CN104979770A - Electricity testing grounding device preventing ground wire connection in electrified condition and preventing switch closing in the presence of ground wire - Google Patents
Electricity testing grounding device preventing ground wire connection in electrified condition and preventing switch closing in the presence of ground wire Download PDFInfo
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- CN104979770A CN104979770A CN201510352261.4A CN201510352261A CN104979770A CN 104979770 A CN104979770 A CN 104979770A CN 201510352261 A CN201510352261 A CN 201510352261A CN 104979770 A CN104979770 A CN 104979770A
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Abstract
The invention discloses an electricity testing grounding device preventing ground wire connection in an electrified condition and preventing switch closing in the presence of a ground wire. A panel is arranged on a vehicle body. A test power supply, an electrified display apparatus, an electricity testing lock, an observation window, a grounding switch manual operating hole, a buzzer, a vehicle in/out hole, a secondary bolt and five-prevention locks are disposed on the panel. The electrified display apparatus and the buzzer are both electrically connected with the test power supply. The vehicle in/out hole and the grounding switch manual operating hole are each provided with one five-prevention lock. The grounding switch manual operating hole is connected to a manual operating shaft. A push plate is disposed at the bottom of the vehicle body. A grounding switch is disposed on the vehicle body. A sensor is arranged on the grounding switch, and is connected to a moving contact through a contact arm. The grounding switch is provided with a grounding moving contact, and the grounding moving contact is provided with an opening/closing spring. A grounding static contact is arranged to face the grounding moving contact. The manual operating shaft is connected to the grounding switch. A grounding bar is disposed at the bottom of the vehicle body. The advantages of the device are that safety of operation and safety of maintenance workers are effectively guaranteed.
Description
Technical field
The present invention relates to power transmission and transforming equipment running status maintenance field, particularly, relate to a kind of electricity-detection grounding device with anti-live ground wiring and switching on earth wire.
Background technology
At present, 6-35kV metal armouring cabinet busbar overhaul electricity-detection grounding device, be separately independently, the easy device of function singleness, there is following defect and problem: (1) without the electric blocking of anti-switching on earth wire.(2) without the electric blocking of anti-live ground wiring.(3), without micro_computer five_proof blocking function, cause electrical verification ground connection place can not to fix with the handle hole of grounded part (and button) without locking, do not meet the regulation of " electric power safety working regulation ".(4) without the function checking charged display device integrity.(5) without inspection grounded part contact whether good watch window and electric loop.(6), without the upper and lower isolation baffle plate of opening switch cabinet selected, lower fixed contact has the danger of anti-power transmission.Owing to there is above-mentioned defect, cause prior art effectively can not ensure operation and maintainer's safety.
Summary of the invention
The object of the invention is to, for the problems referred to above, propose a kind of electricity-detection grounding device having anti-live ground wiring and switching on earth wire, to realize the advantage effectively ensureing operation and maintainer's safety.
For achieving the above object, the technical solution used in the present invention is:
There is an electricity-detection grounding device for anti-live ground wiring and switching on earth wire, comprise experiment power supply, charged display device, electrical verification is locked, observation window, earthing manual operation hole, latching electromagnet, buzzer, turnover car hole, secondary latch, five-defence block, moving contact, contact arm, transducer, earthing, grounding static contact, ground connection moving contact, manual operation axle, divide-shut brake spring, push pedal, earthing bar, panel and car body, described panel is arranged on car body, described experiment power supply, charged display device, electrical verification is locked, observation window, earthing manual operation hole, buzzer, turnover car hole, secondary latch and five-defence block are arranged on panel, latching electromagnet is arranged on the junction of panel and car body, and charged display device and buzzer are all electrically connected with experiment power supply, five-defence block is all installed in described turnover car hole and earthing manual operation hole, and described earthing manual operation hole is connected with manual operation axle, described push pedal is arranged on the bottom of car body, described earthing is arranged on car body, earthing arranges transducer, transducer is connected with moving contact by contact arm, earthing is arranged ground connection moving contact, ground connection moving contact is arranged divide-shut brake spring, described grounding static contact is corresponding with ground connection moving contact to be arranged, and described manual operation axle is connected with earthing, and earthing bar is arranged on the bottom of car body.
