CN203630175U - Direct-current arc generating apparatus - Google Patents
Direct-current arc generating apparatus Download PDFInfo
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- CN203630175U CN203630175U CN201320787859.2U CN201320787859U CN203630175U CN 203630175 U CN203630175 U CN 203630175U CN 201320787859 U CN201320787859 U CN 201320787859U CN 203630175 U CN203630175 U CN 203630175U
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- direct
- electrode
- current arc
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- arc generating
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- 239000004020 conductor Substances 0.000 claims description 11
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 3
- 238000012360 testing method Methods 0.000 abstract description 5
- 230000007547 defect Effects 0.000 abstract 1
- 238000010891 electric arc Methods 0.000 description 11
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 210000002268 wool Anatomy 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
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- 238000001514 detection method Methods 0.000 description 1
- 238000004070 electrodeposition Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
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Abstract
The utility model relates to a direct-current arc generating apparatus. The apparatus is characterized by comprising a fixed electrode located at a fixed place and a movable electrode arranged opposite to the fixed electrode. The movable electrode is arranged on a high-precision transverse regulator. The transverse regulator controls the movable electrode to move close to or away from the fixed electrode horizontally. The fixed electrode and the movable electrode are both connected with a contactor. The direct-current arc generating apparatus provided by the utility model employs the high-precision adjustable movable electrode and controls the distance between the two discharge electrodes at the micrometer scale, thereby precisely controlling the energy of arcs. The arc generating apparatus is internally provided with the contactor for controlling the electrode connection state, and at the same time, the apparatus comprises a transparent protection cover for ensuring the operation safety. The direct-current arc generating apparatus provided by the utility model solves the defects that conventional similar apparatuses are inconvenient in operation, low in safety, and difficult for arc energy control, and the direct-current arc generating apparatus is suitable for direct-current arc detecting tests.
Description
Technical field
The utility model relates to the device of direct-current arc detecting test in a kind of PV of being applied to system and device, is used for simulating harmful electric arc that may exist in PV system, as serial arc and electric arc in parallel.
Background technology
U.S. electrician rules NEC2011 version starts claimed apparatus must provide direct-current arc detecting function at buildings or passing through building and the PV system of PV voltage more than 80V, and this is to propose clear and definite rules and newest standards for direct-current arc for the first time in the world.
Current, mainly concentrate on direct-current arc method for detecting and how to realize two aspects of fast shut-off for the research of direct-current arc, and obtained certain achievement; And it is little for the research of the direct-current arc generating means that is used for simulating various true fault electric arc situations.
At present, direct-current arc generating means is as a kind of testing tool, and some companies and research institution have made different proving installations according to demand separately, can conclude and be summarized as two schemes:
1) first kind, knife switch class; TI company has proposed a kind of device that utilizes knife switch to carry out analog DC electric arc.Shortcoming is that the voltage and current of electric arc is unstable, and energy is wayward, and security is low.
2) Equations of The Second Kind, electrode discharge class; UL research and development department provides a kind of scheme of utilizing steel wool Discharge Simulation electric arc between copper rod, obtains arc voltage and the electric current expected by fixing electrode separation.The precision of this scheme control arc voltage, electric current and energy is low, and adjustability is poor.
Summary of the invention
The technical problems to be solved in the utility model is to provide a kind of arc energy control and is easy to direct-current arc generating means.
In order to solve the problems of the technologies described above, the technical solution of the utility model has been to provide a kind of direct-current arc generating means, it is characterized in that: comprise fixed electorde that position is fixing and the traveling electrode with fixed electorde positioned opposite, traveling electrode is located on high precision lateral adjustments device, by lateral adjustments device control traveling electrode level near fixed electorde position or to moving away from fixed electorde position direction, fixed electorde and traveling electrode all connect contactor.
Preferably, described fixed electorde, described lateral adjustments device and described contactor are all fixed on fixed pedestal, are covered with transparent safty shield on fixed pedestal, and described contactor, described fixed electorde and described traveling electrode are all positioned at safty shield.
Preferably, between the described fixed electorde top relative with described traveling electrode position, be provided with conductive material, have transparent insulation pipe at the top of fixed electorde, top and the conductive material overcoat of traveling electrode.
The direct-current arc generating means the utility model proposes adopts the adjustable traveling electrode of high precision, can control two distances between sparking electrode and be accurate to micron, thereby control accurately the energy of electric arc.The built-in contactor of this arc generating device, is used for control electrode connection status, and this device comprises a well-illuminated protective cover simultaneously, guarantees the security of operation.The direct-current arc generating means the utility model proposes has solved existing same device arc energy control difficulty, operation inconvenience, and the low deficiency that waits of security, is applicable in direct-current arc detecting test.
Accompanying drawing explanation
The structural representation of a kind of direct-current arc generating means that Fig. 1 provides for the utility model;
The application connecting circuit figure of a kind of direct-current arc generating means that Fig. 2 provides for the utility model.
Embodiment
For the utility model is become apparent, hereby with preferred embodiment, and coordinate accompanying drawing to be described in detail below.
As shown in Figure 1, a kind of direct-current arc generating means that the utility model provides, comprises fixed electorde 1, and fixed electorde 1 is fixed on fixed station, and fixed station is fixed on fixed pedestal 4.Traveling electrode 2 relatively arranges with fixed electorde 1 position, and traveling electrode 2 is fixed on lateral adjustments device 3, controls traveling electrode 2 levels near fixed electorde 1 position or to moving away from fixed electorde 1 position direction by it.3 of lateral adjustments devices are fixed on fixed pedestal 4.Traveling electrode 2 and fixed electorde 1 all connect contactor 8.By transparent safty shield 5, fixed electorde 1, traveling electrode 2 and contactor 8 are covered.
