reasonses cause is in non-neutral point ground connection
It is also relatively common in system, and overvoltage endangers once occurring often to cause electric equipment to damage or large-area power outage
Property is very big.
In neutral point non-direct grounding system, typically using the purpose that extinguishing arc is reached by adding arc suppression coil, i.e.,
By neutral point through grounding through arc, when there is single-phase earthing in system, the inductance current pair event produced using arc suppression coil
The capacitance current of barrier point is compensated, and the residual flow for making trouble point reduces, so as to reach the function of blow-out, but due to operation of power networks side
The diversity and earth fault randomness of formula is compensated with certain difficulty using arc suppression coil to capacitance current, and
Arc suppression coil is compensated only for power current, to high frequency electric without effective way, the recovery voltage due to limiting arc road,
Often arrive peak to occur puncturing again, be thus exaggerated the coefficient of overvoltage, it is impossible to reach preferable effect, and for example failure
Method is mutually directly grounded, due to entirely accurate can not be reached failure phase is judged, easily cause the harm of phase fault；Due to consuming
Unnecessary electric charge on bus, once exiting, easily causes PT ferromagnetic resonances；To having the loops such as the straight high-tension motor with power supply not
This kind equipment must be used.
Therefore, those skilled in the art's problem in the urgent need to address is how preferably to eliminate lonely light harm, while will
Arc overvoltage, resonance overvoltage and other types overvoltage are limited in reduced levels.
Utility model content
The purpose of this utility model is to provide a kind of new convenient practical arc-extinguishing harmonic-eliminating and overvoltage protection three-in-one unit,
Propose in solve the problems, such as above-mentioned background technology.
To realize the utility model purpose, the technical scheme of employing is：A kind of new convenient practical arc-extinguishing harmonic-eliminating and excessively electric
Pressure protection three-in-one unit, 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 electricity
Resistance, is provided with excessively electric in overvoltage protection system, harmonic elimination system, arc-extinguishing system and detecting system, described device in described device
Pressure protection system is provided with znr, overvoltage protection controller and microcomputer, harmonic elimination in described device
System is provided with harmonic wave concussion capacitor, harmonic wave concussion resistance, harmonic-eliminating controller and microcomputer, extinguishing arc system in described device
System is provided with microcomputer, arc-suppressing controller and linear extinguishing arc resistance, and it is mutual that the upper end of the microcomputer is provided with voltage
Sensor.
Preferably, described device internal overvoltage protection system includes 1 vacuum contactor K1,1 zinc oxide nonlinear electricity
Resistance and an overvoltage protection controller, wherein, the line input of vacuum contactor K1 is connected with high voltage power supply, vacuum contactor
The line output terminal of K1 is connected with the line input of znr, the line output terminal ground connection of znr,
The line output terminal connection vacuum contactor K1 of overvoltage protection controller, line input is connected with microcomputer.
Preferably, in described device harmonic elimination system include 1 vacuum contactor K2,1 harmonic wave concussion capacitor, 1 it is humorous
Ripple shakes resistance and 1 harmonic-eliminating controller, wherein, the line input of vacuum contactor K2 is connected with high voltage power supply, output end and
Harmonic wave concussion capacitor connection, the line output terminal of harmonic wave concussion capacitor is connected with harmonic wave concussion resistance, harmonic wave concussion resistance
Line output terminal is grounded, and the line output terminal of harmonic-eliminating controller is connected with vacuum contactor K2, and line input is connected with microcomputer.
Preferably, arc-extinguishing system linearly disappears including 3 high-voltage quick switch, 1 arc-suppressing controller and 1 in described device
Arc resistance, 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
The connection of line input, the line output terminal ground connection of linear extinguishing arc resistance, the line output terminal of arc-suppressing controller and 3 high-voltage quick switch
Connection, line input is connected with microcomputer.
Preferably, detecting system includes 1 voltage transformer and 1 microcomputer in described device, wherein, voltage is mutual
The line input of sensor is connected with high voltage power supply, and the line output terminal of voltage transformer is connected with microcomputer, voltage transformer
Other end ground connection, the line output terminal control overvoltage protection controller of microcomputer, harmonic-eliminating controller and arc-suppressing controller.
