CN201191715Y - Low voltage ring network cabinet - Google Patents
Low voltage ring network cabinet Download PDFInfo
- Publication number
- CN201191715Y CN201191715Y CNU2008200127036U CN200820012703U CN201191715Y CN 201191715 Y CN201191715 Y CN 201191715Y CN U2008200127036 U CNU2008200127036 U CN U2008200127036U CN 200820012703 U CN200820012703 U CN 200820012703U CN 201191715 Y CN201191715 Y CN 201191715Y
- Authority
- CN
- China
- Prior art keywords
- groups
- knife switch
- mother boards
- isolation knife
- main unit
- 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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Abstract
The utility model relates to an electric control device, which is especially suitable to a low-voltage ring main unit of a low-voltage power distribution system with 380 V. The ring main unit is formed by a body, a power supply side isolation knife switch, a load side isolation knife switch, main mother boards, sub mother boards and a zero mother board, wherein two groups of power supply side isolation knife switch and the load side isolation knife switch are arranged on the body, the zero mother board is arranged on the lower portion of the body through an insulator device, two groups of main mother boards are connected on the power supply side knife switch and the load side isolation knife switch, and three sub mother boards are connected with two groups of main mother boards. The utility model has the beneficial effects that the device simplifies the electric circuit design at a maximum degree owing to adopting an electric connecting structure in which two sub mother boards are provided, and two groups of main mother boards are connected between two isolation knife switches, reduces circuit connection points, and has low maintenance rate and high safety, reduces 70% copper board usage of the ring main unit than that of a traditional low-voltage ring main unit, and reduces production cost.
Description
Technical field
The utility model is a kind of electric control gear, particularly a kind of low pressure ring main unit that is applicable to the 380V low-voltage distribution system.
Background technology
At present, the main power source of sub-district housing unit electricity consumption, be to realize mutual articulating between the unit, form the little network of power supply, the electric connecting mode of conventional low ring main unit by the low pressure ring main unit, complex circuit, line contacts is many, and the repair and maintenance amount is big, and copper bar bus use amount is big, the cost height, fail safe is relatively poor.
Summary of the invention
Given this, the low pressure ring main unit that provides a kind of circuit simple and direct, safe is provided the purpose of this utility model.
The utility model is realized by following technical measures: a kind of low pressure ring main unit, form by cabinet, mains side disconnection switch, load-side disconnection switch, main busbar, secondary busbar, zero busbar, wherein two groups of mains side disconnection switch, load-side disconnection switch device are on cabinet, zero busbar by insulator arrangement in the cabinet bottom, two groups of master's busbars are connected on mains side disconnection switch and the load-side disconnection switch, and three secondary busbars are connected with two groups of master's busbars.
Described main busbar, secondary busbar adopt the copper bar material.
The beneficial effects of the utility model are, owing to adopt three secondary busbars, between two disconnection switch, connect the connecting structure for electrical equipment of two groups of master's busbars, simplified the electric wiring design of low pressure ring main unit to greatest extent, reduce line contacts, maintenance rate is low, and is safe, reduces ring main unit copper bar consumption, the copper bar consumption of contrast conventional low ring main unit can reduce 70%, reduces manufacturing cost.
Description of drawings
Fig. 1 is an electrical structure schematic diagram of the present utility model.
Fig. 2 is an electrical principle schematic diagram of the present utility model
Embodiment
With reference to Fig. 1,2, a kind of low pressure ring main unit, form by cabinet 5, mains side disconnection switch 1, load-side disconnection switch 3, main busbar 2, secondary busbar 6, zero busbar 7, wherein two groups of mains side disconnection switch 1, load-side disconnection switch 3 devices are on cabinet 5, zero busbar 7 installs in cabinet 5 bottoms by insulator 4, two groups of master's busbars 2 are connected on mains side disconnection switch 1 and the load-side disconnection switch 3, and three secondary busbars 6 are connected with two groups of master's busbars 2.
Claims (1)
1, a kind of low pressure ring main unit, form by cabinet, mains side disconnection switch, load-side disconnection switch, main busbar, secondary busbar, zero busbar, wherein two groups of mains side disconnection switch, load-side disconnection switch device are on cabinet, zero busbar by insulator arrangement in the cabinet bottom, two groups of master's busbars are connected on mains side disconnection switch and the load-side disconnection switch, it is characterized in that: three secondary busbars are connected with two groups of master's busbars.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200127036U CN201191715Y (en) | 2008-05-15 | 2008-05-15 | Low voltage ring network cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200127036U CN201191715Y (en) | 2008-05-15 | 2008-05-15 | Low voltage ring network cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201191715Y true CN201191715Y (en) | 2009-02-04 |
Family
ID=40335873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200127036U Expired - Fee Related CN201191715Y (en) | 2008-05-15 | 2008-05-15 | Low voltage ring network cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201191715Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104752963A (en) * | 2015-04-25 | 2015-07-01 | 杜志刚 | Intelligent low-voltage ring main unit |
-
2008
- 2008-05-15 CN CNU2008200127036U patent/CN201191715Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104752963A (en) * | 2015-04-25 | 2015-07-01 | 杜志刚 | Intelligent low-voltage ring main unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090204 Termination date: 20110515 |