CN104697694B - A kind of detection method of circuit breaker short circuit protection detection means and application described device - Google Patents
A kind of detection method of circuit breaker short circuit protection detection means and application described device Download PDFInfo
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- CN104697694B CN104697694B CN201510149522.2A CN201510149522A CN104697694B CN 104697694 B CN104697694 B CN 104697694B CN 201510149522 A CN201510149522 A CN 201510149522A CN 104697694 B CN104697694 B CN 104697694B
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Abstract
The present invention provides a kind of circuit breaker short circuit protection detection means for being applied to electric power system circuit breaker detection technique field, perforation (4) is set on the lug boss (3) on the device body (1) of described detection means, suit thrust meter thimble (5) in perforation (4), draw bar (6) is set in circuit breaker base (2), thrust meter thimble (5) one end extends to draw bar (6) position in circuit breaker base (2), thrust meter thimble (5) other end is connected with thrust meter (7), dynamic iron core (13) is connected by dynamic iron core support (15) with circuit breaker base (2), spring (16) one end of moving in wink is connected with dynamic iron core support (15), spring (16) other end of moving in wink is connected with the regulating arm (17) of dynamic iron core (13).Device of the invention, simple structure can accurately adjust spring collapsing length of moving in wink according to maximum tripping force numerical value, reduce contact abrasion, and reduce power network is influenceed by short-circuit test.
Description
Technical field
It is to be related to a kind of circuit breaker short circuit to protect more specifically the invention belongs to power train breaker detection technique field
Shield detection means, the present invention also relates to the method that breaker is detected using the detection means.
Background technology
Breaker of plastic casing (hereinafter referred to as breaker) generally realizes short-circuit protection using beating type electromagnet, commonly uses distribution and uses
The short-circuit protection value of breaker is typically set in the range of 10In ± 20%, for the short-circuit protection for protecting motor breaker
Value is then set in the range of 12In ± 20%.Due to the big ditty of spring force of moving in wink of breaker clapper-type short-circuit protection structure
Examination is extremely difficult, and domestic and international low voltage electrical apparatus industry is not all the time using the method for testing solve problem of directly debugging.It is existing
The detection method of short-circuit protection, is tested on professional instantaneous monitor station, is exported by low voltage and high current mode
Short circuit current detected value needed for breaker, equipment is by adjusting voltage parameter, and single-phase to A, B, C respectively and AC, AB, BC string effect are logical
The lower limit and higher limit of short circuit current are crossed, (this value is 8In for distribution breaker, for protection when electric current is in lower limit
Motor breaker this value is then 9.6In), the tripping mechanism akinesia of breaker；When electric current is in the upper limit (for distribution
With breaker, this value is 12In, and for protection motor breaker, this value is then 14.4In), the tripping mechanism of breaker is certain
Act, that is, meet properties of product requirement.But breaker is when short-circuit protection experiment is done after assembling and setting is good, because wink is dynamic
The coefficient of elasticity error of spring, error in length, two mouth hanging range errors of spring of moving in wink and extension the dynamic unshakable in one's determination of spring of moving in wink are adjusted
Whole arm and movement arm bending error etc., have impact on circuit breaker short circuit protection value error range more than technical requirements, therefore use this
The method of kind will just can ensure that the short-circuit protection value of breaker is adjusted in the range of setting by multiple experiment.Due to test
Short circuit current is very big, even if breaker is under low voltage condition, is tested by multiple arcing, the burning of the dynamic and static contact of breaker
Ruin still very serious；Experiment is in order to meet the requirement of short-circuit protection parameter bound, it is necessary to be powered repeatedly, just can adjust, and
It is extremely inefficient.Because short-circuit test capacity is big, test more to power network number of shocks, influence power network is steadily frequent.It is indicated above,
It is not quite reasonable that current industry protects detection method using the circuit breaker short circuit of the instantaneous monitor station of specialty, is only solved before testing
Certainly short-circuit protection adjustment problem, just can guarantee that the short-circuit protection of breaker reduces debugging number of times when test, or even
The short-circuit protection performance for being to ensure that breaker need not be detected.
