CN205070286U - Distribution looped netowrk PT cabinet - Google Patents
Distribution looped netowrk PT cabinet Download PDFInfo
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- CN205070286U CN205070286U CN201520727280.6U CN201520727280U CN205070286U CN 205070286 U CN205070286 U CN 205070286U CN 201520727280 U CN201520727280 U CN 201520727280U CN 205070286 U CN205070286 U CN 205070286U
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Abstract
The utility model provides a distribution looped netowrk PT cabinet belongs to electrical equipment technical field, including three station load switch, arrester, voltage transformer, fuse, voltage transformer, generating line and the cabinet body, three station load switch's upper end and generating line butt joint, the fuse electric connection of three station load switch and lower extreme, electric connection between the voltage transformer of fuse and lower extreme, the arrester is established between three station load switch and voltage transformer, the inside at the cabinet body is all established to three station load switch, arrester, voltage transformer, fuse, voltage transformer and generating line. The direct electricity of getting can be realized to this PT cabinet on female the arranging of switching station, monitor the electric quantity, and two conventional functions that the PT cabinet was realized fungible have reduced the whole area of equipment, the intensive whole manufacturing cost of equipment, and reduced by a cupboard and also be favorable to the installation and safeguard, the stable performance, the structure is simplified, the reliability height.
Description
Technical field
The utility model relates to a kind of PT cabinet, and particularly a kind of distribution looped network PT cabinet, belongs to technical field of electric equipment.
Background technology
In order to improve power supply reliability, making user can obtain power supply from both direction, usually power supply network being connected into annular.This supply power mode is referred to as ring network power supply.Exchange in 10KV distribution system at industrial and mining enterprises, residential quarters, harbour and skyscraper etc., because load is held little, its high tension loop adopts on-load switch or vacuum contactor to control usually, and is furnished with high-tension fuse protection.This system adopts ring network to power usually, in ring network power supply, all can add PT cabinet and voltage transformer cabinet, is generally directly be attached on bus, to detect busbar voltage, realizes defencive function.Former box switching station, its PT cabinet, from incoming line cabinet power taking source, adopts rear loading type cable plug part in incoming line cabinet, if when this side is not as power inleting terminal, need be adjusted to front inserting cable plug, on-the-spot adjustment comparatively bothers; Meanwhile, the PT cabinet lightning arrester of the program is connected with incoming power all the time, and changing lightning arrester needs the whole piece circuit power-off of higher level electric substation.
Utility model content
The technical problems to be solved in the utility model overcomes existing defect, provides a kind of distribution looped network PT cabinet, employs the on-load switch of three stations, and ground connection position is overhauled.Fuse or voltage transformer can be changed by hotline maintenance, only on-load switch need be got to ground connection position during maintenance, effectively can solve the problem in background technology.
In order to solve the problems of the technologies described above, the utility model provides following technical scheme:
A kind of distribution looped network of the utility model PT cabinet, comprise three-stations load switch, lightning arrester, voltage transformer, fuse, voltage transformer, bus and cabinet, the upper end of described three-stations load switch is docked with bus, the fuse of described three-stations load switch and lower end is electrically connected, be electrically connected between described fuse and the voltage transformer of lower end, described lightning arrester is located between three-stations load switch and voltage transformer, and described three-stations load switch, lightning arrester, voltage transformer, fuse, voltage transformer and bus are all located at the inside of cabinet.
As a kind of optimal technical scheme of the present utility model, described cabinet is monolithic devices structure.
As a kind of optimal technical scheme of the present utility model, the dimensional height of described cabinet is 1490mm.
The beneficial effect that the utility model reaches is:
This PT cabinet can realize directly power taking on the busbar of switching station, electricity is monitored, the function that before alternative, conventional two PT cabinets realize, reduce Whole Equipment floor space, intensive Whole Equipment production cost, and decrease a cupboard and be also conducive to installing and safeguarding, stable performance, structure is simplified, and reliability is high.
Accompanying drawing explanation
Accompanying drawing is used to provide further understanding of the present utility model, and forms a part for specification, is used from explanation the utility model, does not form restriction of the present utility model with embodiment one of the present utility model.
In the accompanying drawings:
Fig. 1 is the structural representation of a kind of distribution looped network PT cabinet described in the utility model embodiment;
Fig. 2 is the cabinet body structure schematic diagram of a kind of distribution looped network PT cabinet described in the utility model embodiment.
Number in the figure 1, three-stations load switch; 2, lightning arrester; 3, voltage transformer; 4, fuse; 5, voltage transformer; 6, bus and 7, cabinet.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described, should be appreciated that preferred embodiment described herein is only for instruction and explanation of the utility model, and be not used in restriction the utility model.
