CN102331536B - Fault electric arc controllable simulative generation device - Google Patents
Fault electric arc controllable simulative generation device Download PDFInfo
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- CN102331536B CN102331536B CN 201110170039 CN201110170039A CN102331536B CN 102331536 B CN102331536 B CN 102331536B CN 201110170039 CN201110170039 CN 201110170039 CN 201110170039 A CN201110170039 A CN 201110170039A CN 102331536 B CN102331536 B CN 102331536B
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Abstract
The invention discloses a fault electric arc controllable simulative generation device, which relates to the technical field of electric arc protection and solves the technical problems in fault electric arc performance detection and generation mechanism research. The device comprises an electric arc generating mechanism, a circuit interface module and a control module, wherein the electric arc generating mechanism comprises a fixed electrode fixed on a base, a horizontal sliding table arranged on the base in a sliding mode, a movable electrode fixed on the horizontal sliding table, a step motor for driving the horizontal sliding table to slide, and a relay connected with the two electrodes; the circuit interface module comprises an alternating current electric arc voltage synchronous sampling circuit and an alternating current synchronous sampling circuit; and the control module controls the movable electrode to move through controlling the step motor so as to generate electric arc between the two electrodes, the relay is controlled to realize arc quenching, and electric arc voltage and current are acquired through the circuit interface module. The device disclosed by the invention can simulate the generation of fault electric arc, and is conductive to the related fault electric arc performance detection and the fault electric arc generation mechanism research of electrical equipment.
Description
Technical field
The present invention relates to the arc protection technology, particularly relate to a kind of technology of fault electric arc controllable simulative generation device.
Background technology
Fault electric arc causes electrical fire easily, and also damage easily electric equipment and damage, thus the casualty accident of causing and great economy, property loss.
But; also do not have at present to be used for electric equipment is carried out the equipment of the detection of dependent failure arc performance and the research of fault electric arc mechanism of production, therefore present electric equipment and electric wiring all can only use conventional transmission line protection device (such as Aftercurrent protection circuit breaker, fuse) to carry out passive protection.
Summary of the invention
For the defective that exists in the above-mentioned prior art, technical matters to be solved by this invention provides a kind of can the generation by simulated failure electric arc, is conducive to the dependent failure arc performance detection of electric equipment and the fault electric arc controllable simulative generation device of fault electric arc mechanism of production research.
In order to solve the problems of the technologies described above, a kind of fault electric arc controllable simulative generation device provided by the present invention is characterized in that: comprise arc generator structure, circuit interface module, control module;
Described arc generator structure comprises base, horizontal sliding table, screw mandrel, stepper motor, relay and two electrodes, an electrode in described two electrodes is copper rod, another electrode is carbon-point, described base is fixed on and lands on the thing, and be fixed with rectilinear horizontal slide rail at base, described horizontal sliding table is slidingly mounted on the horizontal slide rail of base, described stepper motor is installed on the base, its line shaft and screw mandrel are coupling, described screw mandrel is threaded with horizontal sliding table, described two electrodes are respectively fixed electorde, movable electrode, described fixed electorde is fixed on the base, described movable electrode is fixed on the horizontal sliding table, and with the fixed electorde electrical contact, two normally opened contacts of described relay connect respectively two electrodes;
Described circuit interface module comprises alternating current arc voltage synchronous sampling circuit, alternating current synchronized sampling circuit, described alternating current arc voltage synchronous sampling circuit comprises voltage sample amplifier, voltage transformer (VT), described voltage sample amplifier has an output terminal, two input ends, and one of them input end is received its output terminal through a voltage sample resistance; Described voltage transformer (VT) has two windings, two input ends of voltage sample amplifier are received respectively at the two ends of one of them winding, one end of another winding is received an electrode of arc generator structure through a current-limiting resistance, and the other end of this winding is received another electrode of arc generator structure; Described alternating current synchronized sampling circuit comprises current sample amplifier, current transformer, and described current sample amplifier has an output terminal, two input ends, and one of them input end is received its output terminal through a current sampling resistor; Described current transformer has an induction winding, and two input ends of current sample amplifier are received respectively at the two ends of this induction winding;
Described control module is provided with voltage signal acquisition mouth, current signal acquisition port, Electric Machine Control mouth, Control mouth, its voltage signal acquisition mouth connects the voltage sample amplifier out, its current signal acquisition port connects the output terminal of current sample amplifier, its Electric Machine Control mouth connects the stepper motor in the arc generator structure, and its Control mouth connects the control coil of the relay in the arc generator structure.
