CN207459538U - A kind of electrical verification earth handcart device - Google Patents
A kind of electrical verification earth handcart device Download PDFInfo
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- CN207459538U CN207459538U CN201720292777.9U CN201720292777U CN207459538U CN 207459538 U CN207459538 U CN 207459538U CN 201720292777 U CN201720292777 U CN 201720292777U CN 207459538 U CN207459538 U CN 207459538U
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- earthing
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- grounding
- electrical verification
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Abstract
Based on existing same voltage class busbar work how direct electrical verification, a series of problems of ground connection, this project is proposed with " electrical verification earth handcart integration, electroscopic device integrity inspection, the uniqueness of earth point, preventing mistakenly entering charged chamber, anti- live ground wiring closes grounding switch, anti- band ground wire or grounding switch combined floodgate power transmission, valve opening ways control, device /V, earthing or grounding means mode of operation controls, remote signalling, earthing or grounding means position detection, the integrated electrical verification earth handcart apparatus integration electricity-detection grounding device of 12 functions of electrical inside and outside connection ", for the ground connection of 6 35kV metal armouring cabinet busbar overhauls.
Description
Technical field
The invention belongs to electric machinery fields, and in particular to a kind of electrical verification earth handcart device.
Background technology
With the continuous development of power technology, 6-35kV equipment is generally changed to metal armouring cabinet under present circumstances, for
With voltage class busbar work how direct electrical verification, ground connection be long-standing problem operational management unit a great problem, it is existing
Switch cabinet bus maintenance electrical verification earth handcart be two independent handcarts, exist no charged display device integrity detection function,
Earth point is not fixed, without weights such as the anti mis-closedown functions such as perfect electrical and mechanical and micro_computer five_proof, length of cumbersome and time
Big security risk is serious to violate《State Grid Corporation of China's electric power safety working regulation》、《State Grid Corporation of China prevents electric misoperation
Security Administration》With《18 great anti-accident measures of State Grid Corporation of China》Wait rules and regulations.Therefore, it is female to improve switchgear
The electrical verification of line work, the convenience of ground connection, safety and reliability are that raising Operation of Electric Systems management level is urgently to be resolved hurrily
Problem.
The content of the invention
Busbar work based on existing same voltage class how direct electrical verification, a series of problems of ground connection, this project carries
Gone out with " integration of electrical verification earth handcart, the inspection of electroscopic device integrity, the uniqueness of earth point, preventing mistakenly entering charged chamber,
Anti- live ground wiring closes grounding switch, anti-band ground wire or grounding switch combined floodgate power transmission, the control of valve opening ways, device limit
The integration of 12 functions of position, the control of earthing or grounding means mode of operation, remote signalling, earthing or grounding means position detection, the connection of electrical inside and outside "
Electrical verification earth handcart apparatus integration electricity-detection grounding device, for the ground connection of 6-35kV metal armouring cabinet busbar overhauls.
To realize technical purpose, the present invention uses following means：
(1), by the electroscopic device in same device and earthing or grounding means position reasonable distribution, integration is realized.(2) in the dress
Installation charged display device, inductive probe and buzzer are put, signal designation and auditory tone cues during in order to electrical verification, configuration
220V power outlets by connecting external power supply, realize the inspection to electroscopic device integrity.(3) micro_computer five_proof locking dress is configured
It puts, by logic association relation, so as to fulfill the stationarity in electrical verification ground connection place, according to the operating process of regulation, realizes handcart
The five-defence block function of the handle hole of disengaging, the handle hole of grounded part.(4) the electricity that installation control handcart passes in and out on the apparatus
Magnet, and the auxiliary contact for accessing busbar inlet wire and bus connection switch handcart realizes preventing mistakenly entering charged chamber to its control loop.⑸
The electromagnet of installation control handcart disengaging on the apparatus, and the auxiliary contact of grounding switch position is accessed to its control loop；
The electromagnet of installation control earthing or grounding means handle hole on the apparatus, and access electrification display and bus-bar potential transformer is secondary
The auxiliary contact of voltage relay is realized to its control loop and prevents charged hanging end line or conjunction grounding switch.(6) in mother and inlet wire
The electromagnet of installation control handcart disengaging on switching on/off handcart, and the auxiliary node for accessing grounding switch is realized to its control loop
Anti- switching on earth wire function.(7), by rationally setting push plate, the control of valve opening ways is realized.(8) by the cart device bottom
Drive lead screw, realization device /V are set on jiggering.(9) set by earthing or grounding means circuit, be grounded switch operation mode control
System.(10) device handcart and grounding switch position are uploaded by measure and control device, realize remote signaling function.(11) by electrical, mechanical setting,
The light, machinery, backstage for being grounded setting position check.(12), by setting secondary bolt on device, realize electrical inside and outside
Portion connects.It is achieved thereby that the lighting of integrated handcart, shortcut and reliability.There is light weight, at low cost, complete
Kind, safe operation and it is reliable the characteristics of.The shortening power failure operation time is reached, has improved equipment reliability of operation, and reduce people
Member's operation and the purpose of work safety risk.
Description of the drawings
Fig. 1 is electrical verification earth handcart front view；
Fig. 2 is electrical verification earth handcart side view；
Fig. 3 is main transformer by electric cabinet earthing locked loop and mother cabinet earthing locked loop；
Fig. 4 is electrical verification cabinet circuit diagram.
Wherein (1) disengaging vehicle hole (2) latching electromagnet (3) handcart body (4) earthing knife-switch manual operation hole (5) earthing spring
(6) secondary bolt locking push plate (8) earthing (9) sensor (10) contact arm (11) Mume flower contact (12) one of electrification display (7)
(18) observation window is locked in secondary valve push plate (13) earthing bar (14) auxiliary switch (15) secondary bolt (16) experiment power supply (17) electrical verification
(19) (21) five anti-lockset (22) earthing static contact (23) earthing moving contact of grounding switch position indicator (20) buzzer.
Specific embodiment
Apparatus of the present invention overall architecture is made of following 23 parts：(1) vehicle hole (2) latching electromagnet (3) handcart is passed in and out
Secondary bolt locking push plate (8) earthing of body (4) earthing knife-switch manual operation hole (5) earthing spring (6) electrification display (7)
(9) (12) valve push plate (13) earthing bar (14) auxiliary switches (15) of sensor (10) contact arm (11) Mume flower contact are secondary
Bolt (16) experiment power supply (17) electrical verification lock (18) observation window (19) grounding switch position indicator (20) buzzer (21) five is anti-
Lockset (22) earthing static contact (23) earthing moving contact.
The present invention combines the characteristics of metal armouring cabinet kind equipment, develops one and the matched hand carriage base of outlet switch,
Electrical verification, earthing or grounding means, five-defence block, warning device, push plate, secondary bolt etc. on pedestal are installed, realized (1) integrated：Same
Electroscopic device and earthing or grounding means position reasonable distribution in device ensure that its is simple in structure, operation is flexible, economical and practical, meets rule
Journey provides.(2) device integrity inspection：By sensor, charged display device, buzzer, the acousto-optic inspection of electroscopic device is realized
It looks into, audio alert and integrity inspection.(3) the uniqueness of earth point：Five prevention logic is realized between the device and busbar grounding interval
Blocking function, to ensure that it is pushed into the uniqueness at interval (apparent ground connection mark is set in the appropriate location at the interval).(4) prevent
Mistakenly entering charged chamber：It, can by the forced blocking between the device and mother, busbar service entrance switch handcart, grounding switch position
By the entrance of control device handcart.(5) anti-charged co-grounding switch：By the forced blocking between electroscopic device and earthing or grounding means,
Earthing or grounding means is reliably latched in the case where identification busbar or voltage transformer secondary side have anti-power transmission.(6) prevent that disconnecting link with ground closes
Lock：Forced blocking is realized between mother, busbar service entrance switch handcart and the device, which reliably controls mother at operating position
Connection, the entrance of busbar service entrance switch handcart.(7) valve opening ways：By rationally setting push plate, valve opening ways control is realized
System.(8) device /V：By setting drive lead screw on the cart device chassis vehicle, realization device /V prevents from being pushed into too deep
Damage dynamic/static contact.(9) grounding switch mode of operation：It is set by earthing or grounding means circuit, is grounded disconnecting link and manually or electrically grasps
Make.(10) remote signalling：Device handcart and grounding switch position are uploaded by measure and control device, realize remote signaling function.(11) grounding switch position
It checks：It is set by electrical, mechanical and observation window, is grounded the light, machinery, backstage position detection of setting position.(12) two
Secondary bolt：By setting secondary bolt on device, electrical inside and outside connection is realized.
The anti-switching on earth wire blocking device of one of which, the installation control hand on bus connection switch, busbar service entrance switch handcart
Vehicle passes in and out the electromagnet of handle hole, associated by electrical, electromagnetism, micro_computer five_proof locking with electrical verification earth handcart device, realizes
Forced blocking.By configuring micro_computer five_proof blocking device, by logic association, realize micro_computer five_proof program without this section of busbar
The locking of voltage mutual inducer trolley handle hole, the locking of busbar inlet wire (mother) switching on/off handcart handle hole can not pass through.Mother,
The electromagnet of installation control handcart disengaging on service entrance switch handcart, and the auxiliary contact of grounding switch is accessed to its control loop,
Realize anti-switching on earth wire function.
Another safety device of the present invention is for electric power handcart preventing mistakenly entering charged chamber blocking device, wherein disengaging vehicle hole 1 is used
In being pushed into and pulling out electrical verification earth handcart, the handle hole of disengaging handcart handle hole and grounded part is controlled by latching electromagnet 2
Electric blocking, handcart body 3 is for being made each component.Wherein secondary bolt 15 is placed in secondary bolt locking push plate 7
On.
During implementation, micro_computer five_proof blocking device is configured, by logic association relation, sets the five of the handle hole of handcart disengaging
Anti- blocking function.The latching electromagnet 2 passed in and out by installing control handcart on the apparatus, and access busbar inlet wire and mother is opened
The auxiliary contact of handcart is closed to its control loop, by with the matched hand carriage base of outlet switch, control is installed on pedestal
Pass in and out electromagnet, five-defence block, secondary bolt etc. of vehicle, realize the device and mother, busbar service entrance switch handcart position it is strong
System locking, all intervals of busbar it is any in operating position when, the five of device disengaging vehicle handle hole anti-lock can not pass through.
With reference to Fig. 1, all parts are act as：
(1) vehicle hole is passed in and out：Push-in and pull-out electrical verification earth handcart.
(2) latching electromagnet：The electric blocking of the handle hole of control disengaging handcart handle hole and grounded part.
(3) handcart body：The supporting mechanism of each component.
(4) earthing knife-switch manual operation hole：Manual division grounding switch.
(5) earthing spring：The division of control ground connection moving contact.
(6) electrification display：Display maintenance busbar three-phase has no-voltage.
(7) secondary bolt locking:Fixed secondary bolt.
(8) earthing：Overhaul busbar grounding.
(9) sensor：Sensing busbar three-phase has no-voltage, and induced voltage is provided for charged display.
(10) contact arm：The fixed moving contact of connection and sensor
(11) Mume flower contact：Device contact with cabinet static contact.
(12) valve push plates：Control the opening ways of contact isolation baffle plate above and below cabinet.
(13) earthing bar：Ensure the reliable contacts of maintenance busbar and main grounding grid.
(14) auxiliary switch：Setting position contact (S8, S9 position)
(15) secondary bolt：Connect secondary circuit.
(16) experiment power supply：For electrification display integrity inspection.
(17) electrical verification is locked：Prevent splice grafting earthing knife-switch by mistake.
(18) observation window：Check grounding switch divide-shut brake and moving contact contact situation.
(19) grounding switch position indicator：Observe the division gate position of grounding switch.
(20) buzzer：When charged display device has sensed that electricity carries out audio alert, prompting operating personnel.
(21) five anti-locksets：Prevent mistakenly entering charged chamber, it is ensured that the uniqueness of earth point；For earthing or grounding means and handcart
Anti-misoperation.
(22) earthing static contact：With the reliable contacts of earthing ground connection moving contact.
(23) earthing moving contact：With the reliable contacts of earthing grounding static contact.
Symbol annotates in secondary circuit in Fig. 3：
DST1、DST2：Electromagnet
H：Electrification display
FM：Buzzer
S9：Operating position auxiliary switch
KA、KA2：Intermediate relay (is installed on integrated electricity-detection grounding device)
DXN：Sensor
CZ：Socket
ZJ、ZJ2：Intermediate relay (is installed on PT cabinets low-pressure chamber)
DY1、DY2：Voltage relay (is installed on PT cabinets low-pressure chamber)
D1：Headlamp (is installed on integrated electricity-detection grounding device)
R1：Resistance replaces (being installed on integrated electricity-detection grounding device) for alternating current-direct current signal lamp
Explanation：
1st, PT cabinets increase by 2, voltage relay (DY1, DY2), and voltage relay expands contact relay (ZJ2) 1；
2nd, PT cabinets increase integrated electrical verification earth handcart device operating position relay ZJ 1；
3rd, integrated electrical verification earth handcart complexes operating position increases locking contact to incoming line cabinet and mother cabinet respectively,
Wherein I section of bus-bar potential transformer cabinet integration electrical verification earth handcart device guides No. 1 inlet wire and mother into, and II section of busbar voltage is mutual
Sensor cabinet integration electricity-detection grounding device guides No. 2 incoming line cabinets and mother cabinet into.
4th, integrated electricity-detection grounding device chassis vehicle locked loop is quoted from inlet wire and bus connection switch handcart operating position contact,
For wherein I section of bus-bar potential transformer cabinet integration electrical verification earth handcart device quoted from No. 1 inlet wire and mother, II section of busbar voltage is mutual
Sensor cabinet integration electricity-detection grounding device is quoted from No. 2 incoming line cabinets and mother cabinet.
It can be seen that from the specific embodiment for inventing the device：The device operates flexibly, conveniently, perfect in shape and function, more
Meet " electric power safety working regulation " and " electric power operation regulation ", the regulation of " equipment O＆M specification ", facilitate 6-35kV busbar works
The electrical verification ground connection of work, solves live problem, it is ensured that operation, work, equipment and personnel safety substantially increase economic and peace
Full benefit.
Before the utility model device is not used, traditional electricity-testing handcart, earth handcart working method are after busbar has a power failure, and are incited somebody to action
After PT switching on/off handcarts are drawn out to maintenance position, electricity-testing handcart is pushed into the PT intervals, after identifying the true no-voltage of three-phase, pulls 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) electrical verification and ground connection hand
Vehicle is each independent, troublesome in poeration, be stored inconveniently.(2) the electric loop whether intact without electrification display is checked.(3) without microcomputer
Five-defence block function causes electrical verification ground connection place that cannot fix, pass in and out the handle hole of handcart handle hole and grounded part without locking,
It does not meet《Electric power safety working regulation》Regulation.(4) without five-defence block device, mistakenly entering charged chamber, band cable address easily occurs
Line；When recovering bussed supply, switching on earth wire easily occurs.Without check grounded part contact whether good watch window and electricity
Air circuit.
Using the utility model device, by the further investigation to electricity-testing handcart and earth handcart operation principle, by electrical verification
It is integrated with ground connection, electrical verification handle, but also installation ground connection handle be both not only installed on same handcart, and to electrical verification and the locking work(of ground connection
Can carry out it is perfect, this project emphatically solves the problems, such as below 12：The integration of electrical verification earth handcart, the inspection of electroscopic device integrity
It looks into, the uniqueness of earth point, preventing mistakenly entering charged chamber, anti-live ground wiring or close grounding switch, anti-band ground wire or grounding switch
Combined floodgate power transmission, the control of valve opening ways, device /V, the control of earthing or grounding means mode of operation, remote signalling, the inspection of earthing or grounding means position
It looks into, the connection of electrical inside and outside.
Problem target is actually proposed according to the contents of a project and combination：
1. being laid out by electrical verification and the rationalization of earthing or grounding means, ensure that its is simple in structure, operation is flexible, economical and practical, symbol
Close regulation regulation.
2. by installing buzzer, electrification display, the acousto-optic inspection of external 20V power outlets realization electroscopic device, language
Sound warning function and integrity audit function.
3. by electrical, electromagnetism and micro_computer five_proof blocking function, it is grounded uniqueness a little, effectively prevents mistakenly entering into charged
The generation be spaced, prevent live ground wiring, prevented switching on earth wire accident.
4. by rationally setting push plate, the control of valve opening ways is realized；By being set on the cart device chassis vehicle
Drive lead screw, realization device /V；It is set by earthing or grounding means circuit, is grounded switch operation mode and controls；Pass through observing and controlling
Device uploads device handcart and grounding switch position, realizes remote signaling function；By electrical, mechanical setting, device position is grounded
The light put, machinery, backstage check, ensure that safe operation.
5 on device by setting secondary bolt, realizes electrical inside and outside connection, ensure that inside and outside circuit it is electrical can
By connection.
6. the operating time is less than 10min.
The invention of the device, it is ensured that operation, work, equipment and personnel safety have high economy and safety benefit.
This project aim to solve the problem that switch cabinet bus turn maintenance when can safe electrical verification, ground connection problem, substation can be improved
(switching station) operation maintenance personnel work efficiency shortens the power failure operation time, effectively prevents mistakenly entering charged chamber and live ground wiring thing
Therefore equipment reliability of operation is improved, especially substantially reduce the safe operation risk of operation maintenance personnel.It is connect compared with previous independent
Ground handcart, electricity-testing handcart have the function of the characteristics of simple in structure, at low cost, more perfect, operation is safer, reliable.
Claims (3)
1. a kind of electrical verification earth handcart device, which is characterized in that including：Pass in and out vehicle hole, latching electromagnet, vehicle body, earthing knife-switch hand
Dynamic handle hole, earthing spring, electrification display, secondary bolt locking push plate, earthing, sensor, contact arm, Mume flower contact,
Valve push plate, earthing bar, auxiliary switch, secondary bolt, experiment power supply, electrical verification lock, observation window, grounding switch position instruction
Lamp, buzzer, five anti-locksets, earthing static contact and earthing moving contact；
The disengaging vehicle hole for being pushed into and pulling out electrical verification earth handcart, by latching electromagnet control disengaging handcart handle hole and
The electric blocking of the handle hole of grounded part, handcart body are used to that each component to be made；Earthing knife-switch manual operation hole is manual
Division grounding switch can control the division of ground connection moving contact by earthing spring；Maintenance can be shown on electrification display
Busbar three-phase has no-voltage；It can overhaul whether busbar is grounded by earthing；Sensor can sense busbar three-phase whether there is electricity
Pressure, induced voltage is provided for charged display, connects fixed moving contact and sensor by contact arm, Mume flower contact is used for quiet with cabinet
The contact of contact；Valve push plate is used to control the unlatching of contact isolation baffle plate above and below cabinet；Earthing bar ensures maintenance busbar
With the reliable contacts of main grounding grid；Secondary bolt for connecting secondary circuit, for electrification display integrity examine by experiment power supply
It looks into, electrical verification lock can prevent division earthing by mistake；It can check that grounding switch divide-shut brake and moving contact contact feelings by observation window
Condition, and pass through grounding switch position indicator and show Grounding；When charged display device has sensed electricity, pass through buzzer
Audio alert is carried out, reminds operating personnel；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；The reliable contacts of earthing static contact and earthing ground connection moving contact, earthing move
The reliable contacts of contact and earthing grounding static contact.
2. a kind of electrical verification earth handcart device according to claim 1, which is characterized in that further include anti-switching on earth wire and close
Locking device, the electromagnet of installation control handcart disengaging handle hole, is grounded with electrical verification on bus connection switch, busbar service entrance switch handcart
Cart device is latched associated, realization forced blocking by electrical, electromagnetism, micro_computer five_proof.
3. a kind of electrical verification earth handcart device according to claim 1, which is characterized in that further include and prevent for electric power handcart
Mistakenly entering charged chamber blocking device, described device include disengaging vehicle hole, handcart body, and secondary bolt is latched push plate, further includes electricity
Magnet, five anti-locksets and secondary bolt, wherein electromagnet are placed in the middle part and bottom of handcart body, are controlled by five anti-locksets
System；Secondary bolt is placed on secondary bolt locking push plate, and five anti-lockset of cooperation carries out forced blocking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720292777.9U CN207459538U (en) | 2017-03-24 | 2017-03-24 | A kind of electrical verification earth handcart device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720292777.9U CN207459538U (en) | 2017-03-24 | 2017-03-24 | A kind of electrical verification earth handcart device |
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| Publication Number | Publication Date |
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| CN207459538U true CN207459538U (en) | 2018-06-05 |
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ID=62246737
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| CN201720292777.9U Active CN207459538U (en) | 2017-03-24 | 2017-03-24 | A kind of electrical verification earth handcart device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107732744A (en) * | 2017-03-24 | 2018-02-23 | 国网甘肃省电力公司兰州供电公司 | A kind of electrical verification earth handcart device |
-
2017
- 2017-03-24 CN CN201720292777.9U patent/CN207459538U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107732744A (en) * | 2017-03-24 | 2018-02-23 | 国网甘肃省电力公司兰州供电公司 | A kind of electrical verification earth handcart device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210519 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 |
|
| TR01 | Transfer of patent right |