CN201751857U - Tripping characteristic test device for molded case circuit breaker - Google Patents
Tripping characteristic test device for molded case circuit breaker Download PDFInfo
- Publication number
- CN201751857U CN201751857U CN2009202949824U CN200920294982U CN201751857U CN 201751857 U CN201751857 U CN 201751857U CN 2009202949824 U CN2009202949824 U CN 2009202949824U CN 200920294982 U CN200920294982 U CN 200920294982U CN 201751857 U CN201751857 U CN 201751857U
- Authority
- CN
- China
- Prior art keywords
- breaker
- tripping characteristic
- electric current
- test
- clamp
- 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
- Breakers (AREA)
Abstract
The utility model relates to a tripping characteristic test device for a molded case circuit breaker, which comprises a test bed body and an external clamp group, wherein the test bed body is provided with a column type voltage regulator, a multi-magnetic circuit current generator, a current stabilization control system and a current output pneumatic clamp, the multi-magnetic circuit current generator is connected with the current output pneumatic clamp, the column type voltage regulator is used for controlling input voltage, the current output pneumatic clamp comprises a fixed clamp support, a clamp contact, a conductive terminal, a movable clamp connecting copper bar, a movable clamp cylinder and an acting piston, the conductive terminal is tightly connected with the clamp contact, and the movable clamp connecting copper bar is matched and connected with the external clamp group. The tripping characteristic multi-purpose test device for the molded case circuit breaker is particularly applicable to carrying out time-delay action tripping characteristic test and instantaneous action tripping characteristic test on the heavy-current molded case circuit breakers with a variety of different brands and different type specifications on one test bed.
Description
Technical field
The utility model relates to a kind of breaker of plastic casing test unit, relate in particular to a kind of breaker of plastic casing tripping characteristic test unit, the utility model is suitable for finishing delayed releasing characteristic, the instantaneous trip attribute testing of the big current stage breaker of plastic casing of multiple different model on a testing table.
Background technology
Isolating switch is a kind of most important protection electrical equipment, and national economy and people's lives are played great function.In order to guarantee its product quality, must test the various performances of isolating switch with testing table.Traditional a kind of estrade of breaker of plastic casing testing table can only be fit to a kind of circuit-breaker testing of model, and a kind of estrade can only be done a pilot project (can only do the delayed releasing attribute testing as the time-delay platform, can only do the instantaneous trip attribute testing for instantaneous).Because the kind model of breaker of plastic casing is various, need to make various breaker test stands to be fit to the needs of different model specification, different tests project, caused a large amount of equipment investments, also result in hand cramps simultaneously to test.
Summary of the invention
The purpose of this utility model is to provide a kind of breaker of plastic casing tripping characteristic testing table, can be fit to various model breaker of plastic casing to its main performance---and delayed releasing characteristic, instantaneous trip characteristic are tested.
In order to realize the foregoing invention purpose, the utility model adopts following technical scheme:
A kind of breaker of plastic casing tripping characteristic is used test unit more, comprise testing table body and outer welding fixture group, described testing table body is equipped with the pillar pressure regulator, the multipath magnetic circuit current feedback circuit, current stabilization control system and electric current output air-actuated jaw, the multipath magnetic circuit current feedback circuit links to each other with electric current output air-actuated jaw, pillar pressure regulator control input voltage, electric current output air-actuated jaw comprises the stationary fixture support, the anchor clamps contact, conducting terminal, floating holder connects copper bar, floating holder cylinder and action piston, conducting terminal closely is connected with the anchor clamps contact, and floating holder connection copper bar closes with outer welding fixture flock mating and is connected.
Air-actuated jaw, electric current that outer welding fixture group is equipped with various different model specifications connect copper bar and Moving caster, and air-actuated jaw comprises action piston in cylinder, the cylinder, be connected electric current output contact, the spacing base plate on the action piston and be contained in the conductive contact of piston tip.
