CN201877994U - Structure for connecting secondary sides with copper bars in cascaded high-voltage high-power frequency converter - Google Patents
Structure for connecting secondary sides with copper bars in cascaded high-voltage high-power frequency converter Download PDFInfo
- Publication number
- CN201877994U CN201877994U CN2010205672407U CN201020567240U CN201877994U CN 201877994 U CN201877994 U CN 201877994U CN 2010205672407 U CN2010205672407 U CN 2010205672407U CN 201020567240 U CN201020567240 U CN 201020567240U CN 201877994 U CN201877994 U CN 201877994U
- Authority
- CN
- China
- Prior art keywords
- copper bar
- transformer
- secondary side
- power frequency
- tandem type
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Inverter Devices (AREA)
Abstract
The utility model discloses a structure for connecting secondary sides with copper bars in a cascaded high-voltage high-power frequency converter, which mainly comprises an inverter cabinet (1), a transformer cabinet (2), a power unit (3) and a phase-shifting transformer (4), wherein the power unit (3) and the phase-shifting transformer (4) are respectively mounted in the inverter cabinet (1) and the transformer cabinet (2); and secondary sides of the power unit (3) and the phase-shifting transformer (4) are connected via copper bars (5). By adopting the structure provided by the utility model, the manufacture cost can be reduced, the LCE (Low-Carbon Economy) requirement is met, and the property is reliable.
Description
Technical field
The utility model relates to voltage-source type tandem type high-voltage high-power frequency transformator, specifically is meant the full copper bar syndeton of a kind of tandem type high-voltage high-power frequency transformator secondary side.
Background technology
Frequency converter general arrangement schematic as shown in Figure 1, the power major loop of voltage-source type tandem type high-voltage high-power frequency transformator, the main connection by the secondary side cable with phase shifting transformer by the power cell among Fig. 1 combines.
The cable of existing frequency converter connects the integral arrangement structure chart as shown in Figure 2, power cell and phase shifting transformer are installed in respectively among inverter cabinet and the transformer case, between phase shifting transformer secondary side and the power cell, according to the output voltage difference, use the high-tension cable of 45～108 6KV or 10KV to connect; And according to the rated power of frequency converter, the cable of institute's adapted is selected the sectional area of wire of different size for use.Above method of attachment all extensively applies to voltage-source type tandem type high voltage converter field.
There is following problem in above-mentioned method of attachment:
(a) because high-tension cable quantity is many, each power cell needs 3, and will be connected to the inverter cabinet from transformer case, is difficult to arrange, generally can only take colligation, stacking method;
(b) jumbo high voltage converter cable size is thick, and bending radius is big, need occupy a large amount of valuable spaces of high voltage converter;
(c) specification of the specification of cable and frequency converter does not match, and causes the copper material waste easily;
(d) one mutually in, the voltage difference between two adjacent power cells is the 690V(AC value) see Fig. 1, and current stacking method must use the high-tension cable of 6KV or 10KV to connect, and in fact exists huge waste;
(e) frequency converter is transported to user's frequency converter installation site from manufacturing site location, needs the repeated disassembled and assembled high-tension cable, except the waste that causes manpower and materials, easily make high-tension cable injured, increased insecure factor at the terminal root.
To sum up analyze, current use full high voltage cable carries out the method for attachment of tandem type high voltage converter secondary side, exists wasting phenomenon, does not meet the requirement of current low-carbon economy, and is also unreliable.
The utility model content
The purpose of this utility model is to overcome the shortcoming and defect of above-mentioned prior art, provides a kind of and reduce manufacturing cost, meets the full copper bar syndeton of tandem type high-voltage high-power frequency transformator secondary side of low-carbon economy requirement, dependable performance.
The purpose of this utility model is achieved through the following technical solutions: the full copper bar syndeton of tandem type high-voltage high-power frequency transformator secondary side, mainly by inverter cabinet, transformer case and be installed in the inverter cabinet respectively and the power cell and the phase shifting transformer of transformer case inside constitute, link to each other by copper bar between described power cell and the phase shifting transformer secondary side.
The inside of described inverter cabinet and transformer case all is equipped with insulating support, copper bar is fixed on the insulating support, and copper bar preferentially adopts the insulation anchor clamps to be fixed on the insulating support, but be not limited to the insulation anchor clamps, also can select separately, copper bar is fixed on the insulating support as long as can satisfy according to actual conditions.
Described insulating support links to each other with the inwall of inverter cabinet or transformer case, or link to each other with the transformer folder, promptly make insulating support be connected on the metal cabinet of transformer case or inverter cabinet, thereby guarantee that insulating support and ironware satisfy the insulation distance and the creepage distance of system voltage to copper bar.
Connect for convenience and safeguard, described copper bar is mainly by unit input copper bar, transformer output copper bar and be used for linkage unit input copper bar and the copper bar that is connected of transformer output copper bar constitutes; Described unit input copper bar is connected the power cell input, and transformer output copper bar is connected phase shifting transformer secondary side leading-out terminal, connects copper bar between unit input copper bar and transformer output copper bar.
Separate also fastening by the insulation clamp assembly between the above-mentioned connection copper bar.
In sum, the beneficial effects of the utility model are:
(a) the utility model adopts copper bar to connect, and can guarantee its electric property, because of the copper bar price is lower than the price of high-tension cable, has reduced manufacturing cost after the optimal design;
(b), provide good basis for optimizing sectional area because copper bar exposes, and its heat-sinking capability is better than high-tension cable far away;
(c) high voltage converter only need be opened the connecting bolt of specific position when tearing fortune open, can easily transformer case be separated with the inverter cabinet, helps the whole Transporting of cabinet;
(d) the orderly discharging of copper bar can reduce the volume of tandem type high voltage converter.
Description of drawings
Fig. 1 is the frequency converter general arrangement schematic;
Fig. 2 connects the integral arrangement structure chart for the cable of existing frequency converter;
Fig. 3 is a structural representation of the present utility model;
Fig. 4 is a three-dimensional structure schematic diagram of the present utility model;
Fig. 5 is the local enlarged diagram at B position among Fig. 4;
Fig. 6 is the local enlarged diagram at C position among Fig. 4;
Fig. 7 is the structural representation of copper bar;
Fig. 8 is arrangements of cells figure;
Fig. 9 is a phase shifting transformer secondary side leading-out terminal layout plan;
Figure 10 insulate anchor clamps and insulating support layout plan.
Mark and corresponding parts title in the accompanying drawing: 1-inverter cabinet; 2-transformer case; 3-power cell; 4-phase shifting transformer; 5-copper bar; 6-insulating support; 7-insulation anchor clamps; 8-unit input copper bar; 9-transformer output copper bar; 10-connection copper bar; 11-insulation clamp assembly; 12-cable; 13-three-phase alternating-current motor; 14-power frequency input power supply.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but execution mode of the present utility model is not limited only to this.
Embodiment:
As shown in Figure 1, the power major loop of voltage-source type tandem type high-voltage high-power frequency transformator, the main connection by secondary side cable 12 with phase shifting transformer 4 by the power cell among Fig. 13 combines, and power cell 3 links to each other with power frequency input power supply 14 with three-phase alternating-current motor 13 respectively with phase shifting transformer 4.
As shown in Figure 2, the power cell 3 and the phase shifting transformer 4 of existing frequency converter is installed in the inside of inverter cabinet 1 and transformer case 2 respectively, between phase shifting transformer 4 secondary sides and the power cell 3,, use the high-tension cable 12 of 45～108 6KV or 10KV to connect according to the output voltage difference; And according to the rated power of frequency converter, the cable 12 of institute's adapted is selected the sectional area of wire of different size for use.Above method of attachment all extensively applies to voltage-source type tandem type high voltage converter field.
Be used for above-mentioned method of attachment and exist wasting phenomenon, do not meet the requirement of current low-carbon economy, also unreliable, so the utility model proposes the full copper bar syndeton of a kind of tandem type high-voltage high-power frequency transformator secondary side, be used to replace current full high voltage cable method of attachment, its concrete structure is as follows:
As shown in Figure 3, the utility model is mainly by inverter cabinet 1, transformer case 2 and be installed in inverter cabinet 1 respectively and the power cell 3 of transformer case 2 inside and phase shifting transformer 4 constitute, and links to each other by copper bar 5 between described power cell 3 and phase shifting transformer 4 secondary sides; Copper bar 5 not only can guarantee its electric property, and because of the copper bar price is lower than the price of high-tension cable, has reduced manufacturing cost after the optimal design; Because copper bar exposes, its heat-sinking capability is better than high-tension cable far away, provides good basis for optimizing sectional area.