Further, described experiment power supply: access 220V AC power, checks integrity and the availability of transducer and charged display device by buzzer and light display apparatus;
Described charged display device: display maintenance bus three-phase has no-voltage;
Described electrical verification lock: carry out electrical verification prompting before ground connection;
Described observation window: check that earthing divide-shut brake contacts situation with moving contact;
Described earthing manual operation hole: manual deciliter earthing;
Described latching electromagnet: when electric power incoming line switch is in "on" position, locking earthing, namely prevents charged conjunction earthing;
Described buzzer: when charged display device has sensed electricity, carries out audio alert, reminds operating personnel;
Described turnover car hole: push and pull out electrical verification earth handcart;
Described secondary latch: be communicated with secondary circuit;
Described five-defence block: prevent mistakenly entering charged chamber, guarantees the uniqueness of earth point, for the anti-misoperation of electricity-detection grounding device and handcart;
Described moving contact: the contact point of electricity-detection grounding device and cabinet fixed contact;
Described contact arm: connect moving contact and transducer;
Described transducer: induction bus three-phase has no-voltage, for charged display provides induced voltage;
Described earthing: maintenance busbar grounding;
Described grounding static contact: when earthing closes a floodgate, with the ground connection moving contact reliable contacts of earthing;
Described ground connection moving contact: when earthing closes a floodgate, with the grounding static contact reliable contacts of earthing;
Described manual operation axle: the crank of manual operation electricity-detection grounding device;
Described divide-shut brake spring: control ground connection moving contact deciliter;
Described push pedal: the opening ways controlling cabinet upper and lower contact isolation baffle plate;
Described earthing bar: the reliable contacts ensureing maintenance bus and main grounding grid.
Technical solution of the present invention discloses the repair method that a kind of utilization has the electricity-detection grounding device of anti-live ground wiring and switching on earth wire accordingly simultaneously, comprises the following steps:
(1), before using, by 220V AC power access experiment power supply, checked integrity and the availability of transducer and charged display device by buzzer and light display;
(2), after confirming the availability of electricity-detection grounding device, examination operation on five anti-machines, sends unlocking information to computer key;
(3) open door of switch cabinet, from turnover car hole, this electricity-detection grounding device is pushed into test position with crank, inserts secondary latch, check that electric secondary circuit is intact;
(4) judge service entrance switch all at open position by latching electromagnet, open latching electromagnet and this electricity-detection grounding device is pushed into run location, reliably open with the upper isolation baffle plate of push pedal by switch cubicle simultaneously, lower isolation baffle plate is reliably closed, the moving contact of this electricity-detection grounding device and cabinet fixed contact reliable contacts;
(5) identify maintenance bus three-phase without electricity by transducer and charged display device;
(6) opened the locking in earthing manual operation hole by electrical verification lock and five-defence block, the manual or electronic earthing that closes, make ground connection moving contact and the grounding static contact reliable contacts of earthing, make maintenance bus reliable ground by earthing bar;
(7) check that earthing is when closing position by observation window, the instruction of background computer position, whether the moving contact contact of this electricity-detection grounding device is good.
Technical scheme of the present invention has following beneficial effect:
Technical scheme of the present invention, (1) the position contact of this device is sealed in the closing circuit of bus mains switch, when distinguishing busbar grounding, by reliable for the closing circuit of bus mains switch locking, ensure that it cannot close a floodgate, from electrically achieving anti-switching on earth wire.(2) the contact of charged display device being sealed in electromagnetic lock, when identifying bus and being charged, by reliable for the grounded circuit of electricity-detection grounding device locking, ensureing that it cannot close a floodgate, from electrically achieving anti-live ground wiring.(3) configure micro_computer five_proof locking device, by logic association relation, thus realize the stationarity in electrical verification ground connection place, according to the operating process of regulation, be grounded the handle hole of part or the five-defence block function of button.(4) install an integrated power supply device additional at the inductive probe of charged display device, regularly pass into the voltage of alternating current 220V, check the integrity of charged display device and inductive probe, thus ensure that electricity-detection grounding device remains intact state always.(5) on the panel of this device, open an observation window, the auxiliary contact of grounded part is opened into measure and control device, the divide-shut brake position of grounded part is uploaded to background computer, thus be grounded the whether good audit function of part contact.(6) modifier is to the opening ways of switch cabinet static contact isolation baffle plate, and the isolation baffle plate of control being isolated fixed contact is reliably opened, and the isolation baffle plate of lower isolation fixed contact is reliably closed, and effectively prevents the anti-power transmission of circuit.Thus improve the electrical verification of switch cabinet bus, the convenience of ground connection, safety and reliability, reach the object effectively ensureing operation and maintainer's safety.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 is the structural representation with the electricity-detection grounding device of anti-live ground wiring and switching on earth wire described in the embodiment of the present invention;
The structural representation with panel in the electricity-detection grounding device of anti-live ground wiring and switching on earth wire described in the embodiment of the present invention of Fig. 2 position.
