CN204243592U - One can moveable high-voltage switchgear earth handcart - Google Patents
One can moveable high-voltage switchgear earth handcart Download PDFInfo
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- CN204243592U CN204243592U CN201420727063.2U CN201420727063U CN204243592U CN 204243592 U CN204243592 U CN 204243592U CN 201420727063 U CN201420727063 U CN 201420727063U CN 204243592 U CN204243592 U CN 204243592U
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- latching electromagnet
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Abstract
The utility model discloses one can moveable high-voltage switchgear earth handcart, comprise handcart body, this handcart body is provided with earthed switch, slide plate, electrification display and the first latching electromagnet, and described slide plate connects earthed switch and can order about this ground switch earthing; Described electrification display and the first latching electromagnet are electrically connected in series, and described first latching electromagnet can allow or stop described slide plate to order about this ground switch earthing; Its tool has the following advantages: operation is simpler, workload is less, effectively can protect the safety of attendant and electric equipment, avoids artificial operate miss, anti-error performance better, achieves rapid grounding, avoids producing interior unit cell model.
Description
Technical field
The utility model relates to the maintenance of switch cubicle, and particularly relating to one can moveable high-voltage switchgear earth handcart.
Background technology
Power industry is a basic activity of national economy, ensures that the security of operation of power transmission and distribution is most important, and the annual overhaul of power equipment is the effective measures ensureing safety in production.When annual test, the operational environment giving maintainer's safety is very important, generally can the annual test of withdrawing switch apparatus time, various handcart retreats to outside cabinet by capital, carry out the detection of various electric parameter, it is safe, because departed from switchgear.But for the detection of switch cubicle, then there is certain risk, need a kind of handcart making system main bus bar ground connection for this reason, to make main bus bar ground connection.At present conventional method be use two handcart to complete this work, a is electricity-testing handcart, and a is earth handcart.Method of operation is first by electricity-testing handcart push-on switch cabinet, judges that whether main bus bar is charged by electrification display.If not charged, then electricity detection vehicle is exited, then grounding car is advanced in cabinet, complete the operation of main bus bar ground connection.This kind of operation is too loaded down with trivial details, has complaint in client more.In addition, also likely occur pushing away wrong handcart in existing ground connection method of operation, and the risk caused the accident.Moreover handcart can not realize rapid grounding.
Utility model content
The utility model provides one can moveable high-voltage switchgear earth handcart, which overcomes the shortcoming that the ground connection operation of the prior art breaker in middle cabinet maintenance described in background technology is too loaded down with trivial details.
The technical scheme adopted that the utility model solves its technical problem is:
One can moveable high-voltage switchgear earth handcart, and comprise handcart body, this handcart body is provided with earthed switch, slide plate, electrification display and the first latching electromagnet, and described slide plate connects earthed switch and can order about this ground switch earthing; Described electrification display and the first latching electromagnet are electrically connected in series, and described first latching electromagnet can allow or stop described slide plate to order about this ground switch earthing; When handcart is pushed into service position, whether chargedly main bus bar is detected by electrification display, if not charged, can order about described slide plate and carry out ground connection operation to this earthed switch, if charged, the first latching electromagnet stops described slide plate to order about this earthed switch to carry out ground connection operation.
Among one embodiment: this handcart body is also provided with the first sensitive switch, the second latching electromagnet, described first sensitive switch and the second latching electromagnet are electrically connected in series, described first sensitive switch be positioned at described slide plate below and can it be switched on or switched off by the Position Control of slide plate, described second latching electromagnet can allow or stop this handcart body to be advanced to service position from test position; When handcart is positioned at test position, if this earthed switch is in ground state, then described slide plate disconnects described first sensitive switch, and described second latching electromagnet stops this handcart to be advanced to service position from test position.
Among one embodiment: this switch cubicle is provided with the second sensitive switch, this handcart body is also provided with the switch boards for being switched on or switched off the second sensitive switch; During handcart promotion position, described switch boards cuts off described second sensitive switch, and main bus bar is no longer charged.
