CN203180327U - Safety protection system of centrally-installed switchgear - Google Patents
Safety protection system of centrally-installed switchgear Download PDFInfo
- Publication number
- CN203180327U CN203180327U CN 201320197210 CN201320197210U CN203180327U CN 203180327 U CN203180327 U CN 203180327U CN 201320197210 CN201320197210 CN 201320197210 CN 201320197210 U CN201320197210 U CN 201320197210U CN 203180327 U CN203180327 U CN 203180327U
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- CN
- China
- Prior art keywords
- cabinet
- travel switch
- mid
- protection system
- centrally
- 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
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- 230000005611 electricity Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000005457 optimization Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
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Abstract
The utility model discloses a safety protection system of a centrally-installed switchgear. The safety protection system comprises a cabinet door and a travel switch, wherein the travel switch is arranged at the cabinet door, and the travel switch is connected with electrical equipment in the centrally-installed switchgear in series. As the centrally-installed switchgear adopts the abovementioned technical scheme, when the cabinet door is at an opening state, the travel switch is disconnected, a conduction circuit can be formed in the centrally-installed switchgear, and power cannot be supplied, and thus accidents are prevented.
Description
Technical field
The utility model relates to a kind of parts of mid-cabinet, specifically is a kind of mid-cabinet security protection system.
Background technology
Mid-cabinet, full name are the mid-withdraw-type switchgear of metal armouring, and the electricity that is subjected to that send electricity, electric power system secondary substation that is mainly used in power plant, medium and small generator send the distribution of electricity, industrial and mineral enterprises and institutions and the starting of large-scale high-tension motor etc.Mid-cabinet belongs to high voltage distribution installation, therefore will carry out security protection work.In the prior art, just adorning an electromagnetic lock at mid-cabinet back door protects, namely have only when power failure just can open work such as the cabinet door overhauls, do not have a power failure and to open the cabinet door, but but do not consider just can send under the situation that Men Wei shuts, just send electricity if Men Wei shuts, cause the accident easily.
Summary of the invention
The purpose of this utility model is: at the problem of above-mentioned existence, provide a kind of mid-cabinet, can't send under the situation of not closing the door.
The utility model is achieved through the following technical solutions:
A kind of mid-cabinet security protection system comprises cabinet and cabinet door, and cabinet and cabinet door junction are provided with travel switch, and electric equipment and power supply are connected in series in the normally opened contact of described travel switch and the mid-cabinet.
As the present invention further optimization scheme, described travel switch is connected in series between power supply and the closing coil.
As the present invention further optimization scheme, described travel switch is connected in series in power supply and isolates between the latching electromagnet of handcart position.
The utlity model has following beneficial effect:
Because mid-cabinet of the present utility model, the place is provided with travel switch at the cabinet door, and electric equipment is connected in series in travel switch and the mid-cabinet, when cabinet door place and opening, travel switch disconnects, and can't form the conducting loop in the mid-cabinet, also just can't send electricity, prevent the generation of accident.
Description of drawings
Fig. 1 is mid-cabinet security protection system schematic diagram.
Fig. 2 is the circuit theory diagrams of embodiment 1.
Fig. 3 is the circuit theory diagrams of embodiment 2.
Fig. 4 is mid-cabinet schematic diagram.
Embodiment
As depicted in figs. 1 and 2, a kind of mid-cabinet security protection system comprises cabinet door 2, and 2 places are provided with travel switch 1 at the cabinet door, and travel switch 1 is connected in series with the interior electric equipment of mid-cabinet.
As shown in Figure 2, in incoming line cabinet, travel switch is connected between power supply and the closing coil, and when the cabinet door was in opening, travel switch disconnected, and can't form the conducting loop, and closing coil can't be worked, and also just can't send.
As shown in Figure 3, isolate in the cabinet at inlet wire, travel switch is connected on power supply and isolates between the latching electromagnet of handcart position, be that travel switch disconnects, and can't form the conducting loop when the cabinet door is in opening, electromagnet can't be worked, and isolates handcart and can't move, and also just can't send.
Claims (3)
1. a mid-cabinet security protection system comprises cabinet door (2), it is characterized in that: be provided with travel switch (1) at cabinet door place, electric equipment is connected in series in described travel switch and the mid-cabinet.
2. a kind of mid-cabinet security protection system according to claim 1, it is characterized in that: described travel switch (1) is connected in series between power supply and the closing coil.
3. a kind of mid-cabinet security protection system according to claim 1 is characterized in that: described travel switch (1) is connected in series in power supply and isolates between the latching electromagnet of handcart position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320197210 CN203180327U (en) | 2013-04-18 | 2013-04-18 | Safety protection system of centrally-installed switchgear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320197210 CN203180327U (en) | 2013-04-18 | 2013-04-18 | Safety protection system of centrally-installed switchgear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203180327U true CN203180327U (en) | 2013-09-04 |
Family
ID=49076987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320197210 Expired - Fee Related CN203180327U (en) | 2013-04-18 | 2013-04-18 | Safety protection system of centrally-installed switchgear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203180327U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103178449A (en) * | 2013-04-18 | 2013-06-26 | 国家电网公司 | Safety protection system for centrally installed switchgear |
-
2013
- 2013-04-18 CN CN 201320197210 patent/CN203180327U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103178449A (en) * | 2013-04-18 | 2013-06-26 | 国家电网公司 | Safety protection system for centrally installed switchgear |
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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: 20130904 Termination date: 20190418 |