The content of the invention
The technical problems to be solved by the invention are：For the deficiencies in the prior art, there is provided a kind of simple structure,
Conveniently and efficiently the maximum tripping force numerical value of circuit breaker tripping can be driven to measure after rotation draw bar, so that basis
Maximum tripping force numerical value accurately adjusts spring collapsing length of moving in wink, it is ensured that normal operation of circuit breaker, reduces contact abrasion, reduces electricity
The circuit breaker short circuit protection detection means that net is influenceed by short-circuit test.
Techniques discussed above is solved the problems, such as, the technical scheme that the present invention takes is：
The present invention protects detection means, including device body, described device body to be set to for a kind of circuit breaker short circuit
The structure that can be fit together with circuit breaker base, sets lug boss on device body, perforation is set on lug boss, described
Movable set thrust meter thimble in perforation, circuit breaker base inside sets the traction that circuit breaker tripping can be driven after rotation
Bar, described thrust meter thimble one end is arranged to extend to the structure at the draw bar position inside circuit breaker base, thrust meter top
The pin other end is fixedly connected with thrust meter, and dynamic iron core and static iron core are set in described circuit breaker base, and dynamic iron core is by moving iron
Core support is connected with circuit breaker base, and wink, dynamic spring one end was connected with dynamic iron core support, move in described wink the spring other end with move
The regulating arm connection of iron core.
Described device body is set to n character form structures, and the detection plate of multiple protrusions is set on device body, each inspection
The structure that there is gap is set between drafting board block, a lug boss is respectively provided with each detection plate, on each lug boss
Perforation in respectively one thrust meter thimble of movable set, each thrust meter thimble is connected with a thrust meter respectively, described
Thrust meter be configured to measure draw bar drive circuit breaker tripping when maximum tripping force numerical value structure.
Described thrust meter is configured to the structure for driving draw bar to rotate, and draw bar, inspection are set in circuit breaker base
When the device body and circuit breaker base for surveying device fit together, one end of the thrust meter thimble on each lug boss sets respectively
It is set to and extends to structure inside circuit breaker base, each thrust meter push rod one end is near draw bar.
Threaded portion is respectively provided with each described thrust meter push rod, adjusting nut is screwed on each threaded portion, adjust spiral shell
Mother is arranged to adjust the structure that thrust meter thimble inserts circuit breaker base internal depth, and device body is inserted by left groove and right groove
On circuit breaker base.
Described dynamic iron core is configured to the structure relative to dynamic iron core holder pivots, and thrust meter thimble is configured to
Drive draw bar to rotate by driving dynamic iron core to rotate, realize the structure of circuit breaker tripping, described regulating arm is configured to
Pull the structure of wink dynamic spring elongation or shortening.
The present invention also relates to a kind of detection method of the detection means described in application, the step of described detection method
For：1) device body of detection means and circuit breaker base are fit together；2) exerted a force in thrust meter thimble by thrust meter
On, thrust meter thimble promotes draw bar to rotate, and draw bar drives circuit breaker tripping after rotating；3) thrust meter is on force thrust meter top
During pin, maximum tripping force numerical value during draw bar drive circuit breaker tripping is measured；4) the maximum tripping force for measuring thrust meter
Numerical value is contrasted with the design requirement numerical value of circuit breaker tripping, maximum tripping force numerical value in design requirement number range,
Show that breaker maximum tripping force numerical value meets the requirements.
It is maximum when the maximum tripping force numerical value that thrust meter is measured is contrasted with the design requirement numerical value of circuit breaker tripping
Tripping force numerical value shows that breaker maximum tripping force numerical value is undesirable, by weight not in design requirement number range
The regulating arm regulation of new regulation dynamic iron core is retested according to above-mentioned steps again along dynamic its length after regulation, until
Maximum tripping force numerical value is fallen in design requirement number range.
