CN206546789U - The anti-powered conjunction earthing knife-switch blocking device of one kind - Google Patents
The anti-powered conjunction earthing knife-switch blocking device of one kind Download PDFInfo
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- CN206546789U CN206546789U CN201720292796.1U CN201720292796U CN206546789U CN 206546789 U CN206546789 U CN 206546789U CN 201720292796 U CN201720292796 U CN 201720292796U CN 206546789 U CN206546789 U CN 206546789U
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- earthing
- contact
- switch
- grounding
- handcart
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Abstract
The utility model provides a kind of anti-powered conjunction earthing knife-switch blocking device, including：Pass in and out car hole, latching electromagnet, car body, the manually operated hole of earthing knife-switch, earthing spring, electrification display, secondary latch locking push pedal, earthing, sensor, contact arm, Mume flower contact, a valve push pedal, earthing bar, auxiliary switch, secondary latch, experiment power supply, electrical verification lock, observation window, grounding switch position indicator, buzzer, five anti-locksets, earthing static contact and earthing moving contact.Can the utility model solve switch cubicle and turn prevent the problem of powered conjunction earthing knife-switch during maintenance, can improve equipment reliability of operation, especially substantially reduce the safe operation risk of operations staff.Than current earth handcart, electricity-testing handcart, with light weight, cost is low, function is more perfect, operation is safer, it is reliable the characteristics of.By electric, electromagnetism and micro_computer five_proof blocking function, realization prevents the generation of live ground wiring accident.
Description
Technical field
The utility model belongs to substation safety protector technical field, more particularly to a kind of anti-powered conjunction earthing knife-switch locking
Device.
Background technology
With continuing to develop for power technology, 6-35kV equipment is generally replaced by metal armouring cabinet under present circumstances, for
How bus electrical verification, ground connection with voltage class prevent that powered conjunction earthing knife-switch is a great problem of long-standing problem operational management unit,
Some switch cabinet bus maintenance electrical verification earth handcarts are two independent handcarts, do not have anti-error behaviour between electrical verification and ground connection operation
Make function, lack safety and reliability.Therefore, the convenience safety between the electrical verification of switch cabinet bus work and ground connection is improved
Property and reliability, be improve Operation of Electric Systems managerial skills urgent problem to be solved.
Utility model content
Can the purpose of this utility model be to solve switch cubicle to turn prevent the problem of powered conjunction earthing knife-switch during maintenance, prevents closing by five
The setting of lock, which is realized, prevents the generation of live ground wiring accident.
The technical solution of the utility model is：
The anti-powered conjunction earthing knife-switch blocking device of one kind, including：Turnover car hole, latching electromagnet, car body, earthing knife-switch are manually operated
Hole, earthing spring, electrification display, secondary latch locking push pedal, earthing, sensor, contact arm, Mume flower contact, once live
Push plate, earthing bar, auxiliary switch, secondary latch, experiment power supply, electrical verification lock, observation window, grounding switch position indicator, honeybee
Ring device, five anti-locksets, earthing static contact and earthing moving contact；
The turnover car hole is used to being pushed into and pulling out electrical verification earth handcart, is operated by latching electromagnet control turnover handcart
The electric blocking of the handle hole of hole and grounded part, handcart body is used to each part is made；The manually operated hole of earthing knife-switch is
Manual division grounding switch, can control to be grounded the division of moving contact by earthing spring；It can be shown on electrification display
Maintenance bus three-phase has no-voltage；It can overhaul whether bus is grounded by earthing；Sensor, which can sense bus three-phase, to be had
No-voltage, provides induced voltage for powered display, is connected moving contact and sensor by contact arm, Mume flower contact is used for and cabinet
The contact of body static contact；Valve push pedal is used for the unlatching for controlling contact isolation baffle plate above and below cabinet；Earthing bar ensures maintenance
The reliable contacts of bus and main grounding grid；Secondary latch is used to connect secondary circuit, and it is intact that experiment power supply is used for electrification display
Property check, electrical verification lock can prevent by mistake division earthing；It check that grounding switch divide-shut brake and moving contact connect by observation window
The situation of touching, and Grounding is shown by grounding switch position indicator；When charged display device has sensed electricity, pass through honeybee
The device that rings carries out audio alert, reminds operating personnel；Five anti-locksets can prevent mistakenly entering charged chamber, it is ensured that earth point it is unique
Property；Anti-misoperation for earthing or grounding means and handcart；Earthing static contact is grounded the reliable contacts of moving contact, ground connection with earthing
The reliable contacts of knife moving contact and earthing grounding static contact.
