CN202126467U - Low-voltage arc controllable simulation generation device - Google Patents
Low-voltage arc controllable simulation generation device Download PDFInfo
- Publication number
- CN202126467U CN202126467U CN2011202138770U CN201120213877U CN202126467U CN 202126467 U CN202126467 U CN 202126467U CN 2011202138770 U CN2011202138770 U CN 2011202138770U CN 201120213877 U CN201120213877 U CN 201120213877U CN 202126467 U CN202126467 U CN 202126467U
- Authority
- CN
- China
- Prior art keywords
- arc
- voltage
- current
- relay
- fixed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Testing Relating To Insulation (AREA)
Abstract
The utility model discloses a low-voltage arc controllable simulation generation device and relates to the technical field of arc protection, aiming at solving the technical problems of a fault arc performance detection and generation mechanism research. The low-voltage arc controllable simulation generation device comprises an arc generation mechanism, a circuit interface module and a control module. The arc generation mechanism comprises a fixed electrode, a horizontal sliding table, a movable electrode, a stepping motor and a relay, wherein the fixed electrode is fixed on a base, the horizontal sliding table is arranged on the base in a sliding way, the movable electrode is fixed on the horizontal sliding table, the stepping motor is used for driving the horizontal sliding table to slide, and the relay is connected with two electrodes. The circuit interface module comprises an AC (Alternating Current) arc voltage synchronous sampling circuit and an AC current synchronous sampling circuit. The control module controls the movable electrode to move by controlling the stepping motor, so that arc generates between the two electrodes, the relay is controlled to realize the quenching of arc, and the voltage and the current of the arc are collected through the circuit interface module. The low-voltage arc controllable simulation generation device can simulate the generation of fault arc and is beneficial to the detection of performances of related fault arc of electric appliances and the research on the generation mechanism of the fault arc.
Description
Technical field
The utility model relates to the arc protection technology, particularly relates to a kind of technology of low-tension 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.
The utility model content
To the defective that exists in the above-mentioned prior art; The utility model technical matters to be solved provides a kind of can the generation by simulated failure electric arc, helps the dependent failure arc performance detection of electric equipment and the low-tension 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 low-tension arc controllable simulation generating means that the utility model provided 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.
The low-tension arc controllable simulation generating means that the utility model provides; 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 low-tension arc controllable simulation generating means of the utility model embodiment;
Fig. 2 is the structural representation of the arc generator structure in the low-tension arc controllable simulation generating means of the utility model embodiment;
Fig. 3 is the circuit diagram of the circuit interface module in the low-tension arc controllable simulation generating means of the utility model embodiment.
Embodiment
Embodiment to the utility model describes in further detail below in conjunction with description of drawings, but present embodiment is not limited to the utility model, and analog structure of every employing the utility model and similar variation thereof all should be listed the protection domain of the utility model in.
Like Fig. 1-shown in Figure 3, a kind of low-tension arc controllable simulation generating means that the utility model embodiment is 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.
Among the utility model embodiment, said control module also is provided with keyboard interface, acquired signal delivery outlet and alerting signal delivery outlet.
Among the utility model embodiment, said control module is a computing machine.
When the utility model embodiment uses; 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 utility model embodiment 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 low-tension 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 |
|---|---|---|---|
| CN2011202138770U CN202126467U (en) | 2011-06-23 | 2011-06-23 | Low-voltage arc controllable simulation generation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202138770U CN202126467U (en) | 2011-06-23 | 2011-06-23 | Low-voltage arc controllable simulation generation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202126467U true CN202126467U (en) | 2012-01-25 |
Family
ID=45489533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202138770U Expired - Fee Related CN202126467U (en) | 2011-06-23 | 2011-06-23 | Low-voltage arc controllable simulation generation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202126467U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103698677A (en) * | 2014-01-17 | 2014-04-02 | 福州大学 | Low-voltage arc fault test and analysis system |
| CN104198862A (en) * | 2014-09-17 | 2014-12-10 | 公安部沈阳消防研究所 | Alternating-current fault arc simulation experiment device and control method thereof |
| CN113358987A (en) * | 2021-06-02 | 2021-09-07 | 中国科学技术大学 | Experimental device for igniting combustible by arc discharge |
-
2011
- 2011-06-23 CN CN2011202138770U patent/CN202126467U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103698677A (en) * | 2014-01-17 | 2014-04-02 | 福州大学 | Low-voltage arc fault test and analysis system |
| CN103698677B (en) * | 2014-01-17 | 2016-05-04 | 福州大学 | Low-tension arc fault test and analytical system |
| CN104198862A (en) * | 2014-09-17 | 2014-12-10 | 公安部沈阳消防研究所 | Alternating-current fault arc simulation experiment device and control method thereof |
| CN104198862B (en) * | 2014-09-17 | 2016-11-30 | 公安部沈阳消防研究所 | AC fault electric arc analogue experiment installation and control method thereof |
| CN113358987A (en) * | 2021-06-02 | 2021-09-07 | 中国科学技术大学 | Experimental device for igniting combustible by arc discharge |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102331536B (en) | Fault electric arc controllable simulative generation device | |
| WO2013104197A1 (en) | Method for testing electromagnetic compatibility of electronic mutual inductor | |
| CN210166469U (en) | Relay state monitoring device | |
| CN201740830U (en) | Surge protector thermal stability testing device | |
| CN202126467U (en) | Low-voltage arc controllable simulation generation device | |
| CN103441508A (en) | Multipurpose low-voltage intelligent capacitor | |
| CN202285026U (en) | Voltage sag generator | |
| CN103701141A (en) | Novel multifunctional coding switch | |
| CN110031756B (en) | DC contactor performance test conversion circuit and service life test method | |
| CN203839955U (en) | Novel multifunctional code switch with communication module | |
| CN203839956U (en) | Novel multifunctional encoder | |
| CN109490805A (en) | A kind of portable fault detector detection device | |
| CN204857640U (en) | Energy -saving electric leakage circuit breaker | |
| CN201243195Y (en) | Actuating apparatus for middle/small power industrial frequency three-phase transformer | |
| CN202102088U (en) | Circuit breaker testing device | |
| CN216083041U (en) | Multi-path power supply safety monitoring switch module | |
| CN203025289U (en) | Comprehensive relay protection tester based on self-protection technology | |
| CN202018764U (en) | 10kV outgoing feeder secondary circuit simulator | |
| CN102169144B (en) | Direct-current interference testing device and system | |
| CN204101697U (en) | A kind of High Voltage Circuit Breaker Contacts simulation burn-out test loop apparatus | |
| CN209217700U (en) | A kind of low-voltage motor protection device | |
| CN104702091A (en) | Soft start circuit of switching power supply | |
| CN203839954U (en) | Novel multifunctional code switch with temperature control function | |
| CN102879669A (en) | Failure current simulation device and working method thereof | |
| CN102983546A (en) | Self-restoring overvoltage and undervoltage protection device capable of closing or breaking at zero crossing points |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120125 Termination date: 20120623 |