Embodiment: as shown in Figure 1-2, a kind of distribution looped network of the utility model PT cabinet, comprise three-stations load switch 1, lightning arrester 2, voltage transformer 3, fuse 4, voltage transformer 5, bus 6 and cabinet 7, the upper end of three-stations load switch 1 is docked with bus 6, three-stations load switch 1 is electrically connected with the fuse 4 of lower end, be electrically connected between the voltage transformer 5 of fuse 4 and lower end, lightning arrester 2 is located between three-stations load switch 1 and voltage transformer 3, three-stations load switch 1, lightning arrester 2, voltage transformer 3, fuse 4, voltage transformer 5 and bus 6 are all located at the inside of cabinet 7.
In order to electric equipment is closed, strengthen security performance, to equipment use, operating personnel protect, and cabinet 7 is monolithic devices structure.
In order to realize directly spelling cabinet with other loop-network switch cabinets, the dimensional height of cabinet 7 is 1490mm.
Lightning arrester 2 of the present utility model is used for over-voltage, make electric equipment in electric power system from the harm of atmospheric over-voltage and internal overvoltage, voltage transformer 3 converts high voltage to normal low voltage (100V, 220V), for measuring, metering, protection is used, and the operating power of other switches in box switching station is provided, fuse 4 is used for when overload or short circuit occur circuit, after electric current exceedes setting certain hour, the heat produced with itself makes Melt molten and cut-offs the switching device of circuit, three-stations load switch 1, operating equipment normal duty electric current, and be adjustable to earthing position equipment is overhauled, the upper end of three-stations load switch 2 is docked with bus 6, electric current enters voltage transformer 5 by on-load switch conducting through overcurrent fuse 4, the voltage needed for equipment is converted to by voltage transformer 5 no-load voltage ratio, closed plug-in type is taked to dock with bus, the safe distance reduced, improve security reliability, this PT cabinet employs the on-load switch 1 of three stations, ground connection position is overhauled, fuse 4 or voltage transformer 5 can be changed by hotline maintenance, only on-load switch need be got to ground connection position during maintenance.Compared to the isolation knife only having deciliter state, more safe and reliable, the box switching station of PT cabinet is adopted to use special connecting piece to be directly connected with the main bus bar of ring main unit, main bus bar is charged, PT cabinet gets final product power taking, employs the isolation knife that three ripe station SF6 gas bags instead of scheme, stable performance, structure is simplified, and reliability is high.
Last it is noted that the foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, although be described in detail the utility model with reference to previous embodiment, for a person skilled in the art, it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection range of the present utility model.
Claims (3)
1. a distribution looped network PT cabinet, comprise three-stations load switch (1), lightning arrester (2), voltage transformer (3), fuse (4), voltage transformer (5), bus (6) and cabinet (7), it is characterized in that, the upper end of described three-stations load switch (1) is docked with bus (6), described three-stations load switch (1) is electrically connected with the fuse (4) of lower end, be electrically connected between the voltage transformer (5) of described fuse (4) and lower end, described lightning arrester (2) is located between three-stations load switch (1) and voltage transformer (3), described three-stations load switch (1), lightning arrester (2), voltage transformer (3), fuse (4), voltage transformer (5) and bus (6) are all located at the inside of cabinet (7).
2. a kind of distribution looped network PT cabinet according to claim 1, it is characterized in that, described cabinet (7) is monolithic devices structure.
3. a kind of distribution looped network PT cabinet according to claim 1 and 2, it is characterized in that, the dimensional height of described cabinet (7) is 1490mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520727280.6U CN205070286U (en) | 2015-09-18 | 2015-09-18 | Distribution looped netowrk PT cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520727280.6U CN205070286U (en) | 2015-09-18 | 2015-09-18 | Distribution looped netowrk PT cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205070286U true CN205070286U (en) | 2016-03-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520727280.6U Active CN205070286U (en) | 2015-09-18 | 2015-09-18 | Distribution looped netowrk PT cabinet |
Country Status (1)
| Country | Link |
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| CN (1) | CN205070286U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105207104A (en) * | 2015-09-18 | 2015-12-30 | 江苏南瑞恒驰电气装备有限公司 | Power-distribution ring network PT cabinet |
-
2015
- 2015-09-18 CN CN201520727280.6U patent/CN205070286U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105207104A (en) * | 2015-09-18 | 2015-12-30 | 江苏南瑞恒驰电气装备有限公司 | Power-distribution ring network PT cabinet |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |