CN202602261U - Arc flash protection device in electric control cabinet of wind driven generator - Google Patents
Arc flash protection device in electric control cabinet of wind driven generator Download PDFInfo
- Publication number
- CN202602261U CN202602261U CN 201220276722 CN201220276722U CN202602261U CN 202602261 U CN202602261 U CN 202602261U CN 201220276722 CN201220276722 CN 201220276722 CN 201220276722 U CN201220276722 U CN 201220276722U CN 202602261 U CN202602261 U CN 202602261U
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- arc
- dodges
- power supply
- electric
- driven generator
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Abstract
The utility model discloses an arc flash protection device in an electric control cabinet of a wind driven generator. The arc flash protection device in the electric control cabinet of the wind driven generator comprises a plurality of arc light sensors, arc flash control units and breaking coils, wherein the arc light sensors are installed in the electric control cabinet of the wind driven generator and are used for detecting arc light in the cabinet; the arc flash control units are respectively connected with the plurality of arc light sensors, and emit control signals for indicating to cut off a main loop power supply or a branch power supply according to arc light signals detected by any arc light sensor; and the breaking coils are connected with the arc flash control units, and cut off the supply of the main loop power supply or the branch power supply according to the control signals. According to the utility model, the damage to electrical devices and electric cables in the electric control cabinet by electric arc sparkles can be reduced or eliminated, meanwhile, the hurt to people caused by electric arc as well as the generation of fire disasters in a large area in the wind driven generator are prevented.
Description
Technical field
The utility model relates to the electrical control cabinet of wind turbine generator.
Background technology
Develop rapidly along with the wind-powered electricity generation industry; Design in the wind turbine generator electrical control cubicles is in improvement and perfect step by step; Guarantee that the electric component operate as normal in the cabinet is particularly important, this not only is embodied in the type selecting of these devices and installs, and the late protection of equipment also is a very important link.
Electric arc is a kind of very common electric spark phenomenon, gently then causes device damage, personnel electricity to hinder, heavy then large tracts of land fire, personnel death.Arc-flash is to be discharged suddenly through air by a kind of beyond thought luminous energy and heat-flash that electric current produces, the accident that is normally caused by contact between the energized conductor.The electric arc blast is a pressure wave, is owing to heating, fusing, the gasification of flashing conductor material in the journey at arc cause the blast of surrounding air instantaneous expansion.The systematic voltage of key factor of decision arc-flash, fault current etc.Arc phenomenon is inevitable in reality, therefore, need make corresponding processing to electric arc, reducing the damage of electric arc to equipment, and to personnel's injury.
The utility model content
The purpose of the utility model is to provide the flashing protective device in a kind of wind turbine generator electrical control cubicles, can be through detecting arc light in the cabinet in the wind turbine generator electrical control cubicles, solve electric arc to the damage of equipment and to personnel's injury problem.
According to an aspect of the utility model, the flashing protective device in a kind of wind turbine generator electrical control cubicles is provided, comprising:
Be installed in and be used for a plurality of arc photosensors of arc light in the detecting box in the wind turbine generator electrical control cubicles;
The arc that connects said a plurality of arc photosensors respectively dodges control unit, is used for according to the detected arc optical signal of any one arc photosensor, sends the control signal of cutting off a main circuit power or a branch road power supply;
Connect the breaking coil that said arc dodges control unit, be used for, cut off the supply of main circuit power or branch road power supply according to said control signal.
Preferably, said a plurality of arc photosensor comprises one or several point sensors and/or Fibre Optical Sensor.
Preferably, said arc sudden strain of a muscle control unit is that arc dodges relay.
Preferably, said arc dodges relay and has and be used for connecting USB interface of computer.
Preferably, said arc sudden strain of a muscle relay has the interface that is used for connecting other arcs sudden strain of a muscle relays.
Compared with prior art, the beneficial effect of the utility model is:
The utility model is through in time finding arc light in the cabinet in the wind turbine generator electrical control cubicles, avoided because of electric arc cause to the damage of equipment with to personnel's injury.
Description of drawings
Fig. 1 is the circuit diagram of the flashing protective device in the wind turbine generator electrical control cubicles that provides of the utility model first embodiment;
Fig. 2 is the circuit diagram of the flashing protective device in the wind turbine generator electrical control cubicles that provides of the utility model second embodiment.
