CN108183043B - A kind of new structural interlock and the verifying attachment for examining the interlock - Google Patents
A kind of new structural interlock and the verifying attachment for examining the interlock Download PDFInfo
- Publication number
- CN108183043B CN108183043B CN201711375338.5A CN201711375338A CN108183043B CN 108183043 B CN108183043 B CN 108183043B CN 201711375338 A CN201711375338 A CN 201711375338A CN 108183043 B CN108183043 B CN 108183043B
- Authority
- CN
- China
- Prior art keywords
- mandril
- bracket
- pressure spring
- cylinder
- interlock
- 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.)
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Links
- 210000000078 claw Anatomy 0.000 claims abstract description 9
- 230000007704 transition Effects 0.000 claims description 11
- 238000004088 simulation Methods 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims 1
- 230000001960 triggered effect Effects 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000001568 sexual effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/26—Interlocking, locking, or latching mechanisms for interlocking two or more switches
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
- H01H31/12—Adaptation for built-in fuse
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Breakers (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention discloses a kind of new structural interlocks, including bracket, cylinder is equipped in the upper end of the bracket, being equipped in the inner barrel can be along the mandril that its axial direction is slided, the upper and lower ends of the mandril extend respectively to the outside of cylinder, clamping joint is equipped in the lower end of the mandril, baffle is equipped at the middle part of the mandril, pressure spring is arranged in the lower part of the mandril, the upper end of the pressure spring is arranged on baffle, the lower end of the pressure spring is arranged on the lower end of cylinder, limiting device corresponding with the clamping joint of mandril is equipped in the lower end of the bracket；The limiting device includes an at least locating part, is equipped with claw in the upper end of the locating part, the lower end of the locating part is hinged on bracket by torsional spring.Present device is during normal operation, and when over current fault occurs for inside transformer, energy triggered as normal realizes on-load switch separating brake, disengagement failure, by removing the hidden trouble.
Description
Technical field
The present invention relates to interlocking verifying attachment technical fields, are related specifically to a kind of new structural interlock and inspection
Test the verifying attachment of the interlock.
Background technique
Fuse and breaker are two kinds of protection original parts of power transformer interior fault protection, and the fuse of same capacity and
Breaker is compared, and the price of fuse is only the half of breaker price, some even one thirds；Disengagement failure
Time is compared, and breaker cut-offs its relay protection time and adds opening time that the blow-out time is added to generally require 30ms, and current limliting fuses
Device can guarantee within 10ms excision failed shorted electric current, and when inside transformer failure time of short circuit remains longer can cause production
Product short circuit is even exploded, and in order to improve the protective value after power transformer interior fault, therefore the disengagement failure time generally exists
Within 20ms, on-load switch is used cooperatively with fuse in summary, is current domestic more universal and higher one kind of sexual valence
With net mode, it may be implemented the device for switching for replacing breaker to do control protection, protects the switchgear of transformer.
On-load switch and fuse constitute combined electrical apparatus, trigger on-load switch separating brake by interlocking after fuse movement, finally
Cut off power transformer interior fault short circuit current, that is to say, that the reliability of the length interlocking of time required for excision failure is determined
The security performance for being reliably directly related to equipment operation that is fixed, therefore interlocking.
And the interlock overall structure of the prior art is complex, and after over current fault occurs for inside transformer, excision event
Time required for hindering is longer, has seriously affected the security performance of equipment operation, has brought to the safe operation of equipment biggish
It is inconvenient.
However in view of the deficiencies of the prior art, a kind of design is reasonable, structure is simple, equipment is just it is necessary to develop by developer
Often during operation, when over current fault occurs for inside transformer, energy triggered as normal realizes on-load switch separating brake, and disengagement failure will
The new structural interlock of removing the hidden trouble and the verifying attachment for examining the interlock.
Summary of the invention
In order to solve the problems existing in the prior art, the object of the invention provide a kind of design rationally, structure is simple, equipment exists
During normal operation, when over current fault occurs for inside transformer, energy triggered as normal realization on-load switch separating brake, disengagement failure,
By the new structural interlock of removing the hidden trouble and examine the verifying attachment of the interlock.