By reference to the accompanying drawings, in the embodiment of the present invention, Reference numeral is as follows:
1-experiment power supply; 2-charged display device; 3-electrical verification is locked; 4-observation window; 5-earthing manual operation hole; 6-latching electromagnet; 7-buzzer; 8-passes in and out car hole; 9-bis-latches; 10-five-defence block; 11-moving contact; 12-contact arm; 13-transducer; 14-earthing; 15-grounding static contact; 16-ground connection moving contact; 17-manual operation axle; 18-divide-shut brake spring; 19-push pedal; 20-earthing bar; 21-car body; 22-panel.
Embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein is only for instruction and explanation of the present invention, is not intended to limit the present invention.
As depicted in figs. 1 and 2, a kind of electricity-detection grounding device with anti-live ground wiring and switching on earth wire, comprises experiment power supply 1, charged display device 2, electrical verification lock 3, observation window 4, earthing manual operation hole 5, latching electromagnet 6, buzzer 7, turnover car hole 8, secondary latch 9, five-defence block 10, moving contact 11, contact arm 12, transducer 13, earthing 14, grounding static contact 15, ground connection moving contact 16, manual operation axle 17, divide-shut brake spring 18, push pedal 19, earthing bar 20, panel 22 and car body 21, panel 22 is arranged on car body 21, experiment power supply 1, charged display device 2, electrical verification lock 3, observation window 4, earthing manual operation hole 5, buzzer 7, turnover car hole 8, secondary latch 9 and five-defence block 10 are arranged on panel 22, latching electromagnet 6 is arranged on the junction of panel 22 and car body 21, and charged display device 2 and buzzer 7 are all electrically connected with experiment power supply 1, five-defence block 10 is all installed in turnover car hole 8 and earthing manual operation hole 5, and earthing manual operation hole 5 is connected with manual operation axle 17, push pedal 19 is arranged on the bottom of car body 21, earthing 14 is arranged on car body, earthing 11 is arranged transducer 13, transducer 13 is connected with moving contact 11 by contact arm 12, earthing 14 is arranged ground connection moving contact 16, ground connection moving contact 16 is arranged divide-shut brake spring 18, grounding static contact 15 is corresponding with ground connection moving contact 16 to be arranged, and manual operation axle 17 is connected with earthing 14, and earthing bar 20 is arranged on the bottom of car body.
Experiment power supply 1: access 220V AC power, checks integrity and the availability of transducer and charged display device by buzzer and light display apparatus;
Charged display device 2: display maintenance bus three-phase has no-voltage;
Electrical verification lock 3: carry out electrical verification prompting before ground connection;
Observation window 4: check that earthing divide-shut brake contacts situation with moving contact;
Earthing manual operation hole 5: manual deciliter earthing;
Latching electromagnet 6: when electric power incoming line switch is in "on" position, locking earthing, namely prevents charged conjunction earthing;
Buzzer 7: when charged display device has sensed electricity, carries out audio alert, reminds operating personnel;
Turnover car hole 8: push and pull out electrical verification earth handcart;
Secondary latch 9: be communicated with secondary circuit;
Five-defence block 10: prevent mistakenly entering charged chamber, guarantees the uniqueness of earth point, for the anti-misoperation of electricity-detection grounding device and handcart;
Moving contact 11: the contact point of electricity-detection grounding device and cabinet fixed contact;
Contact arm 12: connect moving contact and transducer;
Transducer 13: induction bus three-phase has no-voltage, for charged display provides induced voltage;
Earthing 14: maintenance busbar grounding;
Grounding static contact 15: when earthing closes a floodgate, with the ground connection moving contact reliable contacts of earthing;
Ground connection moving contact 16: when earthing closes a floodgate, with the grounding static contact reliable contacts of earthing;
Manual operation axle 17: the crank of manual operation electricity-detection grounding device;
Divide-shut brake spring 18: control ground connection moving contact deciliter;
Push pedal 19: the opening ways controlling cabinet upper and lower contact isolation baffle plate;
Earthing bar 20: the reliable contacts ensureing maintenance bus and main grounding grid.
