CN105021981A - Switching device arc experiment device - Google Patents
Switching device arc experiment device Download PDFInfo
- Publication number
- CN105021981A CN105021981A CN201510406078.8A CN201510406078A CN105021981A CN 105021981 A CN105021981 A CN 105021981A CN 201510406078 A CN201510406078 A CN 201510406078A CN 105021981 A CN105021981 A CN 105021981A
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- China
- Prior art keywords
- static contact
- electric arc
- experimental provision
- switching electric
- polished rod
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Abstract
The invention discloses a switching device arc experiment device which comprises a mechanical part and a control part electrically connected to the mechanical part. The mechanical part comprises a base. The base is provided with a support block and a static contact base support block. A screw rod and a polished rod, which are parallel, are bridged on the support block and the static contact base support block. The polished rod is provided with a moving contact device. The lower end of the moving contact device is sleeved on the screw rod. One end of the screw rod is fixedly connected with a stepping motor. The stepping motor drives the screw rod to drive the moving contact device to slide on the polished rod. The static contact base support block is equipped with a static contact device. The stepping motor and the static contact device are electrically connected with the control part. The beneficial effects are that the experiment device is stable to operate, small in error and high in precision.
Description
Technical field
The present invention relates to arc test technical field, particularly a kind of device for switching electric arc experimental provision about the experiment of device for switching contact breaking arc.
Background technology
Isolating switch is electric equipment very important in electric power system, and it not only plays a part on-off circuit, also plays a part disengagement failure electric current.Being applied to all departments of Aero-Space and national economy at present, is one of national defence sophisticated technology, the indispensable primary element of advanced industry and civil equipment institute.Because circuit breaker failure brings huge property loss even to threaten the life of people may to country and people, it is very important for therefore developing reliable height, cut-offfing the isolating switch that capacity is large, the life-span is long.The arc erosion when key factor affecting the isolating switch life-span is contact disjunction.Therefore study the impact of various factors on arc erosion and seem especially important.But arc burning process is the acting in conjunction of various factors, the many factors related to, have and solve difficulty greatly, result of calculation is difficult to the difficult problems such as checking.Therefore the research of electric arc experimental provision can be deeply understand arcing mechanism, analysis arc characteristic, quantization influence factor, and then the method proposing fast arc extinction is effectively tested to improve isolating switch performance and verifies support.
Because the factor affecting arcing is a lot, as tested environmental stress, contact breaking speed, arc power, transverse magnetic field, longitudinal magnetic field, contact over travel, clearance between open contacts contact pressure, load current, supply voltage etc., all belong to the factor affecting electric arc, therefore the impact that a large amount of experiments produces to study them electric arc is needed, domestic and international each electric arc theoretical research mechanism all expands the exploitation to electric arc experimental provision, but existing device all can only carry out the experiment of above-mentioned or several influence factors.And device performance index is uneven, conventional efficient is low, and reliable experiment result degree cannot ensure, cannot provide effective guarantee, study a set of perfect in shape and function for this reason for electric arc theoretical research, and the electric arc experimental provision of high efficient and reliable is very necessary.
Summary of the invention
The object of the invention is to solve the problem, devising a kind of device for switching electric arc experimental provision.
Realizing above-mentioned purpose technical scheme of the present invention is, a kind of device for switching electric arc experimental provision, the control section comprising mechanical part and be electrically connected with it, described mechanical part comprises base, described base is provided with back-up block and static contact base supports block, described back-up block and static contact base supports block is added is provided with the leading screw and polished rod that are parallel to each other, described polished rod is provided with trigger device, the lower end of described trigger device is socketed on leading screw, one end of described leading screw is fixedly connected with stepper motor, described stepper motor drives leading screw to drive trigger device to slide on polished rod, described static contact base supports block is provided with static contact head device, described stepper motor and static contact head device are electrically connected with control section respectively.
Described trigger device is by be arranged on polished rod and the sliding shoe that can slide along polished rod, the moving contact that is arranged on the moving contact pedestal on sliding shoe and is arranged on moving contact pedestal one end are formed jointly.
The lower end of described sliding shoe is socketed on leading screw, and slides along polished rod under the driving of leading screw.
Described static contact head device is by the static contact pedestal be arranged on static contact base supports block, is positioned at static contact base supports block and the Compress Spring be enclosed within static contact pedestal and the static contact be positioned on static contact pedestal one end are formed jointly.
Described static contact pedestal and moving contact pedestal are located on the same line.
Static contact on described static contact pedestal is relative with the moving contact position on moving contact pedestal.
Described control section is by the controller be electrically connected respectively with stepper motor and static contact head device, the data acquisition be connected with controller by signal adjustment circuit and memory storage.
Described controller is that the letter treasured controlled based on PLC reaches ET96 type controllor for step-by-step motor.
Described data acquisition and memory storage are by the Tyke oscillograph be connected by signal adjustment circuit with controller, are connected the oscillography of matching used Tyke pop one's head in P1500A and jointly forming with the current sensor that controller is connected by signal adjustment circuit with Tyke oscillograph.
Described controller and static contact are electrically connected.