Fault electric arc controllable simulative generation device provided by the invention, utilize the stepper motor operation in the control module control arc generator structure, controlling movable electrode moves, make between two electrodes and to produce electric arc and come simulated failure electric arc to occur, and by circuit interface module collection arc voltage and flame current, come the dependent failure arc performance of electric equipment is detected and the fault electric arc mechanism of production is studied by the analysis to arc voltage and current characteristics.
Description of drawings
Fig. 1 is the structured flowchart of the fault electric arc controllable simulative generation device of the embodiment of the invention;
Fig. 2 is the structural representation of the arc generator structure in the fault electric arc controllable simulative generation device of the embodiment of the invention;
Fig. 3 is the circuit diagram of the circuit interface module in the fault electric arc controllable simulative generation device of the embodiment of the invention.
Embodiment
Below in conjunction with description of drawings embodiments of the invention are described in further detail, but present embodiment is not limited to the present invention, every employing analog structure of the present invention and similar variation thereof all should be listed protection scope of the present invention in.
As shown in Figure 1-Figure 3, a kind of fault electric arc controllable simulative generation device that the embodiment of the invention provides is characterized in that: comprise arc generator structure, circuit interface module, control module 3;
Described arc generator structure comprises base 11, horizontal sliding table 13, screw mandrel 14, stepper motor 12, relay 17 and two electrodes, an electrode in described two electrodes is copper rod, another electrode is carbon-point, described base 11 is fixed on and lands on the thing, and be fixed with rectilinear horizontal slide rail at base 11, described horizontal sliding table 13 is slidingly mounted on the horizontal slide rail of base 11, described stepper motor 12 is installed on the base 11, its line shaft and screw mandrel 14 are coupling, described screw mandrel 14 is threaded with horizontal sliding table 13, described two electrodes are respectively fixed electorde 16, movable electrode 15, described fixed electorde 16 is fixed on the base 11, described movable electrode 15 is fixed on the horizontal sliding table 13, and with fixed electorde 16 electrical contacts, two normally opened contacts of described relay 17 connect respectively two electrodes;
Described circuit interface module comprises alternating current arc voltage synchronous sampling circuit 21, alternating current synchronized sampling circuit 22, described alternating current arc voltage synchronous sampling circuit 21 comprises voltage sample amplifier A1, voltage transformer (VT) T1, described voltage sample amplifier A1 has an output terminal, two input ends, and one of them input end is received its output terminal through a voltage sample resistance R 1; Described voltage transformer (VT) T1 has two windings, two input ends of voltage sample amplifier A1 are received respectively at the two ends of one of them winding, one end of another winding is received the electrode (receiving fixed electorde 16 in the present embodiment) of arc generator structure through a current-limiting resistance R2, and the other end of this winding is received another electrode (receiving movable electrode 15 in the present embodiment) of arc generator structure; Described alternating current synchronized sampling circuit 22 comprises current sample amplifier A2, current transformer T2, and described current sample amplifier A2 has an output terminal, two input ends, and one of them input end is received its output terminal through a current sampling resistor R3; Described current transformer T2 has an induction winding, and two input ends of current sample amplifier A2 are received respectively at the two ends of this induction winding;
Described control module 3 is provided with voltage signal acquisition mouth, current signal acquisition port, Electric Machine Control mouth, Control mouth, its voltage signal acquisition mouth connects the voltage sample amplifier out in the alternating current arc voltage synchronous sampling circuit 21, its current signal acquisition port connects the output terminal of the current sample amplifier in the alternating current synchronized sampling circuit 22, its Electric Machine Control mouth connects the stepper motor 12 in the arc generator structure, and its Control mouth connects the control coil of the relay 17 in the arc generator structure.
