CN105301488A - Switch contact characteristic measurement testing device - Google Patents
Switch contact characteristic measurement testing device Download PDFInfo
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- CN105301488A CN105301488A CN201510735318.9A CN201510735318A CN105301488A CN 105301488 A CN105301488 A CN 105301488A CN 201510735318 A CN201510735318 A CN 201510735318A CN 105301488 A CN105301488 A CN 105301488A
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Abstract
The invention discloses a switch contact characteristic measurement testing device. The testing device includes a fixed support and a movable support capable of performing linear reciprocating motion relative to the fixed support, a static contact connecting conductor is arranged on the fixed support, a static contact installing part and a static wiring end used for being connected with a static contact resistance measuring line are arranged on the static contact connecting conductor, a moving contact connecting conductor is arranged on the movable support, and a movable contact installing part and a movable wiring end used for being connected with a movable contact resistance measuring line are arranged on the moving contact connecting conductor. The testing device provided by the invention can replace different moving and static contacts to perform tests of simulating moving and static contact turning-on and turning-off processes, is independent of performing contact testing on a whole high-voltage switch, and is relatively strong in universality. The switch contact characteristic measurement testing device overcomes the limitation that tests can only be carried out in a switch arc extinguishing chamber, a conducting loop is short, influence of other interference factors does not exist, and measured data are relatively accurate.
Description
Technical field
The present invention relates to high-voltage switch gear testing equipment field, be specifically related to switch contact feature measurement test unit.
Background technology
Switch contact is one of critical component of high-voltage switch gear, is mainly used in the electrical contact between two relative motion conductors.The characteristic quality of contact directly has influence on the functional realiey of high-voltage switch gear.The key characteristic of switch contact mainly contains: contact resistance, structural stress, surface abrasion etc.For the optimal design of contact, there is very important directive significance by the change of these characteristics of experimental study.Traditional research method generally uses whole high-voltage switch gear to carry out the correlative study at contact place, but can produce following problem: (1), do not have specialty contact characteristic measuring device, experimental study can only be carried out in existing switch arc-chutes, poor universality; (2) contact, in switch arc-chutes generally has three places at least, contact trait-treatment interaction between three places, and structure of contact terminal is not identical yet, cannot study for single contact object; (3), arc-chutes inner structure is complicated, and galvanic circle is longer, and uncontrollable factor is too much, cannot ensure result of study accuracy; (4), arc-chutes are arranged in fixing cavity, and the layout of survey sensor and data line is very inconvenient, and change contact and take time and effort; (5), the translational speed of contact is non-adjustable; (6), the collision of contact moment is unobservable.
Summary of the invention
The object of this invention is to provide a kind of switch contact feature measurement test unit, existingly in arc-chutes, carry out testing the inaccurate and unobservable technical matters of the measurement data that causes to solve.
In order to realize above object, the technical scheme of switch contact feature measurement test unit of the present invention is as follows: switch contact feature measurement test unit, comprise fixed support and can the travel(l)ing rest of fixed support straight reciprocating motion relatively, described fixed support is provided with static contact bonding conductor, static contact bonding conductor is provided with the static contact installation portion for installing static contact and the quiet terminals for connecting static contact resistance measurement line, described travel(l)ing rest is provided with moving contact bonding conductor, moving contact bonding conductor is provided with the moving contact installation portion for installing moving contact and the dynamic terminals for connecting moving contact resistance measurement line, the relative fixed support motion of travel(l)ing rest can make moving contact and static contact realize closed and disconnected.
Also comprise the guide rail for described travel(l)ing rest motion, described fixed support is positioned on described guide rail, and described guide rail is provided with and carries out spacing spacing fixed sturcture to described fixed support.
Described fixed support comprises fixing dolly and is located at the static contact supporting insulator on fixing dolly, and described static contact bonding conductor is arranged on described static contact supporting insulator.
Described travel(l)ing rest comprises guide holder and is located at the moving contact supporting insulator on guide holder, and described moving contact bonding conductor is arranged on described moving contact supporting insulator.
Described guide holder is guiding billy gate.
Described moving contact supporting insulator is disc insulator.
Described switch contact feature measurement test unit also comprises the drive unit driving travel(l)ing rest motion, and drive unit comprises the gear train for linear movement output.
Described drive unit comprises power source, and power source is servomotor, and the output shaft of servomotor is connected with gear train.
Described gear train is screw-nut body.
Described moving contact installation portion is provided with moving contact mounting groove, and described static contact installation portion is provided with static contact mounting groove, and the opening of described moving contact mounting groove and described static contact mounting groove is towards being oppositely arranged.
Beneficial effect of the present invention: test unit of the present invention can be changed different dynamic/static contacts and carry out simulating the test of process that dynamic/static contact closes, disconnects, and do not rely on and carry out contact test to whole high-voltage switch gear, versatility is stronger.Overcome the limitation can only carrying out testing in switch arc-chutes, make galvanic circle short, do not have other disturbing factors to affect, measurement data is more accurate.And wiring is convenient, change contact convenient, be also convenient to action when observing contact and the abrasion condition after multiple-contact.
Accompanying drawing explanation
Fig. 1 is the structural representation of switch contact feature measurement test unit of the present invention.
Embodiment
The embodiment of switch contact feature measurement test unit of the present invention: as shown in Figure 1, switch contact feature measurement test unit comprise fixed support for installing static contact 8 and can relatively fixed support straight reciprocating motion, for installing the travel(l)ing rest of moving contact 10, also comprise the guide rail 1 for travel(l)ing rest rectilinear motion.Fixed support is positioned on guide rail 1, and fixed support comprises fixing dolly 20, and guide rail 1 is provided with and carries out the spacing spacing fixed sturcture in left and right to fixing dolly 20, and spacing fixed sturcture adopts about two spaced limited blocks 2.Fixing dolly is provided with disc insulator 5, and disc insulator 5 is provided with the static contact bonding conductor 7 of transition electrical connection, and static contact bonding conductor 7 screw thread is arranged on the center conductor 6 of disc insulator.Disc insulator 5 is fixedly connected on fixing dolly 20 by the first web joint 18.The left side of static contact bonding conductor 7 is provided with the quiet terminals 4 for connecting static contact resistance measurement line 3, quiet terminals are that resistance measurement clamps, for connecting static contact resistance measurement line 3 on the left of it, dish-type part on the right side of it is bolted on center conductor 6, and static contact resistance measurement line and static contact bonding conductor are conductings.Static contact bonding conductor has the static contact installation portion for installing static contact, and static contact installation portion is provided with the static contact mounting groove of opening towards the right side, and static contact 8 screw thread is arranged in this static contact mounting groove.Static contact 8 is connected with contact stress measurement line 9.
Travel(l)ing rest comprises can the guiding billy gate 19 of side-to-side movement on guide rail, guiding billy gate 19 is provided with disc insulator 12, disc insulator 12 is provided with moving contact bonding conductor 11, the moving contact installation portion had for installing moving contact 10 of moving contact bonding conductor 11, is provided with the dynamic terminals 13 for connecting moving contact resistance measurement line 14 on the right side of it.Dynamic terminals are identical with the structure of quiet terminals.Moving contact installation portion is provided with the moving contact mounting groove of opening towards a left side.Moving contact 10 screw thread is arranged in this moving contact mounting groove.The opening of moving contact mounting groove and static contact mounting groove is towards being oppositely arranged.Disc insulator 12 is fixedly connected on billy gate by the second web joint 17.
Switch contact feature measurement test unit also comprises the drive unit driving the motion of guiding billy gate, and drive unit comprises screw-nut body as gear train and servomotor 15, and servomotor 15 is as power source.One end of nut screw 16 is connected with the output shaft of servomotor, and the other end of nut screw 16 is connected with guiding billy gate 19.Leading screw and nut mechanism drives guiding, and billy gate is relatively support bracket fastened moves to the left or to the right, can realize moving contact and realize closing or disconnecting with static contact, tests to carry out measurement.The guiding translational speed of billy gate and the translational speed of moving contact.Switch contact feature measurement test unit also comprises moving contact, the resistance of static contact in the process of divide-shut brake and the data control unit of stress value for gathering measurement, contact is provided with stress measurement sensor.Data control unit can also send corresponding control signal to servomotor, the power producing characteristics of change servomotor, to change the speed of screw-nut body, thus change the translational speed of moving contact, the closing speed that analog switch is different, to measure contact emergent property under friction speed in real time.The observation of contact abrasion situation can be carried out after the certain number of times of Contact Breaking/Making Operations.
Moving contact resistance measurement line is all connected with data control unit with static contact resistance measurement line, moving contact to contact with static contact realize closing a floodgate time, form loop, electric current, the magnitude of voltage of contact can be recorded by data control unit, and then measure the resistance in loop.Although bonding conductor, center conductor and terminals all have certain resistance value, their resistance value can be removed when calculating, and obtain the resistance of contact.When replacing contact, when measuring the loop resistance value of different contacts, can directly contrast the data recorded.
