CN105374588A - Low-voltage switch with adjustable phase line - Google Patents
Low-voltage switch with adjustable phase line Download PDFInfo
- Publication number
- CN105374588A CN105374588A CN201510826550.3A CN201510826550A CN105374588A CN 105374588 A CN105374588 A CN 105374588A CN 201510826550 A CN201510826550 A CN 201510826550A CN 105374588 A CN105374588 A CN 105374588A
- Authority
- CN
- China
- Prior art keywords
- insulator foot
- contacts
- voltage switch
- fuse
- phase line
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/0072—Details of switching devices, not covered by groups H01H1/00 - H01H7/00 particular to three-phase switches
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/02—Bases, casings, or covers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/10—Adaptation for built-in fuses
Landscapes
- Fuses (AREA)
Abstract
The invention relates to the technical field of load adjustment and control of power systems, in particular to a low-voltage switch with an adjustable phase line. The low-voltage switch comprises an insulating base and an insulating rotation cover, which are in rotationally connected with each other, wherein three recessed front-end contacts are arranged at the front end of the insulating base; three recessed rear-end contacts are arranged at the rear end; the rear-end contacts are connected through a connecting conductor and extend out of rear contacts; a through hole is also formed in the bottom of the insulating base; a fixed seat is arranged at the bottom of the insulating rotation cover; a fuse is fixed in the fixed seat; lead conductors which are communicated with the front-end contacts and the rear-end contacts extend out of two ends of the fuse; a rotating shaft is also fixed at the lower part of the fixed seat; the rotating shaft on the insulating rotation cover passes through the through hole in the insulating base and is fixedly connected through nuts; and a spring which is located between the nuts and the insulating base sleeves the rotating shaft. The low-voltage switch with the adjustable phase line has the advantages of being convenient to operate, high in efficiency, good in safety and the like.
Description
Technical field
The present invention relates to power system load control technique field, be specifically related to a kind of phase line adjustable low-voltage switch.
Background technology
Three-phase load unbalance refers to that three-phase current (or voltage) amplitude is inconsistent in electric power system, and difference in magnitude exceedes prescribed limit.
In the city dweller and rural power grids electric power system of low voltage three-phase four-wire system, because electricity consumer mostly is single-phase load or single-phase mixed with three-phase load, there is difference and the difference of electricity consumption time of payload, so, in electrical network, three alternate unsymmetrical currents are objective reality, and this electricity consumption unbalance condition irregularities, also cannot predict in advance.
For three phase unbalance current, power department is mostly is at present the balanced adjustments being carried out load by artificial ascend operation, but needs to have a power failure in the process of load adjustment, and the time is long, dangerous high, uncontrollable factor of existence.
In addition, the Chinese patent open source literature that publication number is " 103166227A " discloses a kind of three-phase load unbalance adjustment switch, this switch includes air switch and is positioned at the fuse sockets in each phase line in air switch rear, this kind of switch needs when carrying out alternate adjustment first to pull down fuse, being installed to by fuse more afterwards in the fuse sockets of corresponding phase line, obviously there is complex operation, awkward defect in this kind of mode.
Summary of the invention
The balanced adjustment of the present invention's conveniently load, spy provides a kind of phase line adjustable low-voltage switch.
The present invention is achieved through the following technical solutions:
A kind of phase line adjustable low-voltage switch, includes the insulator foot and insulation rotatable cover that are rotationally connected; The front end of described insulator foot is provided with the front terminal contacts of 3 groove types, and rear end is provided with the back-end contacts of 3 groove types, and 3 back-end contacts are connected by the bonding conductor of arcuate structure and extend back contact, and the bottom of described insulator foot is also provided with through hole; The bottom of described insulation rotatable cover is provided with holder, described holder internal fixtion has fuse, the two ends of described fuse are extended with leading-in conductor, and described fuse is communicated with terminal contacts and back-end contacts before on insulator foot by leading-in conductor, and the bottom of described holder is also fixed with rotating shaft; Rotating shaft on described insulation rotatable cover is passed the through hole on insulator foot and is achieved a fixed connection by nut, described rotating shaft is set with the spring be positioned between nut and insulator foot.
Beneficial effect of the present invention is: it is when carrying out alternate adjustment, and only need rotating insulated rotatable cover that fuse just can be made to be communicated in corresponding phase line, this has the advantages such as easy to operate, efficiency is high, fail safe is good compared with traditional alternate adjustment mode.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further illustrated.
