CN205945048U - Three -phase combined type over -voltage protector - Google Patents
Three -phase combined type over -voltage protector Download PDFInfo
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- CN205945048U CN205945048U CN201620968535.2U CN201620968535U CN205945048U CN 205945048 U CN205945048 U CN 205945048U CN 201620968535 U CN201620968535 U CN 201620968535U CN 205945048 U CN205945048 U CN 205945048U
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- voltage
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- phase combined
- vacuum contactor
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Abstract
The utility model discloses a three -phase combined type over -voltage protector, including controller, observation window, secondary meter room, supporting insulator, voltage transformer and vacuum contactor, terminal surface top before the box is fixed to the controller, the box left surface is provided with the wall bushing, the operating handle top is provided with the secondary meter room, operating handle installs current -limiting fuses in the left side, current -limiting fuses installs vacuum contactor in the below, the vacuum contactor left side is fixed with the overvoltage protection device base member, overvoltage protection device base member left side is provided with the ampere meter, voltage transformer sets up in the ampere meter left side, the high -tension fuse is installed to the ampere meter top, the high -tension fuse top is connected with isolator. The utility model discloses voltage surge nature is little, and the value homogeneous phase etc. That discharges under various voltage waveform does not receive the various influences of operating voltage waveform, and accurate protective properties is good for the overvoltage protection value.
Description
Technical field
This utility model is related to electrical equipment technical field, specially a kind of three phase combined over-voltage protector.
Background technology
At present, Lightning Over-voltage causes transient state high voltage or overvoltage to 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
Reach transformer neutral point, system single-phase earthing, open-phase operation, particularly static exciter inductance and line capacitance resonance
When, higher lightning surge or power-frequency overvoltage can be produced, graded insulated transformer neutrality is constituted a threat to, or even makes insulation
Damage, traditional overvoltage protection device capacitor is pressure to be extremely difficult to standard requirement, and resistance-capacitance overvoltage absorber is because it is to mistake
Voltage response speed is very fast, be not also able to do in time action when overvoltage have been reduced to below the operation voltage of protector, its result
It is that protector is difficult to work.
Content of the invention
The purpose of this utility model is to provide a kind of three phase combined over-voltage protector, to solve above-mentioned background technology
The problem of middle proposition, is had an advantageous effect in that；Voltge surge is little, and under various voltage waveforms, place value is all equal, no
Affected by various switching overvoltage waveforms, the accurate protective value of overvoltage protection value is excellent.
For achieving the above object, this utility model 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
At casing front end face top, below described controller, Current Display is installed, described observation window is provided with two, and sets respectively
Put, on the right side of the middle part of casing and bottom, described observation window, operation handle and electromagnetic lock are installed, and operation handle is arranged on electricity
Above magnetic padlock, described casing is fixed on anti-skid base, is provided with secondary meter room, described manipulator above described operation handle
On the left of handle, limiting fuse is installed, and limiting fuse is arranged on supports insulative, fixing above described limiting fuse
There is knocking gear, be fixed with overvoltage protection device matrix on the left of described vacuum contactor, on the left of described overvoltage protection device matrix
It is provided with ammeter, described voltage transformer is arranged on the left of ammeter, high-tension fuse, institute are installed above described ammeter
State and above high-tension fuse, be connected with disconnecting switch.
Preferably, described casing left surface is provided with wall bushing.
Preferably, below described limiting fuse, vacuum contactor is installed.
Preferably, above described secondary meter room, the little bus of cabinet top is installed.
Preferably, described disconnecting switch is arranged on below insulator, and insulator is fixed on casing top.
Compared with prior art, the beneficial effects of the utility model are：This equipment is non-linear using energy capacitance oxidization zinc greatly
Resistance and discharging gap combine, and both protect each other, and it is zero that discharging gap makes the chargeability of znr, oxygen
Change zinc nonlinear resistance makes no afterflow after discharging gap action again, and discharging gap no longer undertakes arc extinguishing task, long service life, basis
Utility model can make identical overvoltage be greatly reduced using four star connections, and identical overvoltage reduces compared with ordinary lightning rod
60% 70%, the reliability of protection greatly improves, and electric discharge instantaneous value is close with residual voltage, no ripple load, is conducive to protective winding type
The turn-to-turn insulation of equipment, employs the outer guiding structure of silastic material and high tension cable, have that easy to install, sealing is strong, small volume,
The advantages of vibration resistance, can be directly mounted on the handcart chassis of switch cubicle or transformer is indoor.
Brief description
Fig. 1 is external structure schematic diagram of the present utility model；
Fig. 2 is internal structure schematic diagram of the present utility model.
In figure：1- controller；2- Current Display；3- observation window；4- operation handle；5- electromagnetic lock；6- wall bushing；7-
Anti-skid base；8- casing；The little bus of 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.