When the device body of detection means fits together with circuit breaker base, device body is inserted by left groove and right groove
On circuit breaker base, the connection of device body and circuit breaker base is realized, when thrust meter thimble promotes dynamic iron core, thrust meter top
Pin vertically exerts a force on dynamic iron core surface.
Using technical scheme, following beneficial effect can be obtained：
Circuit breaker short circuit of the present invention protects detection means, can be by the device body of detection means and breaker base
Seat fits together；Exerted a force on thrust meter thimble by thrust meter 7, thrust meter thimble promotes draw bar to rotate, and draw bar turns
Circuit breaker tripping is driven after dynamic；Thrust meter exert a force thrust meter thimble when, measure draw bar drive circuit breaker tripping when most
Big tripping force numerical value；The maximum tripping force numerical value that thrust meter is measured is contrasted with the design requirement numerical value of circuit breaker tripping,
Maximum tripping force numerical value shows that breaker maximum tripping force numerical value meets the requirements in design requirement number range.At this moment, will
When the maximum tripping force numerical value of thrust meter measurement is contrasted with the design requirement numerical value of circuit breaker tripping, maximum tripping force numerical value
Not in design requirement number range, show that breaker maximum tripping force numerical value is undesirable, by readjusting dynamic iron
The regulating arm regulation of core is retested, until maximum tripping force according to above-mentioned steps again along dynamic its length after regulation
Numerical value is fallen in design requirement number range.Circuit breaker short circuit of the present invention protects detection means, simple structure, Neng Goutong
Detection means is crossed, conveniently and efficiently drives the maximum tripping force numerical value of circuit breaker tripping to measure after rotation draw bar,
So as to accurately adjust spring collapsing length of moving in wink according to maximum tripping force numerical value, it is ensured that normal operation of circuit breaker, contact mill is reduced
Damage, reduce power network is influenceed by short-circuit test, it is ensured that short-circuiting device dependable performance.
Brief description of the drawings
Brief description is made to the content expressed by each accompanying drawing of this specification and the mark in figure below：
Fig. 1 is structure when circuit breaker short circuit protection detection means of the present invention is combined together with circuit breaker base
Schematic diagram；
Fig. 2 is the structural representation of the device body of circuit breaker short circuit protection detection means of the present invention；
Fig. 3 is the side, sectional structural representation of the device body of circuit breaker short circuit protection detection means of the present invention
Figure；
Accompanying drawing acceptance of the bid note is respectively：1st, device body；2nd, circuit breaker base；3rd, lug boss；4th, perforate；5th, thrust meter top
Pin；6th, draw bar；7th, thrust meter；8th, plate is detected；9th, threaded portion；10th, adjusting nut；11st, left groove；12nd, right groove；13rd, iron is moved
Core；14th, static iron core；15th, dynamic iron core support；16th, move in wink spring；17th, regulating arm.