Fig. 1 is johning knot composition of the present invention.
Fig. 2 is longitdinal cross-section diagram of the present invention.
Fig. 3 is the structural representation of insulator foot.
Fig. 4 is the polycrystalline substance schematic diagram of insulation rotatable cover.
Fig. 5 is the superstructure schematic diagram of insulation rotatable cover.
Fig. 6 is A portion enlarged drawing.
In figure, terminal contacts, 3 back-end contacts, 4 bonding conductors, 5 back contacts, 6 home blocks, 7 fuses, 8 leading-in conductors, 9 insulation rotatable covers, 10 holders, 11 fusiformis handles, 12 rotating shafts, 13 nuts, 14 springs, 15 through holes, 16 inner concave arc surfaces, 17 transition cambered surfaces before 1 insulator foot, 2.
Embodiment
Accompanying drawing is a kind of specific embodiment of the present invention, and as shown in Figure 1,2,3, 4, this embodiment includes the insulator foot 1 and insulation rotatable cover 9 that are rotationally connected; The front end of described insulator foot is provided with the front terminal contacts 2 of 3 groove types, and back-end contacts 3,3 back-end contacts that rear end is provided with 3 groove types are connected by the bonding conductor 4 of arcuate structure and extend back contact 5, and the bottom of described insulator foot is also provided with through hole 15; The bottom of described insulation rotatable cover is provided with holder 10, described holder internal fixtion has fuse 7, the two ends of described fuse are extended with leading-in conductor 8, described fuse is communicated with terminal contacts and back-end contacts before on insulator foot by leading-in conductor, and the bottom of described holder is also fixed with rotating shaft 12; Rotating shaft on described insulation rotatable cover is passed the through hole on insulator foot and is achieved a fixed connection by nut 13, described rotating shaft is set with the spring 14 be positioned between nut and insulator foot.
Further, as shown in Figure 6, described front terminal contacts, back-end contacts are the groove type structure with inner concave arc surface 16, and described front terminal contacts, back-end contacts both sides are connected transition by transition cambered surface 17 with insulator foot; Terminal contacts, back-end contacts before the turnover that the leading-in conductor at fuse two ends can be smooth-going is made by above-mentioned design.
Further, as shown in Figure 5, the top of described insulation rotatable cover is provided with fusiformis handle 11, and described fusiformis handle points to consistent with the leading-in conductor on fuse, and before described fusiformis handle correspondence, one end of terminal contacts scribbles arrow mark.By above-mentioned design, the phase line that current fuse is communicated with can be judged intuitively.
Further, the outer of described insulator foot is provided with 3 attribute blocks 6 of corresponding 3 front terminal contacts, and the A phase, the B phase that described attribute block scribble respectively correspondence mark with C phase.
The present invention is installed on the rear of air switch in circuit, it can according to the concrete condition of three-phase load in low voltage electric network in region, select a certain phase line powering, when needs adjustment power supply, first cut off air switch, more rotating insulated rotatable cover makes fuse be communicated in corresponding going up mutually just can to complete adjustment, adjust again after no longer needing to have a power failure to whole region, coverage is very limited, ensure that most power quality not needing the area adjusted.
Claims (4)
1. a phase line adjustable low-voltage switch, is characterized in that: include the insulator foot (1) and insulation rotatable cover (9) that are rotationally connected; The front end of described insulator foot is provided with the front terminal contacts (2) of 3 groove types, rear end is provided with the back-end contacts (3) of 3 groove types, 3 back-end contacts are connected by the bonding conductor (4) of arcuate structure and extend back contact (5), and the bottom of described insulator foot is also provided with through hole (15); The bottom of described insulation rotatable cover is provided with holder (10), described holder internal fixtion has fuse (7), the two ends of described fuse are extended with leading-in conductor (8), described fuse is communicated with terminal contacts and back-end contacts before on insulator foot by leading-in conductor, and the bottom of described holder is also fixed with rotating shaft (12); Rotating shaft on described insulation rotatable cover is also achieved a fixed connection by nut (13) through the through hole on insulator foot, described rotating shaft is set with the spring (14) be positioned between nut and insulator foot.
