CN202601430U - Switch of on-load capacity regulating transformer - Google Patents
Switch of on-load capacity regulating transformer Download PDFInfo
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- CN202601430U CN202601430U CN 201220138920 CN201220138920U CN202601430U CN 202601430 U CN202601430 U CN 202601430U CN 201220138920 CN201220138920 CN 201220138920 CN 201220138920 U CN201220138920 U CN 201220138920U CN 202601430 U CN202601430 U CN 202601430U
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Abstract
The utility model discloses a switch of an on-load capacity regulating transformer. A contact system comprises a high-voltage input fixed contact, a high-voltage input moving contact, a high-voltage fixed contact and a high-voltage moving contact. A corner connection high-voltage fixed contact and a star connection high-voltage fixed contact are arranged on the rotation path of the high-voltage moving contact; each of the high-voltage input moving contact and the high-voltage moving contact comprises a main contact and an arc-shaped contact; a transition moving contact is arranged between the high-voltage input moving contact and the high-voltage moving contact; the high-voltage moving contact, the transition moving contact and the high-voltage input moving contact are arranged in upper, middle and lower layers along the axial direction of a main shaft; an insulating cylinder is provided with a transition fixed contact; the main contact of the high-voltage moving contact is connected to the main contact of the high-voltage input moving contact through a conductive connecting piece; and the arc-shaped contact of the high-voltage moving contact is in series with the transition moving contact and a transition resistor through the conductive connecting piece, and then is connected to the arc-shaped contact of the high-voltage input moving contact. According to the technical scheme, a plurality of breakers in series connection are formed through the arrangement of the transition contacts, and thereby a high load switching capability and an high overpressure resistant grade are possessed.
Description
Technical field
The utility model belongs to the transformer switch field, relates in particular to a kind of loaded capacity-regulated transformer switch.
Background technology
Electric energy will repeatedly boost through power transformer from the power plant to user, step-down.Though the efficient of transformer own is very high, the factor amount is many, capacity is big, and its total losses are still very big.According to statistics, the total losses of China's transformer account for 10% of system's energy output; And account for electrical network total losses 60%～65% in, in the low voltage electric network loss, 70% loss is arranged approximately on distribution transformer.If transformer loss can reduce by 1%, just can practice thrift the over ten billion degree every year.Because the seasonality of rural power grids load is strong, the load peak-valley difference is big, causes the loss ratio of present China rural power grids distribution transformer bigger, causes a large amount of waste of power resources.
Loaded capacity-regulated transformer is a kind of transformer with two kinds of rated capacities of size; According to payload; Utilize special accent to hold the connected mode that switch (the branch no-load is transferred appearance and loaded capacity-regulated) comes the conversion winding; Realize the switching (transformer high-pressure side winding when big capacity is the corner connection operation, is that star connects operation during low capacity) between two kinds of different capabilities of transformer.The no-load loss of capacitance-adjustable transformer and load loss are all lower, and especially the total losses during light running are more much lower than the total losses of same capability other types transformer.Little, the online controlled ability of no load capacitance-adjustable transformer capacity is low, can not charged pondage, generally only carry out seasonality and regulate, and can have influence on user's power supply reliability when regulating.Loaded capacity-regulated transformer can effectively solve and eliminate the problems referred to above and the limitation of existing no load capacitance-adjustable transformer, and ability auto-real-time monitoring and control are carried out capacity regulating according to actual load size reasonable ground, thereby further enlarged the scope of application of capacitance-adjustable transformer.Transformer has the task switching that will accomplish Transformer Winding when carrying, and technical difficult points is the problem of high-pressure side contact reliable blow-out in the handoff procedure of star angle.
Summary of the invention
In order to solve above-mentioned technical problem; The purpose of the utility model provides a kind of loaded capacity-regulated transformer switch; Thereby high-pressure section forms a plurality of series connection fractures through transition contact is set between high pressure input contact and high-voltage contact; So higher switched voltage just by mean allocation to by moving contact with decide a plurality of fractures that contact constitutes, each fracture voltage all is lower than blowout voltage, and switch has higher have year a switching capability and a voltage withstand class.
