CN201498875U - Low-voltage annular mesh cabinet capable of doing various kinds of conversion - Google Patents
Low-voltage annular mesh cabinet capable of doing various kinds of conversion Download PDFInfo
- Publication number
- CN201498875U CN201498875U CN2009202033945U CN200920203394U CN201498875U CN 201498875 U CN201498875 U CN 201498875U CN 2009202033945 U CN2009202033945 U CN 2009202033945U CN 200920203394 U CN200920203394 U CN 200920203394U CN 201498875 U CN201498875 U CN 201498875U
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- bus
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- side insulating
- switches
- power supply
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Abstract
The utility model relates to the technical filed of power supply equipment, in particular to a low-voltage annular mesh cabinet capable of doing various kinds of conversion, which comprises a cabinet body, two groups of power supply side insulating switches, two groups of load side insulating switches, a main bus and a zero bus, wherein the power supply side insulating switches are arranged in the cabinet body, two groups of power supply side insulating switches and two groups of load side insulating switches are connected through the main bus and a bridge bus in a bridge type wiring mode, a grounding bus is arranged on one side of the cabinet body, the lower end of the grounding bus is connected with the zero bus through a support insulator, and the zero bus is fixed on the lower side of two groups of load side insulating switches of the lower part of the cabinet body through the support insulator. The utility model has the advantages that various kinds of conversion can be realized, two groups of power supply side insulating switches and two groups of load side insulating switches are connected through the main bus and the bridge bus in the bridge type wiring mode, the electric wire design is simplified, the safety performance is good, and the overhaul and maintenance work load is small. Because the copper bar bus consumption is low, so the production cost is low.
Description
Technical field
The utility model relates to the power supply unit technical field, particularly a kind of low pressure ring main unit of doing multiple conversion.
Background technology
The power supply unit that is used for dwelling house, commercial network etc. is low pressure one distribution system of three-phase five-wire mode (380v/220v) power supply.At present, the low pressure ring main unit that is adopted in this distribution system exists complex circuit, line contacts problem how, so security performance is relatively poor, and the repair and maintenance workload is big; Because copper bar bus consumption is big, so production cost is higher.
Summary of the invention
The utility model purpose is to be to provide the low pressure ring main unit of doing multiple conversion that a kind of security performance is higher, the repair and maintenance workload is less, production cost is lower.
The purpose of this utility model realizes by following technical proposals:
The low pressure ring main unit of doing multiple conversion of the present utility model, comprise cabinet, be located at two groups of mains side isolating switches in this cabinet, two groups of load side isolating switches, main bus bar, zero bus, it is characterized in that described two groups of mains side isolating switches, two groups of load side isolating switches are connected according to the bridge connection mode with the bridge bus by main bus bar, have an earth bus to be arranged on a side of described cabinet, its lower end is connected with described zero bus by supporting insulator.
Described zero bus is fixed on the downside of the two groups of load side isolating switches in bottom of described cabinet by supporting insulator.
Described mains side isolating switch is a HD11-400/39B type isolating switch.
Described load side isolating switch is a HD11-200/39B type isolating switch.
The utility model has the advantages that: can realize multiple conversion; Two groups of mains side isolating switches, two groups of load side isolating switches are connected according to the bridge connection mode with the bridge bus by main bus bar, have simplified the electric wiring design, and security performance is better, and the repair and maintenance workload is little; Because copper bar bus consumption is few, so production cost is lower.
Description of drawings
Fig. 1 is a circuit block diagram of the present utility model.
Embodiment
Further specify embodiment of the present utility model below in conjunction with accompanying drawing.
As shown in Figure 1, the low pressure ring main unit of doing multiple conversion of the present utility model, comprise cabinet 1, be located at two groups of mains side isolating switches 3 in this cabinet 1, two groups of load side isolating switches 6, main bus bar 5, bridge bus 4, zero bus 7, it is characterized in that described two groups of mains side isolating switches 3, two groups of load side isolating switches 6 are connected according to the bridge connection mode with bridge bus 4 by main bus bar 5, have an earth bus 2 to be arranged on a side of described cabinet 1, its lower end is connected with described zero bus 7 by supporting insulator 9.
Described zero bus 7 is fixed on the downside of the two groups of load side isolating switches 6 in bottom of described cabinet 1 by supporting insulator 8.
Described mains side isolating switch 3 is a HD11-400/39B type isolating switch.
Described load side isolating switch 6 is a HD11-200/39B type isolating switch.
The utility model has the advantages that: can realize multiple conversion; Two groups of mains side isolating switches, two groups of load side isolating switches are connected according to the bridge connection mode with the bridge bus by main bus-bar, have simplified the electric wiring design, and security performance is better, and the repair and maintenance workload is little; Because the copper bar bus line consumption is few, so production cost is lower.
Claims (4)
1. the low pressure ring main unit that can do multiple conversion, comprise cabinet, be located at two groups of mains side isolating switches in this cabinet, two groups of load side isolating switches, main bus bar, zero bus, it is characterized in that described two groups of mains side isolating switches, two groups of load side isolating switches are connected according to the bridge connection mode with the bridge bus by main bus bar, have an earth bus to be arranged on a side of described cabinet, its lower end is connected with described zero bus by supporting insulator.
2. the low pressure ring main unit of doing multiple conversion according to claim 1 is characterized in that described zero bus is fixed on the downside of the two groups of load side isolating switches in bottom of described cabinet by supporting insulator.
3. the low pressure ring main unit of doing multiple conversion according to claim 1 is characterized in that described mains side isolating switch is a HD11-400/39B type isolating switch.
4. the low pressure ring main unit of doing multiple conversion according to claim 1 is characterized in that described load side isolating switch is a HD11-200/39B type isolating switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202033945U CN201498875U (en) | 2009-09-18 | 2009-09-18 | Low-voltage annular mesh cabinet capable of doing various kinds of conversion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202033945U CN201498875U (en) | 2009-09-18 | 2009-09-18 | Low-voltage annular mesh cabinet capable of doing various kinds of conversion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201498875U true CN201498875U (en) | 2010-06-02 |
Family
ID=42442071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202033945U Expired - Fee Related CN201498875U (en) | 2009-09-18 | 2009-09-18 | Low-voltage annular mesh cabinet capable of doing various kinds of conversion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201498875U (en) |
-
2009
- 2009-09-18 CN CN2009202033945U patent/CN201498875U/en not_active Expired - Fee Related
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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: 20100602 Termination date: 20110918 |