CN202474549U - Distribution and transformation Low-voltage protection switch box - Google Patents
Distribution and transformation Low-voltage protection switch box Download PDFInfo
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- CN202474549U CN202474549U CN2012200927184U CN201220092718U CN202474549U CN 202474549 U CN202474549 U CN 202474549U CN 2012200927184 U CN2012200927184 U CN 2012200927184U CN 201220092718 U CN201220092718 U CN 201220092718U CN 202474549 U CN202474549 U CN 202474549U
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Abstract
The utility model discloses a distribution and transformation low-voltage protection switch box. The distribution and transformation low-voltage protection switch box comprises a box body which is provided with a knife fuse switch chamber and a capacitor control chamber; lighting arresters, knife fuse switches and current transformers are arranged in the knife fuse switch chamber; wiring terminals, intelligent power capacitors, a reactive power controller and an active power electric energy meter are arranged in the capacitor control chamber; the current transformers are electrically connected with the wiring terminals; the wiring terminals are provided with ports which are electrically connected with the active power electric energy meter and the reactive power controller respectively; the reactive power controller is connected with the active power electric energy meter; the reactive power controller is electrically connected with the intelligent power capacitors; the intelligent power capacitors are electrically connected with three-phase output ends of the transformer. The distribution and transformation low-voltage protection switch box is intelligent distribution equipment integrating the functions of over-current protection, lightning stroke protection and reactive power compensation, the functions of a low-voltage fuse wire box and a reserved load control device and the like, applicable to a three-phase four-wire neutral-point solid ground low-voltage power grid and is used for preventing faults such as over current, short circuit, overvoltage and open phase of circuits or electric equipment.
Description
Technical field
The utility model relates to a kind of distribution transforming switch-box, particularly a kind of outdoor distribution transforming low-voltage protective switch case.
Background technology
Distribution transforming low-voltage protective switch case is that the outdoor bar of low-voltage distribution electrical network becomes one of equipment important in the device; It is used for exchanging the electric power system of 50HZ, rated voltage 380V; Be installed between distribution transformer low pressure outlet side and the low voltage electric network; Both can make the short circuit of low voltage electric network and the protective device of overload, and can realize the input of low voltage electric network and cut off operation through operation its " branch ", " closing " again.In electric power system distribution transforming equipment; Though outdoor low voltage distribution transforming switch-box manufacturer is a lot; The distribution transforming switch-box of producing is roughly the same; All exist the component quality of defective and institute's type selecting in the design poor, cause easily that the temperature inside the box is too high, the contact of current-carrying part easily heating cause the fault generation of burning, have much room for improvement at design aspect.
Therefore need a kind of reliability height and operation maintenance distribution transforming low-voltage protective switch case easily.
The utility model content
In view of this, the utility model technical problem to be solved provides a kind of reliability height and operation maintenance distribution transforming low-voltage protective switch case easily.
The utility model is realized through following technical scheme:
The distribution transforming low-voltage protective switch case that the utility model provides comprises casing, and said casing comprises switch with knifeshaped fuse chamber and electric capacity control room; Indoor lightning arrester F, switch with knifeshaped fuse HR, the current transformer T of being provided with of said switch with knifeshaped fuse; One end of said switch with knifeshaped fuse is electrically connected with the transformer three-phase output end; The other end of said switch with knifeshaped fuse is that three-phase output end is electrically connected with low voltage electric network; Said current transformer is arranged at the transformer three-phase output end, said lightning arrester one end ground connection, and the other end of lightning arrester is electrically connected with the switch with knifeshaped fuse input; Said electric capacity control room set inside has binding post JX, intellectual power capacitor C, reactive controller TDS, active electric energy meter WH; Said current transformer is electrically connected with binding post; Be respectively arranged with the port that is electrically connected with active electric energy meter and reactive controller on the said binding post; Said reactive controller is connected with merit electric energy meter WH, and said reactive controller is electrically connected with intellectual power capacitor, and said intellectual power capacitor is electrically connected with the transformer three-phase output end.
Further, all be provided with current transformer on each phase line of said transformer three-phase output end.
Further, said transformer three-phase output end is provided with lightning arrester.
Further, also comprise load management terminal, said load management terminal is electrically connected with binding post.
Further, also comprise the distribution load instrument for measuring and recording, said distribution load instrument for measuring and recording is connected with current transformer.