In the embodiment of the invention, described control module also is provided with keyboard interface, collection signal delivery outlet and alerting signal delivery outlet.
In the embodiment of the invention, described control module is computing machine.
When the embodiment of the invention is used, movable electrode 15(or fixed electorde are arrived in the output terminal serial connection load 4 of power supply AC), another output terminal of power supply AC is received fixed electorde 16(or movable electrode), and the induction winding of current transformer T2 is connected with connection line induction between power supply, the load, the keyboard interface of control module is connected to a keyboard, the collection signal delivery outlet of control module is received external analysis equipment (such as oscillograph), the alerting signal delivery outlet of control module is received external alert equipment (such as warning lamp or hummer).
The job step of the embodiment of the invention is as follows:
The operator needs simulation to produce fault electric arc quantity by keyboard to the control module input first, reaches arc voltage and judges voltage signal threshold range (between the 0.3-0.8V), inputs electric arc generation instruction again;
After control module is received electric arc generation instruction, by the stepper motor forward in its Electric Machine Control mouth output motor control signal driving arc generator structure, screw mandrel and synchronous forward thereupon, so that horizontal sliding table moves towards moving apart the fixed electorde direction, fixed electorde also separates with movable electrode thereupon, so that the breakdown generation electric arc of the air between fixed electorde and the movable electrode;
Control module is by the voltage of its voltage signal acquisition mouth and alternating current arc voltage synchronous sampling circuit Real-time Collection loaded line, electric current by its current signal acquisition port and alternating current synchronized sampling circuit Real-time Collection loaded line, and voltage and electric current elder generation delivery to gathering, judge again the saltus step characteristic of the voltage that gathers, if the voltage that gathers is in arc voltage is judged the voltage signal threshold range, and the electric current that passes through to gather is judged electric current in the loaded line, then regard as generation electric arc;
After control module detects the electric arc generation, make step motor stop in the arc generator structure by its Electric Machine Control mouth output motor control signal, and electric arc generation quantity counted, when electric arc generation number count to producing fault electric arc quantity when consistent with the needs simulation of operator input, namely by blow-out signal of its Control mouth output, make armature and two the normally opened contact adhesives of the relay in the arc generator structure, thereby make arc extinction between fixed electorde and the movable electrode, then make stepper motor counter-rotating in the arc generator structure return back to the position of original mutual electrical contact by its Electric Machine Control mouth output motor control signal;
When control module is regarded as the voltage that gathers and is electric arc, namely output to the external analysis device analysis by its collection signal delivery outlet;
When detecting electric arc, control module occurs when unusual, namely make the stepper motor counter-rotating in the arc generator structure return back to the position of original mutual electrical contact by its Electric Machine Control mouth output motor control signal, and export an alerting signal by its alerting signal delivery outlet and remind the operator to external alert equipment;
It is unstable that electric arc occurs unusually comprising that electric arc burns when occuring, and has arc signal when not inputting electric arc generation instruction, and two electrode gaps are crossed and caused short circuit in the electric arc generating process.
