CN105510815A - Fault arc test apparatus - Google Patents
Fault arc test apparatus Download PDFInfo
- Publication number
- CN105510815A CN105510815A CN201510843084.XA CN201510843084A CN105510815A CN 105510815 A CN105510815 A CN 105510815A CN 201510843084 A CN201510843084 A CN 201510843084A CN 105510815 A CN105510815 A CN 105510815A
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- China
- Prior art keywords
- test electrode
- electric arc
- fault electric
- mounting rod
- test
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
Abstract
The invention relates to a fault arc test apparatus. The fault arc test apparatus comprises an upper test electrode and a lower test electrode which are opposite to each other at an upper position and a lower position and are arranged at an interval, wherein the upper test electrode and/or the lower test electrode is provided with an arcing wire. The fault arc test apparatus further comprises a voltage applying end which is used for applying voltages between the upper test electrode and the lower test electrode to enable initiate fault arcs between the upper test electrode and the lower test electrode. According to the invention, the fault arcs are initiated by applying the voltages to the upper test electrode and the lower test electrode, and such an arcing mode does not require a complex operating mechanism. Therefore, the fault arc test apparatus is simple in structure and low in cost.
Description
Technical field
The invention belongs to field of high-voltage electrical equipment, be specifically related to a kind of fault electric arc test unit.
Background technology
The fault electric arc occurred in the chamber of switchgear inner sealing can form high pressure and high temperature within very short time, and this will cause great harm to the person and equipment.Therefore, need the process studying fault electric arc generation, and instruct with this and optimize the design of high-tension switch gear.
Such as, Authorization Notice No. is CN202712001U, and name is called that a kind of Chinese patent of switching arc generation proving installation discloses a kind of switching arc generation proving installation.This switching arc generation proving installation comprises closed chamber, is arranged on the dynamic and static arcing contact of enclosed cavity indoor and operating mechanism, cut-off by operating mechanism control moving arcing contact and static arc contact and produce fault electric arc, and pass through the production process of the detection failure such as temperature sensor, pressure transducer electric arc.Because the striking mode disconnected fast again after employing moving arcing contact contacts with static arc contact, so need to set up the catanator handling moving arcing contact action, and higher to the requirement of catanator, need catanator quick acting.Arranging of handle structure can make the structure of switching arc generation proving installation become complicated, and cost increases.In addition, the arc duration that the striking mode disconnected fast again after employing moving arcing contact contacts with static arc contact produces is ofer short duration, is unfavorable for observing and research electric arc.
Summary of the invention
The present invention relates to a kind of fault electric arc test unit and make the complex structure of fault electric arc test unit and the high technical matters of cost to solve fault electric arc test unit because of needing to handle the QA handle structure of moving arcing contact.
The technical scheme of fault electric arc test unit of the present invention: a kind of fault electric arc test unit, it is characterized in that: comprise relative up and down and spaced upper test electrode and lower test electrode, upper test electrode and/or lower test electrode are provided with striking silk, and described fault electric arc test unit also comprises makes the voltage of initiating failure electric arc between upper and lower test electrode apply end for applying voltage between upper test electrode and lower test electrode.
Striking silk is located on test electrode, described fault electric arc test unit also comprises the upper test electrode mounting rod that housing and length extend along the vertical direction, upper test electrode is located at the lower end of test electrode mounting rod, upper test electrode mounting rod relative to housing can up and down guiding movement and after movement locking to adjust spacing between described striking silk and lower test electrode.
Described housing is formed closes chamber, and upper test electrode and lower test electrode are all located at described enclosed cavity chamber interior.
Upper test electrode mounting rod upwards leads and passes described housing, and upper test electrode mounting rod coordinates with slipper seal between housing.
Upper test electrode is crossed to be threaded and is fixed on the lower end of test electrode mounting rod, and fault electric arc test unit also comprises lower test electrode mounting rod, and lower test electrode is threaded connection the upper end being fixed on lower test electrode mounting rod.
On described closed chamber, the position corresponded between upper test electrode and lower test electrode offers the transparent windows for observing fault electric arc form, and the position corresponding to transparent windows in enclosed cavity outdoor arranges the video camera being used for record trouble arc shape.
Be used for temperature sensor and the pressure transducer of the temperature and pressure of detection failure arc zone respectively in the indoor setting of described enclosed cavity, described closed chamber is provided with the outlet interface for temperature sensor and pressure transducer outlet.
Described enclosed cavity indoor are provided with the insulating gass such as sulfur hexafluoride, air, nitrogen or carbon dioxide.
The outside of described closed chamber is provided with cover plate, and cover plate is provided with density monitor and the burst disk of the density of the insulating gas for detecting enclosed cavity indoor.
Usefulness of the present invention: fault electric arc test unit comprises relative up and down and spaced upper test electrode and lower test electrode, upper test electrode or lower test electrode are provided with the striking silk for initiating failure electric arc, by applying voltage and initiating failure electric arc between upper test electrode and lower test electrode, this striking mode does not need complicated catanator, therefore fault electric arc test unit structure is simple, and cost is low.In addition, upper test electrode and lower test electrode are executed alive time span and can arbitrarily be controlled, and therefore can cause the fault electric arc of long period, are convenient to observation and the research of fault electric arc.