Fixed electorde 1 and traveling electrode 2 adopt the sparking electrode of being made up of copper, graphite carbonaceous or other conductive material, and this sparking electrode can be that tack can be also the forms such as tip.Lateral adjustments device 3 can be manual adjustments, as rotary or drawing and pulling type etc.; Also can be automatic adjusting, as step motor control mode etc.Electrode discharge mode of the present utility model can be to change sparking electrode spacing arcing electric discharge, also can be fixed electorde spacing, by conductive material discharge generation electric arc etc., for example as shown in Figure 1, between fixed electorde 1 top relative with traveling electrode 2 positions, be provided with conductive material 7, have transparent insulation pipe 6 at the top of fixed electorde 1, top and conductive material 7 overcoats of traveling electrode 2.Conductive material 7 can adopt steel wool.
The device that the utility model provides can be widely used in direct-current arc detecting test.The application of this device for convenience of description, below illustrates the using method of this device using photovoltaic DC-to-AC converter as tested object.
The producing method of direct-current arc mainly contains two classes: a class is fixed electorde spacing discharge mode, and a class is to regulate electrode separation discharge mode.
1) fixed electorde spacing discharge mode
Press Fig. 2 connecting circuit, wherein direct-current arc generating means and AFD (Arcing Fault Detection) plate series connection place in circuit, regulating traveling electrode 2 to make the distance between two electrodes is expectation value, and between two electrodes, put into appropriate steel wool (or other similar conductive materials), control contactor 8 adhesives, by two sparking electrode short circuits, then power on and make photovoltaic inverter grid-connected work, after stable operation, contactor 8 is disconnected, steel wool (or other similar conductive materials) burns rapidly and produces electric arc between electrode.Spacing between adjusting electrode and the electric current and voltage of photovoltaic array can change the energy of electric arc.
2) regulate electrode separation discharge mode
Press Fig. 2 connecting circuit, regulate traveling electrode 2, allow two electrodes directly connect, and guarantee to connect closely seamless, disconnect contactor 8 simultaneously, photovoltaic array powers on, grid-connected inverters operation, now circuital current two electrodes of flowing through.Regulate lentamente traveling electrode 8, the distance between two electrodes is increased, at this moment can between two electrodes, produce arcing.Spacing between adjusting electrode and the electric current and voltage of photovoltaic array can change the energy of electric arc.
Claims (3)
1. a direct-current arc generating means, it is characterized in that: comprise the fixing fixed electorde in position (1) and the traveling electrode (2) with fixed electorde (1) positioned opposite, traveling electrode (2) is located on high precision lateral adjustments device (3), control traveling electrode (2) level near fixed electorde (1) position or to moving away from fixed electorde (1) position direction, fixed electorde (1) and traveling electrode (2) all connect contactor (8) by lateral adjustments device (3).
2. a kind of direct-current arc generating means as claimed in claim 1, it is characterized in that: described fixed electorde (1), described lateral adjustments device (3) and described contactor (8) are all fixed on fixed pedestal (4), on fixed pedestal (4), be covered with transparent safty shield (5), described contactor (8), described fixed electorde (1) and described traveling electrode (2) are all positioned at safty shield (5).
3. a kind of direct-current arc generating means as claimed in claim 1, it is characterized in that: between described fixed electorde (1) top relative with described traveling electrode (2) position, be provided with conductive material (7), have transparent insulation pipe (6) at the top of fixed electorde (1), top and conductive material (7) overcoat of traveling electrode (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320787859.2U CN203630175U (en) | 2013-12-03 | 2013-12-03 | Direct-current arc generating apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320787859.2U CN203630175U (en) | 2013-12-03 | 2013-12-03 | Direct-current arc generating apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203630175U true CN203630175U (en) | 2014-06-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320787859.2U Expired - Lifetime CN203630175U (en) | 2013-12-03 | 2013-12-03 | Direct-current arc generating apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203630175U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106290446A (en) * | 2015-05-29 | 2017-01-04 | 国网智能电网研究院 | A kind of controlled direct-current arc generating means based on constant-current source |
| CN106290041A (en) * | 2015-05-29 | 2017-01-04 | 国网智能电网研究院 | A kind of resistance to ablative test method of nozzle of circuit breaker material |
| CN107179518A (en) * | 2017-05-17 | 2017-09-19 | 莱茵技术（上海）有限公司 | A kind of arc generator and the device for detecting electric arc detecting device sensitivity |
| CN109212284A (en) * | 2018-11-21 | 2019-01-15 | 华侨大学 | A kind of arc fault generating system and control method accurately controlled |
| CN112798884A (en) * | 2020-12-15 | 2021-05-14 | 珠海格力电器股份有限公司 | Convenient arc burning device, control method, arc generator and application |
-
2013
- 2013-12-03 CN CN201320787859.2U patent/CN203630175U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106290446A (en) * | 2015-05-29 | 2017-01-04 | 国网智能电网研究院 | A kind of controlled direct-current arc generating means based on constant-current source |
| CN106290041A (en) * | 2015-05-29 | 2017-01-04 | 国网智能电网研究院 | A kind of resistance to ablative test method of nozzle of circuit breaker material |
| CN107179518A (en) * | 2017-05-17 | 2017-09-19 | 莱茵技术（上海）有限公司 | A kind of arc generator and the device for detecting electric arc detecting device sensitivity |
| CN109212284A (en) * | 2018-11-21 | 2019-01-15 | 华侨大学 | A kind of arc fault generating system and control method accurately controlled |
| CN112798884A (en) * | 2020-12-15 | 2021-05-14 | 珠海格力电器股份有限公司 | Convenient arc burning device, control method, arc generator and application |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140604 |