CN106129989A - A kind of three phase combined over-voltage protector - Google Patents
A kind of three phase combined over-voltage protector Download PDFInfo
- Publication number
- CN106129989A CN106129989A CN201610749483.4A CN201610749483A CN106129989A CN 106129989 A CN106129989 A CN 106129989A CN 201610749483 A CN201610749483 A CN 201610749483A CN 106129989 A CN106129989 A CN 106129989A
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- China
- Prior art keywords
- casing
- ammeter
- voltage
- phase combined
- combined over
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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
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
- H02H9/043—Protection of over-voltage protection device by short-circuiting
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Abstract
The invention discloses a kind of three phase combined over-voltage protector, including controller, observation window, secondary meter room, supports insulative, voltage transformer and vacuum contactor, described controller is fixed on casing front end face top, described casing left surface is provided with wall bushing, described operation handle is provided above secondary meter room, described operation left handle is provided with limiting fuse, below described limiting fuse, vacuum contactor is installed, overvoltage protection device matrix it is fixed with on the left of described vacuum contactor, it is provided with ammeter on the left of described overvoltage protection device matrix, described voltage transformer is arranged on the left of ammeter, described ammeter is arranged above high-tension fuse, described high-tension fuse is connected above disconnecting switch.Voltge surge of the present invention is little, and under various voltage waveforms, place value is the most equal, is not affected by various switching overvoltage waveforms, and the accurate protective value of overvoltage protection value is excellent.
Description
Technical field
The present invention relates to electrical equipment technical field, be specially a kind of three phase combined over-voltage protector.
Background technology
At present, Lightning Over-voltage causes transient state high voltage or overvoltage close often through network line Rhizoma Nelumbinis or transfer to network
On equipment, cause device damage.For the graded insulated transformer of isolated neutral, when lightning wave invades transformer station from circuit
Arrive transformer neutral point, system single-phase earthing, open-phase operation, particularly static exciter inductance and line capacitance resonance
Time, higher lightning surge or power-frequency overvoltage can be produced, graded insulated transformer neutrality is constituted a threat to, even make insulation
Damaging, traditional overvoltage protection device capacitor the is pressure standard-required that is extremely difficult to, resistance-capacitance overvoltage absorber is because it is to mistake
Voltage response speed is very fast, be not able to do in time action time overvoltage have been reduced to below the operation voltage of protector, its result
It is that protector is difficult to work.
Summary of the invention
It is an object of the invention to provide a kind of three phase combined over-voltage protector, to solve above-mentioned background technology carries
The problem gone out, is had an advantageous effect in that；Voltge surge is little, and under various voltage waveforms, place value is the most equal, not by each
Planting the impact of switching overvoltage waveform, the accurate protective value of overvoltage protection value is excellent.
For achieving the above object, the present invention provides following technical scheme: a kind of three phase combined over-voltage protector, including
Controller, observation window, secondary meter room, supports insulative, voltage transformer and vacuum contactor, described controller is fixed on case
Body front end face top, is provided with Current Display below described controller, described observation window is provided with two, and is separately positioned on
The middle part of casing and bottom, be provided with operation handle and electromagnetic lock on the right side of described observation window, and operation handle is arranged on electromagnetic lock
Top, described casing is fixed on anti-skid base, and described operation handle is provided above secondary meter room, and described operation handle is left
Side is provided with limiting fuse, and limiting fuse is arranged on supports insulative, and described limiting fuse is fixedly arranged above and hits
Hit mechanism, on the left of described vacuum contactor, be fixed with overvoltage protection device matrix, arrange on the left of described overvoltage protection device matrix
Having ammeter, described voltage transformer to be arranged on the left of ammeter, described ammeter is arranged above high-tension fuse, described height
Pressure fuse is connected above disconnecting switch.
Preferably, described casing left surface is provided with wall bushing.
Preferably, below described limiting fuse, vacuum contactor is installed.
Preferably, described secondary meter room is arranged above the little bus in cabinet top.
Preferably, described disconnecting switch is arranged on below insulator, and insulator is fixed on casing top.