In order to reach above-mentioned purpose; Technical scheme below the utility model has adopted: loaded capacity-regulated transformer switch; Comprise motor, quick mechanism, insulating cylinder, main shaft and contact system; Said contact system comprises low-pressure section and high-pressure section; Said contact system comprises the moving contact that is installed on the main shaft and is installed in the contact of deciding on the insulating cylinder; Said contact system high-pressure section is divided into three-phase; Whenever, comprise that mutually contact decide in high pressure input, high pressure is imported moving contact, high compression set contact and high pressure moving contact; Be furnished with a high compression set contact of corner connection that is used for Transformer Winding corner connection operation and one on the rotation path of the high pressure moving contact of every phase and be used for the star that the Transformer Winding star connects operation and connect high compression set contact, high pressure moving contact and high pressure input moving contact all comprise the arcing contact that the main contact and that when Transformer Winding is worked, is connected is connected when Transformer Winding is switched, and high pressure moving contact and high pressure are imported between the moving contact and be provided with the transition moving contact; High pressure moving contact, transition moving contact and high pressure input moving contact axially divide upper, middle and lower-ranking to arrange along main shaft; Insulating cylinder is provided with the transition that is complementary with the transition moving contact and decides contact, and the main contact of high pressure moving contact is connected through the main contact of conducting connecting part with high pressure input moving contact, and the arcing contact of high pressure moving contact passes through to be connected with the arcing contact of high pressure input moving contact behind conducting connecting part series connection transition moving contact, the transition resistance.
As preferably; Said transition moving contact comprises a main contact and an arcing contact; The main contact of high pressure moving contact is connected through conducting connecting part and is connected with the main contact of high pressure input moving contact behind the main contact of said transition moving contact, and the arcing contact of high pressure moving contact is connected through the arcing contact that conducting connecting part is connected behind the arcing contact, transition resistance of said transition moving contact with high pressure is imported moving contact.
The utility model is owing to adopted above technical scheme; Thereby high-pressure section forms a plurality of series connection fractures through the transition contact that axis direction is set between high pressure input contact and high-voltage contact; So higher switched voltage just by mean allocation to by moving contact with decide a plurality of fractures that contact constitutes; Each fracture voltage all is lower than blowout voltage, and switch has the higher switching capability and the voltage withstand class of carrying that have.Following three layers of layout during high pressure input contact, transition contact and high-voltage contact are divided upward, structure is simpler, reliable, easy for installation, the withstand voltage better effects if of blow-out.
Description of drawings
Fig. 1 is the structural representation (corner connection operating state) of embodiment 1;
Fig. 2 is the A-A cutaway view of Fig. 1;
Fig. 3 is the B-B cutaway view of Fig. 1;
Fig. 4 is the C-C cutaway view of Fig. 1;
Fig. 5 is the D-D cutaway view of Fig. 1;
Fig. 6 is the structural representation (switching state) of embodiment 1;
Fig. 7 is the E-E cutaway view of Fig. 6;
Fig. 8 is the F-F cutaway view of Fig. 6;
Fig. 9 is the G-G cutaway view of Fig. 6;
Figure 10 is the H-H cutaway view of Fig. 6;
Figure 11 is the switching principle figure of the utility model.
Embodiment
Below in conjunction with accompanying drawing the embodiment of the utility model is done a detailed explanation.