Described pillar pressure regulator is made up of 2～4 posts.
Described multipath magnetic circuit current feedback circuit is made up of 1～4 magnetic circuit.
Described outer welding fixture group is that the Extended Time Tests anchor clamps of the different model specification breaker of plastic casing of rated current (400～2000) A, instantaneous test fixture are formed.
The many big current class breaker of plastic casing that are particularly suitable for needing to carry out multiple different brands, different model specification on a testing table with test unit of the utility model breaker of plastic casing tripping characteristic carry out deferred action tripping characteristic, the test of snap action tripping characteristic.During test, tested isolating switch is put into chucking position, press cylinder valve, the floating holder contact compresses test product on the one hand, the piston action of the air-actuated jaw of testing table electric current output simultaneously, the electric current output contact that the floating holder electric current is connected copper bar and testing table compresses.During test, on the current stabilization controller, configure required test current, testing table will be regulated the output voltage of pressure regulator and the different magnetic circuits of current feedback circuit automatically, make it to produce the time-delay that needs or instantaneous stability test electric current and make the test product action of threading off within a certain period of time, with the deferred action tripping characteristic or the snap action tripping characteristic of mensuration isolating switch.After test is finished, press air valve, test product is connected copper bar with the electric current of floating holder and floating holder and the testing table body unclamps, and different anchor clamps easily can change the outfit.
Description of drawings
Fig. 1: the utility model breaker of plastic casing tripping characteristic is used test unit testing table body construction synoptic diagram more;
The backsight structural representation of Fig. 2: Fig. 1;
Fig. 3: external clamp structure synoptic diagram;
Fig. 4: the electric current output air-actuated jaw structural representation in the utility model.
Numbering explanation in the accompanying drawing:
1 is that outer welding fixture connects copper bar, and 2 is the current stabilization controller, and 3 is indicating instrument, and 4 is outer welding fixture, 5 is movable castor, and 6 is the multipath magnetic circuit current feedback circuit, and 7 is the pillar pressure regulator, 8 is the circuit switching contactor, and 9 is checking table electric current output air-actuated jaw, and 10 are electric current connection flexible cord.
11 are checking table electric current output copper bar, 12 anchor clamps cylinders, 13 is the action piston in the cylinder, and 14 for being connected the electric current output contact on the piston, and 15 is spacing base plate, 16 is fixed support, 17 are that floating holder connects copper bar, and 19 is conducting terminal, and 20 is anchor clamps contact (19 closely be connected with 20), 21 are the action piston, and 22 is the floating holder cylinder.
Embodiment
The utility model is described further by specific embodiment below in conjunction with Figure of description 1,2,3,4.
Embodiment 1: present embodiment provides a kind of breaker of plastic casing tripping characteristic test unit, comprise testing table body and outer welding fixture 4, outer welding fixture 4 connects outer welding fixture on flexible cord 10 and the intrinsic electric current output of the testing table air-actuated jaw 9 by electric current, and to be connected copper bar 1 continuous, the testing table body comprises pillar pressure regulator 7 is housed, multipath magnetic circuit current feedback circuit 6, current stabilization control system 2 and electric current output air-actuated jaw 9, multipath magnetic circuit current feedback circuit 6 links to each other with electric current output air-actuated jaw 9, pillar pressure regulator 7 control input voltages also are provided with indicating instrument 3 and show relevant data on the testing table body.Electric current output air-actuated jaw 9 comprises that stationary fixture support 23, anchor clamps contact 20, conducting terminal 19, floating holder connect copper bar 17, floating holder cylinder 22 and action piston 21, conducting terminal 19 closely is connected with anchor clamps contact 20, and floating holder connects copper bar 17 and outer welding fixture is connected.Outer welding fixture comprises the action piston 13 in fixed support 16, electric current output copper bar 11, anchor clamps cylinder 12 and the anchor clamps cylinder, and is connected the electric current output contact 14 on the action piston 13, and position is provided with spacing base plate 15 in the middle of it.