2. phase line adjustable low-voltage switch according to claim 1, it is characterized in that: described front terminal contacts, back-end contacts are the groove type structure with inner concave arc surface (16), described front terminal contacts, back-end contacts both sides are connected transition by transition cambered surface (17) with insulator foot.
3. phase line adjustable low-voltage switch according to claim 1, it is characterized in that: the top of described insulation rotatable cover is provided with fusiformis handle (11), described fusiformis handle points to consistent with the leading-in conductor on fuse, and before described fusiformis handle correspondence, one end of terminal contacts scribbles arrow mark.
4. phase line adjustable low-voltage switch according to claim 1, is characterized in that: the outer of described insulator foot is provided with 3 attribute blocks (6) of corresponding 3 front terminal contacts, described attribute block scribbles respectively corresponding A phase, B phase marks with C phase.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510826550.3A CN105374588A (en) | 2015-11-25 | 2015-11-25 | Low-voltage switch with adjustable phase line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510826550.3A CN105374588A (en) | 2015-11-25 | 2015-11-25 | Low-voltage switch with adjustable phase line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105374588A true CN105374588A (en) | 2016-03-02 |
Family
ID=55376687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510826550.3A Pending CN105374588A (en) | 2015-11-25 | 2015-11-25 | Low-voltage switch with adjustable phase line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105374588A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108666165A (en) * | 2018-05-18 | 2018-10-16 | 国网山东省电力公司阳谷县供电公司 | Novel phasing switch for adjusting low-voltage three-phase load |
| CN109217340A (en) * | 2018-09-19 | 2019-01-15 | 深圳友讯达科技股份有限公司 | Three-phase equilibrium regulating device, system and method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1780084A1 (en) * | 2005-10-31 | 2007-05-02 | Toyo Denso Kabushiki Kaisha | Switch control device for vehicle |
| CN202353228U (en) * | 2011-10-18 | 2012-07-25 | 东乡县供电有限责任公司 | Three-phase unbalanced load adjustment device for 0.4kV power distribution area |
| CN103166227A (en) * | 2011-12-14 | 2013-06-19 | 河南省电力公司新乡供电公司 | Three-phase load unbalance adjustment switch |
| CN104934994A (en) * | 2015-07-01 | 2015-09-23 | 国家电网公司 | Low-voltage phase-change switch |
| CN205248134U (en) * | 2015-11-25 | 2016-05-18 | 国网山东省电力公司菏泽供电公司 | Low tension switchgear with adjustable phase line |
-
2015
- 2015-11-25 CN CN201510826550.3A patent/CN105374588A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1780084A1 (en) * | 2005-10-31 | 2007-05-02 | Toyo Denso Kabushiki Kaisha | Switch control device for vehicle |
| EP1780084B1 (en) * | 2005-10-31 | 2008-05-28 | Toyo Denso Kabushiki Kaisha | Switch control device for vehicle |
| CN202353228U (en) * | 2011-10-18 | 2012-07-25 | 东乡县供电有限责任公司 | Three-phase unbalanced load adjustment device for 0.4kV power distribution area |
| CN103166227A (en) * | 2011-12-14 | 2013-06-19 | 河南省电力公司新乡供电公司 | Three-phase load unbalance adjustment switch |
| CN104934994A (en) * | 2015-07-01 | 2015-09-23 | 国家电网公司 | Low-voltage phase-change switch |
| CN205248134U (en) * | 2015-11-25 | 2016-05-18 | 国网山东省电力公司菏泽供电公司 | Low tension switchgear with adjustable phase line |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108666165A (en) * | 2018-05-18 | 2018-10-16 | 国网山东省电力公司阳谷县供电公司 | Novel phasing switch for adjusting low-voltage three-phase load |
| CN108666165B (en) * | 2018-05-18 | 2019-10-25 | 国网山东省电力公司阳谷县供电公司 | For adjusting the novel phasing switch of low-voltage three-phase load |
| CN109217340A (en) * | 2018-09-19 | 2019-01-15 | 深圳友讯达科技股份有限公司 | Three-phase equilibrium regulating device, system and method |
| CN109217340B (en) * | 2018-09-19 | 2022-02-15 | 深圳友讯达科技股份有限公司 | Three-phase balance adjusting device, system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160302 |
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| RJ01 | Rejection of invention patent application after publication |