CN205646795U - Intelligence PT cabinet - Google Patents
Intelligence PT cabinet Download PDFInfo
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- CN205646795U CN205646795U CN201620109234.4U CN201620109234U CN205646795U CN 205646795 U CN205646795 U CN 205646795U CN 201620109234 U CN201620109234 U CN 201620109234U CN 205646795 U CN205646795 U CN 205646795U
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- cabinet
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Abstract
The utility model discloses an intelligence PT cabinet, the wall bushing is installed on cabinet body upper strata, supporting insulator fixes on the wall bushing, be two cavities in the internal part of cabinet, the wall bushing links to each other with isolator, isolator links to each other with two sets of circuits respectively, going the same way that isolator is middle and upper is connected with the high voltage live sensor, high voltage current limiting fuse links to each other with the high voltage live sensor, isolator another last way links to each other with the PT fuse, voltage transformer links to each other with the PT fuse, a harmonic elimination ware, intelligence momentary switch, the peak surge absorber links to each other with voltage transformer. The utility model discloses can carry out incessant monitoring to phenomenons such as PT broken string, excessive pressure, under -voltage, low -voltage, resonance, arc light ground connection, the trouble condition of system is judged to the accuracy to carry out accurate analysis to the system, show failure classes do not, promptly handle the system, working space in the reduction PT cabinet endured voltage generation's huge energy, protection production safety and work demand.
Description
Technical field
This utility model belongs to Overvoltage suppressing technical field, particularly relates to a kind of intelligence PT cabinet.
Background technology
There is following several overvoltage in China 3～35KV system: the atmospheric over-voltage that produces when the arc overvoltage produced when switching overvoltage that chopper on-off action process produces, single-phase earthing and thunderbolt, resonance overvoltage etc..There is no the complete preservation scheme for these overvoltage at present, the accident such as often occur cable to blow out, motor insulation breakdown, Explosion of on Arrester and voltage transformer burn.The reason that this type of accident occurs; except with in addition in system, the performance of overvoltage protection device product of installing has relation; the complexity of system itself has important impact to overvoltage; for different systems, need when using overvoltage protection product to consider the type on system power line road, the network structure of electric line, the character of load and the earthing mode etc. of system.Once simultaneously, in complicated system, it is difficult to isolated use certain or several overvoltage protection suppress various comprehensively
The overvoltage of type system, protective value can not match each other simultaneously, it is impossible to suppression system overvoltage the most effectively.
Summary of the invention
For solving the problems referred to above; the utility model discloses a kind of intelligence PT cabinet; can break for PT, overvoltage, the phenomenon such as under-voltage, low-voltage, resonance, arc grounding carry out continual monitoring, it is possible to be accurately judged to the failure condition of system, and can accurately analyze system; display fault category; system is carried out emergent management, the work space in reduction PT cabinet, the huge energy that tolerance overvoltage produces; protection production safety and work requirements, it is to avoid personnel are radiated by overvoltage.
nullIn order to reach object above，This utility model following technical scheme of offer: a kind of intelligence PT cabinet，Including cabinet，Including wall bushing、Overvoltage controller、Supports insulative、Disconnecting switch、PT fuse、Intelligence instant shut-in、Voltage transformer、Resonance eliminator、High-voltage and current-limitation fuse、Peak overvoltage absorber、Electrification in high voltage sensor，Cabinet upper strata is provided with wall bushing，Supports insulative is fixed on wall bushing，Two chambers it are divided into inside cabinet，Wall bushing is connected with disconnecting switch，Disconnecting switch is connected with two groups of circuits respectively，Disconnecting switch Shang mono-tunnel connects electrification in high voltage sensor，High-voltage and current-limitation fuse is connected with electrification in high voltage sensor，Another road in disconnecting switch is connected with PT fuse，Voltage transformer is connected with PT fuse，Resonance eliminator、Intelligence instant shut-in、Peak overvoltage absorber is connected with voltage transformer respectively.
As a kind of preferred version of the present utility model, a described resonance eliminator, voltage transformer, peak overvoltage absorber are provided with ground path.
As a kind of preferred version of the present utility model, a described resonance eliminator is in parallel with voltage transformer.
As a kind of preferred version of the present utility model, described cabinet being provided with some supports insulative, described supports insulative is suitable with wall bushing.
Compared with prior art; the beneficial effect that this utility model possesses: can the rising front of effectively mild overvoltage scabble due to voltage spikes by peak overvoltage absorber; and it is resistant to the super large energy that overvoltage produces; the dead band that can eliminate overvoltage protection of overvoltage protection simultaneously; and by voltage transformer overvoltage can be acquired and judge; in addition; the resonance eliminator being arranged on bottom is in parallel with intelligence instant shut-in; substantial amounts of system overvoltage can be absorbed, escort for safety in production.
Accompanying drawing explanation
Fig. 1 is the structural representation of intelligence PT cabinet.
Reference numerals list: 1 one wall bushings, 2 one supports insulative, 3 one disconnecting switch, 4 one electrification in high voltage sensors, 5 one high-voltage and current-limitation fuses, 6-PT fuse, 7 one voltage transformers, 8--resonance eliminator, 9 one intelligence instant shut-in, IO-peak overvoltage absorber, II-cabinet, 12-overvoltage controllers.