Specific embodiment
Below against accompanying drawing, by the description to embodiment, to specific embodiment of the invention such as involved each structure
The shape of part, the mutual alignment between construction, each several part and annexation, the effect of each several part and operation principle etc. are made further
Detailed description：
As shown in 1-accompanying drawing of accompanying drawing 3, the present invention protects detection means, including device body 1 for a kind of circuit breaker short circuit,
Described device body 1 is configured to the structure fit together with circuit breaker base 2, and lug boss is set on device body 1
3, setting perforation 4 on lug boss 3, movable set thrust meter thimble 5 in described perforation 4, the inside of circuit breaker base 2 is set can
The draw bar 6 of circuit breaker tripping is driven after rotation, described one end of thrust meter thimble 5 is arranged to extend to circuit breaker base 2
The structure at the internal position of draw bar 6, the other end of thrust meter thimble 5 is fixedly connected with thrust meter 7, is set in circuit breaker base 2
Dynamic iron core 13 and static iron core 14, dynamic iron core 13 are connected by dynamic iron core support 15 with circuit breaker base 2, move in wink the one end of spring 16 with
Dynamic iron core support 15 is connected, and the other end of spring 16 of moving in wink is connected with the regulating arm 17 of dynamic iron core 13.By rotating regulating arm 17, adjust
Joint arm changes relative to the distance of dynamic iron core support, you can realize the regulation along the length of spring 16 of moving.Set by said structure,
The device body 1 of detection means and circuit breaker base 2 can be fit together；Exerted a force in thrust meter thimble 5 by thrust meter 7
On, thrust meter thimble 5 promotes draw bar 6 to rotate, and draw bar 6 drives circuit breaker tripping after rotating；Thrust meter 7 is in force thrust meter
During thimble 5, the maximum tripping force numerical value during drive circuit breaker tripping of draw bar 6 is measured；The maximum dropout that thrust meter 7 is measured
Power numerical value is contrasted with the design requirement numerical value of circuit breaker tripping, and maximum tripping force numerical value is in design requirement number range
, show that breaker maximum tripping force numerical value meets the requirements.At this moment, the maximum tripping force numerical value and breaker for thrust meter being measured
When the design requirement numerical value of dropout is contrasted, maximum tripping force numerical value shows open circuit not in design requirement number range
Device maximum tripping force numerical value is undesirable, is adjusted along dynamic its length, after regulation by the regulating arm for readjusting dynamic iron core
Again retested according to above-mentioned steps, until maximum tripping force numerical value is fallen in design requirement number range.The present invention
Circuit breaker short circuit protection detection means, simple structure can be by detection means, conveniently and efficiently to draw bar after rotation
Drive the maximum tripping force numerical value of circuit breaker tripping to measure, wink dynamic telescopic spring is accurately adjusted according to maximum tripping force numerical value
Length, it is ensured that normal operation of circuit breaker, reduces contact abrasion, and reduce power network is influenceed by short-circuit test, it is ensured that short-circuiting device reliability work
Make.
Described device body 1 is set to n character form structures, the detection plate 8 of multiple protrusions is set on device body 1, often
The structure that there is gap is set between individual detection plate 8, a lug boss 3 is respectively provided with each detection plate 8, each is convex
Rise portion 3 on perforation 4 in respectively one thrust meter thimble 5 of movable set, each thrust meter thimble 5 respectively with a thrust meter 7
Connection, described thrust meter 7 be configured to measure draw bar 6 drive circuit breaker tripping when maximum tripping force numerical value knot
Structure.When needing detection means to work, thrust meter thimble on the device body of detection means under thrust meter effect, to short circuit
Motion in device pedestal, thrust meter thimble exerts a force on draw bar 6, and draw bar 6 drives circuit breaker tripping after rotating；Thrust meter 7 exists
During force thrust meter thimble 5, the maximum tripping force numerical value during drive circuit breaker tripping of draw bar 6 is measured；Thrust meter 7 is measured
Maximum tripping force numerical value contrasted with the design requirement numerical value of circuit breaker tripping, maximum tripping force numerical value is in design requirement number
In the range of value, show that breaker maximum tripping force numerical value meets the requirements.
Described thrust meter 7 is configured to the structure for driving draw bar 6 to rotate, and draw bar is set in circuit breaker base 2
6, when the device body 1 of detection means fits together with circuit breaker base 2, one of thrust meter thimble 5 on each lug boss 3
End is respectively set to extend to the structure inside circuit breaker base 2, and each one end of thrust meter push rod 7 is near draw bar 6.Draw bar
6 correspond to the different phases (such as A, B, C phase) in breaker, and detect that the quantity of plate 8 is equal with the number of phases in breaker, often relatively
Answer a detection plate 8.Such structure setting, is easy to draw bar 6 after rotation, drives the maximum tripping force of circuit breaker tripping
Numerical value is measured, and improves the testing efficiency of detection means,
Threaded portion 9 is respectively provided with each described thrust meter push rod 7, adjusting nut 10 is screwed on each threaded portion 9, adjusted
Section nut 10 is arranged to adjust the structure that thrust meter thimble 5 inserts the internal depth of circuit breaker base 2, and device body 1 is by a left side
Groove 11 and right groove 12 are inserted on circuit breaker base 2.The setting of left groove 11 and right groove 12, to ensure multiple detection plates 8 and break
Position between the device pedestal of road is fixed, and detection plate 8 or so can not offset so that thrust meter thimble and dynamic iron in each perforation
The movement arm of the heart is corresponding；
Described dynamic iron core 13 is configured to the structure rotated relative to dynamic iron core support 15, and thrust meter thimble 5 is set
For that by driving dynamic iron core 13 to rotate draw bar 6 can be driven to rotate, the structure of circuit breaker tripping, described regulating arm 17 are realized
It is configured to the structure for pulling spring 16 of moving in wink to elongate or shorten.
The present invention also relates to a kind of detection method of the detection means described in application, the step of described detection method
For：1) device body 1 of detection means and circuit breaker base 2 are fit together；2) exerted a force on thrust meter top by thrust meter 7
On pin 5, thrust meter thimble 5 promotes draw bar 6 to rotate, and draw bar 6 drives circuit breaker tripping after rotating；3) thrust meter 7 is in force
During thrust meter thimble 5, the maximum tripping force numerical value during drive circuit breaker tripping of draw bar 6 is measured；4) thrust meter 7 is measured
Maximum tripping force numerical value is contrasted with the design requirement numerical value of circuit breaker tripping, and maximum tripping force numerical value is in design requirement numerical value
In the range of, show that breaker maximum tripping force numerical value meets the requirements.The purpose of measurement breaker maximum tripping force numerical value, be for
According to the numerical value of breaker maximum tripping force numerical value, adjustment is moved the tensile elongation of spring in wink.
When the maximum tripping force numerical value that thrust meter 7 is measured is contrasted with the design requirement numerical value of circuit breaker tripping, most
Big tripping force numerical value shows that breaker maximum tripping force numerical value is undesirable not in design requirement number range, passes through
The regulating arm 17 for readjusting dynamic iron core 13 is adjusted along the length of spring 16 of moving, and is surveyed again according to above-mentioned steps again after regulation
Examination, until maximum tripping force numerical value is fallen in design requirement number range.Such method, it is simple to operate, adjusted by limited number of time
It is whole, you can satisfactory collapsing length will to be adjusted to along spring of moving, it is ensured that normal operation of circuit breaker, contact abrasion is reduced, subtract
Few power network is influenceed by short-circuit test.
When the device body 1 of detection means fits together with circuit breaker base 2, device body 1 passes through left groove 11 and the right side
Groove 12 is inserted on circuit breaker base 2, realizes the connection of device body 1 and circuit breaker base 2, and thrust meter thimble 5 promotes dynamic iron
During core 13, thrust meter thimble 5 vertically exerts a force on the surface of dynamic iron core 13.
Circuit breaker short circuit of the present invention protects detection means, can be by the device body of detection means and breaker base
Seat fits together；Exerted a force on thrust meter thimble by thrust meter 7, thrust meter thimble promotes draw bar to rotate, and draw bar turns
Circuit breaker tripping is driven after dynamic；Thrust meter exert a force thrust meter thimble when, measure draw bar drive circuit breaker tripping when most
Big tripping force numerical value；The maximum tripping force numerical value that thrust meter is measured is contrasted with the design requirement numerical value of circuit breaker tripping,
Maximum tripping force numerical value shows that breaker maximum tripping force numerical value meets the requirements in design requirement number range.At this moment, will
When the maximum tripping force numerical value of thrust meter measurement is contrasted with the design requirement numerical value of circuit breaker tripping, maximum tripping force numerical value
Not in design requirement number range, show that breaker maximum tripping force numerical value is undesirable, by readjusting dynamic iron
The regulating arm regulation of core is retested, until maximum tripping force according to above-mentioned steps again along dynamic its length after regulation
Numerical value is fallen in design requirement number range.Circuit breaker short circuit of the present invention protects detection means, simple structure, Neng Goutong
Detection means is crossed, conveniently and efficiently drives the maximum tripping force numerical value of circuit breaker tripping to measure after rotation draw bar,
So as to accurately adjust spring collapsing length of moving in wink according to maximum tripping force numerical value, it is ensured that normal operation of circuit breaker, contact mill is reduced
Damage, reduce power network is influenceed by short-circuit test, it is ensured that short-circuiting device reliably working.