In order to solve the above technical problems, the present invention is realized using following technical scheme:
A kind of new structural interlock, which is characterized in that including bracket, it is equipped with cylinder in the upper end of the bracket,
Being equipped in the inner barrel can extend respectively to along the mandril that its axial direction is slided, the upper and lower ends of the mandril
The outside of cylinder, is equipped with clamping joint in the lower end of the mandril, baffle is equipped at the middle part of the mandril, under the mandril
Portion is arranged with pressure spring, and the upper end of the pressure spring is arranged on baffle, and the lower end of the pressure spring is arranged on the lower end of cylinder, in institute
The lower end for stating bracket is equipped with limiting device corresponding with the clamping joint of mandril；
The limiting device includes an at least locating part, is equipped with claw in the upper end of the locating part, the locating part
Lower end is hinged on bracket by torsional spring, top pawl is equipped at the middle part of the locating part, when over current fault occurs for inside transformer
When, the upper end triggering on-load switch of mandril makes its separating brake；For equipment during normal operation, the clamping joint of mandril is connected to claw
On.
In a preferred embodiment of the invention, gasket is equipped between the lower end of the pressure spring and the lower end of cylinder.
In a preferred embodiment of the invention, the baffle is arranged on mandril by split pin.
The invention also discloses a kind of verifying attachments, which is characterized in that including shell, is equipped in the upper end of the shell
Above-mentioned interlock is equipped in the lower end of the shell for simulating the simulator acted after fuse blows, the simulation
Device includes coil and transition piece, and the transition piece is arranged on coil, and the coil passes through storage battery power supply.
In a preferred embodiment of the invention, the transition piece is arranged on coil by resilient key.
Compared with prior art, the present invention can make equipment during normal operation using the above structure, when in transformer
When over current fault occurs for portion, energy triggered as normal realizes that on-load switch separating brake, disengagement failure effectively raise removing the hidden trouble
The security performance of the new structural interlock brings biggish convenience to the safe operation of equipment.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the structural schematic diagram that the present invention is mounted on locked position of coupler on verifying attachment.
Fig. 3 is the structural schematic diagram that the present invention is mounted on unlocked position on verifying attachment.
Fig. 4 is that the present invention is mounted on the structural schematic diagram that principle is unlocked on verifying attachment.
Specific embodiment
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, tie below
Conjunction is specifically illustrating, and the present invention is further explained.
Shown in referring to Fig.1, a kind of new structural interlock provided in figure, including bracket 100.
It is equipped with cylinder 200 in the upper end of bracket 100, being equipped with inside cylinder 200 can be slided along its axial direction
Mandril 300, the upper and lower ends of mandril 300 extend respectively to the outside of cylinder 200, are equipped with clamping joint in the lower end of mandril 300
310, baffle 320 is equipped at the middle part of mandril 300.
It is arranged with pressure spring 330 in the lower part of mandril 300, the upper end of pressure spring 330 is arranged on baffle 320, under pressure spring 330
End is arranged on the lower end of cylinder 200, gasket 340 is equipped between the lower end of pressure spring 330 and the lower end of cylinder 200, in bracket
100 lower end is equipped with limiting device corresponding with the clamping joint 310 of mandril 300.
Limiting device includes an at least locating part 400, is equipped with claw 410 in the upper end of locating part 400, locating part 400
Lower end is hinged on bracket 100 by torsional spring 420, top pawl 430 is equipped at the middle part of locating part 400, when inside transformer occurs
When over current fault, the upper end triggering on-load switch of mandril 300 makes its separating brake；Equipment is during normal operation, the clamping of mandril 300
First 310 are connected on claw 410, and locating part 400 is 2 in the present embodiment, and baffle 320 is being pushed up by the setting of split pin 321
On bar 300.
Referring to shown in Fig. 2-Fig. 4, a kind of verifying attachment provided in figure, including shell 500, pacify in the upper end of shell 500
Equipped with above-mentioned interlock, it is equipped in the lower end of shell 500 for simulating the simulator 600 acted after fuse blows, mould
Quasi- device includes coil 610 and transition piece 620, and transition piece 620 is arranged on coil 610, and coil 610 passes through storage battery power supply,
Transition piece 620 is arranged on coil 610 by resilient key 621, and DC12V-36V human body can be selected in coil 610 in the present embodiment
Safe voltage.
Coil 610 it is electric after act, transition piece 620 is pushed at locating part 400, the upper end of transition piece 620 is pushed up upwards
Top lifting pawl 430, locating part 400 are rotated by torsional spring 420, and the clamping joint 310 on mandril 300 is made to be detached from claw 410, thus
It moves up mandril 300 under the action of pressure spring 330, the output (A=20mm-25mm) of stroke A is finally realized, to touch
Send out on-load switch separating brake.
Device lock operation: being moved downward by hand force pushing mandril 300, overcomes pressure spring 330 until mandril 300 is pressed into
It at locating part 400, is connected to clamping joint 310 on claw 410, is resetted mandril 300 by 420 power of torsional spring while realizing pressure
Locking is realized in 330 accumulation of energy of spring.
The present invention can make equipment during normal operation using the above structure in summary, when inside transformer occurred
When flowing failure, energy triggered as normal realizes that removing the hidden trouble is effectively raised the novel knot by on-load switch separating brake, disengagement failure
The security performance of the interlock of structure brings biggish convenience to the safe operation of equipment.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, various changes and improvements may be made to the invention without departing from the spirit and scope of the present invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent defines.
Claims (5)
1. a kind of new structural interlock, which is characterized in that including bracket, it is equipped with cylinder in the upper end of the bracket,
The inner barrel, which is equipped with, to extend respectively to cylinder along the mandril that its axial direction is slided, the upper and lower ends of the mandril
The outside of body, is equipped with clamping joint in the lower end of the mandril, baffle is equipped at the middle part of the mandril, in the lower part of the mandril
It is arranged with pressure spring, the upper end of the pressure spring is arranged on baffle, and the lower end of the pressure spring is arranged on the lower end of cylinder, described
The lower end of bracket is equipped with limiting device corresponding with the clamping joint of mandril；
The limiting device includes an at least locating part, is equipped with claw, the lower end of the locating part in the upper end of the locating part
It is hinged on bracket by torsional spring, is equipped with top pawl at the middle part of the locating part, when over current fault occurs for inside transformer, top
The upper end triggering on-load switch of bar makes its separating brake；During normal operation, the clamping joint of mandril is connected on claw equipment.
2. a kind of new structural interlock according to claim 1, it is characterised in that: the pressure spring lower end with
Gasket is equipped between the lower end of cylinder.
3. a kind of new structural interlock according to claim 1, it is characterised in that: the baffle passes through split pin
It is arranged on mandril.
4. a kind of verifying attachment, which is characterized in that including shell, install in the upper end of the shell just like in claim 1-3
Interlock described in any one is equipped in the lower end of the shell for simulating the simulation acted after fuse blows dress
It sets, the simulator includes coil and transition piece, and the transition piece is arranged on coil, and the coil is supplied by battery
Electricity.
5. a kind of verifying attachment according to claim 4, it is characterised in that: the transition piece is arranged online by resilient key
On circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711375338.5A CN108183043B (en) | 2017-12-19 | 2017-12-19 | A kind of new structural interlock and the verifying attachment for examining the interlock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711375338.5A CN108183043B (en) | 2017-12-19 | 2017-12-19 | A kind of new structural interlock and the verifying attachment for examining the interlock |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108183043A CN108183043A (en) | 2018-06-19 |
| CN108183043B true CN108183043B (en) | 2019-05-14 |
Family
ID=62546437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711375338.5A Active CN108183043B (en) | 2017-12-19 | 2017-12-19 | A kind of new structural interlock and the verifying attachment for examining the interlock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108183043B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110356288B (en) * | 2018-03-26 | 2020-12-08 | 北汽福田汽车股份有限公司 | Trigger switch, position adjustment device and drivable device |
| CN111525396B (en) * | 2020-05-26 | 2021-10-15 | 广东电网有限责任公司 | Power grid grounding system |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201904245U (en) * | 2010-12-29 | 2011-07-20 | 泰豪科技(深圳)电力技术有限公司 | Interlocking device for load switch cabinet |
| KR101033271B1 (en) * | 2011-03-15 | 2011-05-09 | (주)서전기전 | A safety system between appliances by machanical and electrical interlock |
| CN102157282B (en) * | 2011-03-30 | 2013-04-17 | 广东阿尔派智能电网有限公司 | Interlock system of solid insulation vacuum ring main unit |
| CN203706947U (en) * | 2014-01-16 | 2014-07-09 | 浙江开关厂有限公司 | Opening interlocking device for switch cabinet |
| CN203911265U (en) * | 2014-05-14 | 2014-10-29 | 甘肃电力明珠益和电气有限责任公司 | Simple emergency brake-separating triggering device for high-voltage switch cabinet |
| CN104882313B (en) * | 2015-06-23 | 2016-11-23 | 吉林省金冠电气股份有限公司 | The rigid separating brake interlocking mechanism of on-load switch fuse combined electric apparatus |
| CN205881737U (en) * | 2016-08-01 | 2017-01-11 | 湖北长江电气有限公司 | Produce gas formula load switch cabinet interlock |
-
2017
- 2017-12-19 CN CN201711375338.5A patent/CN108183043B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN108183043A (en) | 2018-06-19 |
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