Claims (1)
1. a fault electric arc controllable simulative generation device is characterized in that: comprise arc generator structure, circuit interface module, control module;
Described arc generator structure comprises base, horizontal sliding table, screw mandrel, stepper motor, relay and two electrodes, an electrode in described two electrodes is copper rod, another electrode is carbon-point, described base is fixed on and lands on the thing, and be fixed with rectilinear horizontal slide rail at base, described horizontal sliding table is slidingly mounted on the horizontal slide rail of base, described stepper motor is installed on the base, its line shaft and screw mandrel are coupling, described screw mandrel is threaded with horizontal sliding table, described two electrodes are respectively fixed electorde, movable electrode, described fixed electorde is fixed on the base, described movable electrode is fixed on the horizontal sliding table, and with the fixed electorde electrical contact, two normally opened contacts of described relay connect respectively two electrodes;
Described circuit interface module comprises alternating current arc voltage synchronous sampling circuit, alternating current synchronized sampling circuit, described alternating current arc voltage synchronous sampling circuit comprises voltage sample amplifier, voltage transformer (VT), described voltage sample amplifier has an output terminal, two input ends, and one of them input end is received the output terminal of described voltage sample amplifier through a voltage sample resistance; Described voltage transformer (VT) has two windings, two input ends of voltage sample amplifier are received respectively at the two ends of one of them winding, one end of another winding is received an electrode of arc generator structure through a current-limiting resistance, and the other end of this winding is received another electrode of arc generator structure; Described alternating current synchronized sampling circuit comprises current sample amplifier, current transformer, described current sample amplifier has an output terminal, two input ends, and one of them input end is received the output terminal of described current sample amplifier through a current sampling resistor; Described current transformer has an induction winding, and two input ends of current sample amplifier are received respectively at the two ends of this induction winding;
Described control module is provided with voltage signal acquisition mouth, current signal acquisition port, Electric Machine Control mouth, Control mouth, its voltage signal acquisition mouth connects the voltage sample amplifier out, its current signal acquisition port connects the output terminal of current sample amplifier, its Electric Machine Control mouth connects the stepper motor in the arc generator structure, and its Control mouth connects the control coil of the relay in the arc generator structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110170039 CN102331536B (en) | 2011-06-23 | 2011-06-23 | Fault electric arc controllable simulative generation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110170039 CN102331536B (en) | 2011-06-23 | 2011-06-23 | Fault electric arc controllable simulative generation device |
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| CN102331536A CN102331536A (en) | 2012-01-25 |
| CN102331536B true CN102331536B (en) | 2013-05-01 |
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| CN 201110170039 Expired - Fee Related CN102331536B (en) | 2011-06-23 | 2011-06-23 | Fault electric arc controllable simulative generation device |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102879669B (en) * | 2012-09-17 | 2015-05-20 | 航天科工深圳（集团）有限公司 | Failure current simulation device and working method thereof |
| CN102890256B (en) * | 2012-09-17 | 2015-05-20 | 航天科工深圳（集团）有限公司 | Failure current simulator and working method thereof |
| CN103728509B (en) * | 2013-12-13 | 2016-05-25 | 温州大学 | A kind of fault electric arc signal imitation generating means |
| CN103941046B (en) * | 2014-04-08 | 2016-09-28 | 国家电网公司 | A kind of charged disconnecting wire analoging detecting device and detection method thereof |
| CN105510815A (en) * | 2015-11-27 | 2016-04-20 | 平高集团有限公司 | Fault arc test apparatus |
| CN108776287A (en) * | 2018-06-15 | 2018-11-09 | 北京乐鸟科技有限公司 | A kind of fault electric arc detection device |
| CN110221149B (en) * | 2019-06-20 | 2021-09-07 | 应急管理部四川消防研究所 | Device and method for testing fire prevention and control capability of poor-contact ignition source prevention and control device |
| CN110646713B (en) * | 2019-09-02 | 2022-11-04 | 深圳供电局有限公司 | Fault arc simulation generating device and photovoltaic direct current system |
| CN111123040B (en) * | 2020-01-02 | 2021-02-26 | 国网湖北省电力有限公司电力科学研究院 | Equipment and method for simulating intermittent arc grounding fault of power distribution network |
| CN112798884B (en) * | 2020-12-15 | 2021-11-30 | 珠海格力电器股份有限公司 | Convenient arc burning device, control method, arc generator and application |
| CN115993508A (en) * | 2021-10-18 | 2023-04-21 | 合肥中车轨道交通车辆有限公司 | Method and device for simulating arc generation of contact ignition of bow net |
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2011
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