Further, also be provided with on the said casing be connected with box sealing wear the housing-case pipe, device is electrically connected said transformer three-phase output end through wearing in housing-case pipe and the casing respectively.
Further, also be provided with the installation suspension ring that are used for fixing casing on the said casing.
The beneficial effect of the utility model is: devices such as the distribution transforming low-voltage protective switch case configuration low pressure parallel-moving type isolating switch that the utility model provides, automatic integratedization of low pressure reactive power compensator, low voltage surge arrester, current transformer are that functions such as collection low-tension fuse case, overcurrent protection, lightning strike protection, reactive power compensation, the negative control of reservation device are the intelligent power distribution equipment of one.Be applicable to the low voltage electric network of three-phase and four-line neutral-point solid ground, faults such as the overcurrent of circuit or power consumption equipment, short circuit, overvoltage, phase shortage are protected that the person is got an electric shock also can provide indirect protection, operation maintenance is convenient, and is aesthetic in appearance generous.
Other advantages, target and the characteristic of the utility model will be set forth in specification subsequently to a certain extent; And to a certain extent; Based on being conspicuous to those skilled in the art, perhaps can from the practice of the utility model, obtain instruction to investigating of hereinafter.The target of the utility model and other advantages can realize and obtain through following specification and claims.
Description of drawings
For the purpose, technical scheme and the advantage that make the utility model is clearer, will combine accompanying drawing that the utility model is done further to describe in detail below, wherein:
The distribution transforming low-voltage protective switch case switch with knifeshaped fuse chamber sketch map that Fig. 1 provides for the utility model embodiment;
The distribution transforming low-voltage protective switch case electric capacity control room sketch map that Fig. 2 provides for the utility model embodiment;
The distribution transforming low-voltage protective switch case electrical connection diagram that Fig. 3 provides for the utility model embodiment.
Among the figure; 1 expression casing, expression switch with knifeshaped fuse chambers 2,3 expression electric capacity control rooms, 4 expression lightning arrester F, 5 expression switch with knifeshaped fuse HR, 6 expression current transformer T, the intellectual power capacitor C of 7 expressions, 8 expression reactive controller TDS, 9 expression active electric energy meter WH, 10 expression load management terminals.
Embodiment
Below will be with reference to accompanying drawing, the preferred embodiment of the utility model is carried out detailed description.Should be appreciated that preferred embodiment has been merely explanation the utility model, rather than in order to limit the protection range of the utility model.
Fig. 1 does, and is as shown in the figure: the distribution transforming low-voltage protective switch case that the utility model provides, comprise casing 1, and said casing 1 comprises switch with knifeshaped fuse chamber 2 and electric capacity control room 3; Lightning arrester F4, switch with knifeshaped fuse HR5, current transformer T6 are set in the said switch with knifeshaped fuse chamber 2; One end of said switch with knifeshaped fuse 2 is electrically connected with the transformer three-phase output end; The other end of said switch with knifeshaped fuse 2 is that three-phase output end is electrically connected with low voltage electric network; Said current transformer T6 is arranged at the transformer three-phase output end, said lightning arrester F4 one end ground connection, and the other end of lightning arrester F4 is electrically connected with switch with knifeshaped fuse HR5 input; The switch with knifeshaped fuse HR5 that the utility model provides comprises fuse holder and parallel-moving type movable blades; Whole parallel-moving type movable blades three synchronised move; When changing cartridge fuse-link, pile crown and the live part of its fuse holder are thoroughly isolated, on the structure not only simply but also increased the fail safe that operating personnel change fuse; The pass of parallel-moving type isolating switch, closing operation use the detached type handle outside case, to carry out, and make the operator avoid having guaranteed operator's personal safety in the face of electric arc; Simultaneously, the running status of switch has branch, closing pointer indication outside case.Load disjunction arc extinction performance is reliable.Inner parallel-moving type isolating switch is equipped with energy storage device, and the speed of cut-offfing is fast, cooperates grid formula arc-extinguish chamber, the arc extinction performance when more effectively having improved separating brake.
Said electric capacity control room set inside has binding post JX, intellectual power capacitor C7, reactive controller TDS8, active electric energy meter WH9; Said current transformer is electrically connected with binding post; Be respectively arranged with the port that is electrically connected with active electric energy meter and reactive controller on the said binding post; Said reactive controller is connected with merit electric energy meter WH, and said reactive controller is electrically connected with intellectual power capacitor, and said intellectual power capacitor is electrically connected with the transformer three-phase output end.