In the said structure, according to the Dian Ya Cha ⊿ U=460V～690V(AC value of adjacent power unit 3), needed secured electrical gap, safety creepage distance are arranged the position of power cell 3 in inverter cabinet 1; Dian Ya Cha ⊿ U=460V～690V(AC value according to adjacent power unit 3), needed secured electrical gap, safety creepage distance are arranged phase shifting transformer 4 secondary side outlet terminal positions; Dian Ya Cha ⊿ U=460V～690V(AC value according to adjacent power unit 3), needed secured electrical gap, safety creepage distance are arranged the position of copper bar 5 in inverter cabinet 1 and transformer case 2; According to the actual rated power of high-voltage high-power frequency transformator, choose the sectional area of copper bar 5.
Shown in Fig. 4,5 and 6, the inside of described inverter cabinet 1 and transformer case 2 all is equipped with insulating support 6, and insulating support 6 is connected on the metal cabinet of inverter cabinet 1 or transformer case 2, to guarantee that insulating support and ironware satisfy the insulation distance and the creepage distance of system voltage to copper bar 5, copper bar 5 is fixed on the insulating support 6; Described copper bar 5 is fixed on the insulating support 6 by insulation anchor clamps 7, and the copper bar 5 between inverter cabinet 1 and transformer case 2 separates also fastening by insulation clamp assembly 11.
As shown in Figure 7, connect for convenience and safeguard, described copper bar 5 is mainly by unit input copper bar 8, transformer output copper bar 9 and be used for linkage unit input copper bar 8 and the copper bar 10 that is connected of transformer output copper bar 9 constitutes; Described unit input copper bar 8 is connected power cell 3 inputs, and transformer output copper bar 9 is connected phase shifting transformer 4 secondary side leading-out terminals, connects copper bar 10 between unit input copper bar 8 and transformer output copper bar 9; Connecting between the copper bar 10 separates also fastening by insulation clamp assembly 11.
As shown in Figure 8, power cell 3 of the present utility model is arranged A1 unit, A2 unit according to the adjacent voltage of minimum ... the A5 unit, B1 unit, B2 unit ... B5 unit and C1 unit, C2 unit ... the C5 unit.
As shown in Figure 9, phase shifting transformer 4 secondary side leading-out terminals of the present utility model are arranged transformer output a1, a2 according to the adjacent voltage of minimum ... a5, b 1, b2 ... b5 and c1, c2 ... c5.
As shown in figure 10,5 of insulation anchor clamps 7 and copper bars design according to needed secured electrical gap and safety creepage distance; 5 of insulating support 6 and copper bars are according to needed secured electrical gap and safety creepage distance design.
As mentioned above, just can realize the utility model preferably.
Claims (6)
1. the full copper bar syndeton of tandem type high-voltage high-power frequency transformator secondary side, mainly by inverter cabinet (1), transformer case (2) and be installed in inverter cabinet (1) respectively and power cell (3) and phase shifting transformer (4) formation that transformer case (2) is inner, it is characterized in that, link to each other by copper bar (5) between described power cell (3) and phase shifting transformer (4) secondary side.
2. the full copper bar syndeton of tandem type high-voltage high-power frequency transformator secondary side according to claim 1, it is characterized in that, the inside of described inverter cabinet (1) and transformer case (2) all is equipped with insulating support (6), and copper bar (5) is fixed on the insulating support (6).
3. the full copper bar syndeton of tandem type high-voltage high-power frequency transformator secondary side according to claim 2 is characterized in that, described copper bar (5) is fixed on the insulating support (6) by insulation anchor clamps (7).
4. the full copper bar syndeton of tandem type high-voltage high-power frequency transformator secondary side according to claim 2 is characterized in that, described insulating support (6) links to each other with the inwall of inverter cabinet (1) or transformer case (2).
5. according to the full copper bar syndeton of each described tandem type high-voltage high-power frequency transformator secondary side among the claim 1-4, it is characterized in that, described copper bar (5) mainly by unit input copper bar (8), transformer output copper bar (9) and be used for linkage unit input copper bar (8) and transformer output copper bar (9) be connected copper bar (10) formation; Described unit input copper bar (8) is connected power cell (3) input, transformer output copper bar (9) is connected phase shifting transformer (4) secondary side leading-out terminal, connects copper bar (10) and is positioned between unit input copper bar (8) and the transformer output copper bar (9).