Compared with prior art, the beneficial effects of the utility model are：This new convenient practical arc-extinguishing harmonic-eliminating and overvoltage
Protection three-in-one unit low cost, simple structure, 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, can effectively eliminate electric arc, can effective 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, can effectively eliminate infringement of the overvoltage to equipment, and 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, can effectively eliminate
Infringement of the harmonic wave to system.
Description of the drawings
Fig. 1 is the utility model structural representation.
In figure：1. the harmonic wave of 2. znr of high-voltage and current-limitation fuse, 3. overvoltage protection controller 4. shakes
Swing the arc-suppressing controller of 8. microcomputer of the harmonic wave of capacitor 5. concussion resistance 6. harmonic-eliminating controller, 7. voltage transformer 9.
10. linear extinguishing arc resistance
Specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment for being obtained, belongs to the scope of the utility model protection.
Refer to shown in Fig. 1, the utility model provides a kind of technical scheme：A kind of new convenient practical arc-extinguishing harmonic-eliminating and mistake
Voltage protection three-in-one unit, belongs to extinguishing arc and overvoltage protection field, including high-voltage and current-limitation fuse 1, zinc oxide nonlinear electricity
Resistance 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, are provided with overvoltage protection system, harmonic elimination system in described device
System, arc-extinguishing system and detecting system, described device internal overvoltage protection system is provided with znr 2, overvoltage
Protection controller 3 and microcomputer 8, harmonic elimination system is provided with harmonic wave concussion capacitor 4, harmonic wave concussion resistance in described device
5th, harmonic-eliminating controller 6 and microcomputer 8, arc-extinguishing system is provided with microcomputer 8, the and of arc-suppressing controller 9 in described device
Linear extinguishing arc resistance 10, the upper end of the microcomputer 8 is provided with voltage transformer 7, and in the high voltage power supply height is provided with
Pressure limiting fuse 1.
Operation principle：During work, 8 pairs of voltage signals from voltage transformer 7 of microcomputer judge：Work as equipment
When failure cause is arc grounding, microcomputer 8 starts arc-suppressing controller 9 and is controlled startup to high-voltage quick switch K3,
Linear extinguishing arc resistance 10 is worked, arc light is eliminated so that system is changed into resistance eutral grounding from unstable arc grounding,
When there is overvoltage load, microcomputer 8 starts overvoltage protection controller 3 and controls to start vacuum contactor K1 so that
Overvoltage consumed energy on znr 2 so that voltage returns to normal value, shakes when there is inappropriate harmonic wave
When swinging, the control of microcomputer 8 starts the control of harmonic-eliminating controller 6 and starts vacuum contactor K2, starts the harmonic wave concussion He of capacitor 4
Harmonic wave concussion resistance 5 starts work, the harmonic absorption of generation is filtered out, the high-voltage and current-limitation fuse arranged on high-voltage power-line
1 can effectively block infringement of the high pressure to equipment.
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out various changes in the case of without departing from principle of the present utility model and spirit, repaiies
Change, replace and modification, scope of the present utility model is defined by the appended claims and the equivalents thereof.
Claims (5)
1. a kind of new convenient practical arc-extinguishing harmonic-eliminating and overvoltage protection three-in-one unit, including high-voltage and current-limitation fuse (1), oxidation
Zinc nonlinear resistance (2), overvoltage protection controller (3), harmonic oscillation capacitor (4), harmonic wave concussion resistance (5), harmonic elimination control
Device (6) processed, voltage transformer (7), microcomputer (8), arc-suppressing controller (9) and linear extinguishing arc resistance (10), its feature exists
In：It is provided with described device excessively electric in overvoltage protection system, harmonic elimination system, arc-extinguishing system and detecting system, described device
Pressure protection system is set to znr (2), overvoltage protection controller (3) and microcomputer (8), the dress
Put interior harmonic elimination system and be set to harmonic wave concussion capacitor (4), harmonic wave concussion resistance (5), harmonic-eliminating controller (6) and microcomputer
(8), arc-extinguishing system is set to microcomputer (8), arc-suppressing controller (9) and linear extinguishing arc resistance (10), institute in described device
The upper end for stating microcomputer (8) is provided with voltage transformer (7).
2. the new convenient practical arc-extinguishing harmonic-eliminating of one kind according to claim 1 and overvoltage protection three-in-one unit, its feature
It is：Described device internal overvoltage protection system includes 1 vacuum contactor K1,1 znr (2) and 1
Overvoltage protection controller (3), 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 (2), and the line output terminal of znr (2) connects
Ground, the line output terminal connection vacuum contactor K1 of overvoltage protection controller (3), line input is connected with microcomputer (8).
3. the new convenient practical arc-extinguishing harmonic-eliminating of one kind according to claim 1 and overvoltage protection three-in-one unit, its feature
It is：Harmonic elimination system includes 1 vacuum contactor K2,1 harmonic wave concussion capacitor (4), 1 harmonic wave concussion electricity in described device
Resistance (5) and 1 harmonic-eliminating controller (6), wherein, the line input of vacuum contactor K2 is connected with high voltage power supply, output end with it is humorous
Ripple concussion capacitor (4) connection, the line output terminal of harmonic wave concussion capacitor (4) is connected with harmonic wave concussion resistance (5), harmonic wave concussion
The line output terminal ground connection of resistance (5), the line output terminal of harmonic-eliminating controller (6) is connected with vacuum contactor K2, line input with it is micro-
Type computer (8) connects.
4. the new convenient practical arc-extinguishing harmonic-eliminating of one kind according to claim 1 and overvoltage protection three-in-one unit, its feature
It is：Arc-extinguishing system includes 3 high-voltage quick switch K3,1 arc-suppressing controller (9) and 1 linear extinguishing arc electricity in described device
Resistance (10), wherein, the line input of 3 high-voltage quick switch K3 is connected with high voltage power supply, line output terminal and linear extinguishing arc resistance
(10) line input connection, the line output terminal ground connection of linear extinguishing arc resistance (10), the line output terminal and 3 of arc-suppressing controller (9)
Individual high-voltage quick switch connection, line input is connected with microcomputer.
5. the new convenient practical arc-extinguishing harmonic-eliminating of one kind according to claim 1 and overvoltage protection three-in-one unit, its feature
It is：Detecting system includes 1 voltage transformer (7) and 1 microcomputer (8) in described device, wherein, voltage transformer
(7) line input is connected with high voltage power supply, and the line output terminal of voltage transformer (7) is connected with microcomputer (8), and voltage is mutual
The other end ground connection of sensor (7), line output terminal control overvoltage protection controller (3) of microcomputer (8), harmonic-eliminating controller
And arc-suppressing controller (9) (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620968993.6U CN206135409U (en) | 2016-08-28 | 2016-08-28 | Novel convenient practical arc extinction harmonic elimination and overvoltage protection three way device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620968993.6U CN206135409U (en) | 2016-08-28 | 2016-08-28 | Novel convenient practical arc extinction harmonic elimination and overvoltage protection three way device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206135409U true CN206135409U (en) | 2017-04-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620968993.6U Expired - Fee Related CN206135409U (en) | 2016-08-28 | 2016-08-28 | Novel convenient practical arc extinction harmonic elimination and overvoltage protection three way device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206135409U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107154618A (en) * | 2017-07-10 | 2017-09-12 | 合肥东玖电气有限公司 | A kind of intelligent extinguishing arc of height and over-pressure safety device |
| 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 |
-
2016
- 2016-08-28 CN CN201620968993.6U patent/CN206135409U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107154618A (en) * | 2017-07-10 | 2017-09-12 | 合肥东玖电气有限公司 | A kind of intelligent extinguishing arc of height and over-pressure safety device |
| 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 |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170426 Termination date: 20190828 |