CN110273587A - A kind of ring network cabinet earthing switch anti-error lock - Google Patents
A kind of ring network cabinet earthing switch anti-error lock Download PDFInfo
- Publication number
- CN110273587A CN110273587A CN201910368282.3A CN201910368282A CN110273587A CN 110273587 A CN110273587 A CN 110273587A CN 201910368282 A CN201910368282 A CN 201910368282A CN 110273587 A CN110273587 A CN 110273587A
- Authority
- CN
- China
- Prior art keywords
- earthing switch
- tripper
- ring network
- network cabinet
- blocking device
- 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.)
- Granted
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B47/0001—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B65/00—Locks or fastenings for special use
Landscapes
- Lock And Its Accessories (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention discloses a kind of ring network cabinet earthing switch anti-error locks, including blocking device and tripper, blocking device is equipped with magnetic freeze mode electromagnet, magnetic freeze mode electromagnet uses pulsed drive, the power supply for pulsed drive is equipped in tripper, tripper is in unlocking process close to magnetic freeze mode electromagnet；Induction type capacitance sensor is additionally provided on blocking device, induction type capacitance sensor is for obtaining three-phase high-voltage signal.Ring network cabinet earthing switch anti-error lock, which can ensure that, just can be carried out unlocking in the case where high-voltage end is without electricity, and realizing passive anti-error forced locking device has electric locking, without lock, i.e. electrical verification unlocking function is established by cable, ensure the safety of operator.
Description
Technical field
The present invention relates to high voltage electric equipment manufacturing technology fields, refer in particular to a kind of ring network cabinet earthing switch error preventing lock
Tool.
Background technique
The earthing switch of high-voltage ring main unit is the important device for guaranteeing overhaul of the equipments personnel personal safety.(1) it is set when electrically
It is standby when carrying out interruption maintenance, for may power transmission to all directions or power failure equipments of power failure equipments, there may be induced voltages
Earthing switch (or hanging up ground line) will be closed, this be in order to prevent service personnel in power failure equipments (or power failure operating point) work
Unexpected power transmission suddenly when making, it is ensured that the reliable and secure measure of service personnel's personal safety.(2) on the electrical equipment that ring network cabinet disconnects
Have residual charge, can be discharged totally by ground switch earthing.The earthing switch of high-voltage ring main unit is to guarantee overhaul of the equipments people
Member's personal safety, a kind of mechanical grounding device for high-voltage ring main unit ground connection.When electrical equipment carries out interruption maintenance, for
Possible power transmission to power failure equipments all directions or power failure equipments there may be induced voltage will close earthing switch (or hang
Upper ground line), this is service personnel's unexpected power transmission suddenly when power failure equipments (or power failure operating point) works in order to prevent, it is ensured that
The reliable and secure measure of service personnel's personal safety, while the residual charge on the electrical equipment that is disconnected of ring network cabinet, can also be by
Earthing switch closes ground connection and discharges totally.Earthing switch is closed in electrification, and earthing switch is not switched on power transmission, and earthing switch is selected not
When, in addition have user's uneasiness dress earthing switch or without authorization by earthing switch remove (usually incoming line cabinet), this all can serious prestige
The personal safety and Electrical Safety for coercing service personnel, cause serious pernicious liability accident.In this regard, power industry standard
DL408-91 " electrical safe working order " makes stringent regulation.But in recent years, due to external import or introducing external first
High-voltage ring main unit and China of the high-voltage ring main unit and China manufactured into technology by " five is anti-" requirement self-developing production
Difference of the old product in structure, when overhauling to high-voltage ring main unit, operation sequence often conflicts with " regulation ", special
It is not whether the earthing switch of high-voltage ring main unit incoming line cabinet is arranged and how to take reliable, effective, simple anti-error measure, respectively
There are different understanding and requirement in electricity consumption, power supply department and high-voltage ring main unit manufactory, often system design, bid order goods,
It checks and accepts each link of power transmission and generates contradiction and dispute, so, a kind of ring network cabinet earthing switch novel intelligent anti-error lock popularization and application
It will have very important significance to the safe and reliable operation of electric system.
In recent years, due to the high-voltage ring main unit and China of external import or the Importing Foreign Advanced Technology manufacturing
By the high-voltage ring main unit and difference of China's old product in structure of " five is anti-" requirement self-developing production, to high-voltage ring main unit
When being overhauled, operation sequence often conflicts with " regulation ", and especially whether the earthing switch of high-voltage ring main unit incoming line cabinet
Setting and how to take reliable, effective, simple anti-error measure, each electricity consumption, power supply department and high-voltage ring main unit manufactory are equal
There are different understanding and requirement, often generates contradiction and dispute in system design, bid order, each link of examination power transmission.To keep away
Exempt from the generation of such accident, certain power supply departments require earthing switch dismounting or Permanent lock by rear class high-voltage switch gear outgoing line cabinet
Extremely.But once earthing switch is removed or permanently locked, the mechanical interlocking between earthing switch and cable vault gate also wants phase
It should release, otherwise cable vault gate can not be opened.But as the mechanical interlocking releasing between earthing switch and cable vault gate, behaviour
Cable vault gate is opened in the case where being possible to charge in cable vault as personnel, seriously threatens the person peace of operator
Entirely.
Summary of the invention
The purpose of the present invention is overcoming, relevant operation personnel are when overhauling ring network cabinet in the prior art, earthing switch
Cable vault gate is opened in the case that defect in design causes operator that may charge in cable vault, seriously threatens behaviour
The shortcomings that making the personal safety of personnel provides a kind of ring network cabinet earthing switch anti-error lock.
The purpose of the present invention is be achieved by following technical proposals:
A kind of ring network cabinet earthing switch anti-error lock, including blocking device and tripper, blocking device are equipped with magnetic freeze mode
Electromagnet, magnetic freeze mode electromagnet use pulsed drive, and the power supply for pulsed drive, unlock dress are equipped in tripper
It sets in unlocking process close to magnetic freeze mode electromagnet；Induction type capacitance sensor, induction type capacitor are additionally provided on blocking device
Sensor is for obtaining three-phase high-voltage signal.Blocking device itself uses the mode of having no chance, and passes through magnetic freeze mode under non-unlocking condition
Electromagnet keeps locked state, and capacitance sensor obtains three-phase high-voltage signal, which is sent to locking dress by shielded cable
It sets as whether unlocking criterion, as long as there is a phase high-voltage end to have electricity, passive anti-error forced locking device cannot unlock, as long as high
Pressure side is out of power, can unlock.The process of unlocking is tripper close to the magnetic freeze mode electromagnet of blocking device, protects magnetic
The formula electromagnet of holding acts, and then unlocks blocking device, and realizing passive anti-error forced locking device has electric locking, without electricity
It unlocks, i.e. electrical verification unlocking function.
As a preferred embodiment, the blocking device is equipped with lockhole, and the tripper is solution lock key, lockhole
The interior spring that is equipped with drives sliding equipment, and spring drives sliding equipment reconciliation lock key to be cooperatively connected.
As a preferred embodiment, the blocking device is externally provided with plexiglass tent.Plexiglass tent increases protection
Grade.
As a preferred embodiment, the capacity of the induction type capacitance sensor is 5PF-15PF.
As a preferred embodiment, the power supply is the power supply of 12VDC.Due to using low power dissipation design, make its service life
It greatly improves, the blocking device developed is suitable for mother cabinet and ring network cabinet, increases its application range.
As a preferred embodiment, the power supply of 12VDC is the button cell being arranged in blocking device.
As a preferred embodiment, ring network cabinet earthing switch anti-error lock further includes remote control terminal, the unlock
Device is equipped with signal receiving device, single-chip microcontroller and control device, and remote control terminal with signal receiving device by wirelessly connecting
It connects, signal receiving device is connected with single-chip microcontroller, and single-chip microcontroller is connected with control device, and control device is for controlling tripper
It is also used to control the on-off of power supply close to blocking device cutting control device.Remote control terminal can send control signal control solution
Locking device is unlocked process, and operator is made not need to further improve safety close to ring network cabinet.
As a preferred embodiment, Hall proximity transducer, Hall proximity transducer and monolithic are additionally provided on tripper
Machine is connected.Hall proximity transducer is for judging magnetic freeze mode.
As a preferred embodiment, sender unit, sender unit and single-chip microcontroller phase are additionally provided on tripper
Even, sender unit also passes through wireless connection with remote control terminal.Remote control terminal can receive tripper transmission
Signal, once failure of unlocking, remote control terminal can learn in time information to take appropriate measures.
The invention has the advantages that ring network cabinet earthing switch anti-error lock can ensure that in the case where high-voltage end is without electricity
It can be carried out unlocking, realizing passive anti-error forced locking device has electric locking, without lock, i.e. electrical verification unlocking function is established by cable, ensures
The safety of operator.And it is the configuration of the present invention is simple, practical.
Detailed description of the invention
Fig. 1 is a kind of circuit theory connection figure of the invention.
Wherein: 1, blocking device, 2, tripper, 3, remote control terminal, 4, three-phase high-voltage signal, 11, magnetic freeze mode
Electromagnet, 12, induction type capacitance sensor, 21, power supply, 22, signal receiving device, 23, sender unit, 24, single-chip microcontroller,
25, control device, 26, Hall proximity transducer.
Specific embodiment
The present invention is further described with reference to the accompanying drawings and examples.
Embodiment: a kind of ring network cabinet earthing switch anti-error lock, as shown in Figure 1, including blocking device 1 and tripper 2,
Blocking device is equipped with magnetic freeze mode electromagnet 11, and magnetic freeze mode electromagnet uses pulsed drive, is equipped with and uses in tripper
In the power supply 21 of pulsed drive, tripper is in unlocking process close to magnetic freeze mode electromagnet；It is additionally provided on blocking device
Induction type capacitance sensor 12, induction type capacitance sensor is for obtaining three-phase high-voltage signal.Blocking device is equipped with lockhole, described
Tripper be solution lock key, spring is equipped in lockhole and drives sliding equipment, spring driving sliding equipment reconciliation lock key is matched
Close connection.Blocking device is externally provided with plexiglass tent.The capacity of induction type capacitance sensor is 10PF.Power supply is that setting is being latched
12VDC button cell in device.A kind of ring network cabinet earthing switch anti-error lock further includes remote control terminal 3, the solution
Locking device is equipped with signal receiving device 22, single-chip microcontroller and control device, and remote control terminal is filled by wirelessly receiving with signal
Connection is set, signal receiving device is connected with single-chip microcontroller, and single-chip microcontroller 24 is connected with control device 25, and control device is for controlling
Tripper is also used to control the on-off of power supply close to blocking device cutting control device.Hall is additionally provided on tripper close to biography
Sensor, Hall proximity transducer 26 are connected with single-chip microcontroller.Sender unit 23, sender unit are additionally provided on tripper
It is connected with single-chip microcontroller, sender unit also passes through wireless connection with remote control terminal.
Blocking device itself uses the mode of having no chance, and passes through magnetic freeze mode electromagnet under non-unlocking condition and keeps locked state,
Capacitance sensor obtains three-phase high-voltage signal, which is sent to blocking device by shielded cable and is used as criterion of whether unlocking,
As long as there is a phase high-voltage end to have electricity, passive anti-error forced locking device cannot unlock, and can open as long as high-voltage end is out of power
Lock.The process of unlocking is tripper close to the magnetic freeze mode electromagnet of blocking device, acts magnetic freeze mode electromagnet,
And then blocking device is unlocked, realizing passive anti-error forced locking device has electric locking, without lock is established by cable, i.e. electrical verification unlocks function
Energy.
Above-mentioned embodiment is only a preferred solution of the present invention, not the present invention is made in any form
Limitation, there are also other variations and modifications on the premise of not exceeding the technical scheme recorded in the claims.
Claims (9)
1. a kind of ring network cabinet earthing switch anti-error lock, characterized in that including blocking device and tripper, set on blocking device
There is magnetic freeze mode electromagnet, magnetic freeze mode electromagnet uses pulsed drive, is equipped in tripper for pulsed drive
Power supply, tripper is in unlocking process close to magnetic freeze mode electromagnet；Induction type capacitance sensor is additionally provided on blocking device,
Induction type capacitance sensor is for obtaining three-phase high-voltage signal.
2. a kind of ring network cabinet earthing switch anti-error lock according to claim 1, characterized in that the blocking device is set
Have a lockhole, the tripper is solution lock key, spring is equipped in lockhole and drives sliding equipment, spring drive sliding equipment and
Lock key is solved to be cooperatively connected.
3. a kind of ring network cabinet earthing switch anti-error lock according to claim 1 or 2, characterized in that the locking dress
It sets and is externally provided with plexiglass tent.
4. a kind of ring network cabinet earthing switch anti-error lock according to claim 1, characterized in that the induction type capacitor
The capacity of sensor is 5PF-15PF.
5. a kind of ring network cabinet earthing switch anti-error lock according to claim 1, characterized in that the power supply is
The power supply of 12VDC.
6. a kind of ring network cabinet earthing switch anti-error lock according to claim 5, characterized in that the power supply of 12VDC is to set
Set the button cell in blocking device.
7. a kind of ring network cabinet earthing switch anti-error lock according to claim 1, characterized in that further include that long-range control is whole
End, the tripper be equipped with signal receiving device, single-chip microcontroller and control device, remote control terminal by wirelessly with letter
The connection of number reception device, signal receiving device are connected with single-chip microcontroller, and single-chip microcontroller is connected with control device, and control device is used for
Control tripper is also used to control the on-off of power supply close to blocking device cutting control device.
8. a kind of ring network cabinet earthing switch anti-error lock according to claim 7, characterized in that on the tripper
It is additionally provided with Hall proximity transducer, Hall proximity transducer is connected with single-chip microcontroller.
9. a kind of ring network cabinet earthing switch anti-error lock according to claim 8, characterized in that be additionally provided on tripper
Sender unit, sender unit are connected with single-chip microcontroller, and sender unit is also with remote control terminal by wirelessly connecting
It connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910368282.3A CN110273587B (en) | 2019-05-05 | 2019-05-05 | Anti-misoperation lockset of ring main unit grounding switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910368282.3A CN110273587B (en) | 2019-05-05 | 2019-05-05 | Anti-misoperation lockset of ring main unit grounding switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110273587A true CN110273587A (en) | 2019-09-24 |
| CN110273587B CN110273587B (en) | 2021-10-22 |
Family
ID=67960312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910368282.3A Active CN110273587B (en) | 2019-05-05 | 2019-05-05 | Anti-misoperation lockset of ring main unit grounding switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110273587B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111091988A (en) * | 2019-12-20 | 2020-05-01 | 国网浙江海盐县供电有限公司 | Looped netowrk cabinet earthing switch maloperation blocking device that prevents |
| CN112814489A (en) * | 2021-02-03 | 2021-05-18 | 广东金力变速科技股份有限公司 | Hall linear device based electric lock anti-misoperation lock device, method and controller |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6131423A (en) * | 1997-10-30 | 2000-10-17 | Asea Brown Boveri Ag | Safety door-locking system for switchgear cabinets |
| CN202059053U (en) * | 2011-05-10 | 2011-11-30 | 于宝成 | Safety protective lockset of high-voltage electrical switch cabinet |
| CN102881491A (en) * | 2011-07-12 | 2013-01-16 | 上海市电力公司 | Passive forcible locking device |
| CN104453380A (en) * | 2014-12-02 | 2015-03-25 | 国家电网公司 | Handheld electronic unlocking key |
| CN206110865U (en) * | 2016-09-08 | 2017-04-19 | 深圳易通技术股份有限公司 | Electronic lock system |
| CN207925349U (en) * | 2018-03-24 | 2018-09-28 | 常州帕斯菲克自动化技术股份有限公司 | A kind of blocking device of the anti-hot line job of high-tension switch cabinet |
| CN208689639U (en) * | 2018-07-19 | 2019-04-02 | 珠海优特电力科技股份有限公司 | Tripper and lock system |
-
2019
- 2019-05-05 CN CN201910368282.3A patent/CN110273587B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6131423A (en) * | 1997-10-30 | 2000-10-17 | Asea Brown Boveri Ag | Safety door-locking system for switchgear cabinets |
| CN202059053U (en) * | 2011-05-10 | 2011-11-30 | 于宝成 | Safety protective lockset of high-voltage electrical switch cabinet |
| CN102881491A (en) * | 2011-07-12 | 2013-01-16 | 上海市电力公司 | Passive forcible locking device |
| CN104453380A (en) * | 2014-12-02 | 2015-03-25 | 国家电网公司 | Handheld electronic unlocking key |
| CN206110865U (en) * | 2016-09-08 | 2017-04-19 | 深圳易通技术股份有限公司 | Electronic lock system |
| CN207925349U (en) * | 2018-03-24 | 2018-09-28 | 常州帕斯菲克自动化技术股份有限公司 | A kind of blocking device of the anti-hot line job of high-tension switch cabinet |
| CN208689639U (en) * | 2018-07-19 | 2019-04-02 | 珠海优特电力科技股份有限公司 | Tripper and lock system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111091988A (en) * | 2019-12-20 | 2020-05-01 | 国网浙江海盐县供电有限公司 | Looped netowrk cabinet earthing switch maloperation blocking device that prevents |
| CN112814489A (en) * | 2021-02-03 | 2021-05-18 | 广东金力变速科技股份有限公司 | Hall linear device based electric lock anti-misoperation lock device, method and controller |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110273587B (en) | 2021-10-22 |
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