CN205911656U - PT cabinet grounding handcart locking circuit - Google Patents
PT cabinet grounding handcart locking circuit Download PDFInfo
- Publication number
- CN205911656U CN205911656U CN201620587379.5U CN201620587379U CN205911656U CN 205911656 U CN205911656 U CN 205911656U CN 201620587379 U CN201620587379 U CN 201620587379U CN 205911656 U CN205911656 U CN 205911656U
- Authority
- CN
- China
- Prior art keywords
- cabinet
- handcart
- little bus
- locking
- auxiliary contact
- 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.)
- Expired - Fee Related
Links
- 230000005611 electricity Effects 0.000 abstract description 3
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 239000000411 inducer Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
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Abstract
The utility model discloses a PT cabinet grounding handcart locking circuit, include: a plurality of auxiliary contact of grounding handcart, a plurality of auxiliary contact electricity respectively are connected to little generating line of control and the little generating line of shutting, the little generating line electricity that locks is connected to locking circuit. From this, leave out heavy dynamic relay, simplified locking circuit to the security has improved.
Description
Technical field
The utility model is related to technical field of electric power and in particular to a kind of pt cabinet earth handcart exclusive circuit.
Background technology
Busbar grounding handcart is generally mounted in voltage transformer cabinet (pt cabinet), is configured with voltage transformer cabinet (pt cabinet)
The auxiliary contact of voltage mutual inducer trolley and busbar grounding handcart and secondary distribution.By busbar grounding handcart from electricity during normal operation
In pressure transformer cabinet (pt cabinet), pull-out, voltage mutual inducer trolley is pushed and is measured or measured work；By voltage during maintenance
Transformer handcart pulls out, and busbar grounding handcart is pushed in voltage transformer cabinet (pt cabinet) so that bus reliable ground, improves
Operating efficiency during maintenance.It can be seen that, busbar grounding handcart is to ensure that when high-tension distribution equipment overhauls that personal security is musted can not
Few safety means.
Because earth handcart is to ensure that the essential important measures of personal security when high-tension distribution equipment overhauls, because
This earth handcart with this section of bus other handcarts electric blocking must be safe and reliable.Be widely adopted at present electrically closes
Lock scheme is through this section of pt earth handcart locking, because earth handcart itself cannot draw so many auxiliary contact, therefore needs to adopt
Relay is extended, then is connected to other switch cubicles of this section by extension contact, and concatenates to locked loop, thus significantly increase closing
Lock circuit complexity, the security of impact power system.
Utility model content
The technical problems to be solved in the utility model is, simplifies the exclusive circuit of existing pt cabinet earth handcart, Yi Jiti
High security.
For this reason, the utility model embodiment provides a kind of pt cabinet earth handcart exclusive circuit, comprising: earth handcart many
Individual auxiliary contact, the plurality of auxiliary contact are respectively electrically connected to control little bus and the little bus of locking, the little bus of described locking
It is electrically connected to locked loop.
Preferably, the little bus of described locking is 2.
Preferably, the little bus of described locking is placed in the cabinet top of described pt cabinet.
Preferably, the described cabinet top controlling little bus to be placed in described pt cabinet.
Preferably, described auxiliary contact are 4.
The pt cabinet earth handcart exclusive circuit of the utility model embodiment, by setting up the little bus of locking, by earth handcart
Contact be led to the little bus of this locking, the little bus of this locking is powered for locked loop, such that it is able to omit weight motor type relay, simplify
Exclusive circuit, and improve security.
Brief description
Feature and advantage of the present utility model can be more clearly understood from by reference to accompanying drawing, accompanying drawing be schematic and not
It is interpreted as carrying out any restriction to the utility model, in the accompanying drawings:
Fig. 1 shows a kind of schematic diagram of pt cabinet earth handcart exclusive circuit of the utility model embodiment.
Specific embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail.
Although being described in conjunction with the accompanying embodiment of the present utility model, those skilled in the art can without departing from
In the case of spirit and scope of the present utility model, various modification can be adapted and modification, and such modification and modification each fall within by appended
Within claim limited range.
As shown in figure 1, the utility model embodiment provides a kind of pt cabinet earth handcart exclusive circuit, comprising:
Multiple auxiliary contact yw1-4 of earth handcart, the plurality of auxiliary contact be respectively electrically connected to control little bus km and
Locking little bus yw+/yw-, the little bus of this locking is electrically connected to locked loop.Specifically, this locked loop is located at and this pt cabinet
Other switch cubicles on same section of bus, for each handcart of this section of bus of locking.
The pt cabinet earth handcart exclusive circuit of the utility model embodiment, by setting up the little bus of locking, by earth handcart
Contact be led to the little bus of this locking, the little bus of this locking is powered for locked loop, such that it is able to omit weight motor type relay, simplify
Exclusive circuit, and improve security.
Preferably, this pt cabinet earth handcart exclusive circuit is used for high-tension switch cabinet, is particularly suited for as indoor switch cabinet cloth
The transformer station put.
Preferably, the little bus of locking is 2, is arranged at the cabinet top of pt cabinet.
Preferably, little bus is controlled to be placed in the cabinet top of pt cabinet.
Preferably, described auxiliary contact are 4.
Obviously, above-described embodiment is only intended to clearly illustrate example, and the not restriction to embodiment.Right
For those of ordinary skill in the art, can also make on the basis of the above description other multi-forms change or
Change.There is no need to be exhaustive to all of embodiment.And the obvious change thus extended out or
Change among still in protection domain of the present utility model.
Claims (5)
1. a kind of pt cabinet earth handcart exclusive circuit is it is characterised in that include:
Multiple auxiliary contact of earth handcart, the plurality of auxiliary contact are respectively electrically connected to control little bus and the little mother of locking
Line, the little bus of described locking is electrically connected to locked loop.
2. pt cabinet earth handcart exclusive circuit according to claim 1 is it is characterised in that the little bus of described locking is 2.
3. pt cabinet earth handcart exclusive circuit according to claim 1 is it is characterised in that the little bus of described locking is placed in institute
State the cabinet top of pt cabinet.
4. pt cabinet earth handcart exclusive circuit according to claim 1 is it is characterised in that the little bus of described control is placed in institute
State the cabinet top of pt cabinet.
5. pt cabinet earth handcart exclusive circuit according to claim 1 is it is characterised in that described auxiliary contact are 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620587379.5U CN205911656U (en) | 2016-06-14 | 2016-06-14 | PT cabinet grounding handcart locking circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620587379.5U CN205911656U (en) | 2016-06-14 | 2016-06-14 | PT cabinet grounding handcart locking circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205911656U true CN205911656U (en) | 2017-01-25 |
Family
ID=57815425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620587379.5U Expired - Fee Related CN205911656U (en) | 2016-06-14 | 2016-06-14 | PT cabinet grounding handcart locking circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205911656U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105958359A (en) * | 2016-06-14 | 2016-09-21 | 国网山东省电力公司青岛供电公司 | Lockout circuit for PT cabinet grounding handcart |
| CN109991517A (en) * | 2019-04-16 | 2019-07-09 | 华能山东石岛湾核电有限公司 | For judging the structure and its test method of position of failure point |
-
2016
- 2016-06-14 CN CN201620587379.5U patent/CN205911656U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105958359A (en) * | 2016-06-14 | 2016-09-21 | 国网山东省电力公司青岛供电公司 | Lockout circuit for PT cabinet grounding handcart |
| CN109991517A (en) * | 2019-04-16 | 2019-07-09 | 华能山东石岛湾核电有限公司 | For judging the structure and its test method of position of failure point |
| CN109991517B (en) * | 2019-04-16 | 2024-05-03 | 华能山东石岛湾核电有限公司 | Structure for judging fault point position and test method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170125 Termination date: 20180614 |