CN102331536A - Fault electric arc controllable simulative generation device - Google Patents
Fault electric arc controllable simulative generation device Download PDFInfo
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- CN102331536A CN102331536A CN201110170039A CN201110170039A CN102331536A CN 102331536 A CN102331536 A CN 102331536A CN 201110170039 A CN201110170039 A CN 201110170039A CN 201110170039 A CN201110170039 A CN 201110170039A CN 102331536 A CN102331536 A CN 102331536A
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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 simulation generating means.
Background technology
Fault electric arc causes electrical fire easily, and also damage electric equipment easily and damage, thus the casualty accident of causing and great economy, property loss.
But; Also be not used at present the equipment that electric equipment is carried out 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 line protective device (like residual current protecting isolating switch, fuse) to carry out passive protection.
Summary of the invention
To 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, helps the dependent failure arc performance detection of electric equipment and the fault electric arc controllable simulation generating means 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 simulation generating means provided by the present invention is characterized in that: comprise arc generator structure, circuit interface module, control module;
Said arc generator structure comprises base, horizontal sliding table, screw mandrel, stepper motor, relay and two electrodes, and an electrode in said two electrodes is a copper rod, and another electrode is a carbon-point; Said base is fixed on and lands on the thing, and on base, is fixed with rectilinear horizontal slide rail, and said horizontal sliding table is slidingly mounted on the horizontal slide rail of base; Said stepper motor is installed on the base; Its line shaft and screw mandrel are coupling, and said screw mandrel is threaded with horizontal sliding table, and said two electrodes are respectively fixed electorde, movable electrode; Said fixed electorde is fixed on the base; Said movable electrode is fixed on the horizontal sliding table, and contacts with fixed electorde is electric, and two normally opened contacts of said relay connect two electrodes respectively;
Said circuit interface module comprises alternating current arc voltage synchronous sampling circuit, alternating current synchronized sampling circuit; Said alternating current arc voltage synchronous sampling circuit comprises voltage sample amplifier, voltage transformer (VT); Said 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; Said voltage transformer (VT) has two windings; Two input ends of voltage sample amplifier are received at the two ends of one of them winding respectively; One end warp, one current-limiting resistance of another winding is received an electrode of arc generator structure, and the other end of this winding is received another electrode of arc generator structure; Said alternating current synchronized sampling circuit comprises current sample amplifier, current transformer, and said 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; Said current transformer has an induction winding, and two input ends of current sample amplifier are received at the two ends of this induction winding respectively;
Said control module is provided with voltage signal acquisition mouth, current signal acquisition port, Electric Machine Control mouth, relay 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, the control coil of the relay in its relay control mouthful connection arc generator structure.
Fault electric arc controllable simulation generating means 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 to produce electric arc and come simulated failure electric arc to take place, and gather 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 through analysis to arc voltage and current characteristics through the circuit interface module.
Description of drawings
Fig. 1 is the structured flowchart of the fault electric arc controllable simulation generating means of the embodiment of the invention;
Fig. 2 is the structural representation of the arc generator structure in the fault electric arc controllable simulation generating means of the embodiment of the invention;
Fig. 3 is the circuit diagram of the circuit interface module in the fault electric arc controllable simulation generating means 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.