When needs carry out certain model specification circuit-breaker testing, this floating holder is pushed testing table, it connects the top that copper bar enters testing table electric current output air-actuated jaw base plate 5, when air valve is opened, on the one hand, piston 11 actions, drive anchor clamps contact 10 and move downward, compress test product; The cylinder piston action of electric current output air-actuated jaw in the testing table simultaneously, the electric current that drive electric current output contact 4 compresses floating holder connects copper bar 1, has finished being electrically connected of floating holder and checking table output current.After test is finished, unclamp air valve, the contact that floating holder contact and test product, electric current are exported air-actuated jaw be connected copper bar and unclamp, test product easily can change the outfit.
Embodiment 2: do the test of DZ20 400A breaker of plastic casing delayed releasing, by relevant criterion as can be known, the Extended Time Tests electric current is 2.5 times of rated current, promptly need checking table can export the delaying current of 1000 peaces at least, at this moment, select the pillar pressure regulator of 2 posts, the current feedback circuit of 2 magnetic circuits can satisfy the requirement of test.On the other hand, choose the outer welding fixture of DZ20 400A delayed releasing test, outer welding fixture is pushed testing table after tested isolating switch is put into chucking position, make the connection copper bar enter the connecting hole of testing table.During on-test, open the anchor clamps air valve, the cylinder piston of outer welding fixture moves downwards, drives the anchor clamps contact, compresses tested isolating switch.Simultaneously, 9 actions of the electric current of checking table output air-actuated jaw, its piston drives electric current output contact and compresses outer welding fixture connection copper bar.
Then, on testing table current stabilization controller, configure the Extended Time Tests electric current of 1000 peaces, press test switch, the current stabilization controller will directly be controlled the output voltage of pillar pressure regulator according to the signal of output test electric current, make it to export all the time the constant test current of 1000 peaces, after the action of tested circuit breaker tripping, operation of recording time automatically on the controller, can draw the delayed releasing characteristic of isolating switch.
Do the test of DZ20 400A breaker of plastic casing instantaneous trip as need, by relevant criterion as can be known, instantaneous test current is 10 times of rated current, promptly need checking table can export the momentary current of 4000 peaces at least, at this moment, select the pillar pressure regulator of 2 posts, the current feedback circuit of 3 magnetic circuits can satisfy the requirement of test.On the other hand, choose the outer welding fixture of DZ20 400A instantaneous trip test, outer welding fixture is pushed testing table after tested isolating switch is put into chucking position, make the connection copper bar enter the connecting hole of testing table.During test, open the anchor clamps air valve, the cylinder piston of outer welding fixture moves downwards, drives the anchor clamps contact, compresses tested isolating switch, and simultaneously, 9 actions of the electric current of checking table output air-actuated jaw drive the connection copper bar that electric current output contact compresses outer welding fixture.
Then, on testing table current stabilization controller, configure the instantaneous test current and the action control time of 4000 peaces, press test switch, the current stabilization controller will directly be controlled the output voltage of pillar pressure regulator according to the signal of output test electric current, make it to export all the time the constant test current of 4000 peaces, after tested circuit breaker tripping action, controller can draw the instantaneous trip characteristic of isolating switch with the automatic operation of recording time.If tested isolating switch was failure to actuate in the time of setting, controller will send signal, force test circuit disconnect (because of electric current too big in order to avoid the test overload).
Embodiment 3:
Do the test of DZ20 1250A breaker of plastic casing delayed releasing as need, by relevant criterion as can be known, the Extended Time Tests electric current is 2.5 times of rated current, promptly need checking table can export the delaying current of 2500 peaces at least, at this moment, select the pillar pressure regulator of 4 posts, the current feedback circuit of 3 magnetic circuits can satisfy the requirement of test.On the other hand, choose the outer welding fixture of DZ20 1250A delayed releasing test, outer welding fixture is pushed testing table after tested isolating switch is put into chucking position, make it to export air-actuated jaw with the electric current of testing table and be connected by connecting copper bar.All the other operations and test method are with embodiment 2.
Do the test of DZ20 1250A breaker of plastic casing instantaneous trip as need, by relevant criterion as can be known, instantaneous test current is 10 times of rated current, promptly need checking table can export the momentary current of 12500 peaces at least, at this moment, select the pillar pressure regulator of 4 posts, the current feedback circuit of 4 magnetic circuits can satisfy the requirement of test.On the other hand, choose the outer welding fixture of DZ20 1250A instantaneous trip test, outer welding fixture is pushed testing table after tested isolating switch is put into chucking position, make it to export air-actuated jaw with the electric current of testing table and be connected by connecting copper bar.All the other operations and test method are with embodiment 2.
Claims (5)
1. a breaker of plastic casing tripping characteristic is used test unit more, comprise testing table body and outer welding fixture group, it is characterized in that described testing table body is equipped with the pillar pressure regulator, the multipath magnetic circuit current feedback circuit, current stabilization control system and electric current output air-actuated jaw, the multipath magnetic circuit current feedback circuit links to each other with electric current output air-actuated jaw, pillar pressure regulator control input voltage, electric current output air-actuated jaw comprises the stationary fixture support, the anchor clamps contact, conducting terminal, floating holder connects copper bar, floating holder cylinder and action piston, conducting terminal closely is connected with the anchor clamps contact, and floating holder connection copper bar closes with outer welding fixture flock mating and is connected.
2. a kind of breaker of plastic casing tripping characteristic according to claim 1 is used test unit more, it is characterized in that outer welding fixture group is equipped with the air-actuated jaw of various different model specifications, electric current and connects copper bar and Moving caster, air-actuated jaw comprises action piston in cylinder, the cylinder, be connected electric current output contact, the spacing base plate on the action piston and be contained in the conductive contact of piston tip.
3. a kind of breaker of plastic casing tripping characteristic according to claim 1 is used test unit more, it is characterized in that described pillar pressure regulator is made up of 2～4 posts.
4. a kind of breaker of plastic casing tripping characteristic according to claim 1 is used test unit more, it is characterized in that described multipath magnetic circuit current feedback circuit is made up of 1～4 magnetic circuit.
5. a kind of breaker of plastic casing tripping characteristic according to claim 1 is used test unit more, it is characterized in that described outer welding fixture group forms for the Extended Time Tests anchor clamps of the different model specification breaker of plastic casing of rated current (400～2000) A, instantaneous test fixture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202949824U CN201751857U (en) | 2009-12-24 | 2009-12-24 | Tripping characteristic test device for molded case circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202949824U CN201751857U (en) | 2009-12-24 | 2009-12-24 | Tripping characteristic test device for molded case circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201751857U true CN201751857U (en) | 2011-02-23 |
Family
ID=43602265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202949824U Expired - Fee Related CN201751857U (en) | 2009-12-24 | 2009-12-24 | Tripping characteristic test device for molded case circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201751857U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103645436A (en) * | 2013-11-30 | 2014-03-19 | 德力西电气有限公司 | Calibration structure and calibration method of thermal overload relay tripping distance |
| CN104251974A (en) * | 2014-09-04 | 2014-12-31 | 浙江正泰电器股份有限公司 | Circuit breaker residual current operating characteristic detection level adjusting mechanism and detection mechanism |
| CN105241652A (en) * | 2015-10-24 | 2016-01-13 | 上海永继电气股份有限公司 | Rotating shaft fatigue test device of molded case breaker |