The beneficial effects of the utility model embody in the following areas：
Can the utility model solve switch cubicle and turn prevent the problem of powered conjunction earthing knife-switch during maintenance, can improve equipment operation
Reliability, especially substantially reduces the safe operation risk of operations staff.Than current earth handcart, electricity-testing handcart, have
Light weight, cost are low, function is more perfect, operation is safer, it is reliable the characteristics of.Pass through electric, electromagnetism and micro_computer five_proof locking work(
Can, realization prevents the generation of live ground wiring accident.
Brief description of the drawings
Fig. 1 is anti-powered conjunction earthing knife-switch blocking device general structure schematic diagram described in the utility model.
Fig. 2 is anti-powered conjunction earthing knife-switch blocking device internal structure schematic diagram described in the utility model.
Fig. 3 is anti-powered conjunction earthing knife-switch blocking device circuit diagram described in the utility model.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings, to make those skilled in the art with reference to explanation
Book word can be implemented according to this.
As shown in Figure 1 and Figure 2, the utility model provides a kind of anti-powered conjunction earthing knife-switch blocking device, including：Pass in and out car hole
1st, the manually operated hole 4 of latching electromagnet 2, car body 3, earthing knife-switch, earthing spring 5, electrification display 6, secondary latch locking are pushed away
It is plate 7, earthing 8, sensor 9, contact arm 10, Mume flower contact 11, a valve push pedal 12, earthing bar 13, auxiliary switch 14, secondary
Latch 15, experiment power supply 16, electrical verification lock 17, observation window 18, grounding switch position indicator 19, buzzer 20, five anti-locksets 21,
Earthing static contact 22 and earthing moving contact 23.
Turnover car hole 1 is used to being pushed into and pulling out electrical verification earth handcart, passes through the control turnover handcart handle hole of latching electromagnet 2
With the electric blocking of the handle hole of grounded part, handcart body 3 is used to each part is made.The manually operated hole 4 of earthing knife-switch is
Manual division grounding switch, can control to be grounded the division of moving contact by earthing spring 5.It can show on electrification display 6
Show that maintenance bus three-phase has no-voltage.It can overhaul whether bus is grounded by earthing 8.Sensor 9 can sense bus three
Mutually there is no-voltage, provide induced voltage for powered display, be connected moving contact and sensor 9, Mume flower contact by contact arm 10
11 are used for the contact with cabinet static contact.Valve push pedal 12 is used for the unlatching for controlling contact isolation baffle plate above and below cabinet.Connect
Ground row 13 ensures the reliable contacts of maintenance bus and main grounding grid.Secondary latch 15 is used to connect secondary circuit, experiment power supply 16
Checked for electrification display integrity, electrical verification lock 17 can prevent division earthing by mistake.It check that and connect by observation window 18
Ground disconnecting link divide-shut brake and moving contact contact situation, and Grounding is shown by grounding switch position indicator 19.When powered aobvious
When showing device has sensed electricity, audio alert is carried out by buzzer 20, operating personnel are reminded.Five anti-locksets 21 can prevent from missing
Entering into charged intervals, it is ensured that the uniqueness of earth point；Anti-misoperation for earthing or grounding means and handcart.Earthing static contact 22 is with connecing
Earthing knife-switch is grounded the reliable contacts of moving contact, the reliable contacts of earthing moving contact 23 and earthing grounding static contact.