All be provided with current transformer on each phase line of said transformer three-phase output end.
Said transformer three-phase output end is provided with lightning arrester.
Also comprise load management terminal 10, said load management terminal 10 be electrically connected with binding post.
Also comprise the distribution load instrument for measuring and recording, said distribution load instrument for measuring and recording is connected with current transformer, and three-phase load is monitored.
Also be provided with on the said casing be connected with box sealing wear the housing-case pipe, device is electrically connected said transformer three-phase output end through wearing in housing-case pipe and the casing respectively, can avoid the infiltration of outdoor rainwater effectively.
Also be provided with the installation suspension ring that are used for fixing casing on the said casing, the case top is provided with 4 suspension ring and is convenient to the lifting installation.Compact integral structure, volume is little, in light weight,
Explanation is at last; Above embodiment is only unrestricted in order to the technical scheme of explanation the utility model; Although the preferred embodiment through with reference to the utility model is described the utility model; But those of ordinary skill in the art should be appreciated that and can make various changes to it in form with on the details, and the spirit and the scope of the utility model that does not depart from appended claims and limited.
Claims (7)
1. distribution transforming low-voltage protective switch case, it is characterized in that: comprise casing, said casing comprises switch with knifeshaped fuse chamber and electric capacity control room; Indoor lightning arrester F, switch with knifeshaped fuse HR, the current transformer T of being provided with of said switch with knifeshaped fuse; One end of said switch with knifeshaped fuse is electrically connected with the transformer three-phase output end; The other end of said switch with knifeshaped fuse is that three-phase output end is electrically connected with low voltage electric network; Said current transformer is arranged at the transformer three-phase output end, said lightning arrester one end ground connection, and the other end of lightning arrester is electrically connected with the switch with knifeshaped fuse input; Said electric capacity control room set inside has binding post JX, intellectual power capacitor C, reactive controller TDS, active electric energy meter WH; Said current transformer is electrically connected with binding post; Be respectively arranged with the port that is electrically connected with active electric energy meter and reactive controller on the said binding post; Said reactive controller is connected with active electric energy meter WH, and said reactive controller is electrically connected with intellectual power capacitor, and said intellectual power capacitor is electrically connected with the transformer three-phase output end.
2. distribution transforming low-voltage protective switch case according to claim 1 is characterized in that: all be provided with current transformer on each phase line of said transformer three-phase output end.
3. distribution transforming low-voltage protective switch case according to claim 2 is characterized in that: said transformer three-phase output end is provided with lightning arrester.
4. distribution transforming low-voltage protective switch case according to claim 3 is characterized in that: also comprise load management terminal, said load management terminal is electrically connected with binding post.
5. distribution transforming low-voltage protective switch case according to claim 4 is characterized in that: also comprise the distribution load instrument for measuring and recording, said distribution load instrument for measuring and recording is connected with current transformer.
6. distribution transforming low-voltage protective switch case according to claim 5 is characterized in that: also be provided with on the said casing be connected with box sealing wear the housing-case pipe, device is electrically connected said transformer three-phase output end through wearing in housing-case pipe and the casing respectively.
7. distribution transforming low-voltage protective switch case according to claim 6 is characterized in that: also be provided with the installation suspension ring that are used for fixing casing on the said casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200927184U CN202474549U (en) | 2012-03-13 | 2012-03-13 | Distribution and transformation Low-voltage protection switch box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200927184U CN202474549U (en) | 2012-03-13 | 2012-03-13 | Distribution and transformation Low-voltage protection switch box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202474549U true CN202474549U (en) | 2012-10-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200927184U Expired - Lifetime CN202474549U (en) | 2012-03-13 | 2012-03-13 | Distribution and transformation Low-voltage protection switch box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202474549U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103296581A (en) * | 2013-04-25 | 2013-09-11 | 国家电网公司 | Electronic type low-voltage fuse box adopting nylon sliding block |
-
2012
- 2012-03-13 CN CN2012200927184U patent/CN202474549U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103296581A (en) * | 2013-04-25 | 2013-09-11 | 国家电网公司 | Electronic type low-voltage fuse box adopting nylon sliding block |
| CN103296581B (en) * | 2013-04-25 | 2016-03-30 | 国家电网公司 | A kind of electronic low pressure fuse box adopting nylon slide block |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121003 |
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| CX01 | Expiry of patent term |