Embodiment
Be elaborated below in conjunction with the preferred embodiment of accompanying drawing, should be appreciated that following illustrated preferred embodiment only is used for explanation and explains the utility model, and be not used in qualification the utility model the utility model.
Fig. 1 is the circuit diagram of the flashing protective device in the wind turbine generator electrical control cubicles that provides of the utility model first embodiment; As shown in Figure 1; Comprise that a plurality of arc photosensors, arc dodge control unit and breaking coil, wherein, A and B represent the detection range of different arc photosensors respectively.
Said a plurality of arc photosensor, it is installed in the electrical control cubicles of wind turbine generator, is used for arc-flash whether occurring in the detecting box, and after detecting arc-flash, dodges control unit to arc and send arc optical signal.Said arc photosensor is point sensor and/or Fibre Optical Sensor, and wherein, said point sensor detection range is less, and said Fibre Optical Sensor detection range is bigger, can replace several point sensors.
Said arc dodges control unit, and it connects said a plurality of arc photosensor respectively through sensor signal lines, is used to receive the arc optical signal from any one arc photosensor, and according to said arc optical signal, sends the control signal that is used to cut off main circuit power.It is that arc dodges relay that said arc dodges control unit, and it has and is used for connecting USB interface of computer, and has and be used for connecting the interface that other arcs dodge relays.
Said breaking coil, it connects said arc and dodges control unit, is used for dodging the control signal that control unit sends according to said arc, cuts off the supply of main circuit power.
Present embodiment adopts arc photosensor and arc to dodge control unit as detection and control device, and is linked in sequence according to control logic.When said arc photosensor detect in the electrical control cubicles arc light is arranged after; Said arc dodges the arc optical signal that control unit sends according to the arc photosensor that receives; The outage of control breaking coil; Thereby make circuit breaker cut off power supply supply corresponding with main circuit power in the switch cubicle along with the outage of breaking coil, make the equipment dead electricity in the electrical control cubicles, the interior flashing of cabinet also is accompanied by the disconnection of main circuit power and disappears.
Further; When the position that needs in the electrical control cubicles to detect was many, an arc dodged the arc photosensor limited amount that connects on the relay, at this moment; Can dodge relay through external a plurality of arcs increases the quantity of available arc photosensor; Thereby satisfy the detection demand, as shown in Figure 2, Fig. 2 provides a kind of flashing protective device that two arcs dodge relay that has.
Fig. 2 has shown the circuit diagram of the flashing protective device in the wind turbine generator electrical control cubicles that the utility model second embodiment provides; Comprise that a plurality of arc photosensors, two arcs dodge relay and breaking coil; Wherein, A and B represent the detection range of different arc photosensors respectively.
Present embodiment adopts arc photosensor and arc to dodge relay as detection and control device, and is linked in sequence according to control logic.When said arc photosensor detect in the electrical control cubicles arc light is arranged after; Corresponding arc dodges the arc optical signal that control unit sends according to the arc photosensor that receives; The outage of control breaking coil; Thereby make contactor cut off power supply supply corresponding with the branch road power supply in the switch cubicle along with the outage of breaking coil, make the equipment dead electricity in the electrical control cubicles, the interior flashing of cabinet also is accompanied by the disconnection of branch road power supply and disappears.
Further, the control core of the said device of the utility model embodiment is that arc dodges relay, and it has USB interface, can directly link to each other with computer, shows relevant information through computer, also can make corresponding operating on computers.
The scheme of Fig. 1 and Fig. 2 is embodied in when having a place flashing to occur in the electrical control cubicles, and main circuit power can break off, and is not damaged though can guarantee the equipment in the electrical control cubicles like this, can influence the normal operation of whole wind turbine generator.Therefore, for guaranteeing the normal operation of wind turbine generator, can use a plurality of arcs to dodge control unit and detect and control a plurality of branch roads in the electrical control cubicles respectively; If flashing appears in a position under certain branch road; Can dodge the branch road power supply that control unit control circuit breaker breaks off said branch road through arc, thereby, the power supply of other branch roads do not influenced; Just avoiding wind turbine generator to shut down in some cases, keep the normal power generation of wind turbine generator.Is example only to have branch road 1 in the electrical control cubicles with branch road 2, at first, according to the number at the position of needs detection in each branch road, confirms to use arc to dodge the number of control unit.When the arc photosensor in the said branch road 1 detects when arc-flash occurring in the branch road 1, through sensor signal lines arc optical signal is sent to connected arc and dodges relay, said arc dodges relay according to said arc optical signal; Break off the power supply of breaking coil; Cause in the branch road 1 corresponding contact also to be broken off, promptly broken off the supply of the branch road power supply of said branch road 1, last; The equipment dead electricity of branch road 1 in the electrical control cubicles, flashing also is accompanied by the disconnection of branch road power supply and disappears.Behind branch road 1 disconnected branches power supply, branch road 2 does not receive the influence of branch road 1, can work on.
