CN204144926U - A kind of arc light protective device - Google Patents
A kind of arc light protective device Download PDFInfo
- Publication number
- CN204144926U CN204144926U CN201420552920.XU CN201420552920U CN204144926U CN 204144926 U CN204144926 U CN 204144926U CN 201420552920 U CN201420552920 U CN 201420552920U CN 204144926 U CN204144926 U CN 204144926U
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- arc light
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Abstract
A kind of arc light protective device, is characterized in that: what electric power incoming line was connected with on power source bus have drawer type vacuum circuit-breaker QF0, the 1st threephase current transformer TA1, the 1st circuit breaker Q F1 and in, the 2nd circuit breaker Q F2 on low-voltage bus bar; 2nd current transformer TA2; Main control unit, power module, current unit, arc detector are connected with data wire by optical fiber; Described main control unit is connected with drawer type vacuum circuit-breaker QF0, the 1st circuit breaker Q F1 by data wire; Described current unit is connected with current detecting unit by data wire; Described drawer type vacuum circuit-breaker QF0, the 1st circuit breaker Q F1 are attached thereto MCU Main Processing Unit by data wire, and current transformer TA1 is connected with CTE current unit, and 4 arc detectors are connected with MCU Main Processing Unit respectively by optical fiber.
Description
Technical field
The utility model relates to electric arc protection protective device, specifically in one, low tension switch locker cabinet electric arc protecting equipment.
Background technology
In the prior art, increasing user adopt electric arc protection as in, low-tension switch cabinet internal fault is protected, in becoming, the standard configuration of low-tension switch cabinet, large-scale popularization arc protection in electrical power trans mission/distribution system.
But in existing, in the application of low-tension switch cabinet technology, due to switch cubicle arc short-circuit fault cause in, low-voltage bus bar fault is also increasing; To in special, the problem of low-voltage bus bar protection is particularly important; it is lower that user also wishes to provide a kind of cost; principle is simple; be suitable for the protection equipment for busbar of 6-35KV; as how reduced busbar fault to greatest extent to the infringement of equipment; ensure that operating personnel preserve from, improve power supply reliability problem, need the problem solved further.
Summary of the invention
The utility model is the deficiency for existing electric arc protection; a kind of arc light protective device is provided; this device can fast detecting arc fault; several independently switch cubicle can be protected simultaneously; arc light unit and current unit can be distributed in different switch cubicles; the arc light detected or current signal are sent to main control unit, and main control unit collects the data of these necessity, exports trip signal to circuit breaker according to actual conditions.Make breaker open operation, protection bus and operating personnel preserve from.
The technical solution of the utility model is: a kind of arc light protective device, comprises the optical fiber between main control unit, power module, current unit, arc light unit, arc detector and connecting components and data wire; It is characterized in that: what electric power incoming line was connected with on power source bus have drawer type vacuum circuit-breaker QF0, the 1st threephase current transformer TA1, the 1st circuit breaker Q F1 and in, the 2nd circuit breaker Q F2 on low-voltage bus bar; 2nd current transformer TA2.
The utility model main control unit, power module, current unit, arc detector are connected with data wire by optical fiber; Described main control unit is connected with drawer type vacuum circuit-breaker QF0, the 1st circuit breaker Q F1 by data wire; Described current unit is connected with current detecting unit (threephase current transformer) by data wire.
Described drawer type vacuum circuit-breaker QF0, the 1st circuit breaker Q F1 are attached thereto MCU Main Processing Unit by data wire, current transformer TA1(current detecting unit) be connected with CTE current unit, 4 arc detectors are connected with MCU Main Processing Unit respectively by optical fiber.