Technical solution of the present invention discloses the repair method that a kind of utilization has the electricity-detection grounding device of anti-live ground wiring and switching on earth wire accordingly simultaneously, comprises the following steps:
(1) before using, by 220V AC power access experiment power supply 1, integrity and the availability of transducer 13 and charged display device 2 is checked by buzzer 7 and light display;
(2), after confirming the availability of electricity-detection grounding device, examination operation on five anti-machines, sends unlocking information to computer key;
(3) open door of switch cabinet, from turnover car hole 8, this electricity-detection grounding device is pushed into test position with crank, inserts secondary latch 9, check that electric secondary circuit is intact;
(4) judge service entrance switch all at open position by latching electromagnet 6, open latching electromagnet 6 and this electricity-detection grounding device is pushed into run location, reliably open with the upper isolation baffle plate of push pedal 19 by switch cubicle simultaneously, lower isolation baffle plate is reliably closed, moving contact 11 and the cabinet fixed contact reliable contacts of this electricity-detection grounding device;
(5) identify maintenance bus three-phase without electricity by transducer 13 and charged display device 2;
(6) opened the locking in earthing manual operation hole 5 by electrical verification lock 3 and five-defence block 10, the manual or electronic earthing 14 that closes, make ground connection moving contact 16 and grounding static contact 15 reliable contacts of earthing, make maintenance bus reliable ground by earthing bar 20;
(7) check that earthing is when closing position by observation window 4, the instruction of background computer position, whether the moving contact contact of this electricity-detection grounding device is good.
In sum, the present invention has following characteristics:
(1) electroscopic device and earthing device position reasonable distribution in same device, ensure that its structure is simple, flexible operation, economical and practical, meet regulations stipulate.(2) realize acousto-optic inspection and the voice alarm function (checking the integrity of electroscopic device before use by 220V AC power) of electroscopic device.(3) realize forced blocking between electroscopic device and earthing device, the reliable locking earthing device when identification has electric.(4) realize five prevention logic blocking function between this device and busbar grounding interval, to guarantee its uniqueness pushing interval (arranging obvious ground connection mark in the appropriate location at this interval).(5) realize electrical interlock between earthing device and bus inlet wire (mother) switch, power transmission (installing latching electromagnet additional) of closing a floodgate under preventing charged conjunction ground cutter and busbar grounding situation.(6) the earthing position of earthing device uploads to background computer.(7) the earthing operation of earthing device both can electric operating, again can manual operation (operating electrical machines use direct current machine).(8) the docking of implement device moving contact and metal armouring cabinet static contact, spacing, rationally arrange push pedal, the isolation baffle plate of guarantee being isolated fixed contact is reliably opened, and the isolation baffle plate of lower isolation fixed contact is reliably closed.(9) watch window is set on the panel of this device, testing fixture contact and grounding switch divide-shut brake position.
Last it is noted that the foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, although with reference to previous embodiment to invention has been detailed description, for a person skilled in the art, it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (3)
1. there is an electricity-detection grounding device for anti-live ground wiring and switching on earth wire, it is characterized in that, comprise experiment power supply, charged display device, electrical verification is locked, observation window, earthing manual operation hole, latching electromagnet, buzzer, turnover car hole, secondary latch, five-defence block, moving contact, contact arm, transducer, earthing, grounding static contact, ground connection moving contact, manual operation axle, divide-shut brake spring, push pedal, earthing bar, panel and car body, described panel is arranged on car body, described experiment power supply, charged display device, electrical verification is locked, observation window, earthing manual operation hole, buzzer, turnover car hole, secondary latch and five-defence block are arranged on panel, described latching electromagnet is arranged on the junction of panel and car body, and charged display device and buzzer are all electrically connected with experiment power supply, five-defence block is all installed in described turnover car hole and earthing manual operation hole, and described earthing manual operation hole is connected with manual operation axle, described push pedal is arranged on the bottom of car body, described earthing is arranged on car body, earthing arranges transducer, transducer is connected with moving contact by contact arm, earthing is arranged ground connection moving contact, ground connection moving contact is arranged divide-shut brake spring, described grounding static contact is corresponding with ground connection moving contact to be arranged, and described manual operation axle is connected with earthing, and earthing bar is arranged on the bottom of car body.
