CN110426540A - The mechanical lock of split-phase step switch - Google Patents
The mechanical lock of split-phase step switch Download PDFInfo
- Publication number
- CN110426540A CN110426540A CN201910736490.4A CN201910736490A CN110426540A CN 110426540 A CN110426540 A CN 110426540A CN 201910736490 A CN201910736490 A CN 201910736490A CN 110426540 A CN110426540 A CN 110426540A
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- Prior art keywords
- plane
- slide damper
- jacking block
- guide rail
- switch
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- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 15
- 230000033001 locomotion Effects 0.000 claims abstract description 13
- 230000013011 mating Effects 0.000 claims abstract description 5
- 230000008094 contradictory effect Effects 0.000 claims abstract description 4
- 239000002775 capsule Substances 0.000 claims description 3
- 230000007935 neutral effect Effects 0.000 abstract description 4
- 230000006378 damage Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000007257 malfunction Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/20—Modifications of basic electric elements for use in electric measuring instruments; Structural combinations of such elements with such instruments
- G01R1/206—Switches for connection of measuring instruments or electric motors to measuring loads
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Breakers (AREA)
Abstract
The invention discloses a kind of mechanical locks of split-phase step switch.Three switches division movement parts (2) of its threephase switch (ABC) are respectively fixedly connected with the jacking block (3) that top is inclined-plane；The top of jacking block (3) is equipped with the slide damper (4) that its both ends that two pieces contradict connection are inclined-plane, the inclined-plane of slide damper (4) and the inclined-plane of jacking block (3) are oppositely arranged, wherein, the top of the jacking block (3) under the slide damper (4) for contradicting connection positioned at two pieces is double inclined plane；Slide damper (4) and guide rail (5) dynamic mating connection, guide rail (5) is fixedly connected with pedestal (1), is equipped with elastic component (6) between the both ends of guide rail (5) and the both ends of slide damper (4).It can be extremely easy to widely commercial applications and be handled in the individual-phase control switch of singlephase earth fault in 3-66kV neutral point not solidly grounded system.
Description
Technical field
The present invention relates to a kind of mechanical lock, especially a kind of mechanical lock of split-phase step switch.
Background technique
In the system that 3-66kV neutral point is not directly grounded, singlephase earth fault is one of the most common type failure.Work as hair
When raw singlephase earth fault, since the three-phase line voltage of system still keeps balancing, so power supply-distribution system can still work normally.Root
According to the relevant regulations of State Grid's system safety operation, neutral point is not when singlephase earth fault occurs for solidly grounded system, system
Longest can power 2 hours, so to find fault branch in time during this period and carry out appropriate processing to it.
Currently, the device in the power supply-distribution system in China for ground fault processing, is mostly the mesh based on rapid arc extinction
, such as a kind of Sofe Switch of 106877307 A of Chinese invention patent application CN the applicant announced on June 20th, 2017
Arc-extinction device.The formula individual-phase control that is combined through series connection between the bus terminal and ground terminal of device switch, phase-selecting switch and electric current pass
Sensor and the second voltage sensor and impedor and first voltage sensor for being parallel to phase-selecting switch both ends；When connecing
After earth fault, observing and controlling component is switched by combined type individual-phase control to be grounded failure phase direct metal to shift current in the fault point.
Though this device can dispose ground fault in time, but also there is shortcomings, firstly, if observing and controlling component malfunction or
On-site electromagnetic interference is serious, and easily there is a situation where two-phase or threephase switches to close a floodgate simultaneously, i.e. generation power distribution cabinet internal short-circuit, makes cabinet
Body explosion, causes great adverse consequences, so that property and personal safety be made to sustain damage and endanger；Secondly, even if combined type
Individual-phase control switch all installs the circuit interlocking of travel switch additional, remains on the continuous generation of unavoidable such accident, cause
For the circuit interlocking of travel switch, there is blank dead zones, can not accomplish safe locking.