In the present embodiment, adopt the version of fixing dolly with guiding billy gate, be convenient to the movement of dolly on guide rail, the limited block on removing guide rail, fixing dolly also adopts a set of screw-nut body to drive, can simulate static contact and moving contact all action to realize the process of divide-shut brake.In other embodiments, fixing dolly itself can adopt self-locking manner to maintain static, and limited block also can change into and arrange stopper slot on guide rail.In other embodiments, only for guiding billy gate provides guide rail, can be fixed because fix dolly itself.In other embodiments, also the form of dolly can not be adopted, adopt the form of slide block guiding movement on guide rail, the bottom of travel(l)ing rest is arranged to can on guide rail the version of the guide holder of guiding movement, disc insulator is arranged on guide holder, can arrange dovetail groove on guide rail particularly, the bottom of guide holder arranges the structure with dovetail groove adaptation, with can guiding movement.
In the present embodiment, the structure of two disc insulators 5,12 is identical, in other embodiments, disc insulator can change other the supporting insulator that can play supports insulative effect into, and what support moving contact be moving contact supporting insulator, support static contact be static contact supporting insulator, it can be correspondingly column, tabular, as long as supporting insulator can clamp corresponding bonding conductor, plays the effect of support.Other embodiment in, if not disc insulator, terminals and bonding conductor can be arranged all-in-one-piece structure, be arranged on supporting insulator together.
Moving contact installation portion, static contact installation portion arrange corresponding static contact mounting groove, moving contact mounting groove respectively, make the installation of dynamic/static contact, change conveniently, in other embodiments, according to the structure of contact, can adopt and use bolt to be fixed on corresponding bonding conductor by contact.
In other embodiments, can not arrange servomotor, the producer that can be used by reality configures servomotor voluntarily, connects on gear train.In other embodiments, the servomotor of drive unit also can with other power source, as oil motor etc.Driving mechanism also can adopt pinion and rack.
Claims (10)
1. switch contact feature measurement test unit, it is characterized in that: comprise fixed support and can the travel(l)ing rest of fixed support straight reciprocating motion relatively, described fixed support is provided with static contact bonding conductor, static contact bonding conductor is provided with the static contact installation portion for installing static contact and the quiet terminals for connecting static contact resistance measurement line, described travel(l)ing rest is provided with moving contact bonding conductor, moving contact bonding conductor is provided with the moving contact installation portion for installing moving contact and the dynamic terminals for connecting moving contact resistance measurement line, the relative fixed support motion of travel(l)ing rest can make moving contact and static contact realize closed and disconnected.
2. switch contact feature measurement test unit according to claim 1, it is characterized in that: also comprise the guide rail for described travel(l)ing rest motion, described fixed support is positioned on described guide rail, and described guide rail is provided with and carries out spacing spacing fixed sturcture to described fixed support.
3. switch contact feature measurement test unit according to claim 1, it is characterized in that: described fixed support comprises fixing dolly and is located at the static contact supporting insulator on fixing dolly, and described static contact bonding conductor is arranged on described static contact supporting insulator.
4. switch contact feature measurement test unit according to claim 1, it is characterized in that: described travel(l)ing rest comprises guide holder and is located at the moving contact supporting insulator on guide holder, and described moving contact bonding conductor is arranged on described moving contact supporting insulator.
5. switch contact feature measurement test unit according to claim 4, is characterized in that: described guide holder is guiding billy gate.
6. switch contact feature measurement test unit according to claim 4, is characterized in that: described moving contact supporting insulator is disc insulator.
7. switch contact feature measurement test unit according to claim 1, is characterized in that: described switch contact feature measurement test unit also comprises the drive unit driving travel(l)ing rest motion, and drive unit comprises the gear train for linear movement output.
8. switch contact feature measurement test unit according to claim 7, is characterized in that: described drive unit comprises power source, and power source is servomotor, and the output shaft of servomotor is connected with gear train.
9. switch contact feature measurement test unit according to claim 8, is characterized in that: described gear train is screw-nut body.
