CN205544200U - Overvoltage suppressing cabinet - Google Patents
Overvoltage suppressing cabinet Download PDFInfo
- Publication number
- CN205544200U CN205544200U CN201620109233.XU CN201620109233U CN205544200U CN 205544200 U CN205544200 U CN 205544200U CN 201620109233 U CN201620109233 U CN 201620109233U CN 205544200 U CN205544200 U CN 205544200U
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- China
- Prior art keywords
- voltage
- fuse
- overvoltage
- high voltage
- cabinet
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Abstract
The utility model discloses an overvoltage suppressing cabinet, microprocessor link to each other with isolator, PT fuse, voltage transformer, harmonic elimination ware, high voltage current limiting fuse, peak surge absorber, a high voltage live sensor respectively, and isolator links to each other with peak surge absorber, voltage transformer respectively, and the high voltage live sensor links to each other with PT fuse, harmonic elimination ware and high voltage current limiting fuse respectively. The utility model discloses can be directed against phenomenons such as PT broken string, excessive pressure, under -voltage, low -voltage, resonance, arc light ground connection and carry out incessant monitoring, can accurately judge the trouble condition of system to can carry out accurate analysis to the system, show failure classes do not, promptly handle the system, realize can carrying out remote communication simultaneously by quick action according to the different frequency of system resonance, realize data fast transmission.
Description
Technical field
This utility model belongs to voltage protection field, particularly relates to a kind of overvoltage suppression 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 the overvoltage of all kinds system comprehensively, and 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 overvoltage suppression cabinet, can break for PT, overvoltage, the phenomenon such as under-voltage, low-voltage, resonance, arc grounding carry out continual monitoring, the failure condition of system can be accurately judged to, and system accurately can be analyzed, show fault category, system is carried out emergent management, realize quick acting according to system resonance different frequency, telecommunication can be carried out, it is achieved data are quickly transmitted simultaneously.
In order to reach object above, this utility model following technical scheme of offer: a kind of overvoltage suppression cabinet, including cabinet, microprocessor is included in cabinet, disconnecting switch, PT fuse, voltage transformer, resonance eliminator, high-voltage and current-limitation fuse, peak overvoltage absorber, electrification in high voltage sensor, microprocessor respectively with disconnecting switch, PT fuse, voltage transformer, resonance eliminator, high-voltage and current-limitation fuse, peak overvoltage absorber, electrification in high voltage sensor is connected, disconnecting switch respectively with peak overvoltage absorber, voltage transformer is connected, electrification in high voltage sensor respectively with PT fuse, one time resonance eliminator is connected with high-voltage and current-limitation fuse.
As a kind of preferred version of the present utility model, described disconnecting switch is connected with high-voltage and current-limitation fuse.
As a kind of preferred version of the present utility model, described voltage transformer is in series with high-voltage and current-limitation fuse, PT fuse.
As a kind of preferred version of the present utility model, described microprocessor is additionally provided with the external communication interface of CAN.
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, find out fault key point and Long-range Data Transmission can be realized by RS485 communication interface.
Accompanying drawing explanation
Fig. 1 is the structural representation of overvoltage suppression cabinet.
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.
nullA kind of overvoltage suppression cabinet as shown in Figure 1，Including cabinet，Microprocessor is included in cabinet、Disconnecting switch、PT fuse、Voltage transformer、Resonance eliminator、High-voltage and current-limitation fuse、Peak overvoltage absorber、Electrification in high voltage sensor，Microprocessor respectively with disconnecting switch、PT fuse、Voltage transformer、Resonance eliminator、High-voltage and current-limitation fuse、Peak overvoltage absorber、Electrification in high voltage sensor is connected，Disconnecting switch respectively with peak overvoltage absorber、Voltage transformer is connected，Electrification in high voltage sensor respectively with PT fuse、One time resonance eliminator is connected with high-voltage and current-limitation fuse，Microprocessor respectively with voltage transformer、One time resonance eliminator is connected with disconnecting switch，High-voltage signal can be separated into the three-phase voltage signal that can individually detect by voltage transformer，Disconnecting switch is connected with high-voltage and current-limitation fuse，Voltage transformer and high-voltage and current-limitation fuse、PT fuse is in series，The external communication interface of CAN it is additionally provided with on microprocessor.
nullWhen overvoltage suppression cabinet carries out properly functioning，Microprocessor within cabinet continual can carry out voltage acquisition instruction，Threshold ratio is carried out relatively according to the data that electrification in high voltage sensor is replied，Can interpolate that out that generation PT breaks、Overvoltage、Under-voltage、Low-voltage、Resonance、The generation of the phenomenons such as arc grounding，And by PT fuse、High-voltage and current-limitation fuse、The situation occurred is processed by the devices such as peak overvoltage absorber，When exceeding threshold value tolerance range，Disconnecting switch will be switched off voltage connection status，System is avoided to be caused system crash by excessive voltage compressing，Overvoltage suppression cabinet also uses special zinc oxide valve plate，Residual voltage value can be substantially reduced，Not only reduce residual voltage，Also there is huge capacity protection whole system run，Voltage transformer and a resonance eliminator can be protected the secondary voltage of system and assist secondary voltage signal，Avoid ferromagnetic resonance to the full extent.
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)
1. an overvoltage suppression cabinet, including cabinet, it is characterized in that: in described cabinet, include microprocessor, disconnecting switch, PT fuse, voltage transformer, resonance eliminator, high-voltage and current-limitation fuse, peak overvoltage absorber, electrification in high voltage sensor, described microprocessor respectively with disconnecting switch, PT fuse, voltage transformer, resonance eliminator, high-voltage and current-limitation fuse, peak overvoltage absorber, electrification in high voltage sensor is connected, described disconnecting switch respectively with peak overvoltage absorber, voltage transformer is connected, described electrification in high voltage sensor respectively with PT fuse, one time resonance eliminator is connected with high-voltage and current-limitation fuse.
Overvoltage suppression cabinet the most according to claim 1, it is characterised in that: described disconnecting switch is connected with high-voltage and current-limitation fuse.
Overvoltage suppression cabinet the most according to claim 1, it is characterised in that: described voltage transformer is in series with high-voltage and current-limitation fuse, PT fuse.
Overvoltage suppression cabinet the most according to claim 1, it is characterised in that: it is additionally provided with the external communication interface of CAN on described microprocessor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620109233.XU CN205544200U (en) | 2016-02-03 | 2016-02-03 | Overvoltage suppressing cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620109233.XU CN205544200U (en) | 2016-02-03 | 2016-02-03 | Overvoltage suppressing cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205544200U true CN205544200U (en) | 2016-08-31 |
Family
ID=56776642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620109233.XU Expired - Fee Related CN205544200U (en) | 2016-02-03 | 2016-02-03 | Overvoltage suppressing cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205544200U (en) |
-
2016
- 2016-02-03 CN CN201620109233.XU patent/CN205544200U/en not_active Expired - Fee Related
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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: 20160831 Termination date: 20170203 |