Among one embodiment: this earthed switch is high speed grounding switch.
Among one embodiment: this handcart body is also provided with and can be plugged in the secondary plug that switch cubicle carries out power taking, described secondary plug described first sensitive switch of electrical connection and the second latching electromagnet.
Among one embodiment: described second sensitive switch is installed in the ground connection of this switch cubicle cashier's office in a shop.
Among one embodiment: described secondary plug is aviation plug.
Among one embodiment: this handcart body is also provided with electrical verification transducer, for described electrification display with the use of.
The technical program is compared with background technology, and its tool has the following advantages:
1, one can moveable high-voltage switchgear earth handcart, and comprise handcart body, this handcart body is provided with earthed switch, slide plate, electrification display and the first latching electromagnet, and described slide plate connects earthed switch and can order about this ground switch earthing; Described electrification display and the first latching electromagnet are electrically connected in series, and described first latching electromagnet can allow or stop described slide plate to order about this ground switch earthing; When handcart is pushed into service position, whether chargedly bus is detected by electrification display, if not charged, can order about described slide plate and carry out ground connection operation to this earthed switch, if charged, the first latching electromagnet stops described slide plate to order about this earthed switch to carry out ground connection operation.Namely this earth handcart is integrated with the electricity-testing handcart of prior art and the function of earth handcart, a handcart only need be adopted can to complete the safety ground of switch cabinet main bus when carrying out ground connection operation to switch cubicle main bus bar, and operation is simpler, and workload is little.
2, this handcart body is also provided with the first sensitive switch, the second latching electromagnet, described first sensitive switch and the second latching electromagnet are electrically connected in series, described first sensitive switch be positioned at described slide plate below and can it be switched on or switched off by the Position Control of slide plate, described second latching electromagnet can allow or stop this handcart body to be advanced to service position from test position; When handcart is positioned at test position, if this earthed switch is in ground state, then described slide plate disconnects described first sensitive switch, and described second latching electromagnet stops this handcart to be advanced to service position from test position.Namely prevent handcart to be in ground state at earthed switch and be pushed into service position, avoid human operational error, anti-error performance is better, effectively protects the safety of maintenance personal and electric equipment.
3, this switch cubicle is provided with the second sensitive switch, this handcart body is also provided with the switch boards for being switched on or switched off the second sensitive switch; During handcart promotion position, described switch boards cuts off described second sensitive switch, main bus bar power-off.Namely avoid because handcart main bus bar in push-on process powers on suddenly and causes security incident, effectively protect the safety of maintenance personal and electric equipment, avoid human operational error, anti-error performance is better, effectively protects the safety of maintenance personal and electric equipment.
4, this earthed switch is high speed grounding switch, realizes rapid grounding, avoids the generation of interior unit cell model.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Fig. 1 is the integrally-built front view of the utility model.
Fig. 2 is that the B-B of Fig. 1 is to cutaway view.
Fig. 3 is the electrical connection diagram of the utility model first latching electromagnet.
Fig. 4 is the electrical connection diagram of the utility model second latching electromagnet.
Fig. 5 is the electrical connection diagram of the utility model electrification display.
Embodiment
Please refer to Fig. 1 and Fig. 2, one can moveable high-voltage switchgear earth handcart, comprise handcart body 10, this handcart body 10 is provided with earthed switch 1, slide plate 2, electrification display 3 and the first latching electromagnet 4, and this slide plate 2 connects earthed switch 1 and can order about this earthed switch 1 ground connection; This electrification display 3 and the first latching electromagnet 4 are electrically connected in series, and this first latching electromagnet 4 can allow or stop this slide plate 2 to order about this ground switch earthing;
This handcart body 10 is also provided with the first sensitive switch 5, second latching electromagnet 6 and secondary plug 7, this the first sensitive switch 5, second latching electromagnet 6 and secondary plug 7 are electrically connected in series, this first sensitive switch 5 is positioned at the below of this slide plate 2 and controls being switched on or switched off of this first sensitive switch 5 by slide plate 2 position, this second latching electromagnet 6 can allow or stop this handcart body 10 to be advanced to service position from test position, and this secondary plug 7 can be plugged in switch cubicle and carry out power taking; In the present embodiment, this secondary plug 7 is aviation plug.
This switch cubicle is provided with the second sensitive switch (not shown), this handcart body 10 is also provided with the switch boards (not shown) for being switched on or switched off this second sensitive switch; In the present embodiment, this second sensitive switch is installed in the ground connection left side cashier's office in a shop of this switch cubicle.
Fig. 3, Fig. 4 and Fig. 5 show the electric connecting mode of the utility model secondary circuit side, wherein C1 is the first latching electromagnet, C2 is the second latching electromagnet, contact 3,4 is the connecting and disconnecting contact of electrification display, and when electrification display is charged, this contact switch disconnects, when electrification display is not charged, this contact switch closes, and contact 1,2 is the connecting and disconnecting contact of the first sensitive switch, and this first sensitive switch is normally closed switch.This handcart body is also provided with electrical verification transducer 8, for described electrification display with the use of, in Fig. 2, electric capacity CGA, CGB, CGC of electrical verification transducer 8 form charged dividing potential drop with the electric capacity in electrification display respectively, to realize the live detection of electrification display.
In the present embodiment, this earthed switch 1 is high speed grounding switch.
This can the concrete operating process of moveable high-voltage switchgear earth handcart as follows:
When needing to overhaul switch cubicle, this handcart is pushed in cabinet, secondary plug 7 is inserted switch cubicle, now, if the earthed switch of this handcart 1 is in ground state, then this slide plate 2 is in the position after ordering about this ground switch earthing, now this first sensitive switch 5 just in time disconnects by this slide plate 2 present position, this second latching electromagnet 6 disconnects also not adhesive, then handcart can not be pushed into service position from test position, if the earthed switch of handcart 1 is in off-state, then this first sensitive switch 5 is connected, this second latching electromagnet 6 is connected and adhesive, handcart can be pushed into service position from test position.
When handcart is from test position promotion position, the switch boards on this handcart body can contact the second sensitive switch on this switch cubicle and cut off this second sensitive switch, then service entrance switch closing circuit is cut off, and main bus bar can not be charged again.This step can be prevented in the progradation of handcart, and main bus bar powers on suddenly the potential safety hazard caused, and plays fool proof function.
When handcart is pushed into service position, whether electrification display 3 can detect main bus bar charged, if not charged, the first latching electromagnet adhesive, by operating this slide plate 2, ground connection is carried out to this earthed switch 1, if charged, the first latching electromagnet 4 loop disconnects not adhesive, and the first latching electromagnet 4 stops this slide plate to press down to order about this earthed switch 1 and carries out ground connection operation.
The novel described one of this enforcement can moveable high-voltage switchgear earth handcart; operation is simpler, workload is less; effectively can protect the safety of attendant and electric equipment, avoid artificial operate miss, anti-error performance better, achieve rapid grounding, avoid producing interior unit cell model.
The above, be only the utility model preferred embodiment, therefore the scope that the utility model implements can not be limited according to this, the equivalence namely done according to the utility model the scope of the claims and description change with modify, all should still belong in scope that the utility model contains.
Claims (8)
1. one kind can moveable high-voltage switchgear earth handcart, comprise handcart body, it is characterized in that: this handcart body is provided with earthed switch, slide plate, electrification display and the first latching electromagnet, described slide plate connects earthed switch and can order about this ground switch earthing; Described electrification display and the first latching electromagnet are electrically connected in series, and described first latching electromagnet can allow or stop described slide plate to order about this ground switch earthing; When handcart is pushed into service position, whether chargedly main bus bar is detected by electrification display, if not charged, can operate described slide plate and carry out ground connection operation to this earthed switch, if charged, the first latching electromagnet stops described slide plate to order about this earthed switch to carry out ground connection operation.
2. one according to claim 1 can moveable high-voltage switchgear earth handcart, it is characterized in that: this handcart body is also provided with the first sensitive switch, the second latching electromagnet, described first sensitive switch and the second latching electromagnet are electrically connected in series, described first sensitive switch be positioned at described slide plate below and can it be switched on or switched off by the Position Control of slide plate, described second latching electromagnet can allow or stop this handcart body to be advanced to service position from test position; When handcart is positioned at test position, if this earthed switch is in ground state, then described slide plate disconnects described first sensitive switch, and described second latching electromagnet stops this handcart to be advanced to service position from test position.
3. one according to claim 1 and 2 can moveable high-voltage switchgear earth handcart, it is characterized in that: this switch cubicle is provided with the second sensitive switch, this handcart body being also provided with the switch boards for being switched on or switched off the second sensitive switch; During handcart promotion position, described switch boards cuts off described second sensitive switch, and main bus bar is no longer charged.
4. one according to claim 1 and 2 can moveable high-voltage switchgear earth handcart, it is characterized in that: this earthed switch is high speed grounding switch.
5. one according to claim 2 can moveable high-voltage switchgear earth handcart, it is characterized in that: this handcart body is also provided with and can be plugged in the secondary plug that switch cubicle carries out power taking, described secondary plug described first sensitive switch of electrical connection and the second latching electromagnet.
6. one according to claim 3 can moveable high-voltage switchgear earth handcart, it is characterized in that: described second sensitive switch is installed in the ground connection of this switch cubicle cashier's office in a shop.
7. one according to claim 5 can moveable high-voltage switchgear earth handcart, it is characterized in that: described secondary plug is aviation plug.
8. one according to claim 1 can moveable high-voltage switchgear earth handcart, it is characterized in that: this handcart body is also provided with electrical verification transducer, for described electrification display with the use of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420727063.2U CN204243592U (en) | 2014-11-27 | 2014-11-27 | One can moveable high-voltage switchgear earth handcart |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420727063.2U CN204243592U (en) | 2014-11-27 | 2014-11-27 | One can moveable high-voltage switchgear earth handcart |
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| CN204243592U true CN204243592U (en) | 2015-04-01 |
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| CN201420727063.2U Active CN204243592U (en) | 2014-11-27 | 2014-11-27 | One can moveable high-voltage switchgear earth handcart |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104979770A (en) * | 2015-06-24 | 2015-10-14 | 国家电网公司 | Electricity testing grounding device preventing ground wire connection in electrified condition and preventing switch closing in the presence of ground wire |
| CN107565437A (en) * | 2017-10-17 | 2018-01-09 | 湖南雁能森源电力设备有限公司 | A kind of position monitoring apparatus of switch-cabinet grounding handcart |
| 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 |
| WO2020155946A1 (en) * | 2019-01-31 | 2020-08-06 | 河南平高通用电气有限公司 | Switchgear trolley provided with lightning arrester and switchgear using same |
-
2014
- 2014-11-27 CN CN201420727063.2U patent/CN204243592U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104979770A (en) * | 2015-06-24 | 2015-10-14 | 国家电网公司 | Electricity testing grounding device preventing ground wire connection in electrified condition and preventing switch closing in the presence of ground wire |
| 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 |
| CN107565437A (en) * | 2017-10-17 | 2018-01-09 | 湖南雁能森源电力设备有限公司 | A kind of position monitoring apparatus of switch-cabinet grounding handcart |
| CN107565437B (en) * | 2017-10-17 | 2023-08-15 | 湖南长高森源电力设备有限公司 | Position monitoring device of switch cabinet grounding handcart |
| WO2020155946A1 (en) * | 2019-01-31 | 2020-08-06 | 河南平高通用电气有限公司 | Switchgear trolley provided with lightning arrester and switchgear using same |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |