CN105161348B - Hand-in-hand line centrally-positioned wire-outgoing switchgear grounding switch blocking device, system and method - Google Patents
Hand-in-hand line centrally-positioned wire-outgoing switchgear grounding switch blocking device, system and method Download PDFInfo
- Publication number
- CN105161348B CN105161348B CN201510685243.8A CN201510685243A CN105161348B CN 105161348 B CN105161348 B CN 105161348B CN 201510685243 A CN201510685243 A CN 201510685243A CN 105161348 B CN105161348 B CN 105161348B
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- China
- Prior art keywords
- dead bolt
- grounding switch
- enclosing cover
- switch
- mounting base
- Prior art date
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- 230000000903 blocking effect Effects 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000005611 electricity Effects 0.000 claims description 18
- 238000003780 insertion Methods 0.000 claims description 5
- 230000037431 insertion Effects 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 1
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 10
- 238000012360 testing method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- 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
- H01H31/04—Interlocking mechanisms
Landscapes
- Switch Cases, Indication, And Locking (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention discloses a hand-in-hand line centrally-positioned wire-outgoing switchgear grounding switch blocking device, system and method. The grounding switch blocking device comprises an outer cover. A side of the outer cover is provided with a protruded baffle plate. The other side of the outer cover is hinged to an installing base plate. An electromagnet is disposed on the installing base plate, is equipped with a switch button, is connected with a dead bolt, and is capable of driving the dead bolt to move. The outer cover is provided with a clamping groove. The dead bolt can be clamped to the clamping groove in order to enable the outer cover to be on the installing base plate. When a high-voltage line is powered on, the dead bolt is clamped in the clamping groove, the baffle plate blocks a centrally-positioned switchgear grounding knife switch operation port such that the grounding knife switch cannot be switched on. When the high-voltage line is powered down, the switch button is pressed in order to power on an electromagnet, the dead bolt is withdrawn and the outer cover is opened, thus, the grounding knife switch can be operated. The electrification display blocking device is reliable in contact, correct in indication, reliable in blocking, and easy to install, greatly reduces safety threat of running and overhaul workers, and achieves a target requirement.
Description
Technical field
The present invention relates to safety device against false manoeuvres, more particularly to a kind of circuit middle outgoing line cabinet hand in hand of 10kV connects
Ground latching device for switch, system and method.
Background technology
When middle-placed switch cabinet power circuit is located at testing position using power supply mode " hand in hand ", and middle-placed switch cabinet inner breaker, go out
Line side from other transformer stations it is possible to power.Before earthed switch is closed outgoing line side must be guaranteed without electricity, it is high in the market
The cabinet type that compresses switch is a lot, and mostly using comprehensive anti-misoperation locking, closedown mode is more perfect.But still have minority high-voltage switch gear
The locking measure of cabinet is not perfect enough, can not still be fully achieved the requirement of " five prevent ", there is serious potential safety hazard.This hidden danger is for many years
It is always individual long-standing.Machinery " five prevent " lock, microcomputer locking not can solve this problem, pacify in existing blocking device
Need to have a power failure when filling the blocking device and install, have impact on the reliability of power supply, increased the time of power failure, easily cause visitor
Family it is discontented.The accident of charged co-grounding switch happens occasionally in power generation, and this problem is always treated as electric power safety life
One of hidden danger of product, the maloperation for causing therefrom makes grid power blackout, casualties, and to country immeasurable loss is brought.
The content of the invention
The purpose of the present invention is exactly to solve the above problems, there is provided one kind hand in hand open by circuit middle outgoing line cabinet ground connection
Locking device, system and method are closed, to power transmission and transformation line automatic electricity-testing, the forced blocking line side ground connection in the case of circuit is powered
The conjunction of disconnecting link point operation, the accident of earthed switch is closed to eliminate middle outgoing line cabinet by mistake, prevents five-proof program lock from walking empty leakage
Hole.
