CN202633921U - Arc light protection device - Google Patents
Arc light protection device Download PDFInfo
- Publication number
- CN202633921U CN202633921U CN 201220296996 CN201220296996U CN202633921U CN 202633921 U CN202633921 U CN 202633921U CN 201220296996 CN201220296996 CN 201220296996 CN 201220296996 U CN201220296996 U CN 201220296996U CN 202633921 U CN202633921 U CN 202633921U
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- China
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- unit
- main control
- arc
- collecting unit
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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 - Lifetime
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Abstract
The utility model discloses an arc light protection device which comprises a main control unit, an input module and an output control module. The arc light protection device is characterized in that an eight-core CPU (central processing unit) is adopted for the main control unit; the input module comprises an alternating-current quantity collecting unit, a direct-current quantity collecting unit, an arc sensing unit and a temperature sensing unit, wherein the output end of the arc sensing unit is correspondingly connected with a TD1 pin and a TD2 pin of the direct-current quantity collecting unit; the output ends of the alternating-current quantity collecting unit, the direct-current quantity collecting unit and the temperature sensing unit are correspondingly connected with an AX1 pin, an AX2 pin, a DX1 pin, a DX2 pin, a PD1 pin and a PD2 pin of the input end of the main control unit; and the output control unit is connected with a PB1 pin and a PB2 pin of the output end of the main control unit by adopting a relay. By adopting the device, faults can be removed rapidly so as to limit the duration time of fault arc, the fault arc is limited radically, dangers to devices and people by various effects of the fault arc can be eliminated, the damage degree to a switch device by the arc light is lowered maximally, meanwhile, the development of the fault is blocked off, thus a main transformer is prevented from being damaged due to the long-time impact of short circuit current.
Description
Technical field
The utility model provides a kind of arclight protective device, belongs to the relaying protection and the observation and control technology in power supply, distribution and Electrical Safety field.
Background technology
With respect to electric equipments such as transmission line, generator, motor and transformers, the probability of failure of bus is lower.But because bus-bar insulator or circuit breaker, isolating switch sleeve pipe generation flashover, operations staff's misoperation, middle voltage bus bar receives reasons such as toy harm, and busbar fault happens occasionally.And be connected to more electric component on the bus usually, and all these electric components are had a power failure, its influence area is big, and consequence is serious.On the bus of the above electric pressure of China 220KV, for satisfying the requirement of power system transient stability, generally all be equiped with special quick bus protection at present, busbar fault can be excised selectively fast.The bus of 110KV electric pressure is looked its significance level and complexity, the bus protection that some installing is special, and what have does not then adorn.And the middle voltage bus bar of the following electric pressure of 35KV goes out number of lines what, complexity regardless of it, does not generally all install special bus protection.And the inner arc fault of switch cubicle is a kind of very serious fault in the distribution system; Its generation can cause catastrophic consequence; The various fault electric arc effects that huge energy produced that its internal arc burning discharges; Seriously burn expensive switchgear, short-circuit current rush can damage main transformer, causes long-time power failure.More serious is near staff's casualty accident it also can cause.With regard to the middle voltage bus bar short-circuit protection scheme of present application; Can not satisfy the requirement of switch cubicle internal electrical arc light short circuit; Need to introduce new special-purpose bus protection scheme and improve power supply reliability, reduce the problem of interruption duration to solve modern power systems and industrial enterprise.
The utility model content
The purpose of the utility model provides a kind of can addressing the above problem, and can realize that again intellectuality, automation also lay the foundation for remote measurement, remote control, and arclight protective device simple in structure, novel in design, efficient, that control is sensitive.Its technical scheme is:
A kind of arclight protective device; Comprise main control unit, input module and output control module; It is characterized in that: main control unit adopts 8 nuclear CPU; Input module comprises of ac collecting unit, DC quantity collecting unit, electric arc sensing unit and temperature sensing unit, and wherein the output correspondence of electric arc sensing unit connects the TD1 pin and the TD2 pin of DC quantity collecting unit, and the output correspondence of of ac collecting unit, DC quantity collecting unit and temperature sensing unit connects input AX1 pin, AX2 pin, DX1 pin, DX2 pin, PD1 pin and the PD2 pin of main control unit; Output control module adopts relay, connects output PB1 pin, the PB2 pin of main control unit.
Described arclight protective device, of ac collecting unit comprise current transformer and the voltage transformer that is installed in the switch cubicle.
Described arclight protective device, the electric arc sensing unit adopts the arclight transducer that is installed in the switch cubicle, is responsible for detecting arclight, and becomes 4～20mA current signal to the arc light intensity-conversion; Temperature sensing unit adopts the temperature sensor that is installed in the switch cubicle, is responsible for detected temperatures, and converts temperature value to 4～20mA current signal.
The utility model compared with prior art, its advantage is to improve the reliability of the safe operation of substation equipment, effectively prevents the generation of all kinds of accidents; Increase work efficiency; Reduce maintenance cost; Alleviate operation maintenance personnel's labour intensity, the safe operation and the reliable power supply of substation equipment are guaranteed in realization science, efficient monitoring; Avoid accident to cause user's power failure adverse effect, embody good economic benefit and social benefit.
Description of drawings
Fig. 1 is the winding diagram of the utility model embodiment.
Among the figure: 1, main control unit 2, output control module 3, of ac collecting unit 4, DC quantity collecting unit 5, electric arc sensing unit 6, temperature sensing unit
Embodiment
In the embodiment shown in fig. 1: main control unit 1 adopts 8 nuclear CPU; Input module comprises of ac collecting unit 3, DC quantity collecting unit 4, electric arc sensing unit 5 and temperature sensing unit 6; Wherein, output control module 2 adopts relay, connects output PB1 pin, the PB2 pin of main control unit 1; Of ac collecting unit 3 comprises current transformer and the voltage transformer that is installed in the switch cubicle; Temperature sensing unit 6 adopts the temperature sensor that is installed in the switch cubicle; Electric arc sensing unit 5 adopts the arclight transducer that is installed in the switch cubicle; The output correspondence of electric arc sensing unit 5 connects the TD1 pin and the TD2 pin of DC quantity collecting unit 4, and the output correspondence of of ac collecting unit 3, DC quantity collecting unit 4 and temperature sensing unit 6 connects input AX1 pin, AX2 pin, DX1 pin, DX2 pin, PD1 pin and the PD2 pin of main control unit 1.
Claims (4)
1. arclight protective device; Comprise main control unit (1), input module and output control module (2); It is characterized in that: main control unit (1) adopts 8 nuclear CPU; Input module comprises of ac collecting unit (3), DC quantity collecting unit (4), electric arc sensing unit (5) and temperature sensing unit (6); Wherein the output correspondence of electric arc sensing unit (5) connects the TD1 pin and the TD2 pin of DC quantity collecting unit (4); The output correspondence of of ac collecting unit (3), DC quantity collecting unit (4) and temperature sensing unit (6) connects input AX1 pin, AX2 pin, DX1 pin, DX2 pin, PD1 pin and the PD2 pin of main control unit (1), and output control module (2) adopts relay, connects output PB1 pin, the PB2 pin of main control unit (1).
2. arclight protective device as claimed in claim 1 is characterized in that: of ac collecting unit (3) comprises current transformer and the voltage transformer that is installed in the switch cubicle.
3. arclight protective device as claimed in claim 1 is characterized in that: electric arc sensing unit (5) adopts the arclight transducer that is installed in the switch cubicle.
4. arclight protective device as claimed in claim 1 is characterized in that: temperature sensing unit (6) adopts the temperature sensor that is installed in the switch cubicle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220296996 CN202633921U (en) | 2012-06-25 | 2012-06-25 | Arc light protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220296996 CN202633921U (en) | 2012-06-25 | 2012-06-25 | Arc light protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202633921U true CN202633921U (en) | 2012-12-26 |
Family
ID=47387067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220296996 Expired - Lifetime CN202633921U (en) | 2012-06-25 | 2012-06-25 | Arc light protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202633921U (en) |
-
2012
- 2012-06-25 CN CN 201220296996 patent/CN202633921U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121226 |
|
| CX01 | Expiry of patent term |