CN105207104A - Power-distribution ring network PT cabinet - Google Patents
Power-distribution ring network PT cabinet Download PDFInfo
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- CN105207104A CN105207104A CN201510598619.1A CN201510598619A CN105207104A CN 105207104 A CN105207104 A CN 105207104A CN 201510598619 A CN201510598619 A CN 201510598619A CN 105207104 A CN105207104 A CN 105207104A
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- cabinet
- voltage transformer
- load switch
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Abstract
The invention provides a power-distribution ring network PT cabinet and belongs to the technical field of electrical equipment. The power-distribution ring network PT cabinet comprises a three-station load switch, a lightening arrester, a voltage transformer, a fuse, a voltage transformer, a bus and a cabinet body. The upper end of the three-station load switch is connected with the bus in a butt joint mode, the three-station load switch is electrically connected with the fuse at the lower end, the fuse is electrically connected with the voltage transformer at the lower end, and the lightening arrester is arranged between the three-station load switch and the voltage transformer. The three-station load switch, the lightening arrester, the voltage transformer and the bus are arranged inside the cabinet body. The PT cabinet can take power from a busbar of a switching station directly, monitor the electricity quantity and replace common two PT cabinets in the prior art to achieve the functions, the overall area occupied by the equipment is reduced, the overall production cost of the equipment is lowered, one cabinet is omitted, installing and maintaining are facilitated, performance is stable, the structure is simplified, and reliability is high.
Description
Technical field
The present invention relates to a kind of PT cabinet, 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.
Summary of the invention
The technical problem to be solved in the present invention 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 invention provides following technical scheme:
A kind of distribution looped network of the present invention 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 preferred technical solution of the present invention, described cabinet is monolithic devices structure.
As a preferred technical solution of the present invention, the dimensional height of described cabinet is 1490mm.
The beneficial effect that the present invention 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 a further understanding of the present invention, and forms a part for specification, together with embodiments of the present invention for explaining the present invention, is not construed as limiting the invention.
In the accompanying drawings:
Fig. 1 is the structural representation of a kind of distribution looped network PT cabinet described in the embodiment of the present invention;
Fig. 2 is the cabinet body structure schematic diagram of a kind of distribution looped network PT cabinet described in the embodiment of the present invention.
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, the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein is only for instruction and explanation of the present invention, is not intended to limit the present invention.
Embodiment: as shown in Figure 1-2, a kind of distribution looped network of the present invention 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 invention 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 the preferred embodiments of the present invention, be not limited to the present invention, although with reference to previous embodiment to invention has been detailed description, 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.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
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 |
|---|---|---|---|
| CN201510598619.1A CN105207104A (en) | 2015-09-18 | 2015-09-18 | Power-distribution ring network PT cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510598619.1A CN105207104A (en) | 2015-09-18 | 2015-09-18 | Power-distribution ring network PT cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105207104A true CN105207104A (en) | 2015-12-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510598619.1A Pending CN105207104A (en) | 2015-09-18 | 2015-09-18 | Power-distribution ring network PT cabinet |
Country Status (1)
| Country | Link |
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| CN (1) | CN105207104A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109634177A (en) * | 2018-12-17 | 2019-04-16 | 湖南全明堂成套电器股份有限公司 | A kind of PT cabinet enabling auto-power-off device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102623917A (en) * | 2012-03-23 | 2012-08-01 | 广西银河迪康电气有限公司 | Air box type voltage transformer cabinet with three-position partition switch |
| US20120206886A1 (en) * | 2011-02-14 | 2012-08-16 | Murata Manufacturing Co., Ltd. | High-frequency module |
| CN202633797U (en) * | 2012-04-27 | 2012-12-26 | 山东泰开电力开关有限公司 | Enclosed voltage transformer combined electrical apparatus for 35-KV indoor substation |
| CN203367849U (en) * | 2013-07-26 | 2013-12-25 | 南通法瑞电气有限公司 | Functional potential transformer (PT) cabinet used for full-insulation ring main unit |
| CN203932788U (en) * | 2014-06-27 | 2014-11-05 | 国家电网公司 | A kind of solid insulation voltage transformer cabinet |
| CN205070286U (en) * | 2015-09-18 | 2016-03-02 | 江苏南瑞恒驰电气装备有限公司 | Distribution looped netowrk PT cabinet |
-
2015
- 2015-09-18 CN CN201510598619.1A patent/CN105207104A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120206886A1 (en) * | 2011-02-14 | 2012-08-16 | Murata Manufacturing Co., Ltd. | High-frequency module |
| CN102623917A (en) * | 2012-03-23 | 2012-08-01 | 广西银河迪康电气有限公司 | Air box type voltage transformer cabinet with three-position partition switch |
| CN202633797U (en) * | 2012-04-27 | 2012-12-26 | 山东泰开电力开关有限公司 | Enclosed voltage transformer combined electrical apparatus for 35-KV indoor substation |
| CN203367849U (en) * | 2013-07-26 | 2013-12-25 | 南通法瑞电气有限公司 | Functional potential transformer (PT) cabinet used for full-insulation ring main unit |
| CN203932788U (en) * | 2014-06-27 | 2014-11-05 | 国家电网公司 | A kind of solid insulation voltage transformer cabinet |
| CN205070286U (en) * | 2015-09-18 | 2016-03-02 | 江苏南瑞恒驰电气装备有限公司 | Distribution looped netowrk PT cabinet |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109634177A (en) * | 2018-12-17 | 2019-04-16 | 湖南全明堂成套电器股份有限公司 | A kind of PT cabinet enabling auto-power-off device |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| DD01 | Delivery of document by public notice |
Addressee: Chen Jianguo Document name: Notification of Passing Examination on Formalities |
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| DD01 | Delivery of document by public notice | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151230 |
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| RJ01 | Rejection of invention patent application after publication |