To achieve these goals, the present invention is adopted the following technical scheme that：
Grounding switch locking device, including enclosing cover, the side of the enclosing cover is provided with the baffle plate of protrusion, opposite side and installation bottom
Plate is hinged, and the mounting base is provided with electric magnet, and the electric magnet is provided with the shift knob for controlling its energization power-off, the electricity
Magnet is connected with dead bolt, and the electric magnet can drive dead bolt to move, and outer the covering is provided with draw-in groove, and the dead bolt can be stuck in card
The enclosing cover is caused to cover on the mounting base in groove.
The side of the enclosing cover is connected with lock, and the mounting base is provided with lock nose.
The side of the enclosing cover is connected with lock nose, and the mounting base is provided with lock.Using common lockset through lock
Nose is pinned, and can also prevent enclosing cover from opening.
The end face of the dead bolt is inclined-plane.
The angle of inclination of the dead bolt end face [10 °, 90 °) in interval range.
Preferably, the angle of inclination of the dead bolt end face be 45 °, enclosing cover around pin joint overturn when, cover in mounting base
On, dead bolt is snapped in draw-in groove so that enclosing cover can not be opened.
The mounting base is provided with multiple installing holes.Mounting base is arranged on middle-placed switch cabinet.
The baffle plate is provided with handle.It is convenient to open enclosing cover.
Using the block sytem of the grounding switch locking device, including electrification in high voltage sensor, the high pressure belt fax
Sensor is connected on high-tension line, and electrification in high voltage sensor is connected with charged display device, the charged display device with it is described
The electric magnet connection of grounding switch locking device.High tension loop bus is powered at charged display device display switch equipment place
Situation.
The blocking method of block sytem, when high-tension line is powered, electrification in high voltage sensor will be given powered aobvious with electrical information
Showing device, the contact of charged display device disconnects, and the electric magnet dead electricity, dead bolt is stuck in the draw-in groove, and enclosing cover is covered to be installed
On base plate, baffle plate is kept off at central-positioned switch cabinet grounding switch operation mouth, it is impossible to open baffle plate, it is impossible to which insertion operation handle is carried out
Operation, it is impossible to close grounding switch；
When high-tension line is not charged, the junction closure of charged display device, connect electromagnet power supply, pin it is described switch by
Button, electric magnet is powered, electromagnetic actuation, and dead bolt withdraws, and opens enclosing cover, and such baffle plate cannot keep off grounding switch gathering hole
Firmly, being inserted into switch operation handle carries out the operation of grounding switch.
Hand in hand circuit is dual power supply to a line powering, and one end maintenance, other end powered operation mode is extremely complex
Danger, when the present invention is mainly overhaul of the equipments, prevents line side charged co-grounding switch, causes operating accident, Crisis Grid and
Personal safety.As long as the situation that multiple power supplys are powered on a circuit, the present invention is all suitable for.
Beneficial effects of the present invention：
The grounding switch locking device of the present invention is easy for installation, can be installed in the case where not having a power failure, and does not affect just
Normal power supply.
The present invention carries double lockset, and with double shield, one is that nose and lock are locked in the anti-lock pinning of conventional five, another
Individual is that the dead bolt that electric magnet drives is pinned, and needs to open conventional five anti-lock and electric magnet locks simultaneously when needing to open enclosing cover
Tongue.
Electric magnet of the present invention etc. is located at the inside of enclosing cover, and electric magnet effectively can be wrapped in it, does not affect it
Switch cubicle it is attractive in appearance, and have prevent from touching by mistake with the characteristics of dust, the corrosion of air.
Electrified display interlock apparatus contact is reliable, indicates correct, and locking in place, and is installed simple, is substantially reduced
The security threat of operation and maintainer, reaches target call.
Description of the drawings
Fig. 1 is the front view of grounding switch locking device；
Fig. 2 covers the surface structure schematic diagram on mounting base for the enclosing cover of grounding switch locking device；
Fig. 3 is the structural representation of dead bolt；
Fig. 4 is the structural representation of charged display device；
Fig. 5 is the integrated connection schematic diagram of block sytem；
Wherein, 1. draw-in groove, 2. dead bolt, 3. locks nose, 4. electric magnet, 5. shift knob, 6. latches, 7. baffle plate, 8. enclosing cover, 9.