Further, the distance that can adjust between upper test electrode and lower test electrode by moving up and down upper test electrode mounting rod, thus change striking position, fault electric arc characteristic during the different striking position of convenient research.In addition, after the ablation of striking silk, proceeding test by moving down upper test electrode mounting rod, test of many times can be carried out continuously like this.
Accompanying drawing explanation
Fig. 1 is the structural representation of an embodiment of fault electric arc test unit in the present invention.
In figure: 1, support; 2, housing; 3, chamber is closed; 4, upper test electrode; 5, lower test electrode; 7, upper test electrode mounting rod; 8, lower test electrode mounting rod; 9, outlet interface; 10, cover plate; 11, density monitor; 12, burst disk; 13, striking silk; 14, transparent windows; 15, slipper seal structure.
Embodiment
The embodiment of fault electric arc test unit of the present invention is as shown in Figure 1: the upper test electrode mounting rod 7 that fault electric arc test unit comprises support 1, the housing 2 be located on support 1, length extend along the vertical direction and the lower test electrode mounting rod 8 that length extends along the vertical direction.Housing 2 is formed closes chamber 3.Upper test electrode mounting rod 7 upwards leads to pass and housing 2 realizes slipper seal by slipper seal structure 15 between test electrode mounting rod 7 with housing 2 coordinates.Close relative up and down in chamber 3 and be arranged at intervals with test electrode 4 and lower test electrode 5.Upper test electrode 4 is provided with the striking silk 13 for initiating failure electric arc.Upper test electrode 4 is located at the lower end of test electrode mounting rod 7, upper test electrode mounting rod 7 relatively housing can up and down guiding movement also after movement locking to adjust spacing between striking silk 13 and lower test electrode 5.Fault electric arc test unit also comprises makes the voltage of initiating failure electric arc between upper and lower test electrode apply end for applying voltage between upper test electrode 4 and lower test electrode 5, voltage applies end and comprises side a and b, applies voltage by applying voltage between A holds and B holds between upper test electrode 4 and lower test electrode 5.Upper test electrode 1 is threaded connection the lower end being located at test electrode mounting rod 7, and lower test electrode 5 is threaded connection the lower end being located at lower test electrode mounting rod 8, and upper test electrode 4 and lower test electrode 5 are all convenient to dismounting.Close the position corresponded between upper test electrode and lower test electrode on chamber 3 and offer two transparent windows for observing fault electric arc form, the installation direction angle of two transparent windows is 135 °, arranges in the position of the outer corresponding transparent windows 14 of closed chamber 3 video camera being used for record trouble arc shape.Enclosed cavity indoor 3 arranges temperature sensor and the pressure transducer of the temperature and pressure being used for detection failure arc zone respectively, and closed chamber 3 is provided with the outlet interface 9 for temperature sensor and pressure transducer outlet.The outside closing chamber 3 is provided with cover plate 10, cover plate 10 is provided with density monitor 11 and the burst disk 12 of the density for detecting the insulating gas in closed chamber 3, the change of enclosed cavity chamber interior air pressure can be observed, the accident causing cylindrical shell 2 to damage because enclosed cavity chamber internal pressure is excessive can be prevented again.Close in chamber 3 and be provided with the insulating gass such as sulfur hexafluoride, air, nitrogen or carbon dioxide.
When using this fault electric arc test unit to test, first be full of insulating gas by closed chamber 3, test electrode mounting rod 7 in slide downward, observed by transparent windows, when striking silk 13 arrives correct position, apply voltage at side a and b, produce fault electric arc, striking silk 13, upper test electrode 4 and lower test electrode 5 hair raw burn are lost.Temperature and pressure in the production process of temperature sensor and pressure transducer detection failure electric arc, the change procedure of the form of video camera shooting fault electric arc.After fault electric arc extinguishes, the voltage shift being applied to side a and b is removed, fault electric arc test unit ground connection is discharged, test electrode mounting rod 7 in slide downward, observed by transparent windows 14, when striking silk 13 arrives correct position, apply voltage at side a and b, produce fault electric arc, the production process of detection and record trouble electric arc.Repeat said process, until striking silk 13 is ablated to can not striking, Tear Down Deficiency arc test device, the striking silk more renewed, ressembles and fills insulating gas, proceeds test.
The material of upper test electrode 4 and lower test electrode 5 is the conductive materials such as copper, aluminium or iron.When using this fault electric arc test unit to test, the upper test electrode 4 of replaceable different materials and lower test electrode 5, thus the impact of the various parameter such as ablation amount of arc shape, temperature, pressure and the upper test electrode studied in the whole process that different materials produces fault electric arc and lower test electrode.By filling different insulating gass in closed chamber 3, research different insulative gas is on the impact of parameter various in fault electric arc production process.By adjusting the position of upper test electrode 4 and lower test electrode 5, studying different fault electric arcs and position occurring on the impact of parameter various in fault electric arc production process.By the electric current applying to vary in size at side a and b, research size of current is on the impact of parameter various in fault electric arc production process.
In other embodiments of fault electric arc test unit of the present invention, striking silk 13 is located on lower test electrode 5.
In other embodiments of fault electric arc test unit of the present invention, upper test electrode 4 is by being fixedly welded on upper test electrode mounting rod 7, and lower test electrode 5 is by being fixedly welded on lower test electrode mounting rod 8.
In other embodiments of fault electric arc test unit of the present invention, striking silk 13 is copper wire, aluminium wire or filamentary silver etc.
In other embodiments of fault electric arc test unit of the present invention, upper test electrode mounting rod 7 is manually driven to move along the vertical direction, and when striking silk 13 moves to correct position, with bolt by top electrode mounting rod 7 locking.
In other embodiments of fault electric arc test unit of the present invention, housing can guiding movement and upper test electrode mounting rod 7 locking after movement up and down relatively to realize upper test electrode mounting rod 7 by servomotor.
In other enforcements of fault electric arc test unit of the present invention, striking silk 13 is located on lower test electrode 5.
In other embodiments of fault electric arc test unit of the present invention, upper test electrode 4 and lower test electrode 5 are equipped with striking silk 13.
Claims (9)
1. a fault electric arc test unit, it is characterized in that: comprise relative up and down and spaced upper test electrode and lower test electrode, upper test electrode and/or lower test electrode are provided with striking silk, and described fault electric arc test unit also comprises makes the voltage of initiating failure electric arc between upper and lower test electrode apply end for applying voltage between upper test electrode and lower test electrode.
2. fault electric arc test unit according to claim 1, it is characterized in that: striking silk is located on test electrode, described fault electric arc test unit also comprises the upper test electrode mounting rod that housing and length extend along the vertical direction, upper test electrode is located at the lower end of test electrode mounting rod, upper test electrode mounting rod relative to housing can up and down guiding movement and after movement locking to adjust spacing between described striking silk and lower test electrode.
3. fault electric arc test unit according to claim 2, is characterized in that: described housing is formed closes chamber, and upper test electrode and lower test electrode are all located at described enclosed cavity chamber interior.
4. fault electric arc test unit according to claim 3, is characterized in that: upper test electrode mounting rod upwards leads and passes described housing, and upper test electrode mounting rod coordinates with slipper seal between housing.
5. fault electric arc test unit according to claim 2, it is characterized in that: upper test electrode is crossed to be threaded and is fixed on the lower end of test electrode mounting rod, fault electric arc test unit also comprises lower test electrode mounting rod, and lower test electrode is threaded connection the upper end being fixed on lower test electrode mounting rod.
6. fault electric arc test unit according to claim 3, it is characterized in that: on described closed chamber, the position corresponded between upper test electrode and lower test electrode offers the transparent windows for observing fault electric arc form, the position corresponding to transparent windows in enclosed cavity outdoor arranges the video camera being used for record trouble arc shape.
7. fault electric arc test unit according to claim 3, it is characterized in that: the temperature sensor and the pressure transducer that are used for the temperature and pressure of detection failure arc zone respectively in the indoor setting of described enclosed cavity, described closed chamber is provided with the outlet interface for temperature sensor and pressure transducer outlet.
8. fault electric arc test unit according to claim 3, is characterized in that: described enclosed cavity indoor are provided with the insulating gass such as sulfur hexafluoride, air, nitrogen or carbon dioxide.
9. fault electric arc test unit according to claim 8, is characterized in that: the outside of described closed chamber is provided with cover plate, and cover plate is provided with density monitor and the burst disk of the density of the insulating gas for detecting enclosed cavity indoor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510843084.XA CN105510815A (en) | 2015-11-27 | 2015-11-27 | Fault arc test apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510843084.XA CN105510815A (en) | 2015-11-27 | 2015-11-27 | Fault arc test apparatus |
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| CN105510815A true CN105510815A (en) | 2016-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510843084.XA Pending CN105510815A (en) | 2015-11-27 | 2015-11-27 | Fault arc test apparatus |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106501710A (en) * | 2016-10-14 | 2017-03-15 | 南方电网科学研究院有限责任公司 | A kind of switching arc experimental provision suitable for multiple gases medium |
| CN111366757A (en) * | 2018-12-25 | 2020-07-03 | 沈阳新松机器人自动化股份有限公司 | Fault arc generator for vibration environment |
| CN113281451A (en) * | 2021-04-29 | 2021-08-20 | 国网浙江省电力有限公司绍兴供电公司 | Buried metal energy transmission pipeline slicing test device |
| CN115598479A (en) * | 2022-10-26 | 2023-01-13 | 沈阳工业大学（Cn） | Arc three-dimensional high-speed imaging test device and method |
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| CN113281451A (en) * | 2021-04-29 | 2021-08-20 | 国网浙江省电力有限公司绍兴供电公司 | Buried metal energy transmission pipeline slicing test device |
| CN115598479A (en) * | 2022-10-26 | 2023-01-13 | 沈阳工业大学（Cn） | Arc three-dimensional high-speed imaging test device and method |
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Application publication date: 20160420 |