Embodiment 1:
Like Fig. 1, loaded capacity-regulated transformer switch shown in Figure 6; Comprise housing 1, motor 2, quick mechanism 3, insulating cylinder 8, main shaft 4 and contact system; Said contact system comprises low-pressure section and high-pressure section; Said contact system comprises the moving contact that is installed on the main shaft 4 and is installed in the contact of deciding on the insulating cylinder 8; Said contact system low-pressure section is divided into three-phase (A phase, B phase, C phase); Hang down compression set contact 5, low pressure moving contact 6 and low resistance 7 every comprising mutually; Said contact system high-pressure section is divided into three-phase (A phase, B phase, C phase); Whenever, comprise that mutually contact 12 decide in high pressure input, high pressure is imported moving contact 16, high compression set contact 10 and high pressure moving contact 9; Like Fig. 2, Fig. 4, Fig. 7 and shown in Figure 9; Be furnished with a high compression set contact 101 of corner connection that is used for Transformer Winding corner connection operation on the rotation path of the high pressure moving contact 9 of A phase and be used for the star that the Transformer Winding star connects operation and connect high compression set contact 102, be furnished with a high compression set contact 103 of corner connection that is used for Transformer Winding corner connection operation and one on the rotation path of the high pressure moving contact 9 of B phase and be used for the star that the Transformer Winding star connects operation and connect high compression set contact 104, be furnished with one on the rotation path of the high pressure moving contact 9 of C phase and be used for the high compression set contact 105 of corner connection that the Transformer Winding corner connection moves and one and be used for the star that the Transformer Winding star connects operation and connect high compression set contact 106 with one; Like Fig. 3, Fig. 5, Fig. 8, shown in Figure 10; The high pressure moving contact 9 of A phase comprises the arcing contact 92 that the main contact 91 and of a connection when Transformer Winding is worked is connected when Transformer Winding is switched; The high pressure input moving contact 16 of A phase comprises the arcing contact 162 that the main contact 161 and of a connection when Transformer Winding is worked is connected when Transformer Winding is switched; The high pressure moving contact 9 of B phase comprises the arcing contact 94 that the main contact 93 and of a connection when Transformer Winding is worked is connected when Transformer Winding is switched; The high pressure input moving contact 16 of B phase comprises the arcing contact 164 that the main contact 163 and of a connection when Transformer Winding is worked is connected when Transformer Winding is switched; The high pressure moving contact 9 of C phase comprises the arcing contact 96 that the main contact 95 and of a connection when Transformer Winding is worked is connected when Transformer Winding is switched, the high pressure input moving contact 16 of C phase comprises the arcing contact 166 that the main contact 165 and of a connection when Transformer Winding is worked is connected when Transformer Winding is switched; Be provided with transition moving contact 14 between high pressure moving contact 9 and the high pressure input moving contact 16; High pressure moving contact 9, transition moving contact 14 and high pressure input moving contact 16 axially divide upper, middle and lower-ranking to arrange that insulating cylinder 8 is provided with the transition that is complementary with transition moving contact 14 and decides contact 11 along main shaft 4; The main contact of high pressure moving contact 9 is connected through the main contact of conducting connecting part with high pressure input moving contact 16, and the arcing contact of high pressure moving contact 9 is connected with the arcing contact of high pressure input moving contact 16 through conducting connecting part series connection transition moving contact 14, transition resistance 15 backs.
In the present embodiment; Said transition moving contact 14 comprises a main contact and an arcing contact; The main contact of high pressure moving contact 9 is connected through conducting connecting part and is connected with the main contact of high pressure input moving contact 16 behind the main contact of said transition moving contact 14, and the arcing contact of high pressure moving contact 9 is connected with the arcing contacts that high pressure is imported moving contact 16 through connect arcing contact, transition resistance 15 backs of said transition moving contact 14 of conducting connecting part.Above-mentioned conducting connecting part is a metal connecting sheet 13.Like Fig. 3, Fig. 5, Fig. 8, shown in Figure 10; The input of the high pressure of A phase decide contact 12 and is comprised that the input of corner connection high pressure decide contact 121 and star and connects high pressure input and decide contact 122; The input of the corner connection high pressure of A phase decide contact 121 and is connect high pressure input through conductive connecting piece 171 and star and decide contact 122 and be connected; The input of the high pressure of B phase decide contact 12 and is comprised that the input of corner connection high pressure decide contact 123 and star and connects high pressure input and decide contact 124; The input of the corner connection high pressure of B phase decide contact 123 and is connect high pressure input through conductive connecting piece 172 and star and decide contact 124 and be connected; The input of the high pressure of C phase decide contact 12 and is comprised that the input of corner connection high pressure decide contact 125 and connects the high pressure input with star and decide contact 126, and the input of the corner connection high pressure of C phase is decided contact 125 and connect high pressure input through conductive connecting piece 173 and star and decide contact 126 and be connected.The Transformer Winding star connects, the corner connection switching principle is shown in figure 11, and solid line is corner connection (D connects), and dotted line is that star connects (Y connects).