Specific embodiment
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out
Clearly and completely description is it is clear that described embodiment is only a part of embodiment of this utility model rather than whole
Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under the premise of making creative work
The every other embodiment being obtained, broadly falls into the scope of this utility model protection.
Refer to Fig. 1 and Fig. 2, a kind of embodiment that this utility model 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, control
Device 1 is fixed on casing 8 front end face top, is provided with Current Display 2 below controller 1, and observation window 3 is provided with two, and point
It is not arranged on middle part and the bottom of casing 8, operation handle 4 and electromagnetic lock 5 are installed on the right side of observation window 3, and operation handle 4 is arranged
Above electromagnetic lock 5, casing 8 is fixed on anti-skid base 7, is provided with secondary meter room 10, operation handle above operation handle 4
Limiting fuse 12 is installed on the left of in the of 4, and limiting fuse 12 is arranged on supports insulative 13, limiting fuse 12 top is solid
Surely there is knocking gear 11, on the left of vacuum contactor 20, be fixed with overvoltage protection device matrix 19, overvoltage protection device matrix 19 is left
Side is provided with ammeter 18, and voltage transformer 17 is arranged on the left of ammeter 18, is provided with high-tension fuse above ammeter 18
16, it is connected with disconnecting switch 15 above high-tension fuse 16, casing 8 left surface is provided with wall bushing 6, under limiting fuse 12
Side is provided with vacuum contactor 20, is provided with the little bus of cabinet top 9, disconnecting switch 15 is arranged on insulator above secondary meter room 10
Below 14, 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, and disconnecting switch 15 connects
Logical, Current Display 2 shows current parameters, and voltage transformer 17 senses high-tension electricity, when electric current amount is larger, 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, it is zero that discharging gap makes the chargeability of ZnO resistors, and the nonlinear characteristic of zinc oxide makes discharging gap action again
Blow-out immediately afterwards.
It is obvious to a person skilled in the art that this utility model is not limited to the details of above-mentioned one exemplary embodiment, and
And in the case of without departing substantially from spirit or essential attributes of the present utility model, this practicality can be realized in other specific forms
New.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, this practicality
New scope limits by claims rather than described above, it is intended that the equivalency that will fall in claim
All changes in implication and scope are included in this utility model.Any reference in claim should not be considered as limiting
The involved claim of system.
Claims (5)
1. a kind of 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, is provided with Current Display (2) below described controller (1), described observation window (3) is provided with two, and
It is separately positioned on middle part and the bottom of casing (8), operation handle (4) and electromagnetic lock (5) are installed on the right side of described observation window (3),
And operation handle (4) is arranged on above electromagnetic lock (5), described casing (8) is fixed on anti-skid base (7), described operation handle
(4) it is provided with secondary meter room (10) above, on the left of described operation handle (4), limiting fuse (12) is installed, 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
It is fixed with overvoltage protection device matrix (19) on the left of vacuum contactor (20), arrange on the left of described overvoltage protection device matrix (19)
There is ammeter (18), described voltage transformer (17) is arranged on the left of ammeter (18), is provided with above described ammeter (18)
High-tension fuse (16), is connected with disconnecting switch (15) above described high-tension fuse (16).
2. a kind of three phase combined over-voltage protector according to claim 1 it is characterised in that：Described casing (8) is left
Side is provided with wall bushing (6).
3. a kind of three phase combined over-voltage protector according to claim 1 it is characterised in that：Described limiting fuse
(12) vacuum contactor (20) is installed below.
4. a kind of three phase combined over-voltage protector according to claim 1 it is characterised in that：Described secondary meter room
(10) the little bus of cabinet top (9) is installed above.
5. a kind of three phase combined over-voltage protector according to claim 1 it is characterised in that：Described disconnecting switch
(15) it is arranged on below insulator (14), and insulator (14) is fixed on casing (8) top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620968535.2U CN205945048U (en) | 2016-08-28 | 2016-08-28 | Three -phase combined type over -voltage protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620968535.2U CN205945048U (en) | 2016-08-28 | 2016-08-28 | Three -phase combined type over -voltage protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205945048U true CN205945048U (en) | 2017-02-08 |
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ID=57954684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620968535.2U Expired - Fee Related CN205945048U (en) | 2016-08-28 | 2016-08-28 | Three -phase combined type over -voltage protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205945048U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106129989A (en) * | 2016-08-28 | 2016-11-16 | 安徽普天电力科技有限公司 | A kind of three phase combined over-voltage protector |
-
2016
- 2016-08-28 CN CN201620968535.2U patent/CN205945048U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106129989A (en) * | 2016-08-28 | 2016-11-16 | 安徽普天电力科技有限公司 | A kind of three phase combined over-voltage protector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20170208 Termination date: 20190828 |