The device for switching electric arc experimental provision utilizing technical scheme of the present invention to make, operate steadily, reliable experiment result degree is high, and can test various factors, conventional efficient is high, volume little (at high-low temperature chamber, and can testing in high empty van).
Accompanying drawing explanation
Fig. 1 is the structural representation of the mechanical part of device for switching electric arc experimental provision of the present invention;
Fig. 2 is the structural representation of the control section of device for switching arc test device of the present invention;
Fig. 3 is the connection block diagram of data acquisition of the present invention and memory storage;
In figure, 1, base; 2, back-up block; 3, static contact base supports block; 4, leading screw; 5, polished rod; 6, stepper motor; 7, sliding shoe; 8, moving contact pedestal; 9, moving contact; 10, static contact pedestal; 11, Compress Spring; 12, static contact; 13, controller; 14, circuit for signal conditioning; 15, data acquisition and memory storage; 16, Tyke oscillograph; 17, Tyke oscillography probe P1500A; 18, current sensor.
Embodiment
Below in conjunction with accompanying drawing, the present invention is specifically described, as Figure 1-3, a kind of device for switching electric arc experimental provision, the control section comprising mechanical part and be electrically connected with it, described mechanical part comprises base (1), described base is provided with back-up block (2) and static contact base supports block (3), described back-up block and static contact base supports block is added is provided with the leading screw (4) and polished rod (5) that are parallel to each other, described polished rod is provided with trigger device, the lower end of described trigger device is socketed on leading screw, one end of described leading screw is fixedly connected with stepper motor (6), described stepper motor drives leading screw to drive trigger device to slide on polished rod, described static contact base supports block is provided with static contact head device, described stepper motor and static contact head device are electrically connected with control section respectively.Wherein, described trigger device is by be arranged on polished rod and the sliding shoe (7) that can slide along polished rod, the moving contact (9) that is arranged on the moving contact pedestal (8) on sliding shoe and is arranged on moving contact pedestal one end are formed jointly; The lower end of described sliding shoe (7) is socketed on leading screw, and slides along polished rod under the driving of leading screw; Described static contact head device is by the static contact pedestal (10) be arranged on static contact base supports block, is positioned at static contact base supports block and the Compress Spring (11) be enclosed within static contact pedestal and the static contact (12) be positioned on static contact pedestal one end are formed jointly; Described static contact pedestal (10) and moving contact pedestal are located on the same line; Static contact on described static contact pedestal (10) is relative with the position of the moving contact on moving contact pedestal; Described control section is by the controller (13) be electrically connected respectively with stepper motor and static contact head device, the data acquisition be connected with controller by signal adjustment circuit (14) and memory storage (15); Described controller (13) is that the letter treasured controlled based on PLC reaches ET96 type controllor for step-by-step motor; Described data acquisition and memory storage (15) are by the Tyke oscillograph (16) be connected by signal adjustment circuit with controller, are connected pop one's head in P1500A (17) and the current sensor (18) that is connected by signal adjustment circuit with controller of matching used Tyke oscillography jointly form with Tyke oscillograph; Described controller (13) and static contact are electrically connected.
The feature of the technical program adopts mechanical part and control section combination to form a whole set of experimental provision, mechanical part adopts the physical construction having Compress Spring, control section adopts the drives structure of controller control step motor, the compression realizing motion is separated, static contact is avoided and moving contact collides the concussion brought by Compress Spring, make experimental result more accurate, adopt stepper motor to drive simultaneously, make error limitation in less scope.
The technical program mainly solves the difficult problem that theoretical analysis or result of calculation in electric arc theoretical research process are difficult to verify.Meet the requirement to kinds of experiments condition in electric arc experimentation, solve the problem that conventional efficient is low, test confidence level difference.Understand arcing mechanism, analysis arc characteristic for deep, and then the method proposing quick, effective arc extinguishing provides effective support to improve isolating switch performance.
In the technical program, the initial breaking speed of contact can be regulated by following steps: first selected clearance between open contacts, then regulates decrement by controller, regulates initial velocity magnitude finally by adjustment given number of pulses per second.The size of transverse magnetic field can be regulated by following steps: first regulate magnetic field supports bar to regulate the Kai Ju center of magnetic field center and contact pointing at one, then regulated the size in magnetic field by the scale of the mark regulating magnetic field pole.The size of longitudinal magnetic field can regulate magnetic field size by changing added sheet number.
Technique scheme only embodies the optimal technical scheme of technical solution of the present invention, and those skilled in the art all embody principle of the present invention to some variations that wherein some part may be made, and belong within protection scope of the present invention.
Claims (10)
1. a device for switching electric arc experimental provision, the control section comprising mechanical part and be electrically connected with it, it is characterized in that, described mechanical part comprises base (1), described base is provided with back-up block (2) and static contact base supports block (3), described back-up block and static contact base supports block is added is provided with the leading screw (4) and polished rod (5) that are parallel to each other, described polished rod is provided with trigger device, the lower end of described trigger device is socketed on leading screw, one end of described leading screw is fixedly connected with stepper motor (6), described stepper motor drives leading screw to drive trigger device to slide on polished rod, described static contact base supports block is provided with static contact head device, described stepper motor and static contact head device are electrically connected with control section respectively.