Compared with prior art, the invention has the beneficial effects as follows: this equipment uses greatly can capacitance oxidization zinc nonlinear resistance
Combining with discharging gap, both protect each other, and discharging gap makes the chargeability of znr be zero, zinc oxide
Nonlinear resistance makes again after discharging gap action without afterflow, and discharging gap no longer undertakes arc extinguishing task, and service life is long, the present invention
Using four star connections that identical overvoltage can be made to be greatly reduced, identical overvoltage reduces 60% compared with ordinary lightning rod
70%, the reliability of protection is greatly improved, and electric discharge instantaneous value is close with residual voltage, calm load, beneficially protective winding type equipment
Turn-to-turn insulation, have employed the outer guiding structure of silastic material and high tension cable, has easily installation, sealing is strong, volume is little, vibration resistance
Etc. advantage, can be directly mounted on the handcart chassis of switch cubicle or transformer is indoor.
Accompanying drawing explanation
Fig. 1 is the external structure schematic diagram of the present invention；
Fig. 2 is the internal structure schematic diagram of the present invention.
In figure: 1-controller；2-Current Display；3-observation window；4-operates handle；5-electromagnetic lock；6-wall bushing；7-
Anti-skid base；8-casing；The little bus in 9-cabinet top；10-secondary meter room；11-knocking gear；12-limiting fuse；13-supports
Insulator；14-insulator；15-disconnecting switch；16-high-tension fuse；17-voltage transformer；18-ammeter；19-overvoltage
Protector matrix；20-vacuum contactor.
Detailed description of the invention
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
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under not making creative work premise
Embodiment, broadly falls into the scope of protection of the invention.
Refer to Fig. 1 and Fig. 2, a kind of embodiment that the present invention provides: a kind of three phase combined over-voltage protector, including
Controller 1, observation window 3, secondary meter room 10, supports insulative 13, voltage transformer 17 and vacuum contactor 20, controller 1
Being fixed on casing 8 front end face top, be provided with Current Display 2 below controller 1, observation window 3 is provided with two, and sets respectively
Put and operation handle 4 and electromagnetic lock 5 are installed on the right side of the middle part of casing 8 and bottom, observation window 3, and operation handle 4 is arranged on electricity
Above magnetic padlock 5, casing 8 is fixed on anti-skid base 7, and operation handle 4 is provided above secondary meter room 10, and operation handle 4 is left
Side is provided with limiting fuse 12, and limiting fuse 12 is arranged on supports insulative 13, and limiting fuse 12 is fixed above
There is knocking gear 11, be fixed with overvoltage protection device matrix 19 on the left of vacuum contactor 20, on the left of overvoltage protection device matrix 19
Being provided with ammeter 18, voltage transformer 17 is arranged on the left of ammeter 18, and ammeter 18 is arranged above high-tension fuse 16,
High-tension fuse 16 is connected above disconnecting switch 15, and casing 8 left surface is provided with wall bushing 6, below limiting fuse 12
Being provided with vacuum contactor 20, secondary meter room 10 is arranged above the little bus in cabinet top 9, and disconnecting switch 15 is arranged on insulator 14
Lower section, and insulator 14 is fixed on casing 8 top.
Operation principle: during use, circuit wall bushing 6 is arranged on casing 8, pull operation handle 4, disconnecting switch 15 connects
Logical, Current Display 2 shows that current parameters, voltage transformer 17 sense high-tension electricity, when electric current amount is bigger, and limiting fuse
Fuse fusing on 12, knocking gear 11 clashes into operation handle 4 and resets, and supports insulative 13 plays obstruct in this course
Insulating effect, discharging gap makes the chargeability of ZnO resistors be zero, and the nonlinear characteristic of zinc oxide makes again discharging gap action
After blow-out immediately.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of the spirit or essential attributes of the present invention, it is possible to realize the present invention in other specific forms.Therefore, no matter
From the point of view of which point, all should regard embodiment as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit requires rather than described above limits, it is intended that all by fall in the implication of equivalency and scope of claim
Change is included in the present invention.Should not be considered as limiting involved claim by any reference in claim.
Claims (5)
1. a three phase combined over-voltage protector, including controller (1), observation window (3), secondary meter room (10), support
Insulator (13), voltage transformer (17) and vacuum contactor (20), it is characterised in that: described controller (1) is fixed on casing
(8) front end face top, described controller (1) lower section is provided with Current Display (2), and described observation window (3) is provided with two, and
Being separately positioned on middle part and the bottom of casing (8), described observation window (3) right side is provided with operation handle (4) and electromagnetic lock (5),
And operation handle (4) is arranged on electromagnetic lock (5) top, described casing (8) is fixed on anti-skid base (7), described operation handle
(4) being provided above secondary meter room (10), described operation handle (4) left side is provided with limiting fuse (12), and current limliting melts
Disconnected device (12) is arranged in supports insulative (13), and described limiting fuse (12) is fixedly arranged above knocking gear (11), described
Vacuum contactor (20) left side is fixed with overvoltage protection device matrix (19), and described overvoltage protection device matrix (19) left side is arranged
Having ammeter (18), described voltage transformer (17) to be arranged on ammeter (18) left side, described ammeter (18) is arranged above
High-tension fuse (16), described high-tension fuse (16) is connected above disconnecting switch (15).
A kind of three phase combined over-voltage protector the most according to claim 1, it is characterised in that: described casing (8) is left
Side is provided with wall bushing (6).
A kind of three phase combined over-voltage protector the most according to claim 1, it is characterised in that: described limiting fuse
(12) lower section is provided with vacuum contactor (20).
A kind of three phase combined over-voltage protector the most according to claim 1, it is characterised in that: described secondary meter room
(10) the little bus in cabinet top (9) it is arranged above.
A kind of three phase combined over-voltage protector the most according to claim 1, it is characterised in that: described disconnecting switch
(15) it is arranged on insulator (14) lower section, and insulator (14) is fixed on casing (8) top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610749483.4A CN106129989A (en) | 2016-08-28 | 2016-08-28 | A kind of three phase combined over-voltage protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610749483.4A CN106129989A (en) | 2016-08-28 | 2016-08-28 | A kind of three phase combined over-voltage protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106129989A true CN106129989A (en) | 2016-11-16 |
Family
ID=57272599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610749483.4A Pending CN106129989A (en) | 2016-08-28 | 2016-08-28 | A kind of three phase combined over-voltage protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106129989A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114709787A (en) * | 2022-06-06 | 2022-07-05 | 安徽凯川电力保护设备有限公司 | Lightning protection device with automatic tripping function |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030151862A1 (en) * | 2000-07-21 | 2003-08-14 | Kouwenhoven Jacobus Theodorus Antonius | System for overvoltage protection |
| CN201388042Y (en) * | 2009-03-24 | 2010-01-20 | 淄博瑞源电力保护设备有限公司 | Central high-voltage switch equal-height cabinet |
| CN102593817A (en) * | 2012-02-16 | 2012-07-18 | 安徽华正电气有限公司 | Microcomputer arc-extinguishing and over-voltage protection integrated device |
| CN203660531U (en) * | 2013-12-13 | 2014-06-18 | 安徽恒凯电力保护设备有限公司 | Novel intelligent arc-extinguishing and over-voltage protection device |
| CN105743057A (en) * | 2016-04-22 | 2016-07-06 | 平玉兰 | High-voltage current-limiting protection apparatus for key water-control project |
| CN205945048U (en) * | 2016-08-28 | 2017-02-08 | 安徽普天电力科技有限公司 | Three -phase combined type over -voltage protector |
-
2016
- 2016-08-28 CN CN201610749483.4A patent/CN106129989A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030151862A1 (en) * | 2000-07-21 | 2003-08-14 | Kouwenhoven Jacobus Theodorus Antonius | System for overvoltage protection |
| CN201388042Y (en) * | 2009-03-24 | 2010-01-20 | 淄博瑞源电力保护设备有限公司 | Central high-voltage switch equal-height cabinet |
| CN102593817A (en) * | 2012-02-16 | 2012-07-18 | 安徽华正电气有限公司 | Microcomputer arc-extinguishing and over-voltage protection integrated device |
| CN203660531U (en) * | 2013-12-13 | 2014-06-18 | 安徽恒凯电力保护设备有限公司 | Novel intelligent arc-extinguishing and over-voltage protection device |
| CN105743057A (en) * | 2016-04-22 | 2016-07-06 | 平玉兰 | High-voltage current-limiting protection apparatus for key water-control project |
| CN205945048U (en) * | 2016-08-28 | 2017-02-08 | 安徽普天电力科技有限公司 | Three -phase combined type over -voltage protector |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114709787A (en) * | 2022-06-06 | 2022-07-05 | 安徽凯川电力保护设备有限公司 | Lightning protection device with automatic tripping function |
| CN114709787B (en) * | 2022-06-06 | 2022-08-09 | 安徽凯川电力保护设备有限公司 | Lightning protection ware with automatic tripping operation function |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161116 |
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