As shown in figure 3, symbol annotation is in figure：
DST1、DST2：Electromagnet
H：Electrification display
FM：Buzzer
S9：Operating position auxiliary switch
KA、KA2：Auxiliary reclay (is installed on integrated electricity-detection grounding device)
DXN：Sensor
ZJ、ZJ2：Auxiliary reclay (is installed on PT cabinets low-pressure chamber)
DY1、DY2：Voltage relay (is installed on PT cabinets low-pressure chamber)
R1：Resistance, (being installed on integrated electricity-detection grounding device) is replaced for alternating current-direct current signal lamp
Wherein, 2, PT cabinets increase voltage relay (DY1, DY2), voltage relay expands contact relay (ZJ2) 1；
The integrated electrical verification earth handcart device operating position relay ZJ 1 of PT cabinets increase.
The utility model with reference to the characteristics of switch cubicle kind equipment, designs what is matched with outlet switch according to Field Research
Hand carriage base, installs electrical verification, earthing or grounding means, five-defence block, push pedal, secondary latch etc. on pedestal, realize electroscopic device and
Forced blocking is realized between earthing or grounding means, the reliable locking earthing or grounding means in the case where identification has electricity.Bus-bar potential transformer two
It is secondary to have pressure, forced blocking earthing or grounding means.The device grounding switch realizes forced blocking with turnover car hole, when grounding switch closes position
Forced locking device handcart.Micro_computer five_proof blocking device is put, by logic association relation, the five of the handle hole of part are grounded
Anti- blocking function.
It is not used before the utility model device, traditional electricity-testing handcart, earth handcart working method are after bus has a power failure, to incite somebody to action
PT switching on/off handcarts are drawn out to behind maintenance position, and electricity-testing handcart is pushed into the PT intervals, are identified after the true no-voltage of three-phase, pull out electrical verification
Handcart, then earth handcart is pushed into the PT intervals, complete ground connection operation.There are problems that following defect and：(1) closed without micro_computer five_proof
Lock function, causes the handle hole of grounded part without locking, does not meet《Electric power safety working regulation》Regulation.(2) without electric, electricity
The forced locking devices such as magnetic, easily occur live ground wiring accident.
Using the utility model device, by the further investigation to electricity-testing handcart and earth handcart operation principle, pass through peace
Dress control handcart turnover and the electromagnet of grounding switch handle hole, and it is perfect to coordinate micro_computer five_proof to carry out blocking function, this
Utility model focuses on to solve the problems, such as following four：1. the reliable locking earthing or grounding means in the case where identification has electricity.2. busbar voltage
Transformer is secondary pressure, forced blocking earthing or grounding means.Forced locking device handcart when 3. grounding switch closes position.4. configure microcomputer five
Anti- blocking device, electroscopic device, which identifies bus, electricity, and grounding switch handle hole five is anti-lock to be unlocked.
The utility model realizes perfect anti mis-closedown function, has electricity or dress bus, bus-bar potential transformer are secondary
Grounding switch is put when closing position, live ground wiring is effectively prevented.
Although embodiment of the present utility model is disclosed as above, it is not restricted in specification and embodiment
It is listed to use.It can be applied to various suitable fields of the present utility model completely.For those skilled in the art,
Other modification is easily achieved.Therefore under the universal limited without departing substantially from claim and equivalency range, this reality
Specific details is not limited to new and shown here as the legend with description.