Summary of the invention
The technical problem to be solved in the present invention place in order to overcome the shortcomings in the prior art, providing a kind of only allows three-phase to open
The mechanical lock of the split-phase step switch of the one phase closure in the Central Shanxi Plain.
To solve technical problem of the invention, used technical solution is the mechanical lock of split-phase step switch
Three switch division movement parts including threephase switch, especially:
Three switches division movement parts are respectively fixedly connected with the jacking block that top is inclined-plane；
The top of the jacking block is equipped with the slide damper that its both ends that two pieces contradict connection are inclined-plane, the slide damper
Inclined-plane and the inclined-plane of jacking block be oppositely arranged, wherein the top of the jacking block under the slide damper for contradicting connection positioned at two pieces is double
Inclined-plane；
The slide damper and the dynamic mating connection of guide rail；
The guide rail is fixedly connected with pedestal；
Elastic component is equipped between the both ends of the guide rail and the both ends of slide damper.
The further improvement of mechanical lock as split-phase step switch:
Preferably, guide rail is located in the through slot of slide damper.
Preferably, pedestal is threephase switch pedestal or power distribution cabinet pedestal.
Preferably, elastic component is helical spring or spring leaf or elastic rubber or elastic capsule.
Beneficial effect compared with the existing technology is:
With such a structure, either observing and controlling component malfunction or combined type individual-phase control threephase switch institute
The intensity of electromagnetic interference in the environment at place have it is much, when the three-phase in threephase switch is all in gate-dividing state, therein
A phase of anticipating can close a floodgate, and when any one phase in three-phase is closed a floodgate, in addition two-phase can not close a floodgate；And close a floodgate when mutually resetting,
Blocking mechanism also resets.I.e. can not there is a situation where two-phases or threephase switch to close a floodgate simultaneously, avoid power distribution cabinet internal short-circuit thing
Therefore generation, prevented damage and the harm to property and personal safety.Make its can be extremely easy to widely commercial applications in 3-
66kV neutral point is not handled in solidly grounded system in the individual-phase control switch of singlephase earth fault.
Detailed description of the invention
Fig. 1 is a kind of basic structure partial cutaway schematic of the invention.
Fig. 2 is right side view of the invention shown in Fig. 1.
Specific embodiment
Preferred embodiment of the invention is described in further detail with reference to the accompanying drawing.
Referring to Fig. 1 and Fig. 2, the composition of the mechanical lock of split-phase step switch is as follows:
Three switch division movement parts 2 of threephase switch ABC are respectively fixedly connected with the jacking block 3 that top is inclined-plane.
The top of jacking block 3 be equipped with two pieces contradict connection its both ends be inclined-plane slide damper 4, slide damper 4 it is oblique
Face and the inclined-plane of jacking block 3 are oppositely arranged, wherein the top of the jacking block 3 under the slide damper 4 for contradicting connection positioned at two pieces is diclinic
Face.
Slide damper 4 and the dynamic mating connection of guide rail 5；It is specifically configured to guide rail 5 to be located in the through slot of slide damper 4, lead
The dynamic mating connection of the supporting plate of 5 bottom of rail and the bottom end of slide damper 4.
Guide rail 5 is fixedly connected with pedestal 1；Wherein, pedestal 1 is threephase switch pedestal (can also be power distribution cabinet pedestal).
Elastic component 6 is equipped between the both ends of guide rail 5 and the both ends of slide damper 4；Wherein, elastic component 6 is helical spring
(can also be spring leaf or elastic rubber or elastic capsule).
In use, needing the voltage class being first applied to according to the present invention in electric system and required capacity only to select three-phase
The electric parameter of switch ABC, then threephase switch ABC is electrically connected with electric system.
A phase when electric system generation ground fault, after threephase switch ABC is connected to switching signal, in threephase switch ABC
When switch combined floodgate movement, this mutually switchs division movement parts 2 and the jacking block 3 being firmly connected with it is driven to move upwards, and passes through its top
Slope driving slide damper 4 inclined-plane, make 4 transverse movement of slide damper, and 6 deformation and energy storage of compression elastic piece.Slide damper 4
Transverse movement change the inclined-plane at its both ends and be formed by gap position, make and other two-phase switch division movement parts 2 be fixed
Another two jacking blocks 3 of connection can not move --- prevent the combined floodgate of other two-phase.
It is fixed with the switch division movement parts 2 of the combined floodgate phase when the phase closed a floodgate in threephase switch ABC switchs separating brake
The jacking block 3 of connection moves down, is resetted under the action of elastic component 6 by its slide damper 4 being displaced.
If generation threephase switch ABC is connected to two-phase or three-phase while the signal of combined floodgate, because of the switch of two-phase or three-phase point
The mutual location conflicts for two or three jacking blocks 3 that resultant motion part 2 is driven, prevent slide damper 4 from lateral fortune occurs
The case where moving, namely two-phase or three-phase cannot be made all to close a floodgate, it is ensured that be not in the generation of cabinet internal short-circuit accident.
Obviously, those skilled in the art can carry out the mechanical lock of split-phase step switch of the invention various
Modification and variation is without departing from the spirit and scope of the present invention.If in this way, belonging to this to these modifications and changes of the present invention
Within the scope of invention claim and its equivalent technologies, then the present invention is also intended to include these modifications and variations.
Claims (4)
1. a kind of mechanical lock of split-phase step switch, three switch division movement parts including threephase switch (ABC)
(2), it is characterised in that:
Three switches division movement parts (2) are respectively fixedly connected with the jacking block (3) that top is inclined-plane；
The top of the jacking block (3) is equipped with the slide damper (4) that its both ends that two pieces contradict connection are inclined-plane, the sliding gear
The inclined-plane of plate (4) and the inclined-plane of jacking block (3) are oppositely arranged, wherein the jacking block under the slide damper (4) for contradicting connection positioned at two pieces
(3) top is double inclined plane；
The slide damper (4) and guide rail (5) dynamic mating connection；
The guide rail (5) is fixedly connected with pedestal (1)；
Elastic component (6) are equipped between the both ends of the guide rail (5) and the both ends of slide damper (4).
2. the mechanical lock of split-phase step switch according to claim 1, it is characterized in that guide rail (5) is located at sliding gear
In the through slot of plate (4).
3. the mechanical lock of split-phase step switch according to claim 1, it is characterized in that pedestal (1) is threephase switch
Pedestal or power distribution cabinet pedestal.
4. the mechanical lock of split-phase step switch according to claim 1, it is characterized in that elastic component (6) is spiral bullet
Spring or spring leaf or elastic rubber or elastic capsule.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910736490.4A CN110426540A (en) | 2019-08-09 | 2019-08-09 | The mechanical lock of split-phase step switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910736490.4A CN110426540A (en) | 2019-08-09 | 2019-08-09 | The mechanical lock of split-phase step switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110426540A true CN110426540A (en) | 2019-11-08 |
Family
ID=68413784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910736490.4A Pending CN110426540A (en) | 2019-08-09 | 2019-08-09 | The mechanical lock of split-phase step switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110426540A (en) |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201149834Y (en) * | 2008-01-10 | 2008-11-12 | 北京科力恒久电力技术有限责任公司 | Intelligent mechanical lock apparatus for novel 10 kV gas-filling cabinet |