MCU Main Processing Unit described in the utility model is the core component of arc light protection system, for management, controls a whole set of arc light protection system, simultaneously when there is arc light, and the separately protected switch cubicle of energy; Potentiometer on main control unit panel, main control unit system is arranged on the linear quadratic control room door-plate of bus-bar system electric power incoming line cabinet or electric power incoming line cabinet side switch cubicle usually.The signal that main control unit is carried according to arc light unit or arc detector, energy is failure judgement point position accurately; For making the programming in logic of main control unit easy to operate, can according to the different wiring of user and Operation Mode Selection Trip Logic; This main control unit, with RS485 communication interface, can carry out communication with host computer, warning message is passed to host computer.Four light signal entrances being exclusively used in arc light and current unit, can connect multiple arc detector or current unit, when they be only used for transmitting optical signal to main control unit time, regulate in a like fashion.
PSM power module described in the utility model
:it is one of arc light protecting system independently power supply, can be contained on the guide rail of bottom of cabinet; This power supply is powered to main control unit, then is supplied to arc light unit and current unit operating voltage by main control unit.
CTE current unit described in the utility model: current unit is used for guaranteeing the Trip Logic operability of protection system under different ruuning situation.By using current unit, the Trip Logic in arc light protecting system can be diversified, and have more selection.Current unit is arranged in electric power incoming line cabinet usually, and each electric power incoming line cabinet installs a current unit, and adjusting of electric current can be regulated by the potentiometer on panel.
CTE current unit is used for detection of excessive current signal, three-phase (A, B, C) electric current all can detect, 5A can be mated simultaneously, the current transformer of 2A and 1A, connect in order to ensure these, do not need other setting in current unit, but these secondary current terminals are directly connected on the terminal of CTE current unit.The signal that current unit detects is by optical fiber and data line transfer to main control unit, and whether main control unit sends trip command and over-current adjusting scope according to the Logic judgment set.
A kind of arc light protective device described in the utility model
:be exclusively used in the passive arc light detection of bus protection, be the photo-sensing device of detection arc light, be arranged in the bus-bar room of switch cubicle.When there is arclight fault, when luminous intensity increases considerably, light signal is directly passed to main control unit by arc detector.
The beneficial effects of the utility model are: a kind of arc light protective device; can fast detecting arc fault; several independently switch cubicle can be protected simultaneously; arc detector and current unit can be distributed in different switch cubicles; the arc light detected or current signal are sent to main control unit; main control unit collects these data, can judge whether fast to break down, and exports rapidly trip signal to circuit breaker.Make breaker open operation, stable operation and the operating personnel of protection bus switchgear preserve from.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated;
Fig. 1 is structural representation of the present utility model.
The utility model execution mode is with reference to accompanying drawing 1, in accompanying drawing, each element numerals represents similar parts, in the utility model accompanying drawing 1, what electric power incoming line was connected with on power source bus have drawer type vacuum circuit-breaker QF1, the 1st threephase current transformer TA1, the first circuit breaker Q F1 and in, the 2nd circuit breaker Q F2 on low-voltage bus bar; 2nd current transformer TA2.
The utility model main control unit, power module, current unit, arc detector are connected with data wire respectively by optical fiber.Drawer type vacuum circuit-breaker QF0, the 1st circuit breaker Q F1 are attached thereto MCU Main Processing Unit by data wire, and current detecting unit TA1 is connected with CTE current unit.
The utility model 4 arc detectors are connected with MCU Main Processing Unit respectively by optical fiber, and 4 described arc detectors are arranged in 4 switch cubicles respectively.
MCU Main Processing Unit of the present utility model is the core component of arc light protection system, for management, controls a whole set of arc light protection system, simultaneously when there is arc light, and the separately protected switch cubicle of energy; Potentiometer on main control unit MCU panel, is used for setting the photosensitive intensity that in arc light unit circuit version, the input of multiple light sensation detects; If protection system have employed current unit, and the current value adjusted does not exceed, and protection system can not send trip signal.Main control unit system is arranged on the linear quadratic control room door-plate of bus-bar system electric power incoming line cabinet or electric power incoming line cabinet side switch cubicle usually.The signal that main control unit is carried according to arc light unit or arc light probe unit, energy is failure judgement point position accurately; The programming in logic of main control unit is easy to operate, can according to the different wiring of user and Operation Mode Selection Trip Logic; This main control unit, with RS485 communication interface, can carry out communication with host computer, warning message is passed to host computer.Four light signal entrances being exclusively used in arc light and current unit, can connect multiple arc light unit or current unit, when they be only used for transmitting optical signal to main control unit time, regulate in a like fashion.
PSM power module of the present utility model
:be one of arc light protecting system independently power supply, can be contained on the guide rail of bottom of cabinet; This power supply is powered to main control unit, then is supplied to arc light unit and current unit operating voltage by main control unit.
The utility model CTE current unit: be used for guaranteeing the Trip Logic operability of protection system under different ruuning situation.By using current unit, the Trip Logic in arc light protecting system can be diversified, and have more selection.Current unit is arranged in electric power incoming line cabinet usually, and each electric power incoming line cabinet installs a current unit, and adjusting of electric current can be regulated by the potentiometer on panel.CTE current unit is used for detection of excessive current signal, and three-phase (A, B, C) electric current all can detect.Can 5A be mated, the current transformer of 2A and 1A simultaneously, connect in order to ensure these, do not need other setting in current unit, but these secondary current terminals are directly connected on the terminal of CTE current unit.The signal that current unit detects is by optical fiber and data line transfer to main control unit, and whether main control unit sends trip command according to the Logic judgment set, and over-current adjusting scope is 50%In to 500%In.
A kind of arc light protective device (KLD-AP-AS) of the present utility model
:be exclusively used in the passive arc light probe unit of bus protection, be the photo-sensing device of detection arc light, be arranged in the bus-bar room of switch cubicle.When there is arclight fault, luminous intensity increases considerably, and light signal is directly passed to main control unit by arc light probe unit.
The utility model when the arc light measurement mouth of main control unit is not enough, or when wanting to set more Trip Logic, then can also can arrange interpolation arc light unit.Use arc light unit can also save the expense of optical fiber: because arc light unit can be placed on need protection position near, only need an optical fiber from an arc light unit to another electric current or arc light unit or main control unit.Potentiometer on arc light unit (measurement module) panel is used for adjusting photosensitive intensity, after calibration is good, then information is delivered to next electric current or arc light unit or passes to main control unit.The all arc light input ports signal in arc light unit calibrated by potentiometer simultaneously, after the optical fiber needed for connecting installs, must regulate when arc light unit.Arc light unit can substitute the use of some optical cables.In the case, protection system can identify that the light sensation definite value of adjusting is exceeded local arc light probe unit all the time exactly.
Claims (5)
1. an arc light protective device, comprises the optical fiber between main control unit, power module, current unit, arc light unit, arc detector and connecting components and data wire; It is characterized in that: what electric power incoming line was connected with on power source bus have drawer type vacuum circuit-breaker QF0, the 1st threephase current transformer TA1, the 1st circuit breaker Q F1 and in, the 2nd circuit breaker Q F2 on low-voltage bus bar; 2nd current transformer TA2; Main control unit, power module, current unit, arc detector are connected with data wire by optical fiber; Described main control unit is connected with drawer type vacuum circuit-breaker QF0, the 1st circuit breaker Q F1 by data wire; Described current unit is connected with current detecting unit by data wire; Drawer type vacuum circuit-breaker QF0, the 1st circuit breaker Q F1 are attached thereto main control unit by data wire, and current transformer TA1 is connected with current unit, and 4 arc detectors are connected with main control unit respectively by optical fiber.
2. a kind of arc light protective device according to claim 1, it is characterized in that: described main control unit is the core component of arc light protection system, for management, control a whole set of arc light protection system, simultaneously when there is arc light, the separately protected switch cubicle of energy; Potentiometer on main control unit panel, main control unit system is arranged on the linear quadratic control room door-plate of bus-bar system electric power incoming line cabinet or electric power incoming line cabinet side switch cubicle usually; The signal that main control unit is carried according to arc light unit or arc detector, energy is failure judgement point position accurately; For making the programming in logic of main control unit easy to operate, can according to the different wiring of user and Operation Mode Selection Trip Logic; This main control unit, with RS485 communication interface, can carry out communication with host computer, warning message is passed to host computer; Four light signal entrances being exclusively used in arc light and current unit, can connect multiple arc detector or current unit, when they be only used for transmitting optical signal to main control unit time, regulate in a like fashion.
3. a kind of arc light protective device according to claim 1, is characterized in that: described power module
:it is one of arc light protecting system independently power supply, can be contained on the guide rail of bottom of cabinet; This power supply is powered to main control unit, then is supplied to arc light unit and current unit operating voltage by main control unit; Current unit: current unit is used for guaranteeing the Trip Logic operability of protection system under different ruuning situation; Current unit is arranged in electric power incoming line cabinet usually, and each electric power incoming line cabinet installs a current unit, and adjusting of electric current can be regulated by the potentiometer on panel.
4. a kind of arc light protective device according to claim 1, it is characterized in that: current unit is used for detection of excessive current signal, three-phase current all can detect, the current transformer of 5A, 2A and 1A can be mated simultaneously, connect in order to ensure these, do not need other setting in current unit, but these secondary current terminals are directly connected on the terminal of current unit; The signal that current unit detects is by optical fiber and data line transfer to main control unit, and whether main control unit sends trip command and over-current adjusting scope according to the Logic judgment set.
5. a kind of arc light protective device according to claim 1, is characterized in that: the passive arc light detection being exclusively used in bus protection, is the photo-sensing device of detection arc light, is arranged in the bus-bar room of switch cubicle; When there is arclight fault, when luminous intensity increases considerably, light signal is directly passed to main control unit by arc detector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420552920.XU CN204144926U (en) | 2014-09-25 | 2014-09-25 | A kind of arc light protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420552920.XU CN204144926U (en) | 2014-09-25 | 2014-09-25 | A kind of arc light protective device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204144926U true CN204144926U (en) | 2015-02-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420552920.XU Expired - Fee Related CN204144926U (en) | 2014-09-25 | 2014-09-25 | A kind of arc light protective device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204144926U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104917158A (en) * | 2015-07-01 | 2015-09-16 | 国网山东昌邑市供电公司 | Arc light detection and protection system for switchgear |
| CN105119246A (en) * | 2015-09-18 | 2015-12-02 | 成都比善科技开发有限公司 | Arc light protection system |
| CN109066601A (en) * | 2018-08-24 | 2018-12-21 | 南京南瑞继保电气有限公司 | A kind of middle-low voltage switch cabinet arc light protection method and system and arc light acquisition unit |
| CN114784764A (en) * | 2022-06-01 | 2022-07-22 | 安徽一天电气技术股份有限公司 | Arc light protection system and method |
-
2014
- 2014-09-25 CN CN201420552920.XU patent/CN204144926U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104917158A (en) * | 2015-07-01 | 2015-09-16 | 国网山东昌邑市供电公司 | Arc light detection and protection system for switchgear |
| CN105119246A (en) * | 2015-09-18 | 2015-12-02 | 成都比善科技开发有限公司 | Arc light protection system |
| CN105119246B (en) * | 2015-09-18 | 2019-06-07 | 成都比善科技开发有限公司 | Arc light protection system |
| CN109066601A (en) * | 2018-08-24 | 2018-12-21 | 南京南瑞继保电气有限公司 | A kind of middle-low voltage switch cabinet arc light protection method and system and arc light acquisition unit |
| CN114784764A (en) * | 2022-06-01 | 2022-07-22 | 安徽一天电气技术股份有限公司 | Arc light protection system and method |
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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: 20150204 Termination date: 20190925 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |