CN201821032U - Overvoltage suppression cabinet - Google Patents
Overvoltage suppression cabinet Download PDFInfo
- Publication number
- CN201821032U CN201821032U CN2010205786499U CN201020578649U CN201821032U CN 201821032 U CN201821032 U CN 201821032U CN 2010205786499 U CN2010205786499 U CN 2010205786499U CN 201020578649 U CN201020578649 U CN 201020578649U CN 201821032 U CN201821032 U CN 201821032U
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- Prior art keywords
- circuit breaker
- room
- overvoltage
- voltage
- cabinet
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses an overvoltage suppression cabinet relating to voltage protection devices, wherein an instrument room is arranged below the brow of the cabinet and provided with a microcomputer intelligent control device, a high-voltage electriferous display, a voltmeter and a change-over switch; the rear side of the instrument room is provided with a bus room; the side wall of the bus room is provided with a penetration sleeve; the bus room is connected with a circuit breaker handcart which is arranged below the instrument room; the external cabinet door of the circuit breaker handcart is provided with a primary simulation plate, an observation window and a circuit breaker crank hole; the cabinet door below the circuit breaker crank hole is provided with a device name plate; a voltage transformer is arranged below the circuit breaker handcart and connected with a PT fuse and an overvoltage protector respectively; and the circuit on the PT fuse is provided with a high-voltage electriferous sensor and the circuit breaker handcart. The overvoltage suppression cabinet can suppress all kinds of overvoltage in the power grid, and improve the power grid running safety and power supply reliability.
Description
Technical field:
The utility model relates to a kind of voltage protection, relates in particular to a kind of overvoltage and suppresses cabinet.
Background technology:
Have following several overvoltage in China 3-35kv system: the arc light that produces when atmospheric over-voltage that the resonance overvoltage that the switching overvoltage that produces in the circuit breaker course of action, capacity cell and nonlinear inductance produce under certain condition, when thunderbolt produce and single-phase earthing is flashed back past events etc.At present still needleless to these superpotential complete protection schemes, thereby produce that cable is blown out, accident such as motor insulation breakdown, Explosion of on Arrester and voltage transformer burn.The reason that this type of accident takes place; except with system in outside the Pass the performance of the overvoltage protection installed has; the complexity of system itself is to the selection important influence of voltage device; for different systems; need the type of taking into account system transmission line when selecting overvoltage protection; the network configuration of electric line, the character of load and earthing mode of system or the like.
System at complexity like this; the use that is difficult to isolate certain or certain several overvoltage protection suppress various types of systems overvoltage comprehensively; and the overvoltage protection product that these different manufacturers are produced; because of protective feature can not be mated mutually, and can't thoroughly effectively suppress system's overvoltage.
The utility model content:
The purpose of this utility model provides a kind of overvoltage and suppresses cabinet, and it can limit the various overvoltage that occur in the electrical network, can improve the reliability of the fail safe and the power supply of operation of power networks.
In order to solve the existing problem of background technology; the utility model is by the following technical solutions: it is by brows; the microcomputer-based intelligent control device; wall bushing; high-voltage charge display device; once simulate board; observation window; the circuit breaker crank way; the device nameplate; voltmeter; change over switch; the control room; bus-bar room; circuit breaker cart; the electrification in high voltage transducer; the PT fuse; overvoltage protection device and voltage transformer are formed; the brows below is provided with the control room; the control room is provided with the microcomputer-based intelligent control device; high-voltage charge display device; voltmeter and change over switch; control room's rear side is provided with bus-bar room; the bus-bar room sidewall is provided with wall bushing; bus-bar room links to each other with circuit breaker cart; circuit breaker cart is arranged on the below of control room; circuit breaker cart outer cabinet door is provided with once simulates board; observation window and circuit breaker crank way; the cabinet door of circuit breaker crank way below is provided with the device nameplate; the circuit breaker cart below is provided with voltage transformer; voltage transformer links to each other with overvoltage protection device with the PT fuse respectively, and the circuit on the PT fuse is provided with the electrification in high voltage transducer and links to each other with circuit breaker cart.
The utility model is when normal operation, the voltage signal that the real-time continual detection PT of intelligent microcomputer device provides in the cabinet, in case phenomenons such as PT broken string, overvoltage, under-voltage, low-voltage, resonance, arc grounding take place, the data-handling capacity realization Fourier analysis that the intelligence microcomputer device utilizes the DSP high speed, repeats, gather, judge by secondary overvoltage voltage transformer pt, timely and accurately the various states of system are analyzed, judge the failure condition of system, and demonstration fault category, output is the amount of opening the light contact point signal accordingly, is used for reporting to the police.Utilize the powerful logical operation capability of MCU to realize liquid crystal display fast, functions such as telecommunication and verse protection simultaneously.
When resonance appears in system, suppress cabinet intelligence microcomputer and realize quick acting according to the different frequency of system resonance, output is the amount of opening the light contact accordingly, is used for reporting to the police, and realizes liquid crystal display fast.
Suppress cabinet and have the RS485 interface, be furnished with the Modbus communication protocol of standard, realize that with user's Computerized monitor system data telecommunication and data transmit.
The utility model can effectively mild superpotential rising front and is scabbled due to voltage spikes, and can tolerate the super large energy that overvoltage produces, and the various overvoltage that occur in the electrical network are limited, and can improve the reliability of the fail safe and the power supply of operation of power networks.
Description of drawings:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the left view of Fig. 1.
Embodiment:
With reference to Fig. 1-2; this embodiment is by the following technical solutions: it is by brows 1; microcomputer-based intelligent control device 2; wall bushing 3; high-voltage charge display device 4; once simulate board 5; observation window 6; circuit breaker crank way 7; device nameplate 8; voltmeter 9; change over switch 10; control room 11; bus-bar room 12; circuit breaker cart 13; electrification in high voltage transducer 14; PT fuse 15; overvoltage protection device 16 and voltage transformer 17 are formed; brows 1 below is provided with control room 11; control room 11 is provided with microcomputer-based intelligent control device 2; high-voltage charge display device 4; voltmeter 9 and change over switch 10; control room's 11 rear sides are provided with bus-bar room 12; bus-bar room 12 sidewalls are provided with wall bushing 3; bus-bar room 12 links to each other with circuit breaker cart 13; circuit breaker cart 13 is arranged on the below of control room 11; circuit breaker cart 13 outer cabinet doors are provided with once simulates board 5; observation window 6 and circuit breaker crank way 7; the cabinet door of circuit breaker crank way 7 belows is provided with device nameplate 8; circuit breaker cart 13 belows are provided with voltage transformer 17; voltage transformer 17 links to each other with overvoltage protection device 16 with PT fuse 15 respectively, and the circuit on the PT fuse 15 is provided with electrification in high voltage transducer 14 and links to each other with circuit breaker cart 13.
This embodiment is when normal operation, the voltage signal that the real-time continual detection PT of intelligent microcomputer device provides in the cabinet, in case phenomenons such as PT broken string, overvoltage, under-voltage, low-voltage, resonance, arc grounding take place, the data-handling capacity realization Fourier analysis that the intelligence microcomputer device utilizes the DSP high speed, repeats, gather, judge by secondary overvoltage voltage transformer pt, timely and accurately the various states of system are analyzed, judge the failure condition of system, and demonstration fault category, output is the amount of opening the light contact point signal accordingly, is used for reporting to the police.Utilize the powerful logical operation capability of MCU to realize liquid crystal display fast, functions such as telecommunication and verse protection simultaneously.
When resonance appears in system, suppress cabinet intelligence microcomputer and realize quick acting according to the different frequency of system resonance, output is the amount of opening the light contact accordingly, is used for reporting to the police, and realizes liquid crystal display fast.
Suppress cabinet and have the RS485 interface, be furnished with the Modbus communication protocol of standard, realize that with user's Computerized monitor system data telecommunication and data transmit.
This embodiment can effectively mild superpotential rising front and is scabbled due to voltage spikes, and can tolerate the super large energy that overvoltage produces, and the various overvoltage that occur in the electrical network are limited, and can improve the reliability of the fail safe and the power supply of operation of power networks.
More than show and described basic principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (1)
1. overvoltage suppresses cabinet; it is characterized in that it is by brows (1); microcomputer-based intelligent control device (2); wall bushing (3); high-voltage charge display device (4); once simulate board (5); observation window (6); circuit breaker crank way (7); device nameplate (8); voltmeter (9); change over switch (10); control room (11); bus-bar room (12); circuit breaker cart (13); electrification in high voltage transducer (14); PT fuse (15); overvoltage protection device (16) and voltage transformer (17) are formed; brows (1) below is provided with control room (11); control room (11) is provided with microcomputer-based intelligent control device (2); high-voltage charge display device (4); voltmeter (9) and change over switch (10); control room (11) rear side is provided with bus-bar room (12); bus-bar room (12) sidewall is provided with wall bushing (3); bus-bar room (12) links to each other with circuit breaker cart (13); circuit breaker cart (13) is arranged on the below of control room (11); circuit breaker cart (13) outer cabinet door is provided with and once simulates board (5); observation window (6) and circuit breaker crank way (7); the cabinet door of circuit breaker crank way (7) below is provided with device nameplate (8); circuit breaker cart (13) below is provided with voltage transformer (17); voltage transformer (17) links to each other with overvoltage protection device (16) with PT fuse (15) respectively, and the circuit on the PT fuse (15) is provided with electrification in high voltage transducer (14) and links to each other with circuit breaker cart (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205786499U CN201821032U (en) | 2010-10-26 | 2010-10-26 | Overvoltage suppression cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205786499U CN201821032U (en) | 2010-10-26 | 2010-10-26 | Overvoltage suppression cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201821032U true CN201821032U (en) | 2011-05-04 |
Family
ID=43918974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205786499U Expired - Fee Related CN201821032U (en) | 2010-10-26 | 2010-10-26 | Overvoltage suppression cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201821032U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102969668A (en) * | 2012-12-06 | 2013-03-13 | 广东天富电气集团有限公司 | Full-insulation full-seal annular net 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 |
| CN111029119A (en) * | 2019-11-25 | 2020-04-17 | 国网山东省电力公司菏泽供电公司 | Automatic gear shifting transformer capable of sensing overvoltage and low voltage |
-
2010
- 2010-10-26 CN CN2010205786499U patent/CN201821032U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102969668A (en) * | 2012-12-06 | 2013-03-13 | 广东天富电气集团有限公司 | Full-insulation full-seal annular net 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 |
| CN111029119A (en) * | 2019-11-25 | 2020-04-17 | 国网山东省电力公司菏泽供电公司 | Automatic gear shifting transformer capable of sensing overvoltage and low voltage |
| CN111029119B (en) * | 2019-11-25 | 2022-12-06 | 国网山东省电力公司菏泽供电公司 | Automatic gear shifting transformer capable of sensing overvoltage and low voltage |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110504 Termination date: 20131026 |