The working power of said electrical control cubicles is to be provided by electrical network; Electrical network mesohigh electricity carries out being input in the switch cubicle after step-down is handled through transformer; Have the circuit breaker and the contactor that is connected branch road that connect corresponding major loop in the electrical control cubicles in the said switch cubicle, said circuit breaker and contactor break off with the outage with breaking coil.
Compared with prior art, the utlity model has following technique effect:
1, the utility model can in time be found arc light in the cabinet in the wind turbine generator electrical control cubicles, thereby the damage of electric device and/or cable in the electrical control cubicles of having avoided causing because of electric arc has guaranteed the normal operation of wind turbine generator;
2, the utility model reduces or has eliminated the direct injury that arc spark brings for the staff that overhauling;
3, the large tracts of land fire in the utility model wind turbine generator of having avoided causing because of electric arc has promptly reduced personnel's injury, has reduced enormous economic loss again.
Although preceding text specify the utility model, the utility model is not limited thereto, and those skilled in the art of the present technique can carry out various modifications according to the principle of the utility model.Therefore, all modifications of being done according to the utility model principle all are to be understood that to falling into the protection range of the utility model.
Claims (5)
1. the flashing protective device that the wind turbine generator electrical control cubicles is interior is characterized in that, comprising:
Be installed in and be used for a plurality of arc photosensors of arc light in the detecting box in the wind turbine generator electrical control cubicles;
The arc that connects said a plurality of arc photosensors respectively dodges control unit, is used for according to the detected arc optical signal of any one arc photosensor, sends the control signal of cutting off a main circuit power or a branch road power supply;
Connect the breaking coil that said arc dodges control unit, be used for, cut off the supply of main circuit power or branch road power supply according to said control signal.
2. flashing protective device according to claim 1 is characterized in that, said a plurality of arc photosensors comprise one or several point sensors and/or Fibre Optical Sensor.
3. flashing protective device according to claim 2 is characterized in that, it is that arc dodges relay that said arc dodges control unit.
4. flashing protective device according to claim 3 is characterized in that, said arc dodges relay to have and be used for connecting USB interface of computer.
5. according to claim 3 or 4 described flashing protective devices, it is characterized in that said arc dodges relay and has the interface that is used for connecting other arcs sudden strain of a muscle relays.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220276722 CN202602261U (en) | 2012-06-12 | 2012-06-12 | Arc flash protection device in electric control cabinet of wind driven generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220276722 CN202602261U (en) | 2012-06-12 | 2012-06-12 | Arc flash protection device in electric control cabinet of wind driven generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202602261U true CN202602261U (en) | 2012-12-12 |
Family
ID=47319777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220276722 Expired - Lifetime CN202602261U (en) | 2012-06-12 | 2012-06-12 | Arc flash protection device in electric control cabinet of wind driven generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202602261U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116581712A (en) * | 2023-07-07 | 2023-08-11 | 深圳市首航新能源股份有限公司 | Battery cluster and energy storage system thereof |
-
2012
- 2012-06-12 CN CN 201220276722 patent/CN202602261U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116581712A (en) * | 2023-07-07 | 2023-08-11 | 深圳市首航新能源股份有限公司 | Battery cluster and energy storage system thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SINOVEL WIND TECHNOLOGY (GANSU) CO., LTD. Free format text: FORMER OWNER: SINOVEL WIND (GROUP) CO., LTD. Effective date: 20150112 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 100872 HAIDIAN, BEIJING TO: 735000 JIUQUAN, GANSU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20150112 Address after: Suzhou Industrial Park 735000 area in Gansu city of Jiuquan province (South Park) Patentee after: Sinovel Technology (Gansu) Co., Ltd. Address before: 100872 cultural building, 59 Zhongguancun street, Beijing, Haidian District Patentee before: Sinovel Wind Group Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20121212 |
|
| CX01 | Expiry of patent term |