CN202772439U - Enclosed type low voltage cabinet - Google Patents
Enclosed type low voltage cabinet Download PDFInfo
- Publication number
- CN202772439U CN202772439U CN 201220404246 CN201220404246U CN202772439U CN 202772439 U CN202772439 U CN 202772439U CN 201220404246 CN201220404246 CN 201220404246 CN 201220404246 U CN201220404246 U CN 201220404246U CN 202772439 U CN202772439 U CN 202772439U
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- CN
- China
- Prior art keywords
- cabinet
- incoming line
- closed contact
- incoming wire
- breaker normally
- 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 - Lifetime
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Abstract
The utility model discloses an enclosed type low voltage cabinet, belonging to the technical field of power supply equipment, wherein a first incoming wire cabinet closing button, a second incoming wire cabinet breaker normally-closed contact and a first incoming wire cabinet breaker are orderly connected in series in the control loop of a first incoming wire cabinet; a sectional cabinet breaker normally-closed contact is connected across both ends of the second incoming wire cabinet breaker normally-closed contact; a second incoming wire cabinet closing button, a first incoming wire cabinet breaker normally-closed contact and a second incoming cabinet breaker are orderly connected in series in the control loop of a second incoming wire cabinet; the sectional cabinet breaker normally-closed contact is connected across both ends of the first incoming wire cabinet breaker normally-closed contact; a sectional cabinet closing button, the first incoming wire cabinet breaker normally-closed contact and a sectional cabinet breaker are orderly connected in series in the control loop of a sectional cabinet; and the second incoming wire cabinet normally-closed contact is connected across both ends of the first incoming wire cabinet breaker normally-closed contact. The enclosed type low voltage cabinet has the beneficial effects of overcoming the defect of easily damaging interlocking key and lock, adding an electrical lock into the incoming wire cabinets and the sectional cabinet, and increasing low voltage cabinet work reliability and safety.
Description
Technical field
The utility model relates to a kind of enclosed type low-voltage cabinet, belongs to the electric supply installation technical field.
Background technology
Fast development for present China's economic, the residential quarter, factory, enterprises and institutions' power demands increases, requirement to the fail safe of low-voltage distribution chamber is more and more stricter, two incoming line cabinets in low-voltage distribution chamber and segmentation cabinet are forbidden to close a floodgate simultaneously, otherwise can cause great security incident, usually be by key lock interlocking (three locks, two keys) between two incoming line cabinets in low-voltage distribution chamber and the segmentation cabinet, can only open simultaneously wherein any two cabinets of two incoming line cabinets and segmentation cabinet, three cabinet can not occur and open simultaneously the situation of combined floodgate, because divide-shut brake need plug key in long-term use procedure, cause wearing and tearing or the breaking-up of key, time has been grown and three cabinet will occur and open simultaneously and cause false switching, give and to be sent electricity to bring danger, for remedying the defective of key lock interlocking (three locks, two keys), increase aobvious particularly important of the interlocking of electric aspect.
Summary of the invention
For the problem that above-mentioned prior art exists, the utility model provides a kind of enclosed type low-voltage cabinet, avoid closing a floodgate simultaneously two incoming line cabinets and segmentation cabinet, and coefficient of safety is high.
To achieve these goals, the technical solution adopted in the utility model is: a kind of enclosed type low-voltage cabinet, comprise an incoming line cabinet, segmentation cabinet and two incoming line cabinets, one incoming line cabinet, segmentation cabinet and two incoming line cabinets are connected successively, be in series with successively an incoming line cabinet switch knob in the control loop in one incoming line cabinet, two incoming line cabinet circuit breaker normally closed contacts and an incoming line cabinet circuit breaker, segmentation cabinet breaker normally closed contact is connected in parallel on the two ends of two incoming line cabinet circuit breaker normally closed contacts, be in series with successively two incoming line cabinet switch knobs in the control loop in two incoming line cabinets, one incoming line cabinet circuit breaker normally closed contact and two incoming line cabinet circuit breakers, segmentation cabinet breaker normally closed contact is connected in parallel on the two ends of an incoming line cabinet circuit breaker normally closed contact, be in series with successively segmentation cabinet switch knob in the control loop in the segmentation cabinet, one incoming line cabinet circuit breaker normally closed contact and segmentation cabinet breaker, two incoming line cabinet circuit breaker normally closed contacts are connected in parallel on the two ends of an incoming line cabinet circuit breaker normally closed contact.