2. the electricity-detection grounding device with anti-live ground wiring and switching on earth wire according to claim 1, is characterized in that,
Described experiment power supply: access 220V AC power, checks integrity and the availability of transducer and charged display device by buzzer and light display apparatus;
Described charged display device: display maintenance bus three-phase has no-voltage;
Described electrical verification lock: carry out electrical verification prompting before ground connection;
Described observation window: check that earthing divide-shut brake contacts situation with moving contact;
Described earthing manual operation hole: manual deciliter earthing;
Described latching electromagnet: when electric power incoming line switch is in "on" position, locking earthing, namely prevents charged conjunction earthing;
Described buzzer: when charged display device has sensed electricity, carries out audio alert, reminds operating personnel;
Described turnover car hole: push and pull out electrical verification earth handcart;
Described secondary latch: be communicated with secondary circuit;
Described five-defence block: prevent mistakenly entering charged chamber, guarantees the uniqueness of earth point, for the anti-misoperation of electricity-detection grounding device and handcart;
Described moving contact: the contact point of electricity-detection grounding device and cabinet fixed contact;
Described contact arm: connect moving contact and transducer;
Described transducer: induction bus three-phase has no-voltage, for charged display provides induced voltage;
Described earthing: maintenance busbar grounding;
Described grounding static contact: when earthing closes a floodgate, with the ground connection moving contact reliable contacts of earthing;
Described ground connection moving contact: when earthing closes a floodgate, with the grounding static contact reliable contacts of earthing;
Described manual operation axle: the crank of manual operation electricity-detection grounding device;
Described divide-shut brake spring: control ground connection moving contact deciliter;
Described push pedal: the opening ways controlling cabinet upper and lower contact isolation baffle plate;
Described earthing bar: the reliable contacts ensureing maintenance bus and main grounding grid.
3. utilize the repair method with the electricity-detection grounding device of anti-live ground wiring and switching on earth wire described in claim 1 or 2, it is characterized in that, comprise the following steps:
(1), before using, by 220V AC power access experiment power supply, checked integrity and the availability of transducer and charged display device by buzzer and light display;
(2), after confirming the availability of electricity-detection grounding device, examination operation on five anti-machines, sends unlocking information to computer key;
(3) open door of switch cabinet, from turnover car hole, this electricity-detection grounding device is pushed into test position with crank, inserts secondary latch, check that electric secondary circuit is intact;
(4) judge service entrance switch all at open position by latching electromagnet, open latching electromagnet and this electricity-detection grounding device is pushed into run location, reliably open with the upper isolation baffle plate of push pedal by switch cubicle simultaneously, lower isolation baffle plate is reliably closed, the moving contact of this electricity-detection grounding device and cabinet fixed contact reliable contacts;
(5) identify maintenance bus three-phase without electricity by transducer and charged display device;
(6) opened the locking in earthing manual operation hole by electrical verification lock and five-defence block, the manual or electronic earthing that closes, make ground connection moving contact and the grounding static contact reliable contacts of earthing, make maintenance bus reliable ground by earthing bar;
(7) check that earthing is when closing position by observation window, the instruction of background computer position, whether the moving contact contact of this electricity-detection grounding device is good.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510352261.4A CN104979770A (en) | 2015-06-24 | 2015-06-24 | Electricity testing grounding device preventing ground wire connection in electrified condition and preventing switch closing in the presence of ground wire |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510352261.4A CN104979770A (en) | 2015-06-24 | 2015-06-24 | Electricity testing grounding device preventing ground wire connection in electrified condition and preventing switch closing in the presence of ground wire |
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| CN107153134A (en) * | 2017-06-15 | 2017-09-12 | 国网山东省电力公司枣庄供电公司 | Electrical verification earth handcart and method of work |
| 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 |
| CN107732743A (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 6 35kV Standardization instrument switch cabinet systems |
| CN108183414A (en) * | 2017-11-30 | 2018-06-19 | 国家电网公司 | The integrated Special grounding trolley of armouring central high-voltage switch cabinet electrical verification ground connection and its application method |
| 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 |
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| CN112730954A (en) * | 2020-12-22 | 2021-04-30 | 西安西拓电气股份有限公司 | Electricity testing grounding method and system of switch cabinet and electricity testing grounding vehicle |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| CN107732743A (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 6 35kV Standardization instrument switch cabinet systems |
| CN107732743B (en) * | 2017-03-24 | 2023-08-04 | 国网甘肃省电力公司兰州供电公司 | 6-35kV equipment standardized switch cabinet system |
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| 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 |
| CN112038962A (en) * | 2020-09-09 | 2020-12-04 | 国网山东省电力公司沂南县供电公司 | Handcart grounded under handcart switch cabinet and method |
| CN112730954A (en) * | 2020-12-22 | 2021-04-30 | 西安西拓电气股份有限公司 | Electricity testing grounding method and system of switch cabinet and electricity testing grounding vehicle |
| CN112730954B (en) * | 2020-12-22 | 2024-03-12 | 西安西拓电气股份有限公司 | Electricity testing grounding method and system of switch cabinet and electricity testing grounding vehicle |
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Application publication date: 20151014 |