Claims (1)
1. the anti-powered conjunction earthing knife-switch blocking device of one kind, it is characterised in that including：Pass in and out car hole, latching electromagnet, car body,
The manually operated hole of knife, earthing spring, electrification display, secondary latch locking push pedal, earthing, sensor, contact arm, plum blossom touch
Head, a valve push pedal, earthing bar, auxiliary switch, secondary latch, experiment power supply, electrical verification lock, observation window, grounding switch position
Indicator lamp, buzzer, five anti-locksets, earthing static contact and earthing moving contact；
The turnover car hole is used to being pushed into and pulling out electrical verification earth handcart, by latching electromagnet control turnover handcart handle hole and
The electric blocking of the handle hole of grounded part, handcart body is used to each part is made；The manually operated hole of earthing knife-switch is manual
Division grounding switch, can control to be grounded the division of moving contact by earthing spring；Maintenance can be shown on electrification display
Bus three-phase has no-voltage；It can overhaul whether bus is grounded by earthing；Sensor can sense bus three-phase whether there is electricity
Pressure, provides induced voltage for powered display, is connected moving contact and sensor by contact arm, Mume flower contact is for quiet with cabinet
The contact of contact；Valve push pedal is used for the unlatching for controlling contact isolation baffle plate above and below cabinet；Earthing bar ensures maintenance bus
With the reliable contacts of main grounding grid；Secondary latch is used to connect secondary circuit, and experiment power supply is examined for electrification display integrity
Look into, electrical verification lock can prevent division earthing by mistake；It check that grounding switch divide-shut brake and moving contact contact feelings by observation window
Condition, and Grounding is shown by grounding switch position indicator；When charged display device has sensed electricity, pass through buzzer
Audio alert is carried out, operating personnel are reminded；Five anti-locksets can prevent mistakenly entering charged chamber, it is ensured that the uniqueness of earth point；With
In the anti-misoperation of earthing or grounding means and handcart；Earthing static contact is grounded the reliable contacts of moving contact with earthing, and earthing is moved
The reliable contacts of contact and earthing grounding static contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720292796.1U CN206546789U (en) | 2017-03-24 | 2017-03-24 | The anti-powered conjunction earthing knife-switch blocking device of one kind |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720292796.1U CN206546789U (en) | 2017-03-24 | 2017-03-24 | The anti-powered conjunction earthing knife-switch blocking device of one kind |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206546789U true CN206546789U (en) | 2017-10-10 |
Family
ID=59996042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720292796.1U Active CN206546789U (en) | 2017-03-24 | 2017-03-24 | The anti-powered conjunction earthing knife-switch blocking device of one kind |
Country Status (1)
| Country | Link |
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| CN (1) | CN206546789U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111952876A (en) * | 2020-07-27 | 2020-11-17 | 国网福建省电力有限公司三明供电公司 | Electricity testing and grounding function integrated handcart device |
| CN112436423A (en) * | 2020-12-04 | 2021-03-02 | 上海平高天灵开关有限公司 | Handcart equipment for direct-current metal switch equipment |
| CN115810985A (en) * | 2023-02-06 | 2023-03-17 | 成都理工大学 | Low-voltage power supply distribution cabinet of multifunctional safety protection system |
-
2017
- 2017-03-24 CN CN201720292796.1U patent/CN206546789U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111952876A (en) * | 2020-07-27 | 2020-11-17 | 国网福建省电力有限公司三明供电公司 | Electricity testing and grounding function integrated handcart device |
| CN112436423A (en) * | 2020-12-04 | 2021-03-02 | 上海平高天灵开关有限公司 | Handcart equipment for direct-current metal switch equipment |
| CN115810985A (en) * | 2023-02-06 | 2023-03-17 | 成都理工大学 | Low-voltage power supply distribution cabinet of multifunctional safety protection system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210526 Address after: 730000 NO.67, Beibinhe West Road, Anning District, Lanzhou City, Gansu Province Patentee after: Lanzhou Yineng power (Group) Co.,Ltd. Address before: 730000, No. 132, Taolin Road, Anning District, Lanzhou City, Gansu Province Patentee before: LANZHOU POWER SUPPLY COMPANY OF STATE GRID GANSU ELECTRIC POWER Co. Patentee before: Guo Rui |