Jointed shaft, 10. mounting base, 11. display lamps, 12. handles, 2.1 inclined-planes.
Specific embodiment
Below in conjunction with the accompanying drawings the invention will be further described with embodiment.
As Figure 1-Figure 2, grounding switch locking device, including enclosing cover 8, the left side of enclosing cover 8 is provided with the baffle plate 7 of protrusion,
Right side is hinged with mounting base 10 by jointed shaft 9, and enclosing cover 8 can be rotated around jointed shaft 9, that is, relative to mounting base 10
Rotate, mounting base 10 is provided with electric magnet 4, electric magnet 4 adopts the electric magnet of direct current 12V, and electric magnet 4 is provided with control, and its is powered
The shift knob 5 of power-off, electric magnet 4 is connected with dead bolt 2, and electric magnet 4 can drive dead bolt 2 to move, and enclosing cover 8 is provided with draw-in groove 1,
Dead bolt 2 can be stuck in draw-in groove 1 so that enclosing cover 1 is covered on mounting base 10.
The downside of enclosing cover 8 is connected with lock 6, and mounting base 10 is provided with lock nose 3.Using common five-proof program lock through
Lock nose 3 is pinned, and can also prevent enclosing cover 8 from opening.Mounting base 10 is provided with multiple installing holes.During mounting base 10 is arranged on
Put on cabinet.Baffle plate 7 is provided with handle 12.It is convenient to open enclosing cover.
As shown in Figure 3 the end face of dead bolt 2 is inclined-plane 2.1.Preferably, the angle of inclination of the end face of dead bolt 2 be 45 °, enclosing cover 8 around
When the upset of jointed shaft 9, cover on mounting base 10, dead bolt 2 is snapped in draw-in groove 1 so that enclosing cover 8 can not be opened.
Using the block sytem of grounding switch locking device, including electrification in high voltage sensor, electric capacity is adopted in the present embodiment
Formula sensor, such as Fig. 5 electrification in high voltage sensor are connected on high-tension line, and electrification in high voltage sensor connects with charged display device
Connect, charged display device is connected with the electric magnet of grounding switch locking device.Charged display device as shown in Figure 4, it is powered aobvious
Show and monitor to connect the signal with voltage on the capacitance sensor on distribution line just have electricity on explanation circuit.It can be clearly
The powered situation of three-phase is indicated, there are 3 display lamps 11 thereon, indicate respectively whether A, B, C three-phase is powered, line is represented When lit
Road is powered.
The blocking method of block sytem, when high-tension line is powered, electrification in high voltage sensor will be given powered aobvious with electrical information
Showing device, the contact of charged display device disconnects, and the dead electricity of electric magnet 4, dead bolt 2 is stuck in draw-in groove 1, and enclosing cover 8 is covered in mounting base
On 10, baffle plate 7 is kept off at central-positioned switch cabinet grounding switch operation mouth, it is impossible to open baffle plate 7, it is impossible to which insertion operation handle is carried out
Operation, it is impossible to close grounding switch；
When high-tension line is not charged, the junction closure of charged display device connects the power supply of electric magnet 4, pins shift knob
5, electric magnet 4 is powered, and the adhesive of electric magnet 4, dead bolt 2 withdraws, and opens enclosing cover 8, and such baffle plate 7 cannot be by grounding switch gathering hole
Block, being inserted into switch operation handle carries out the operation of grounding switch.
When chopper is in testing position, when there is electricity in line side, charged display device shows electricity and sends forced blocking,
Enclosing cover 8 is locked by dead bolt, and baffle plate 7 is kept off at central-positioned switch cabinet grounding switch operation mouth, and earthed switch cannot close.
When chopper is in testing position, only when line side is without electricity, and charged display device has electricity and normal, electricity
Magnet has electricity and normal, to open and pin shift knob 5 after five-proof program lock, opens enclosing cover 8, can close earthed switch.It is powered aobvious
Showing device or electric magnet 4 is arbitrary breaks down or dead electricity, cannot all carry out closing operation.Here " normal " refers to that this interval sets
Standby safe and reliable operation, to line powering, charged display device shows electricity for normal operation.When this spacing devices is overhauled,
This spacing devices has a power failure and does safety measure, and such as charged display device shows electricity for abnormal, declaratives equipment live, nothing
Method arrangement safety measure (grounding switch can not be closed), it is impossible to carry out upkeep operation.Judge whether normally to run shape according to equipment
State is carried out.
Locking grounding switch is the gathering hole that grounding switch is blocked using the outer baffle plate for covering of blocking device so as to cannot
Insertion operation handle is operated.Five-proof program lock operation principle is to define the chopper at this interval, circuit breaker cart and connect
The operation order of the equipment such as ground disconnecting link, locking cannot be realized when circuit has electricity, and the grounding switch locking device of the present invention is main
It is that locking grounding switch closes a floodgate when having electricity for line side, to prevent operating accident from occurring.Equipment behaviour is not carried out by code regulation
Make, five-proof program lock cannot be opened, therefore this grounding switch locking device enclosing cover 8 also will be unable to open locked.Therefore five anti-journeys
Sequence is locked and pins the enclosing cover 8 of grounding switch locking device jointly with the dead bolt 2 of latching electromagnet, and only two barring conditions all meet
During condition, the enclosing cover 8 of grounding switch locking device could be opened, after opening can insertion operation handle carry out grounding switch
Operation.
Although the above-mentioned accompanying drawing that combines is described to the specific embodiment of the present invention, not to present invention protection model
The restriction enclosed, one of ordinary skill in the art should be understood that on the basis of technical scheme those skilled in the art are not
Need the various modifications made by paying creative work or deformation still within protection scope of the present invention.
Claims (8)
1. the blocking method of circuit middle outgoing line cabinet earthed switch block sytem of handing in hand, is characterized in that, block sytem includes
Electrification in high voltage sensor, the electrification in high voltage sensor is connected on high-tension line, and electrification in high voltage sensor shows dress with powered
Connection is put, the charged display device is connected with the electric magnet of grounding switch locking device；Grounding switch locking device includes outer
Lid, the side of the enclosing cover is provided with the baffle plate of protrusion, and opposite side is hinged with mounting base, and the mounting base is provided with electromagnetism
Ferrum, the electric magnet is provided with the shift knob for controlling its energization power-off, and the electric magnet is connected with dead bolt, and the electric magnet can
Dead bolt movement, outer the covering is driven to be provided with draw-in groove, the dead bolt can be stuck in draw-in groove so that the enclosing cover is covered in the installation
On base plate；
When high-tension line is powered, electrification in high voltage sensor will give charged display device with electrical information, and charged display device connects
Point disconnects, and the electric magnet dead electricity, dead bolt is stuck in draw-in groove, and enclosing cover is covered on mounting base, and baffle plate is kept off in intermediate switchgear cabinet
At grounding switch gathering hole, it is impossible to open baffle plate, it is impossible to which insertion operation handle is operated, it is impossible to close grounding switch；
When high-tension line is not charged, the junction closure of charged display device connects electromagnet power supply, pins shift knob, electromagnetism
Tie Tong electricity, electromagnetic actuation, dead bolt withdraws, and opens enclosing cover, and grounding switch gathering hole cannot be blocked, then inserted by such baffle plate
Entering switch operation handle carries out the operation of grounding switch.
2. blocking method as claimed in claim 1, is characterized in that, the side of the enclosing cover is connected with lock, the mounting base
It is provided with lock nose.
3. blocking method as claimed in claim 1, is characterized in that, the side of the enclosing cover is connected with lock nose, the mounting base
It is provided with lock.
4. blocking method as claimed in claim 1, is characterized in that, the end face of the dead bolt is inclined-plane.
5. blocking method as claimed in claim 4, is characterized in that, the angle of inclination of the dead bolt end face [10 °, 90 °) it is interval
In the range of.
6. the blocking method as described in claim 4 or 5, is characterized in that, the angle of inclination of the dead bolt end face is 45 °.
7. blocking method as claimed in claim 1, is characterized in that, the mounting base is provided with multiple installing holes.
8. blocking method as claimed in claim 1, is characterized in that, the baffle plate is provided with handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510685243.8A CN105161348B (en) | 2015-10-20 | 2015-10-20 | Hand-in-hand line centrally-positioned wire-outgoing switchgear grounding switch blocking device, system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510685243.8A CN105161348B (en) | 2015-10-20 | 2015-10-20 | Hand-in-hand line centrally-positioned wire-outgoing switchgear grounding switch blocking device, system and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105161348A CN105161348A (en) | 2015-12-16 |
| CN105161348B true CN105161348B (en) | 2017-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510685243.8A Active CN105161348B (en) | 2015-10-20 | 2015-10-20 | Hand-in-hand line centrally-positioned wire-outgoing switchgear grounding switch blocking device, system and method |
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| Country | Link |
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| CN (1) | CN105161348B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108010765A (en) * | 2017-11-15 | 2018-05-08 | 国网浙江省电力公司台州供电公司 | Power distribution automation FTU misoperation-proof locking devices |
| CN111988026B (en) * | 2020-09-02 | 2024-03-22 | 江苏捷顺机电工程有限公司 | Non-contact proximity switch device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201252359Y (en) * | 2008-09-05 | 2009-06-03 | 河南森源电气股份有限公司 | Earthing handcart locking device |
| CN201766009U (en) * | 2010-08-20 | 2011-03-16 | 石家庄开发区新导配电自动化有限公司 | Manual operation system of two-position isolating switch |
| CN202167781U (en) * | 2011-08-22 | 2012-03-14 | 新疆昆仑电气有限公司 | Latching electromagnet protective device for a switch cabinet grounding switch hole valve |
| CN202167368U (en) * | 2011-07-26 | 2012-03-14 | 上海纳杰电气成套有限公司 | Strong-current blocking electric control system of grounding switch |
| CN204991583U (en) * | 2015-10-20 | 2016-01-20 | 国网山东汶上县供电公司 | Hand in hand formula of putting be qualified for next round of competitions cabinet earthing switch blocking device and locking system in circuit |
-
2015
- 2015-10-20 CN CN201510685243.8A patent/CN105161348B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201252359Y (en) * | 2008-09-05 | 2009-06-03 | 河南森源电气股份有限公司 | Earthing handcart locking device |
| CN201766009U (en) * | 2010-08-20 | 2011-03-16 | 石家庄开发区新导配电自动化有限公司 | Manual operation system of two-position isolating switch |
| CN202167368U (en) * | 2011-07-26 | 2012-03-14 | 上海纳杰电气成套有限公司 | Strong-current blocking electric control system of grounding switch |
| CN202167781U (en) * | 2011-08-22 | 2012-03-14 | 新疆昆仑电气有限公司 | Latching electromagnet protective device for a switch cabinet grounding switch hole valve |
| CN204991583U (en) * | 2015-10-20 | 2016-01-20 | 国网山东汶上县供电公司 | Hand in hand formula of putting be qualified for next round of competitions cabinet earthing switch blocking device and locking system in circuit |
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| Publication number | Publication date |
|---|---|
| CN105161348A (en) | 2015-12-16 |
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| CB03 | Change of inventor or designer information |
Inventor after: Zheng Cantao Inventor after: Ma Xiaoxiao Inventor after: Wang Chengxin Inventor after: Zhao Yong Inventor after: Xu Hui Inventor after: Guo Bing Inventor after: Dong Cong Inventor after: Zhu Xinyu Inventor after: He Weiguo Inventor after: Wei Ke Inventor after: Li Derong Inventor after: Ou Qingman Inventor before: Zheng Cantao Inventor before: Wang Chengxin Inventor before: Zhao Yong Inventor before: Guo Bing Inventor before: He Weiguo Inventor before: Wei Ke Inventor before: Li Derong Inventor before: Ou Qingman Inventor before: Dong Cong Inventor before: Ma Xiaoxiao Inventor before: Hu Feng |
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