Claims (2)
1. loaded capacity-regulated transformer switch; Comprise motor (2), quick mechanism (3), insulating cylinder (8), main shaft (4) and contact system; Said contact system comprises low-pressure section and high-pressure section; Said contact system comprises the moving contact that is installed on the main shaft (4) and is installed in the contact of deciding on the insulating cylinder (8); Said contact system high-pressure section is divided into three-phase; Whenever, comprise that mutually contact (12) decide in high pressure input, high pressure is imported moving contact (16), high compression set contact (10) and high pressure moving contact (9); It is characterized in that; Being furnished with a high compression set contact of corner connection that is used for Transformer Winding corner connection operation and one on the rotation path of the high pressure moving contact (9) of every phase is used for the star that the Transformer Winding star connects operation and connects high compression set contact; High pressure moving contact (9) and high pressure input moving contact (16) all comprises the arcing contact that the main contact and that when Transformer Winding is worked, is connected is connected when Transformer Winding is switched; Be provided with transition moving contact (14) between high pressure moving contact (9) and the high pressure input moving contact (16), high pressure moving contact (9), transition moving contact (14) and high pressure input moving contact (16) axially divide upper, middle and lower-ranking to arrange that insulating cylinder (8) is provided with the transition that is complementary with transition moving contact (14) and decides contact (11) along main shaft (4); The main contact of high pressure moving contact (9) is connected through the main contact of conducting connecting part with high pressure input moving contact (16), and the arcing contact of high pressure moving contact (9) is connected with the arcing contact of high pressure input moving contact (16) through conducting connecting part series connection transition moving contact (14), transition resistance (15) back.
2. loaded capacity-regulated transformer switch according to claim 1; It is characterized in that; Said transition moving contact (14) comprises a main contact and an arcing contact; The main contact of high pressure moving contact (9) is connected through conducting connecting part and is connected with the main contact of high pressure input moving contact (16) behind the main contact of said transition moving contact (14), and the arcing contact of high pressure moving contact (9) is connected with the arcing contact that high pressure is imported moving contact (16) through connect arcing contact, transition resistance (15) back of said transition moving contact (14) of conducting connecting part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220138920 CN202601430U (en) | 2012-04-05 | 2012-04-05 | Switch of on-load capacity regulating transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220138920 CN202601430U (en) | 2012-04-05 | 2012-04-05 | Switch of on-load capacity regulating transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202601430U true CN202601430U (en) | 2012-12-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220138920 Ceased CN202601430U (en) | 2012-04-05 | 2012-04-05 | Switch of on-load capacity regulating transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202601430U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103646796A (en) * | 2013-12-30 | 2014-03-19 | 辽宁金立电力电器有限公司 | On-load capacity-modulating switching contact assembly |
| CN105575633A (en) * | 2016-02-05 | 2016-05-11 | 浙江宝威电气有限公司 | Transformer on-load adjustable capacity switch easy in realization |
-
2012
- 2012-04-05 CN CN 201220138920 patent/CN202601430U/en not_active Ceased
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103646796A (en) * | 2013-12-30 | 2014-03-19 | 辽宁金立电力电器有限公司 | On-load capacity-modulating switching contact assembly |
| CN103646796B (en) * | 2013-12-30 | 2016-04-06 | 辽宁金立电力电器有限公司 | A kind of loaded capacity-regulated switch contact assembly |
| CN105575633A (en) * | 2016-02-05 | 2016-05-11 | 浙江宝威电气有限公司 | Transformer on-load adjustable capacity switch easy in realization |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: ZHEJIANG TENGLONG APPLIANCE CO., LTD. Free format text: FORMER NAME: SANMEN TENGLONG ELECTRIC APPLIANCE CO., LTD., ZHEJIANG |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 317100, No. 263, Yang Yang Road, sea town, three counties, Taizhou, Zhejiang Patentee after: Zhejiang Tenglong Electrical Apparatus Co., Ltd. Address before: 317100, No. 263, Yang Yang Road, sea town, three counties, Taizhou, Zhejiang Patentee before: Sanmen Tonglong Electrical Equipment Co., Ltd., Zhejiang Prov. |
|
| IW01 | Full invalidation of patent right | ||
| IW01 | Full invalidation of patent right |
Decision date of declaring invalidation: 20130703 Decision number of declaring invalidation: 20923 Granted publication date: 20121212 |