CN206727427U - Medium voltage switchgear equipment - Google Patents
Medium voltage switchgear equipment Download PDFInfo
- Publication number
- CN206727427U CN206727427U CN201720296068.8U CN201720296068U CN206727427U CN 206727427 U CN206727427 U CN 206727427U CN 201720296068 U CN201720296068 U CN 201720296068U CN 206727427 U CN206727427 U CN 206727427U
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- Prior art keywords
- normally opened
- trip relay
- equipment
- medium voltage
- breaker
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Abstract
The utility model discloses a kind of medium voltage switchgear equipment, including：The circuit being formed by connecting in cabinet and cabinet by electrical equipment, anti-trip relay is provided with the circuit, the normally opened node of anti-trip relay is connected on anti-jump path, characterized in that, the normally opened node of anti-trip relay of the normally opened auxiliary magnet of a breaker with being located in the anti-jump path is connected in parallel in the equipment.The medium voltage switchgear equipment passes through the normally opened node of a breaker is in parallel with the normally opened node of anti-trip relay, accordingly even when anti-trip relay can not start, also anti-jump, guarantee anti-bouncing function realization, it is achieved thereby that " dual fail-safe " of electric trip-preventing can be realized by the normally opened node of a breaker.
Description
Technical field
It the utility model is related to controller switching equipment field, more particularly to a kind of medium voltage switchgear equipment.
Background technology
At present, the breaker in 6KV~220KV country switchgear, if multiple division fault current in a short time,
The damage of primary cut-out will be caused, it is therefore necessary to which " anti-jump " function is set, so as to prevent that it is existing that breaker outgoing line from repeatedly dividing-closing
As, electrically " anti-jump " is typically all to realize this function by auxiliary reclay (TBJ), concrete principle as shown in figure 1, its
In, the contact breaking coil of protection exit relay, make circuit breaker trip.Now TBJ current coil is powered, and its is normally opened
Junction closure, such as now change-over switch KK, which closes a floodgate to order, not to disappear (or non-involution), and closing pulse does not release, TBJ pressure-wire
Circle makes relay self-sustaining, and its normally closed contact disconnects, and cutting off closing circuit prevents breaker to be so achieved that from closing a floodgate again
" anti-jump " function.After closing pulse releasing, TBJ potential winding power-off, relay reset contact restores to the original state.But inventor
It was found that：When auxiliary reclay TBJ current coils because when failure causes to act, then " anti-jump " disabler, can not ensure
Security.
The content of the invention
Based on the problems of prior art, the purpose of this utility model is to provide a kind of medium voltage switchgear equipment, can be
Anti-trip relay TBJ current coils still ensure anti-bouncing function, improve device security because when failure causes to act.
The purpose of this utility model is achieved through the following technical solutions：
The utility model embodiment provides a kind of medium voltage switchgear equipment, including：Cabinet is connected with cabinet by electrical equipment
The circuit formed, anti-trip relay is provided with the circuit, the normally opened node of anti-trip relay is connected on anti-jump path, its feature
It is, the normally opened node of the normally opened auxiliary magnet of the breaker in the equipment and the anti-trip relay being located in the anti-jump path is simultaneously
Connection connection.
The Medium voltage switch or circuit breaker that the utility model embodiment provides it can be seen from above-mentioned technical scheme provided by the utility model
Equipment, by the way that the normally opened node of a breaker is in parallel with the normally opened node of anti-trip relay, accordingly even when anti-trip relay
It can not start, anti-jump, guarantee anti-bouncing function realization, it is achieved thereby that electrically can be also realized by the normally opened node of a breaker
Anti-jump " dual fail-safe ".
Brief description of the drawings
It is required in being described below to embodiment in order to illustrate more clearly of the technical scheme of the utility model embodiment
The accompanying drawing used is briefly described, it should be apparent that, drawings in the following description are only some implementations of the present utility model
Example, on the premise of not paying creative work, can also be according to these accompanying drawings for one of ordinary skill in the art
Obtain other accompanying drawings.
Fig. 1 is the circuit diagram for the medium voltage switchgear equipment that prior art provides；
Fig. 2 is the circuit diagram for the medium voltage switchgear equipment that the utility model embodiment provides.
Embodiment
With reference to particular content of the present utility model, the technical scheme in the embodiment of the utility model is carried out it is clear,
It is fully described by, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole implementation
Example.Based on embodiment of the present utility model, those of ordinary skill in the art are obtained under the premise of creative work is not made
Every other embodiment, belong to the scope of protection of the utility model.
As shown in Fig. 2 the utility model embodiment provides a kind of medium voltage switchgear equipment, including：By electricity in cabinet and cabinet
The circuit that gas equipment is formed by connecting, is provided with anti-trip relay in the circuit, and the normally opened node of anti-trip relay is connected on anti-jump logical
Lu Shang, it is characterised in that the normally opened auxiliary magnet of the breaker in the equipment and be located in the anti-jump path it is described it is anti-jump after
The normally opened node of electrical equipment is connected in parallel.The normally opened auxiliary magnet of unique breaker and the anti-jump path will be located in the equipment
In the anti-trip relay normally opened node it is in parallel.
In above-mentioned medium voltage switchgear equipment, anti-trip relay uses auxiliary reclay.
Medium voltage switchgear equipment of the present utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
As shown in Fig. 2 when anti-trip relay TBJ (using auxiliary reclay) current coils because failure causes to move
Make, if when " anti-jump " function needs to start, the anti-trip relay is just faulty, can cause the damage of breaker, seriously
When the expansion that can cause the accident cause serious consequence.The utility model (on i.e. anti-jump path) and couples between 103 and No. 109 lines
The normally opened auxiliary magnet DL of a breaker is entered, the normally opened auxiliary magnet DL of the breaker is in parallel with the normally opened node of anti-trip relay
Connection.Accordingly even when anti-trip relay TBJ can not start, the normally opened auxiliary magnet DL of breaker also can guarantee that anti-bouncing function is realized,
It is achieved thereby that " dual fail-safe " of electric trip-preventing.The utility model realizes " double guarantors of anti-bouncing function in a simpler way
Danger ", ensure that the safe operation of equipment.
It is described above, the only preferable embodiment of the utility model, but the scope of protection of the utility model is not
This is confined to, any one skilled in the art can readily occur in the technical scope that the utility model discloses
Change or replacement, should all cover within the scope of protection of the utility model.Therefore, the scope of protection of the utility model should
It is defined by the protection domain of claims.
Claims (2)
1. a kind of medium voltage switchgear equipment, including：The circuit being formed by connecting in cabinet and cabinet by electrical equipment, it is provided with the circuit
Anti-trip relay, the normally opened node of anti-trip relay are connected on anti-jump path, it is characterised in that breaker in the equipment
The normally opened node of anti-trip relay of the normally opened auxiliary magnet with being located in the anti-jump path is connected in parallel.
2. medium voltage switchgear equipment according to claim 1, it is characterised in that the anti-trip relay uses middle relay
Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720296068.8U CN206727427U (en) | 2017-03-24 | 2017-03-24 | Medium voltage switchgear equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720296068.8U CN206727427U (en) | 2017-03-24 | 2017-03-24 | Medium voltage switchgear equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206727427U true CN206727427U (en) | 2017-12-08 |
Family
ID=60501367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720296068.8U Active CN206727427U (en) | 2017-03-24 | 2017-03-24 | Medium voltage switchgear equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206727427U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106856298A (en) * | 2017-03-24 | 2017-06-16 | 北京北方箱变电气有限公司 | Medium voltage switchgear equipment |
-
2017
- 2017-03-24 CN CN201720296068.8U patent/CN206727427U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106856298A (en) * | 2017-03-24 | 2017-06-16 | 北京北方箱变电气有限公司 | Medium voltage switchgear equipment |
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