CN104167722A - Overvoltage inhibition cabinet - Google Patents
Overvoltage inhibition cabinet Download PDFInfo
- Publication number
- CN104167722A CN104167722A CN201410367106.5A CN201410367106A CN104167722A CN 104167722 A CN104167722 A CN 104167722A CN 201410367106 A CN201410367106 A CN 201410367106A CN 104167722 A CN104167722 A CN 104167722A
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- overvoltage
- fuse
- cabinet
- cabinet door
- ptk
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Abstract
The invention discloses an overvoltage inhibition cabinet, and relates to the technical field of electric power. An instrument chamber is arranged below a brow and is provided with a controller, a voltmeter and a manipulator; the rear side of the instrument chamber is provided with a bus chamber; the side wall of the bus chamber is provided with a wall feed-through sleeve; a handcart is arranged below the instrument chamber, is connected with a support insulator in the bus chamber and is also connected with a PT fuse; the PT fuse is arranged on a PT fuse beam and is connected with a voltage transformer; one side of the voltage transformer is provided with an intelligent instantaneous switch PTK and an overvoltage absorber; the intelligent instantaneous switch PTK is provided with a primary harmonic eliminator; the overvoltage absorber is connected with a high-voltage electric sensor; a cabinet door at the front side and the rear side of the inhibition cabinet is provided with an observation window; the cabinet door below the front side and the rear side is provided with an electromagnetic lock; and the cabinet door below the front side is also provided with an illumination lamp. According to the invention, the overvoltage inhibition cabinet can make up for the defects of overvoltage protection elements and devices in a system and improves the overvoltage integrated protection level of the system.
Description
Technical field
What the present invention relates to is power technology field, is specifically related to a kind of overvoltage suppression cabinet.
Background technology
In China's 3-35kV system particularly, mostly adopt neutral non-effective grounding mode, its overvoltage level is very high, and in system, most faults all have relation with overvoltage, and the loss causing because of Overvoltage is every year very huge.The integrated protection scheme of at present carrying out system for these overvoltage seldom; and the actual device that can really play good action is few in number especially; all that several overvoltage protections are pieced together mostly; but because properties of product can not finely be mated, cannot thoroughly effectively solve system overvoltage.
Summary of the invention
For the deficiency existing in prior art, the present invention seeks to be to provide a kind of overvoltage suppression cabinet, can make up the deficiency of overvoltage protection element and device in system, promoted the overvoltage integrated protection level of system.
To achieve these goals, the present invention realizes by the following technical solutions: overvoltage suppression cabinet, comprises wall bushing, controller, observation window, brows, voltmeter, control device, electromagnetic lock, counter, a resonance eliminator, illuminating lamp, electrification in high voltage transducer, supporting insulator, handcart, PT fuse, surge absorber, voltage transformer, PT fuse beam and intelligent instant shut-in PTK, brows below is provided with control room, is provided with controller in control room, voltmeter, control device, control room's rear side is provided with bus-bar room, bus-bar room sidewall is provided with wall bushing, below, control room is provided with handcart, handcart is connected with the supporting insulator in bus-bar room, handcart is also connected with PT fuse, PT fuse is arranged on PT fuse beam, PT fuse is connected with voltage transformer, voltage transformer one side is provided with intelligent instant shut-in PTK and surge absorber, on intelligence instant shut-in PTK, be provided with resonance eliminator one time, surge absorber is connected with electrification in high voltage transducer, on the front and back side cabinet door of inhibition cabinet, be provided with observation window, on the cabinet door of front and back side-lower, be provided with electromagnetic lock, on the cabinet door of below, front side, be also provided with illuminating lamp, on the cabinet door of rear side below, be also provided with counter.
As preferably, described surge absorber adopts zinc oxide valve plate.
Beneficial effect of the present invention: can effectively suppress peak overvoltage; this overvoltage protection device adopts special zinc oxide valve plate simultaneously; can greatly reduce residual voltage value; not only residual voltage is low; and have very huge can capacity; a large amount of energy absorption that system overvoltage can be produced are fallen, and have effectively guaranteed the insulation safety of device.The use of this technology; except eliminating switching overvoltage and atmospheric over-voltage; without coordinating with extinguishing arc and harmonic elimination apparatus, in elimination system simultaneously, be difficult to ensure the resonance overvoltage that protects and grounding surge etc. most, there is the not available characteristic of other overvoltage protections.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, describe the present invention in detail;
Fig. 1 is structural representation of the present invention;
Fig. 2 is internal structure schematic diagram of the present invention;
Fig. 3 is the structure schematic diagram of Fig. 1;
Fig. 4 is electrical schematic diagram of the present invention.
Embodiment
For technological means, creation characteristic that the present invention is realized, reach object and effect is easy to understand, below in conjunction with embodiment, further set forth the present invention.
With reference to Fig. 1-4, this embodiment by the following technical solutions: overvoltage suppression cabinet, comprises wall bushing 1, controller 2, observation window 3, brows 4, voltmeter 5, control device 6, electromagnetic lock 7, counter 8, a resonance eliminator 9, illuminating lamp 10, electrification in high voltage transducer 11, supporting insulator 12, handcart 13, PT fuse 14, surge absorber 15, voltage transformer 16, PT fuse beam 17 and intelligent instant shut-in PTK18, brows 4 belows are provided with control room, are provided with controller 2 in control room, voltmeter 5, control device 6, control room's rear side is provided with bus-bar room, bus-bar room sidewall is provided with wall bushing 1, below, control room is provided with handcart 13, handcart 13 is connected with the supporting insulator 12 in bus-bar room, handcart 13 is also connected with PT fuse 14, PT fuse 14 is arranged on PT fuse beam 17, PT fuse 14 is connected with voltage transformer 16, voltage transformer 16 1 sides are provided with intelligent instant shut-in PTK18 and surge absorber 15, on intelligence instant shut-in PTK18, be provided with resonance eliminator 9 one time, surge absorber 15 is connected with electrification in high voltage transducer 11, on the front and back side cabinet door of inhibition cabinet, be provided with observation window 3, on the cabinet door of front and back side-lower, be provided with electromagnetic lock 7, on the cabinet door of below, front side, be also provided with illuminating lamp 10, on the cabinet door of rear side below, be also provided with counter 8.
It should be noted that described surge absorber 15 adopts zinc oxide valve plate.
The overvoltage suppression cabinet of this embodiment is according to the secondary voltage of PT, judgement primary system ruuning situation, as system generation resonance, output contact signal is opened intelligent instant shut-in PTK, if now resonance can't be eliminated, start its inside and contain secondary harmonic elimination function, meanwhile, after PTK opens, neutral point of PT with a resonance eliminator work when the resonance, eliminate system resonance, as still do not eliminated resonance, repeat said process.
Surge absorber is a kind of powerful overvoltage protection device; can effectively suppress peak overvoltage; this overvoltage protection device adopts special zinc oxide valve plate simultaneously; can greatly reduce residual voltage value; not only residual voltage is low; and thering is very huge energy capacity, a large amount of energy absorption that system overvoltage can be produced are fallen, and have effectively guaranteed the insulation safety of device.
Intelligence instant shut-in PTK: while normally moving, PTK is in "on" position, a neutral-point solid ground of PT, when there is resonance, PTK opens, and will connect and enter in the primary circuit of PT with a resonance eliminator of its parallel connection, and earth impedance of PT is strengthened, PT primary current reduces, and reaches the effect of harmonic elimination.
A resonance eliminator: when PTK opens, harmonic elimination in the situation of voltage transformer generation resonance.
This embodiment can effectively suppress peak overvoltage; this overvoltage protection device adopts special zinc oxide valve plate simultaneously; can greatly reduce residual voltage value; not only residual voltage is low; and have very huge can capacity; a large amount of energy absorption that system overvoltage can be produced are fallen, and have effectively guaranteed the insulation safety of device.The use of this technology; except eliminating switching overvoltage and atmospheric over-voltage; without coordinating with extinguishing arc and harmonic elimination apparatus, in elimination system simultaneously, be difficult to ensure the resonance overvoltage that protects and grounding surge etc. most, there is the not available characteristic of other overvoltage protections.
More than show and described basic principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and specification, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (2)
1. overvoltage suppression cabinet, is characterized in that, comprises wall bushing (1), controller (2), observation window (3), brows (4), voltmeter (5), control device (6), electromagnetic lock (7), counter (8), a resonance eliminator (9), illuminating lamp (10), electrification in high voltage transducer (11), supporting insulator (12), handcart (13), PT fuse (14), surge absorber (15), voltage transformer (16), PT fuse beam (17) and intelligent instant shut-in PTK (18), brows (4) below is provided with control room, is provided with controller (2) in control room, voltmeter (5), control device (6), control room's rear side is provided with bus-bar room, bus-bar room sidewall is provided with wall bushing (1), below, control room is provided with handcart (13), handcart (13) is connected with the supporting insulator (12) in bus-bar room, handcart (13) is also connected with PT fuse (14), PT fuse (14) is arranged on PT fuse beam (17), PT fuse (14) is connected with voltage transformer (16), voltage transformer (16) one sides are provided with intelligent instant shut-in PTK (18) and surge absorber (15), on intelligence instant shut-in PTK (18), be provided with a resonance eliminator (9), surge absorber (15) is connected with electrification in high voltage transducer (11), on the front and back side cabinet door of inhibition cabinet, be provided with observation window (3), on the cabinet door of front and back side-lower, be provided with electromagnetic lock (7), on the cabinet door of below, front side, be also provided with illuminating lamp (10), on the cabinet door of rear side below, be also provided with counter (8).
2. overvoltage suppression cabinet according to claim 1, is characterized in that, described surge absorber (15) adopts zinc oxide valve plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410367106.5A CN104167722A (en) | 2014-07-30 | 2014-07-30 | Overvoltage inhibition cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410367106.5A CN104167722A (en) | 2014-07-30 | 2014-07-30 | Overvoltage inhibition cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104167722A true CN104167722A (en) | 2014-11-26 |
Family
ID=51911431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410367106.5A Pending CN104167722A (en) | 2014-07-30 | 2014-07-30 | Overvoltage inhibition cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104167722A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107453340A (en) * | 2017-07-03 | 2017-12-08 | 安徽恒凯电力保护设备有限公司 | A kind of Intelligent arc extinguishing resonance elimination overvoltage suppression cabinet |
| CN107834529A (en) * | 2017-11-20 | 2018-03-23 | 安徽晓星能源科技有限公司 | A kind of overvoltage monitoring device suppresses the protection device of cabinet |
-
2014
- 2014-07-30 CN CN201410367106.5A patent/CN104167722A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107453340A (en) * | 2017-07-03 | 2017-12-08 | 安徽恒凯电力保护设备有限公司 | A kind of Intelligent arc extinguishing resonance elimination overvoltage suppression cabinet |
| CN107834529A (en) * | 2017-11-20 | 2018-03-23 | 安徽晓星能源科技有限公司 | A kind of overvoltage monitoring device suppresses the protection device of cabinet |
| CN107834529B (en) * | 2017-11-20 | 2019-03-29 | 安徽晓星能源科技有限公司 | A kind of overvoltage monitoring device inhibits the protective device of cabinet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141126 |
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| WD01 | Invention patent application deemed withdrawn after publication |