The beneficial effects of the utility model are: remedy the flimsy defective of appearance of key lock interlocking, increase electric blocking in incoming line cabinet and segmentation cabinet, reliability and the fail safe of the low-voltage cabinet work of raising.
Description of drawings
Fig. 1 is the electric primary system figure of the utility model;
Fig. 2 is an incoming line cabinet secondary circuit control principle drawing;
Fig. 3 is two incoming line cabinet secondary circuit control principle drawings;
Fig. 4 is segmentation cabinet secondary circuit control principle drawing.
Among the figure: 1 a, incoming line cabinet, 11, an incoming line cabinet circuit breaker, 12, an incoming line cabinet switch knob, 13, an incoming line cabinet circuit breaker normally closed contact, 14, an incoming line cabinet cutout closing locking electromagnet, 2, two incoming line cabinets, 21, two incoming line cabinet circuit breakers, 22, two incoming line cabinet switch knobs, 23, two incoming line cabinet circuit breaker normally closed contacts, 24, two incoming line cabinet cutout closing locking electromagnet, 3, segmentation cabinet, 31, the segmentation cabinet breaker, 32, segmentation cabinet switch knob, 33, segmentation cabinet breaker normally closed contact, 34, segmentation cabinet cutout closing locking electromagnet.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
As shown in Figures 1 to 4, this enclosed type low-voltage cabinet, comprise an incoming line cabinet 1, segmentation cabinet 3 and two incoming line cabinets 2, one incoming line cabinet 1, segmentation cabinet 3 and two incoming line cabinets 2 are connected successively, be in series with successively an incoming line cabinet switch knob 12 in the control loop in one incoming line cabinet 1, two incoming line cabinet circuit breaker normally closed contacts 23 and an incoming line cabinet circuit breaker 11, segmentation cabinet breaker normally closed contact 33 is connected in parallel on the two ends of two incoming line cabinet circuit breaker normally closed contacts 23, be in series with successively two incoming line cabinet switch knobs 22 in the control loop in two incoming line cabinets 2, one incoming line cabinet circuit breaker normally closed contact 13 and two incoming line cabinet circuit breakers 21, segmentation cabinet breaker normally closed contact 33 is connected in parallel on the two ends of an incoming line cabinet circuit breaker normally closed contact 13, be in series with successively segmentation cabinet switch knob 32 in the control loop in the segmentation cabinet 3, one incoming line cabinet circuit breaker normally closed contact 13 and segmentation cabinet breaker 31, two incoming line cabinet circuit breaker normally closed contacts 23 are connected in parallel on the two ends of an incoming line cabinet circuit breaker normally closed contact 13.
One incoming line cabinet, 1 operation principle: when starting an incoming line cabinet switch knob 12, owing in control loop, seal in the parallel circuits of two incoming line cabinet circuit breaker normally closed contacts 23 and segmentation cabinet breaker normally closed contact 33, in an incoming line cabinet 1 closure, one incoming line cabinet cutout closing locking electromagnet 14 electric after, one incoming line cabinet opens circuit 11 when being in "on" position, two incoming line cabinets 2 and segmentation cabinet 3 can only close a floodgate wherein arbitrary, two incoming line cabinets 2 and segmentation cabinet 3 if close a floodgate simultaneously, then an incoming line cabinet 1 control loop is obstructed, one incoming line cabinet cutout closing locking electromagnet 14 can't get electric combined floodgate, thereby has guaranteed can only close arbitrarily two between the three station power distribution cabinets.
Two incoming line cabinets, 2 operation principles: when starting two incoming line cabinet switch knobs 22, owing in control loop, seal in the parallel circuits of an incoming line cabinet circuit breaker normally closed contact 13 and segmentation cabinet breaker normally closed contact 33, in two incoming line cabinets, 2 closures, two incoming line cabinet cutout closing locking electromagnet 24 electric after, when two incoming line cabinet circuit breakers 21 are in "on" position, one incoming line cabinet 1 and segmentation cabinet 3 can only close a floodgate wherein arbitrary, an incoming line cabinet 1 and segmentation cabinet 3 if close a floodgate simultaneously, then two incoming line cabinets, 2 control loops are obstructed, two incoming line cabinet cutout closing locking electromagnet 24 can't get electric combined floodgate, have guaranteed can only close arbitrarily two between the three station power distribution cabinets.
Claims (1)
1. enclosed type low-voltage cabinet, comprise an incoming line cabinet (1), segmentation cabinet (3) and two incoming line cabinets (2), one incoming line cabinet (1), segmentation cabinet (3) and two incoming line cabinets (2) are connected successively, it is characterized in that, be in series with successively an incoming line cabinet switch knob (12) in the control loop in one incoming line cabinet (1), two incoming line cabinet circuit breaker normally closed contacts (23) and an incoming line cabinet circuit breaker (11), segmentation cabinet breaker normally closed contact (33) is connected in parallel on the two ends of two incoming line cabinet circuit breaker normally closed contacts (23), be in series with successively two incoming line cabinet switch knobs (22) in the control loop in two incoming line cabinets (2), one incoming line cabinet circuit breaker normally closed contact (13) and two incoming line cabinet circuit breakers (21), segmentation cabinet breaker normally closed contact (33) is connected in parallel on the two ends of an incoming line cabinet circuit breaker normally closed contact (13), be in series with successively segmentation cabinet switch knob (32) in the control loop in the segmentation cabinet (3), one incoming line cabinet circuit breaker normally closed contact (13) and segmentation cabinet breaker (31), two incoming line cabinet circuit breaker normally closed contacts (23) are connected in parallel on the two ends of an incoming line cabinet circuit breaker normally closed contact (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220404246 CN202772439U (en) | 2012-08-15 | 2012-08-15 | Enclosed type low voltage cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220404246 CN202772439U (en) | 2012-08-15 | 2012-08-15 | Enclosed type low voltage cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202772439U true CN202772439U (en) | 2013-03-06 |
Family
ID=47778982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220404246 Expired - Lifetime CN202772439U (en) | 2012-08-15 | 2012-08-15 | Enclosed type low voltage cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202772439U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102891440A (en) * | 2012-08-15 | 2013-01-23 | 徐州新电高科电气有限公司 | Lock-type low-voltage cabinet |
| CN110445028A (en) * | 2019-08-13 | 2019-11-12 | 湖南斯德克智能开关有限公司 | Distribution system control method and distribution system based on two dimensional code control |
| CN110601348A (en) * | 2019-09-18 | 2019-12-20 | 广东金升电器股份有限公司 | Mechanical interlocking device of power supply transmission system |
-
2012
- 2012-08-15 CN CN 201220404246 patent/CN202772439U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102891440A (en) * | 2012-08-15 | 2013-01-23 | 徐州新电高科电气有限公司 | Lock-type low-voltage cabinet |
| CN110445028A (en) * | 2019-08-13 | 2019-11-12 | 湖南斯德克智能开关有限公司 | Distribution system control method and distribution system based on two dimensional code control |
| CN110445028B (en) * | 2019-08-13 | 2021-01-05 | 湖南斯德克智能科技有限公司 | Power distribution system control method based on two-dimensional code control and power distribution system |
| CN110601348A (en) * | 2019-09-18 | 2019-12-20 | 广东金升电器股份有限公司 | Mechanical interlocking device of power supply transmission system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130306 |