CN105610327A - High-power electric-arc-explosion-preventing rectifier - Google Patents
High-power electric-arc-explosion-preventing rectifier Download PDFInfo
- Publication number
- CN105610327A CN105610327A CN201610163146.7A CN201610163146A CN105610327A CN 105610327 A CN105610327 A CN 105610327A CN 201610163146 A CN201610163146 A CN 201610163146A CN 105610327 A CN105610327 A CN 105610327A
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- CN
- China
- Prior art keywords
- steel shell
- sealing steel
- copper bar
- rectifier
- shell body
- 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
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/003—Constructional details, e.g. physical layout, assembly, wiring or busbar connections
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Fuses (AREA)
Abstract
A high-power electric-arc-explosion-preventing rectifier is disclosed. The rectifier comprises a sealing steel shell, an alternating current wire-inlet copper bar, a current-sharing connecting copper bar, an overvoltage absorption protection apparatus, a high-power silicon element, a high-speed fuse and a direct current wire-outlet copper bar, wherein the high-speed fuse is connected with the high-power silicon element in series to form a rectifying assembly, and the rectifying assembly is mounted in the sealing steel shell; each rectifying assembly is connected with the alternating current wire-inlet copper bar and the direct current wire-outlet copper bar separately through the current-sharing connecting copper bar; the sealing steel shell is full of transformer oil; a transformer oil insulating online detector is mounted on the sealing steel shell and immersed in the transformer oil; the sealing steel shell is equipped with a pressure relief valve; and a cooler is connected with the inner cavity of the sealing steel shell through an oil inlet/outlet connecting pipe. The high-power electric-arc-explosion-preventing rectifier provided by the invention is creative in design, high in insulation, compact in structure, simple and convenient to mount, small in occupied space, and capable of greatly improving the insulation property, the antifouling property and the thermal dissipation property, eliminating electric arc explosion accidents of the rectifier, and ensuring the safe and reliable operation of the overall power supply.
Description
Technical field
The present invention relates to the high-power explosion-proof rectifier that AC power input changes dc power output into, especially a kind of high-power arc protection blast rectifier.
Background technology
In the large-scale rectifier of existing routine, every high-power silicon element and fastp-acting fuse are connected into assembly,, are supported in air with insulating materials again by many assembly parallel connections by various flow equalize technologies. High-power silicon element adopts pure water cooling, takes away the additional overvoltage absorption protective device of rectification circuit by circulate silicon cell the is worked heat of time generation of pure water. This kind of silicon rectifier is when output dc voltage is during higher than 600 volts, because inside is connected with pure water, make air humidity become large, cause insulated with material level to reduce, the interior insulating materials of rectifier easily voltage breakdown occurs and silicon cell punctures, fastp-acting fuse divides deenergizing to produce arc phenomenon afterwards, because circuit net capacity is very large, electric arc often cannot automatic distinguishing, the air of electric arc ionization, can produce again stronger electric arc, cause silicon rectifier self blast burnout failure.
Summary of the invention
Object of the present invention be just to provide a kind of novel structure compactness, simple installation, occupation of land less, the high-power arc protection blast rectifier of good insulating, use safety.
High-power arc protection blast rectifier of the present invention, comprise sealing steel shell body, exchange inlet wire copper bar, current-sharing connects copper bar, transformer oil Insulation Live Testing device, overvoltage absorption protective device, high-power silicon element, fastp-acting fuse, direct current outlet copper bar, it is characterized in that, fastp-acting fuse is oil immersed type, fastp-acting fuse and high-power silicon element are connected into rectifier stack, and be arranged in sealing steel shell body, each rectifier stack by current-sharing connect copper bar respectively with on sealing steel shell body, exchange inlet wire copper bar, direct current outlet copper bar connects, composition silicon rectifier main circuit, in sealing steel shell body, be full of transformer oil, transformer oil Insulation Live Testing device is arranged on sealing steel shell body and is immersed in transformer oil, composition transformer oil Insulation Live Testing system, and the insulation of guarantee transformer oil is not gone wrong, on sealing steel shell body, pressure relief valve is installed, to ensure that silicon rectifier oil system normally uses, cooler is connected with sealing steel shell intracoelomic cavity by turnover oil connecting pipe, and the transformer oil in sealing steel shell body is carried out to circulating cooling.