Detection method of the present invention, test is easy, and easy to adjust, described technical scheme is simple, convenient can
Lean on, detect parameter real-time capture, the test of product actuating range is reliable, circuit breaker short circuit protection can be met and required, while have subtracting
The advantages of few life cycle of the product, characterization processes are simple, detection product parameters are stable.
Exemplary description is carried out to the present invention above in conjunction with accompanying drawing, it is clear that concrete implementation of the present invention is not by above-mentioned
The limitation of mode, if the various improvement that method of the present invention design and technical scheme are carried out are employed, or it is not improved by this
The design of invention and technical scheme directly apply to other occasions, within the scope of the present invention.
Claims (6)
1. a kind of circuit breaker short circuit protection detection means, including device body (1), it is characterised in that：Described device body (1)
The structure fit together with circuit breaker base (2) is configured to, lug boss (3), lug boss are set on device body (1)
(3) set on and energy is set inside perforation (4), the interior movable set thrust meter thimble (5) of described perforation (4), circuit breaker base (2)
The draw bar (6) of enough drive circuit breaker trippings after rotation, described thrust meter thimble (5) one end is arranged to extend to breaker
The structure at internal draw bar (6) position of pedestal (2), thrust meter thimble (5) other end is fixedly connected with thrust meter (7), described
Circuit breaker base (2) in dynamic iron core (13) and static iron core (14) is set, dynamic iron core (13) by dynamic iron core support (15) with break
Road device pedestal (2) connects, and spring (16) one end of moving in wink is connected with dynamic iron core support (15), spring (16) other end of moving in described wink
It is connected with the regulating arm (17) of dynamic iron core (13)；
Described device body (1) is set to n character form structures, and the detection plate (8) of multiple protrusions is set on device body (1),
The structure that there is gap is set between each detection plate (8), a lug boss is respectively provided with each detection plate (8)
(3) difference one thrust meter thimble (5) of movable set, each thrust meter thimble (5) in perforation (4), on each lug boss (3)
It is connected with a thrust meter (7) respectively, described thrust meter (7) is configured to measurement draw bar (6) and drives circuit breaker tripping
When maximum tripping force numerical value structure.
2. circuit breaker short circuit according to claim 1 protects detection means, it is characterised in that：Described thrust meter (7) sets
It is set to and draw bar (6), the device sheet of detection means is set in the structure that draw bar (6) can be driven to rotate, circuit breaker base (2)
When body (1) fits together with circuit breaker base (2), one end of the thrust meter thimble (5) on each lug boss (3) is respectively provided with
The structure internal to extend to circuit breaker base (2), each thrust meter thimble (5) one end is respectively close to draw bar (6).
3. circuit breaker short circuit according to claim 1 protects detection means, it is characterised in that：Each thrust meter thimble (5)
On be respectively provided with threaded portion (9), be screwed adjusting nut (10) on each threaded portion (9), adjusting nut (10) is arranged to regulation
Thrust meter thimble (5) inserts the structure of circuit breaker base (2) internal depth, and device body (1) is by left groove (11) and right groove
(12) it is inserted on circuit breaker base (2).