| CN201667299U (en) * | 2009-12-12 | 2010-12-08 | 天水长城开关厂有限公司 | Mechanical interlocking mechanism of breaker and three-position disconnecting switch |
| CN201741604U (en) * | 2009-10-14 | 2011-02-09 | 北京东方昱立电气技术有限公司 | Interlock operating mechanism for novel high-voltage switch equipment |
| CN203134618U (en) * | 2013-03-19 | 2013-08-14 | 杭州乾龙伟业电器成套有限公司 | Mechanical interlocking mechanism of power change-over switches |
| CN203760366U (en) * | 2014-01-23 | 2014-08-06 | 沈阳天维电气设备制造有限公司 | High-voltage switch cabinet operation interlocking mechanism |
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| CN205248172U (en) * | 2015-12-09 | 2016-05-18 | 中国西电电气股份有限公司 | Integrated form is three -phase mechanical linkage earthing switch drive mechanism for isolation breaker |
| CN205645609U (en) * | 2016-05-23 | 2016-10-12 | 云南人民电力电气有限公司 | Cubical switchboard state intelligence operation controlling means |
| CN107039207A (en) * | 2017-05-24 | 2017-08-11 | 句容市福润电气有限公司 | Self-locking formula indoor hv earthing switch |
| CN108022791A (en) * | 2017-12-18 | 2018-05-11 | 云南电网有限责任公司电力科学研究院 | A kind of high-voltage switch gear three-phase mechanical blocking device and normal signal source |
| CN108538673A (en) * | 2018-05-31 | 2018-09-14 | 益和电气集团股份有限公司 | A kind of earthing switch closes point instruction and a blocking device |
| CN109301718A (en) * | 2018-11-29 | 2019-02-01 | 国网安徽省电力有限公司滁州供电公司 | A kind of three-phase mechanical interlocking phase modulation electricity box |
| CN109378233A (en) * | 2018-12-03 | 2019-02-22 | 国网安徽省电力有限公司滁州供电公司 | A kind of three-phase mechanical interlocking phasing switch |
| CN210604730U (en) * | 2019-08-09 | 2020-05-22 | 安徽一天电气技术股份有限公司 | Mechanical locking mechanism of split-phase action switch |
-
2019
- 2019-08-09 CN CN201910736490.4A patent/CN110426540A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201149834Y (en) * | 2008-01-10 | 2008-11-12 | 北京科力恒久电力技术有限责任公司 | Intelligent mechanical lock apparatus for novel 10 kV gas-filling cabinet |
| CN201741604U (en) * | 2009-10-14 | 2011-02-09 | 北京东方昱立电气技术有限公司 | Interlock operating mechanism for novel high-voltage switch equipment |
| CN201667299U (en) * | 2009-12-12 | 2010-12-08 | 天水长城开关厂有限公司 | Mechanical interlocking mechanism of breaker and three-position disconnecting switch |
| CN203134618U (en) * | 2013-03-19 | 2013-08-14 | 杭州乾龙伟业电器成套有限公司 | Mechanical interlocking mechanism of power change-over switches |
| CN203760366U (en) * | 2014-01-23 | 2014-08-06 | 沈阳天维电气设备制造有限公司 | High-voltage switch cabinet operation interlocking mechanism |
| CN204067109U (en) * | 2014-08-25 | 2014-12-31 | 广东阿尔派电力科技股份有限公司 | Misoperation-proof locking device |
| CN205248172U (en) * | 2015-12-09 | 2016-05-18 | 中国西电电气股份有限公司 | Integrated form is three -phase mechanical linkage earthing switch drive mechanism for isolation breaker |
| CN205645609U (en) * | 2016-05-23 | 2016-10-12 | 云南人民电力电气有限公司 | Cubical switchboard state intelligence operation controlling means |
| CN107039207A (en) * | 2017-05-24 | 2017-08-11 | 句容市福润电气有限公司 | Self-locking formula indoor hv earthing switch |
| CN108022791A (en) * | 2017-12-18 | 2018-05-11 | 云南电网有限责任公司电力科学研究院 | A kind of high-voltage switch gear three-phase mechanical blocking device and normal signal source |
| CN108538673A (en) * | 2018-05-31 | 2018-09-14 | 益和电气集团股份有限公司 | A kind of earthing switch closes point instruction and a blocking device |
| CN109301718A (en) * | 2018-11-29 | 2019-02-01 | 国网安徽省电力有限公司滁州供电公司 | A kind of three-phase mechanical interlocking phase modulation electricity box |
| CN109378233A (en) * | 2018-12-03 | 2019-02-22 | 国网安徽省电力有限公司滁州供电公司 | A kind of three-phase mechanical interlocking phasing switch |
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