6. the full copper bar syndeton of tandem type high-voltage high-power frequency transformator secondary side according to claim 5 is characterized in that, separates also fastening between the described connection copper bar (10) by insulation clamp assembly (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205672407U CN201877994U (en) | 2010-10-19 | 2010-10-19 | Structure for connecting secondary sides with copper bars in cascaded high-voltage high-power frequency converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205672407U CN201877994U (en) | 2010-10-19 | 2010-10-19 | Structure for connecting secondary sides with copper bars in cascaded high-voltage high-power frequency converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201877994U true CN201877994U (en) | 2011-06-22 |
Family
ID=44165902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205672407U Expired - Lifetime CN201877994U (en) | 2010-10-19 | 2010-10-19 | Structure for connecting secondary sides with copper bars in cascaded high-voltage high-power frequency converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201877994U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102497111A (en) * | 2011-11-20 | 2012-06-13 | 合肥华耀电子工业有限公司 | Fast-control power supply system based on IPM (intelligent power module) H-bridge cascade connection |
| CN103748778A (en) * | 2011-06-29 | 2014-04-23 | 西门子工业公司 | Packaging of power supply using modular electronic modules |
| CN104319982A (en) * | 2014-11-04 | 2015-01-28 | 国家电网公司 | Power device combined cabinet connecting device |
| CN109861557A (en) * | 2018-12-26 | 2019-06-07 | 江苏万帮德和新能源科技股份有限公司 | A kind of tandem type middle-and-high voltage system |
-
2010
- 2010-10-19 CN CN2010205672407U patent/CN201877994U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103748778A (en) * | 2011-06-29 | 2014-04-23 | 西门子工业公司 | Packaging of power supply using modular electronic modules |
| CN103748778B (en) * | 2011-06-29 | 2017-06-30 | 西门子公司 | Use the packaging of the power supply of Modular electrical submodule |
| CN102497111A (en) * | 2011-11-20 | 2012-06-13 | 合肥华耀电子工业有限公司 | Fast-control power supply system based on IPM (intelligent power module) H-bridge cascade connection |
| CN102497111B (en) * | 2011-11-20 | 2014-10-22 | 合肥华耀电子工业有限公司 | Fast-control power supply system based on IPM (intelligent power module) H-bridge cascade connection |
| CN104319982A (en) * | 2014-11-04 | 2015-01-28 | 国家电网公司 | Power device combined cabinet connecting device |
| CN109861557A (en) * | 2018-12-26 | 2019-06-07 | 江苏万帮德和新能源科技股份有限公司 | A kind of tandem type middle-and-high voltage system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104022675B (en) | Single-stage two-way isolation AC-DC converter | |
| CN103311924A (en) | Single-phase combined co-phased power supply and transformation structure | |
| CN203457066U (en) | T-type three-level photovoltaic grid-connected inverter | |
| CN204205599U (en) | A kind of electronic type feeder line on-load voltage regulating device | |
| CN201877994U (en) | Structure for connecting secondary sides with copper bars in cascaded high-voltage high-power frequency converter | |
| CN101795080A (en) | Three-phase power electronics transformer for power distribution | |
| CN102611116A (en) | Single-phase electric energy quality controller for electrified railway power supply system | |
| CN104269900A (en) | Main wiring system of electric automobile charging station system | |
| CN2935588Y (en) | AC-DC-AC traction transformation device | |
| CN212796591U (en) | Rail transit power supply system | |
| CN110137950A (en) | A kind of transmission system | |
| CN202948822U (en) | Dry-type transformer | |
| CN102810857A (en) | Power quality regulator for series direct current power system | |
| CN104715906A (en) | Dry-type transformer for photovoltaic power generation and photovoltaic inversion system | |
| CN202067649U (en) | On-load capacity-regulating power transformer | |
| CN102638047A (en) | Three-phase unified power quality control device with bypass switches | |
| CN204392098U (en) | A kind of Monophase electric power electronic transformer and application system thereof | |
| CN110212671A (en) | A kind of super-pressure phase modifier system applied in ultra-high voltage converter station | |
| CN203352187U (en) | Single-phase combined co-phased power supply and transformation device | |
| CN202178139U (en) | Two-split rectifier transformer | |
| CN204190425U (en) | A kind of electric automobile charging station system main electrical scheme system | |
| CN103779051A (en) | Dry type transformer for photovoltaic power generation | |
| CN1874100A (en) | Line-to-line voltage compensation type current limiting energy storage circuit | |
| CN202871485U (en) | Dry type transformer for photovoltaic generation | |
| CN203242469U (en) | Oil-immersed transformer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110622 |
|
| CX01 | Expiry of patent term |