| CN106125032A (en) * | 2016-06-30 | 2016-11-16 | 温州大学 | A kind of mutual inductor measuring test-run a machine based on program controlled constant current source |
| CN109307836A (en) * | 2017-07-26 | 2019-02-05 | 苏州润桐专利运营有限公司 | A kind of detection method of the detection device based on circuit breaker characteristic |
-
2009
- 2009-12-24 CN CN2009202949824U patent/CN201751857U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103645436A (en) * | 2013-11-30 | 2014-03-19 | 德力西电气有限公司 | Calibration structure and calibration method of thermal overload relay tripping distance |
| CN104251974A (en) * | 2014-09-04 | 2014-12-31 | 浙江正泰电器股份有限公司 | Circuit breaker residual current operating characteristic detection level adjusting mechanism and detection mechanism |
| CN105241652A (en) * | 2015-10-24 | 2016-01-13 | 上海永继电气股份有限公司 | Rotating shaft fatigue test device of molded case breaker |
| CN105241652B (en) * | 2015-10-24 | 2017-11-10 | 上海永继电气股份有限公司 | The rotating shaft fatigue experimental device of breaker of plastic casing |
| CN106125032A (en) * | 2016-06-30 | 2016-11-16 | 温州大学 | A kind of mutual inductor measuring test-run a machine based on program controlled constant current source |
| CN106125032B (en) * | 2016-06-30 | 2018-12-04 | 温州大学 | A kind of mutual inductor measuring test-run a machine based on program controlled constant current source |
| CN109307836A (en) * | 2017-07-26 | 2019-02-05 | 苏州润桐专利运营有限公司 | A kind of detection method of the detection device based on circuit breaker characteristic |
| CN109307836B (en) * | 2017-07-26 | 2020-09-04 | 浙江丰源电器配件有限公司 | Detection method of detection device based on circuit breaker characteristics |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201751857U (en) | Tripping characteristic test device for molded case circuit breaker | |
| CN201984144U (en) | Spot differential coordination tester of portable direct current breaker | |
| CN102331536B (en) | Fault electric arc controllable simulative generation device | |
| CN110031756B (en) | DC contactor performance test conversion circuit and service life test method | |
| CN111796182A (en) | AC contactor electric service life test method and device based on large-capacity electronic accompanying test article | |
| CN202548291U (en) | Special controller for testing mechanical behavior of pole-mounted vacuum automatic distribution switch | |
| CN204666789U (en) | A kind of end of vacuum circuit breaker examines worktable | |
| CN214254245U (en) | Intelligent permanent magnet vacuum contactor | |
| CN102109574A (en) | Test device of tripping characteristic of plastic-shell circuit breaker | |
| CN101414530B (en) | Electric appliance rapid disjunction motion mechanism based on main circuit current excitation | |
| CN106569125A (en) | Automatic test apparatus for airplane DC switch controller | |
| CN202332750U (en) | Control and protection switch | |
| CN203927005U (en) | Electric valve control circuit and the electric operated valve instrument that comprises this circuit | |
| CN201639040U (en) | Electric connector for low-voltage circuit breaker test | |
| CN202423143U (en) | Electromagnetic switching device | |
| CN205941823U (en) | Specified surplus switch -on breaking capacity testing arrangement | |
| CN101807758A (en) | Test electric connector of low voltage breaker | |
| CN208999069U (en) | A kind of small size breaker device iron core detection fixture | |
| CN203339496U (en) | Live anti-misoperation grounding switch device for high-voltage switch cabinet | |
| CN114487799A (en) | Simplify cubical switchboard mechanical characteristic test auxiliary device of wiring | |
| CN205484750U (en) | Magnetic induction loop testing arrangement | |
| CN203799951U (en) | Single-phase magnetic operating mechanism vacuum circuit breaker and intelligent vacuum circuit breaker system | |
| CN102628924A (en) | Special controller for pole-mounted vacuum automatic power distribution switch mechanical property testing | |
| CN108535006A (en) | A kind of small size breaker device iron core detection fixture | |
| CN202523649U (en) | Novel electromagnetic switching device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110223 Termination date: 20141224 |
|
| EXPY | Termination of patent right or utility model |