Like Fig. 1-shown in Figure 3, a kind of fault electric arc controllable simulation generating means that the embodiment of the invention provided is characterized in that: comprise arc generator structure, circuit interface module, control module 3;
Said arc generator structure comprises base 11, horizontal sliding table 13, screw mandrel 14, stepper motor 12, relay 17 and two electrodes, and an electrode in said two electrodes is a copper rod, and another electrode is a carbon-point; Said base 11 is fixed on and lands on the thing, and on base 11, is fixed with rectilinear horizontal slide rail, and said horizontal sliding table 13 is slidingly mounted on the horizontal slide rail of base 11; Said stepper motor 12 is installed on the base 11; Its line shaft and screw mandrel 14 are coupling, and said screw mandrel 14 is threaded with horizontal sliding table 13, and said two electrodes are respectively fixed electorde 16, movable electrode 15; Said fixed electorde 16 is fixed on the base 11; Said movable electrode 15 is fixed on the horizontal sliding table 13, and with fixed electorde 16 electric contacts, two normally opened contacts of said relay 17 connect two electrodes respectively;
Said circuit interface module comprises alternating current arc voltage synchronous sampling circuit 21, alternating current synchronized sampling circuit 22; Said alternating current arc voltage synchronous sampling circuit 21 comprises voltage sample amplifier A1, voltage transformer (VT) T1; Said 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; Said voltage transformer (VT) T1 has two windings; Two input ends of voltage sample amplifier A1 are received at the two ends of one of them winding respectively; One end warp, the one current-limiting resistance R2 of another winding receives an electrode (receiving fixed electorde 16 in the present embodiment) of arc generator structure, and the other end of this winding is received another electrode (receiving movable electrode 15 in the present embodiment) of arc generator structure; Said alternating current synchronized sampling circuit 22 comprises current sample amplifier A2, current transformer T2, and said 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; Said current transformer T2 has an induction winding, and two input ends of current sample amplifier A2 are received at the two ends of this induction winding respectively;
Said control module 3 is provided with voltage signal acquisition mouth, current signal acquisition port, Electric Machine Control mouth, relay 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, the control coil of the relay 17 in its relay control mouthful connection arc generator structure.
In the embodiment of the invention, said control module also is provided with keyboard interface, acquired signal delivery outlet and alerting signal delivery outlet.
In the embodiment of the invention, said control module is a computing machine.
When the embodiment of the invention is used; Movable electrode 15 (or fixed electorde) is 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 acquired signal delivery outlet of control module is received external analysis equipment (like oscillograph), the alerting signal delivery outlet of control module is received external alert equipment (like warning lamp or hummer).
The job step of the embodiment of the invention is following:
The operator needs simulation to produce fault electric arc quantity through keyboard to the control module input earlier, reaches arc voltage and judges voltage signal threshold range (between the 0.3-0.8V), imports electric arc again and instructs;
After control module receives that electric arc instructs; The stepper motor that drives in the arc generator structure through its Electric Machine Control mouth output motor control signal just changes; Screw mandrel with just change synchronously thereupon; Make horizontal sliding table move towards moving apart the fixed electorde direction, fixed electorde also separates with movable electrode thereupon, makes the breakdown generation electric arc of air between fixed electorde and the movable electrode;
Control module is gathered the voltage of loaded line in real time through its voltage signal acquisition mouth and alternating current arc voltage synchronous sampling circuit; Gather the electric current of loaded line in real time through its current signal acquisition port and alternating current synchronized sampling circuit; And voltage and electric current elder generation delivery to being gathered; Judge the saltus step characteristic of the voltage of gathering again; If the voltage of being gathered is in arc voltage is judged the voltage signal threshold range, and the electric current that passes through to be gathered judges electric current is arranged in the loaded line, then regard as generation electric arc;
After control module detects the electric arc generation; Make the step motor stop in the arc generator structure through 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, promptly mouthful export a blow-out signal through its relay control, make armature and two normally opened contact adhesives of the relay in the arc generator structure; Thereby make arc extinction between fixed electorde and the movable electrode, make the stepper motor counter-rotating in the arc generator structure return back to original mutual electric position contacting through its Electric Machine Control mouth output motor control signal then;
When control module is regarded as the voltage of being gathered and is electric arc, promptly output to the external analysis device analysis through its acquired signal delivery outlet;
When detecting electric arc, control module occurs when unusual; Promptly make the stepper motor counter-rotating in the arc generator structure return back to original mutual electric position contacting, and remind the operator for external alert equipment through alerting signal of its alerting signal delivery outlet output through its Electric Machine Control mouth output motor control signal;
The electric arc instability of burning when taking place appears comprising unusually in electric arc, imports when instruction takes place electric arc not have arc signal, and two electrode gaps are crossed and caused short circuit in the electric arc generating process.
Claims (1)
1. a fault electric arc controllable simulation generating means is characterized in that: comprise arc generator structure, circuit interface module, control module;
Said arc generator structure comprises base, horizontal sliding table, screw mandrel, stepper motor, relay and two electrodes, and an electrode in said two electrodes is a copper rod, and another electrode is a carbon-point; Said base is fixed on and lands on the thing, and on base, is fixed with rectilinear horizontal slide rail, and said horizontal sliding table is slidingly mounted on the horizontal slide rail of base; Said stepper motor is installed on the base; Its line shaft and screw mandrel are coupling, and said screw mandrel is threaded with horizontal sliding table, and said two electrodes are respectively fixed electorde, movable electrode; Said fixed electorde is fixed on the base; Said movable electrode is fixed on the horizontal sliding table, and contacts with fixed electorde is electric, and two normally opened contacts of said relay connect two electrodes respectively;
Said circuit interface module comprises alternating current arc voltage synchronous sampling circuit, alternating current synchronized sampling circuit; Said alternating current arc voltage synchronous sampling circuit comprises voltage sample amplifier, voltage transformer (VT); Said 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; Said voltage transformer (VT) has two windings; Two input ends of voltage sample amplifier are received at the two ends of one of them winding respectively; One end warp, one current-limiting resistance of another winding is received an electrode of arc generator structure, and the other end of this winding is received another electrode of arc generator structure; Said alternating current synchronized sampling circuit comprises current sample amplifier, current transformer, and said 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; Said current transformer has an induction winding, and two input ends of current sample amplifier are received at the two ends of this induction winding respectively;
Said control module is provided with voltage signal acquisition mouth, current signal acquisition port, Electric Machine Control mouth, relay 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, the control coil of the relay in its relay control mouthful connection 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 true CN102331536A (en) | 2012-01-25 |
| CN102331536B 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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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102879669A (en) * | 2012-09-17 | 2013-01-16 | 航天科工深圳（集团）有限公司 | Failure current simulation device and working method thereof |
| CN102890256A (en) * | 2012-09-17 | 2013-01-23 | 航天科工深圳（集团）有限公司 | Failure current simulator and working method thereof |
| CN103728509A (en) * | 2013-12-13 | 2014-04-16 | 温州大学 | Fault arc signal imitation generation device |
| CN103941046A (en) * | 2014-04-08 | 2014-07-23 | 国家电网公司 | Charged disconnected wire simulation 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 |
| CN110221149A (en) * | 2019-06-20 | 2019-09-10 | 应急管理部四川消防研究所 | Poor contact ignition source prevention and control device fire prevention and control aptitude tests device and method |
| CN110646713A (en) * | 2019-09-02 | 2020-01-03 | 深圳供电局有限公司 | Fault arc simulation generating device and photovoltaic direct current system |
| CN111123040A (en) * | 2020-01-02 | 2020-05-08 | 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 |
| CN111193190A (en) * | 2020-02-21 | 2020-05-22 | 艾迪迪电气（苏州）有限公司 | Fault arc generating device |
| 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 |
| 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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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102890256A (en) * | 2012-09-17 | 2013-01-23 | 航天科工深圳（集团）有限公司 | Failure current simulator and working method thereof |
| CN102879669A (en) * | 2012-09-17 | 2013-01-16 | 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 |
| 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 |
| CN103728509B (en) * | 2013-12-13 | 2016-05-25 | 温州大学 | A kind of fault electric arc signal imitation generating means |
| CN103728509A (en) * | 2013-12-13 | 2014-04-16 | 温州大学 | Fault arc signal imitation generation device |
| 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 |
| CN103941046A (en) * | 2014-04-08 | 2014-07-23 | 国家电网公司 | Charged disconnected wire simulation 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 |
| CN110221149A (en) * | 2019-06-20 | 2019-09-10 | 应急管理部四川消防研究所 | Poor contact ignition source prevention and control device fire prevention and control aptitude tests device and method |
| 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 |
| CN110646713A (en) * | 2019-09-02 | 2020-01-03 | 深圳供电局有限公司 | Fault arc simulation generating device and photovoltaic direct current system |
| 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 |
| CN111123040A (en) * | 2020-01-02 | 2020-05-08 | 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 |
| CN111193190A (en) * | 2020-02-21 | 2020-05-22 | 艾迪迪电气（苏州）有限公司 | Fault arc generating device |
| 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 |
| 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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