4. circuit breaker short circuit according to claim 1 protects detection means, it is characterised in that：Described dynamic iron core (13) sets
The structure that can be rotated relative to dynamic iron core support (15) is set to, thrust meter thimble (5) is configured to by driving dynamic iron core
(13) rotate and drive draw bar (6) to rotate, realize the structure of circuit breaker tripping, described regulating arm (17) is configured to pull
The structure that spring (16) of moving in wink is elongated or shortened.
5. the circuit breaker short circuit described in a kind of application claim 4 protects the detection method of detection means, it is characterised in that：It is described
Detection method the step of be：1) device body (1) of detection means and circuit breaker base (2) are fit together；2) pass through
Thrust meter (7) exerts a force on thrust meter thimble (5), and thrust meter thimble (5) promotes draw bar (6) to rotate, after draw bar (6) is rotated
Drive circuit breaker tripping；3) thrust meter (7) measures draw bar (6) and drives circuit breaker tripping when thrust meter thimble (5) are exerted a force
When maximum tripping force numerical value；4) the maximum tripping force numerical value and the design requirement number of circuit breaker tripping for measuring thrust meter (7)
Value is contrasted, and maximum tripping force numerical value shows that breaker maximum tripping force numerical value meets in design requirement number range
It is required that；
It is maximum when the maximum tripping force numerical value that thrust meter (7) is measured is contrasted with the design requirement numerical value of circuit breaker tripping
Tripping force numerical value shows that breaker maximum tripping force numerical value is undesirable, by weight not in design requirement number range
Regulating arm (17) regulation of new regulation dynamic iron core (13) carries out weight according to above-mentioned steps again along spring (16) length of moving after regulation
New test, until maximum tripping force numerical value is fallen in design requirement number range.
6. the detection method of detection means according to claim 5, it is characterised in that：The device body (1) of detection means
When being fit together with circuit breaker base (2), device body (1) is inserted into circuit breaker base by left groove (11) and right groove (12)
(2) on, the connection of device body (1) and circuit breaker base (2) is realized, when thrust meter thimble (5) promotes dynamic iron core (13), thrust
Meter thimble (5) vertically exerts a force on dynamic iron core (13) surface.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510149522.2A CN104697694B (en) | 2015-03-31 | 2015-03-31 | A kind of detection method of circuit breaker short circuit protection detection means and application described device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510149522.2A CN104697694B (en) | 2015-03-31 | 2015-03-31 | A kind of detection method of circuit breaker short circuit protection detection means and application described device |
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| CN104697694A CN104697694A (en) | 2015-06-10 |
| CN104697694B true CN104697694B (en) | 2017-06-06 |
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Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09318468A (en) * | 1996-05-31 | 1997-12-12 | Toshiba Fa Syst Eng Kk | Contact-pressure measuring device and switch |
| CN101452795A (en) * | 2008-12-31 | 2009-06-10 | 杭州乾龙电器有限公司 | Integrated suction type instantaneous release for circuit breaker |
| CN201508171U (en) * | 2009-09-28 | 2010-06-16 | 上海施耐德低压终端电器有限公司 | Automatic test equipment of machine element in electric leakage protective device |
| CN101886959B (en) * | 2010-06-07 | 2012-01-18 | 江苏新洛凯机电有限公司 | Breaker brake-separating and tripping force test device |
| CN202814611U (en) * | 2012-08-20 | 2013-03-20 | 江苏大全凯帆电器股份有限公司 | Apparatus for detecting tripping force of moulded case circuit breaker |
| CN203259286U (en) * | 2013-03-15 | 2013-10-30 | 温州大学 | Detection device for detecting contactor iron core pull-in impact force |
| CN203551714U (en) * | 2013-10-29 | 2014-04-16 | 国家电网公司 | On-line monitoring system capable of monitoring short-circuit force applied to running transformer |
| CN204666289U (en) * | 2015-03-31 | 2015-09-23 | 安徽鑫龙电器股份有限公司 | Circuit breaker short circuit protection pick-up unit |
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2015
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