Detailed description of the invention
Below in conjunction with the accompanying drawings and detailed description of the invention, it is further elucidated with this utility model, it should be understood that following detailed description of the invention is merely to illustrate this utility model rather than limits scope of the present utility model.It should be noted that the word "front", "rear" used in describing below, "left", "right", "up" and "down" refer to the direction in accompanying drawing, word " interior " and " outward " refer respectively to the direction towards or away from particular elements geometric center.
nullAs shown in Figure 1～plant intelligence PT cabinet，Including cabinet 11，Cabinet inner top is provided with wall bushing 1，Overvoltage controller 12 it is additionally provided with in cabinet 11、Supports insulative 2、Disconnecting switch 3、PT fuse 6、Intelligence instant shut-in 9、Voltage transformer 7、Resonance eliminator 8、High-voltage and current-limitation fuse 5、Peak overvoltage absorber 10、Electrification in high voltage sensor 4，Described upper strata is provided with wall bushing 1，Described supports insulative 2 is fixed on wall bushing 1，It is divided into two chambers in cabinet 11 singultus，Wall bushing 1 is connected with disconnecting switch 3，Disconnecting switch 3 is connected with two groups of circuits respectively，In disconnecting switch 3, Shang mono-tunnel connects electrification in high voltage sensor 4，Described high-voltage and current-limitation fuse 5 is connected with electrification in high voltage sensor 4，Another road in disconnecting switch 3 is connected with PT fuse 6，Described voltage transformer 7 is connected with PT fuse 6，Resonance eliminator 8、Intelligence instant shut-in 9、Peak overvoltage absorber 10 is connected with voltage transformer 7 respectively，Resonance eliminator 8、
Voltage transformer 7, peak overvoltage absorber 10 are provided with ground path, and one time resonance eliminator 8 is in parallel with voltage transformer 7, and cabinet 11 is provided with some supports insulative 2, and described supports insulative son 2 is suitable with wall bushing 1.
When there is the phenomenons such as PT broken string, overvoltage, under-voltage, low-voltage, resonance, arc grounding, PT suit through walls cashier's office in a shop ensure that the stability of cabinet 11, and supports insulative 2 ensures the insulating properties of cabinet 11 and body of wall simultaneously.Simultaneously, putting into operation and releasing on device is controlled by disconnecting switch 3, main switch as device, carrying out the cut-off point of PT cabinet, it is possible to aid-device overhauls and debugs, the two lines road being simultaneously connected with forms parallel connection, on the one hand by electrification in high voltage sensor 4, voltage can be measured, when voltage exceedes required numerical value, high-voltage and current-limitation fuse 5 will fuse automatically, it is to avoid voltage is excessive causes overload phenomenon to occur.Meanwhile; another circuit connects and has intelligent instant shut-in 9; connect on intelligence instant shut-in 9 and have voltage transformer 7; a resonance eliminator 8 it is parallel with on voltage transformer 7; can provide by the secondary voltage of protection system and auxiliary secondary voltage signal for device, also can avoid ferromagnetic resonance, peak overvoltage absorber 10 connected in parallel is special overvoltage protection simultaneously; can over-voltage suppression spike, overvoltage spike is limited in the reduced levels of apparatus insulated permission.
Technological means disclosed in this utility model scheme is not limited only to the technological means disclosed in above-mentioned embodiment, also includes the technical scheme being made up of above technical characteristic combination in any.It should be pointed out that, for those skilled in the art, on the premise of without departing from this utility model principle, it is also possible to make some improvements and modifications, these improvements and modifications are also considered as protection domain of the present utility model.
Claims (4)
- null1. an intelligent PT cabinet，Including cabinet，It is characterized in that: include wall bushing、Overvoltage controller、Supports insulative、Disconnecting switch、PT fuse、Intelligence instant shut-in、Voltage transformer、Resonance eliminator、High-voltage and current-limitation fuse、Peak overvoltage absorber、Electrification in high voltage sensor，Cabinet upper strata is provided with wall bushing，Described supports insulative is fixed on wall bushing，Two chambers it are divided into inside cabinet，Wall bushing is connected with disconnecting switch，Disconnecting switch is connected with two groups of circuits respectively，Disconnecting switch Shang mono-tunnel connects electrification in high voltage sensor，Described high-voltage and current-limitation fuse is connected with electrification in high voltage sensor，Another road in disconnecting switch is connected with PT fuse，Described voltage transformer is connected with PT fuse，Resonance eliminator、Intelligence instant shut-in、Peak overvoltage absorber is connected with voltage transformer respectively.
- Intelligence PT cabinet the most according to claim 1, it is characterised in that: a described resonance eliminator, voltage transformer, peak overvoltage absorber are provided with ground path.
- Intelligence PT cabinet the most according to claim 1 and 2, it is characterised in that: a described resonance eliminator is in parallel with voltage transformer.
- Intelligence PT cabinet the most according to claim 1, it is characterised in that: being provided with some supports insulative on described cabinet, described supports insulative is suitable with wall bushing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620109234.4U CN205646795U (en) | 2016-02-03 | 2016-02-03 | Intelligence PT cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620109234.4U CN205646795U (en) | 2016-02-03 | 2016-02-03 | Intelligence PT cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205646795U true CN205646795U (en) | 2016-10-12 |
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ID=57079465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620109234.4U Expired - Fee Related CN205646795U (en) | 2016-02-03 | 2016-02-03 | Intelligence PT cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205646795U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107623279A (en) * | 2017-10-17 | 2018-01-23 | 杭州世创电子技术股份有限公司 | A kind of gas-insulated ring network cabinet metal enclosed switchgear |
-
2016
- 2016-02-03 CN CN201620109234.4U patent/CN205646795U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107623279A (en) * | 2017-10-17 | 2018-01-23 | 杭州世创电子技术股份有限公司 | A kind of gas-insulated ring network cabinet metal enclosed switchgear |
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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 |
Granted publication date: 20161012 Termination date: 20180203 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |