CN209046257U - A kind of direct current ring network cabinet circuit structure - Google Patents
A kind of direct current ring network cabinet circuit structure Download PDFInfo
- Publication number
- CN209046257U CN209046257U CN201822034266.4U CN201822034266U CN209046257U CN 209046257 U CN209046257 U CN 209046257U CN 201822034266 U CN201822034266 U CN 201822034266U CN 209046257 U CN209046257 U CN 209046257U
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- line
- negative
- honest
- streamline
- busbar
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Abstract
The utility model discloses a kind of direct current ring network cabinet circuit structures, including positive bus-bar, negative busbar, busbar grounding line, several honest streamlines, several negative AC lines and several ground lines, the honest streamline is connected in parallel on positive bus-bar, negative AC line is connected in parallel in negative busbar, ground line is connected in parallel on busbar grounding line, and the diode of one-way conduction is in series on honest streamline and negative AC line.Small micro generation equipment positive and negative anodes to solve the problems, such as DC grid are reversed to impact power grid.
Description
Technical field
The utility model relates to field of electrical equipment more particularly to a kind of direct current ring network cabinet circuit structures.
Background technique
DC grid has the characteristics that energy-efficient, is the developing direction of the following power grid, DC grid, which has, supports distribution
The superperformance of formula power grid, but direct current has directionality, the small micro generation equipment in distributed power grid is mostly
In family, once these equipment positive and negative anodes are reversed to impact power grid.
Summary of the invention
Technical problem to be solved by the utility model is: a kind of direct current ring network cabinet circuit structure is provided, to solve direct current
Small micro generation equipment positive and negative anodes reversed the problem of power grid being impacted of power grid.
The technical solution of the utility model is: a kind of direct current ring network cabinet circuit structure, including positive bus-bar, negative busbar, mother
Line ground line, several honest streamlines, several negative AC lines and several ground lines, the honest streamline are connected in parallel on positive bus-bar, are born
AC line is connected in parallel in negative busbar, and ground line is connected in parallel on busbar grounding line, is in series on honest streamline and negative AC line unidirectional
The diode of conducting.
Further, the diodes in parallel on the honest streamline and negative AC line has RC circuit.
Further, switch is in series on the honest streamline, negative AC line and ground line.
Further, emergency conversion line is equipped between the positive bus-bar and negative busbar, tandem tap on conversion line of meeting an urgent need, institute
Stating diode can reversed grafting.
The beneficial effects of the utility model are:
Compared with prior art, the utility model is connected the diode of one-way conduction on honest streamline and negative AC line,
The reversed influence caused by power grid of small micro generation equipment positive and negative anodes is isolated.The utility model structure is simple, especially suitable for straight
Galvanic electricity ring network cabinet circuit structure.
Detailed description of the invention
Fig. 1 is the circuit interconnect pattern of the utility model socket；
In figure: 1 positive bus-bar, 2 busbar grounding lines, 3 negative busbars, 4 honest streamlines, 5 ground lines, 6 negative AC lines, 7 diodes,
8 power generator, 9 RC circuits, 10 emergency conversion lines.
Specific embodiment
With reference to the accompanying drawing and utility model is described further in specific embodiment:
With reference to Fig. 1, a kind of direct current ring network cabinet circuit structure, including it is positive bus-bar 1, negative busbar 3, busbar grounding line 2, several
Honest streamline 4, several negative AC lines 6 and several ground lines 5, the honest streamline 4 is connected in parallel on positive bus-bar 1, and negative AC line 6 is simultaneously
It is associated in negative busbar 3, ground line 5 is connected in parallel on busbar grounding line 2, is in series with one-way conduction in honest streamline 4 and negative AC line 6
Diode 7.When 8 positive and negative anodes of power generator between honest streamline 4, negative AC line 6 and ground line 5 are reversed, due to two poles
Pipe 7 can only one-way conduction, power generator 8 issue electricity cannot be transmitted on bus, it is reversed right so as to avoid power generator 8
The influence of power grid.
Further, the diode 7 on the honest streamline 4 and negative AC line 6 is parallel with RC circuit 9.RC circuit 9 has
The ability that mutation voltage is connected, to play the role of protection diode 7.
Further, switch is in series on the honest streamline 4, negative AC line 6 and ground line 5.Switch can be with time control
Honest streamline 4, negative AC line 6 and the conducting and disconnection that are grounded 5 are made, allows to circuit convenient to overhaul, it can be with when fire
When cut off.
Further, it is equipped with emergency conversion line 10 between the positive bus-bar 1 and negative busbar 3, connects on conversion line 10 of meeting an urgent need
Switch, the diode 7 can reversed grafting.When positive bus-bar 1 and negative busbar 3 a wherein no electricity, connect in honest 4 He of streamline
Load between ground line 5 or between negative AC line 6 and ground line 5 will power off, at this time by connecting emergency conversion line 10
Switch and by the reversed grafting of diode 7 on the single line without electricity, can be temporarily using positive bus-bar 1 and negative busbar 3 wherein one
Root is as emergency.
It, cannot the above content is specific preferred embodiment further detailed description of the utility model is combined
Assert that the specific implementation of the utility model is only limited to these instructions.For the ordinary skill of the utility model technical field
For personnel, without departing from the concept of the premise utility, a number of simple deductions or replacements can also be made, should all regard
To belong to the protection scope of the utility model.
Claims (4)
1. a kind of direct current ring network cabinet circuit structure, including it is positive bus-bar (1), negative busbar (3), busbar grounding line (2), several honest
Streamline (4), several negative AC lines (6) and several ground lines (5), it is characterised in that: the honest streamline (4) is connected in parallel on positive bus-bar
(1) on, negative AC line (6) is connected in parallel on negative busbar (3), and ground line (5) is connected in parallel on busbar grounding line (2), honest streamline (4)
With the diode (7) for being in series with one-way conduction on negative AC line (6).
2. direct current ring network cabinet circuit structure according to claim 1, it is characterised in that: the honest streamline (4) and negative
Diode (7) in AC line (6) is parallel with RC circuit (9).
3. direct current ring network cabinet circuit structure according to claim 1, it is characterised in that: the honest streamline (4) is born directly
Switch is in series on streamline (6) and ground line (5).
4. according to claim 1 to direct current ring network cabinet circuit structure described in 3 any one, it is characterised in that: the positive pole
Emergency conversion line (10), tandem tap in emergency conversion line (10), the diode (7) are equipped between line (1) and negative busbar (3)
It can reversed grafting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822034266.4U CN209046257U (en) | 2018-12-05 | 2018-12-05 | A kind of direct current ring network cabinet circuit structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822034266.4U CN209046257U (en) | 2018-12-05 | 2018-12-05 | A kind of direct current ring network cabinet circuit structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209046257U true CN209046257U (en) | 2019-06-28 |
Family
ID=67044029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822034266.4U Active CN209046257U (en) | 2018-12-05 | 2018-12-05 | A kind of direct current ring network cabinet circuit structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209046257U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109347084A (en) * | 2018-12-05 | 2019-02-15 | 贵州电网有限责任公司 | A kind of direct current ring network cabinet circuit structure and application method |
-
2018
- 2018-12-05 CN CN201822034266.4U patent/CN209046257U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109347084A (en) * | 2018-12-05 | 2019-02-15 | 贵州电网有限责任公司 | A kind of direct current ring network cabinet circuit structure and application method |
| CN109347084B (en) * | 2018-12-05 | 2024-04-23 | 贵州电网有限责任公司 | Direct-current ring main unit circuit structure and use method |
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