2. device for switching electric arc experimental provision according to claim 1, it is characterized in that, described trigger device is by be arranged on polished rod and the sliding shoe (7) that can slide along polished rod, the moving contact (9) that is arranged on the moving contact pedestal (8) on sliding shoe and is arranged on moving contact pedestal one end are formed jointly.
3. device for switching electric arc experimental provision according to claim 2, is characterized in that, the lower end of described sliding shoe (7) is socketed on leading screw, and slides along polished rod under the driving of leading screw.
4. device for switching electric arc experimental provision according to claim 1, it is characterized in that, described static contact head device is by the static contact pedestal (10) be arranged on static contact base supports block, is positioned at static contact base supports block and the Compress Spring (11) be enclosed within static contact pedestal and the static contact (12) be positioned on static contact pedestal one end are formed jointly.
5. device for switching electric arc experimental provision according to claim 4, is characterized in that, described static contact pedestal (10) and moving contact pedestal are located on the same line.
6. device for switching electric arc experimental provision according to claim 5, is characterized in that, the static contact on described static contact pedestal (10) is relative with the position of the moving contact on moving contact pedestal.
7. device for switching electric arc experimental provision according to claim 1, it is characterized in that, described control section is by the controller (13) be electrically connected respectively with stepper motor and static contact head device, the data acquisition be connected with controller by signal adjustment circuit (14) and memory storage (15).
8. device for switching electric arc experimental provision according to claim 7, is characterized in that, described controller (13) reaches ET96 type controllor for step-by-step motor based on the letter treasured that PLC controls.
9. device for switching electric arc experimental provision according to claim 7, it is characterized in that, described data acquisition and memory storage (15) are by the Tyke oscillograph (16) be connected by signal adjustment circuit with controller, are connected pop one's head in P1500A (17) and the current sensor (18) that is connected by signal adjustment circuit with controller of matching used Tyke oscillography jointly form with Tyke oscillograph.
10. device for switching electric arc experimental provision according to claim 7, is characterized in that, described controller (13) and static contact are electrically connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510406078.8A CN105021981B (en) | 2015-07-11 | 2015-07-11 | Device for switching electric arc experimental provision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510406078.8A CN105021981B (en) | 2015-07-11 | 2015-07-11 | Device for switching electric arc experimental provision |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105021981A true CN105021981A (en) | 2015-11-04 |
| CN105021981B CN105021981B (en) | 2019-01-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510406078.8A Expired - Fee Related CN105021981B (en) | 2015-07-11 | 2015-07-11 | Device for switching electric arc experimental provision |
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| Country | Link |
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| CN (1) | CN105021981B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106646166A (en) * | 2016-12-27 | 2017-05-10 | 辽宁工程技术大学 | Switching device electric arc and electric contact experimental facility and contact resistance measuring method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6084756A (en) * | 1999-01-22 | 2000-07-04 | Eaton Corporation | Apparatus for testing protection of an electric power distribution circuit by an arc fault circuit breaker |
| CN101487877A (en) * | 2009-02-25 | 2009-07-22 | 哈尔滨工业大学 | Electric arc test method and apparatus for contact head disjunction of switch apparatus |
| CN203479441U (en) * | 2013-08-28 | 2014-03-12 | 重庆工商职业学院 | Switch electric contact head automatic detection device |
| CN104764966A (en) * | 2015-04-20 | 2015-07-08 | 河北工业大学 | Test simulation device for simulating alternating current arc faults |
| CN204789931U (en) * | 2015-07-11 | 2015-11-18 | 河北工业大学 | Switch electrical apparatus electric arc experimental apparatus |
-
2015
- 2015-07-11 CN CN201510406078.8A patent/CN105021981B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6084756A (en) * | 1999-01-22 | 2000-07-04 | Eaton Corporation | Apparatus for testing protection of an electric power distribution circuit by an arc fault circuit breaker |
| CN101487877A (en) * | 2009-02-25 | 2009-07-22 | 哈尔滨工业大学 | Electric arc test method and apparatus for contact head disjunction of switch apparatus |
| CN203479441U (en) * | 2013-08-28 | 2014-03-12 | 重庆工商职业学院 | Switch electric contact head automatic detection device |
| CN104764966A (en) * | 2015-04-20 | 2015-07-08 | 河北工业大学 | Test simulation device for simulating alternating current arc faults |
| CN204789931U (en) * | 2015-07-11 | 2015-11-18 | 河北工业大学 | Switch electrical apparatus electric arc experimental apparatus |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106646166A (en) * | 2016-12-27 | 2017-05-10 | 辽宁工程技术大学 | Switching device electric arc and electric contact experimental facility and contact resistance measuring method |
| CN106646166B (en) * | 2016-12-27 | 2019-10-11 | 辽宁工程技术大学 | A kind of device for switching electric arc and electrical contact experimental provision and measuring contact resistance method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105021981B (en) | 2019-01-04 |
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