10. the switch contact feature measurement test unit according to claim 1 to 9 any one, it is characterized in that: described moving contact installation portion is provided with moving contact mounting groove, described static contact installation portion is provided with static contact mounting groove, and the opening of described moving contact mounting groove and described static contact mounting groove is towards being oppositely arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510735318.9A CN105301488B (en) | 2015-11-03 | 2015-11-03 | Switch contact feature measurement experimental rig |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510735318.9A CN105301488B (en) | 2015-11-03 | 2015-11-03 | Switch contact feature measurement experimental rig |
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| CN105301488A true CN105301488A (en) | 2016-02-03 |
| CN105301488B CN105301488B (en) | 2018-04-03 |
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| CN201510735318.9A Expired - Fee Related CN105301488B (en) | 2015-11-03 | 2015-11-03 | Switch contact feature measurement experimental rig |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106646218A (en) * | 2017-02-10 | 2017-05-10 | 云南电网有限责任公司电力科学研究院 | Device for simulating high-voltage circuit breakers and method for simulating and testing same |
| CN106918781A (en) * | 2017-04-24 | 2017-07-04 | 北京汽车研究总院有限公司 | Portable inspectiont circuit arrangement and detection method |
| CN109283461A (en) * | 2017-07-19 | 2019-01-29 | 平高集团有限公司 | A kind of experimental rig for the double gas chamber high-voltage switch gear break performances of simulation test |
| CN109283460A (en) * | 2017-07-19 | 2019-01-29 | 平高集团有限公司 | It is a kind of for testing the experimental rig of self extinguishing type high-voltage switch gear break performance |
| CN109283458A (en) * | 2017-07-19 | 2019-01-29 | 平高集团有限公司 | Self extinguishing type high-voltage switch gear break performance experimental rig |
| CN109283459A (en) * | 2017-07-19 | 2019-01-29 | 平高集团有限公司 | Double gas chamber high-voltage switch gear break performance simulation test devices |
| CN109425825A (en) * | 2017-08-16 | 2019-03-05 | 平高集团有限公司 | Double gas chamber double movement high voltages switch break performance simulation test device |
| CN110346712A (en) * | 2019-07-15 | 2019-10-18 | 南方电网科学研究院有限责任公司 | A kind of EFFECTIVE MEDIUM recovery test circuit |
| CN111122662A (en) * | 2020-01-17 | 2020-05-08 | 福州大学 | Contact material simulation test device based on linear motor and working method thereof |
| CN111198152A (en) * | 2020-01-03 | 2020-05-26 | 平高集团有限公司 | Ablation resistance testing device and method for moving arc contact |
| CN114544408A (en) * | 2022-02-08 | 2022-05-27 | 平高集团有限公司 | Contact wear resistance test fixture |
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| CN201497795U (en) * | 2009-09-23 | 2010-06-02 | 河海大学 | Tapping switch contact off fault diagnostic device based on vibration signal amplitude-frequency changes |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106646218A (en) * | 2017-02-10 | 2017-05-10 | 云南电网有限责任公司电力科学研究院 | Device for simulating high-voltage circuit breakers and method for simulating and testing same |
| CN106918781B (en) * | 2017-04-24 | 2020-04-17 | 北京汽车研究总院有限公司 | Portable detection circuit device and detection method |
| CN106918781A (en) * | 2017-04-24 | 2017-07-04 | 北京汽车研究总院有限公司 | Portable inspectiont circuit arrangement and detection method |
| CN109283461A (en) * | 2017-07-19 | 2019-01-29 | 平高集团有限公司 | A kind of experimental rig for the double gas chamber high-voltage switch gear break performances of simulation test |
| CN109283460A (en) * | 2017-07-19 | 2019-01-29 | 平高集团有限公司 | It is a kind of for testing the experimental rig of self extinguishing type high-voltage switch gear break performance |
| CN109283458A (en) * | 2017-07-19 | 2019-01-29 | 平高集团有限公司 | Self extinguishing type high-voltage switch gear break performance experimental rig |
| CN109283459A (en) * | 2017-07-19 | 2019-01-29 | 平高集团有限公司 | Double gas chamber high-voltage switch gear break performance simulation test devices |
| CN109425825A (en) * | 2017-08-16 | 2019-03-05 | 平高集团有限公司 | Double gas chamber double movement high voltages switch break performance simulation test device |
| CN110346712A (en) * | 2019-07-15 | 2019-10-18 | 南方电网科学研究院有限责任公司 | A kind of EFFECTIVE MEDIUM recovery test circuit |
| CN111198152A (en) * | 2020-01-03 | 2020-05-26 | 平高集团有限公司 | Ablation resistance testing device and method for moving arc contact |
| CN111122662A (en) * | 2020-01-17 | 2020-05-08 | 福州大学 | Contact material simulation test device based on linear motor and working method thereof |
| CN111122662B (en) * | 2020-01-17 | 2024-06-04 | 福州大学 | Linear motor-based contact material simulation test device and working method thereof |
| CN114544408A (en) * | 2022-02-08 | 2022-05-27 | 平高集团有限公司 | Contact wear resistance test fixture |
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| CN105301488B (en) | 2018-04-03 |
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