High-power arc protection blast rectifier of the present invention, critical piece high-power silicon element, fastp-acting fuse, current-sharing connection copper bar etc. are all immersed in the sealing steel shell body being full of with transformer oil, transformer oil withstand voltage is greater than 40KV/2.5mm, the dielectric level of transformer oil detects by transformer oil Insulation Live Testing device, and guarantee rectifier is definitely worked under high state of insulation; Rectifier is provided with cooler and the forced oil-circulation cooling system into and out of oil pipe composition outward, rectifier is carried out cooling, ensures that rectifier temperature is in claimed range. Reliable and stable because of transformer oil insulation, rectifier is worked therein, and insulation is also definitely reliable, the arc phenomenon that rectifier does not exist insulation breakdown to cause; After silicon cell punctures, oil immersed type fastp-acting fuse can divide rapidly short circuit, and the electric arc that transformer insulation oil produces can help to extinguish fused mass of fuse fusing time, has blocked electric arc generation like this, rectifier just can there is not electric arc explosion accident yet;
High-power arc protection blast rectifier design novelty of the present invention, insulate, compact conformation, simple installation, occupation of land be few, with existing large-scale conventional silicon rectifier contrast, can improve significantly insulating properties, soil resistance and thermal diffusivity, break off the explosion accident of rectifier generation electric arc, guarantee rectifier power source safe and reliable operation.
Brief description of the drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is the schematic top plan view of Fig. 1;
1, sealing steel shell body, 2, exchange inlet wire copper bar, 3, current-sharing connects copper bar; 4, oil conservater; 5, pressure relief valve, 6, transformer oil Insulation Live Testing device, 7, direct current outlet copper bar; 8, overvoltage absorption protective device; 9, high-power silicon element, 10, fastp-acting fuse, 11, transformer oil; 12, turnover oil connecting pipe, 13, cooler.
Detailed description of the invention
A kind of high-power arc protection blast rectifier, comprise sealing steel shell body 1, exchange inlet wire copper bar 2, current-sharing connects copper bar 3, transformer oil Insulation Live Testing device 6, overvoltage absorption protective device 8, high-power silicon element 9, fastp-acting fuse 10, direct current outlet copper bar 7, it is characterized in that, fastp-acting fuse 10 is oil immersed type, fastp-acting fuse 10 is connected into rectifier stack with high-power silicon element 9, and be arranged in sealing steel shell body 1, each rectifier stack by current-sharing connect copper bar 3 respectively with on sealing steel shell body 1, exchange inlet wire copper bar 2, direct current outlet copper bar 7 connects, composition silicon rectifier main circuit, in sealing steel shell body 1, be full of transformer oil 11, transformer oil Insulation Live Testing device 6 is arranged on sealing steel shell body 1 and is immersed in transformer oil 11, oil conservater 4 and pressure relief valve 5 are installed on sealing steel shell body 1, and oil conservater 4 communicates with sealing steel shell body 1, cooler 13 is connected with sealing steel shell body 1 inner chamber by turnover oil connecting pipe 12, and the transformer oil 11 in sealing steel shell body 1 is carried out to circulating cooling.
Claims (2)
1. a high-power arc protection blast rectifier, comprise sealing steel shell body (1), exchange inlet wire copper bar (2), current-sharing connects copper bar (3), transformer oil Insulation Live Testing device (6), overvoltage absorption protective device (8), high-power silicon element (9), fastp-acting fuse (10), direct current outlet copper bar (7), it is characterized in that: fastp-acting fuse (10) is oil immersed type, fastp-acting fuse (10) is connected into rectifier stack with high-power silicon element (9), and be arranged in sealing steel shell body (1), each rectifier stack by current-sharing connect copper bar (3) respectively with on sealing steel shell body (1), exchange inlet wire copper bar (2), direct current outlet copper bar (7) connects, composition silicon rectifier main circuit, in sealing steel shell body (1), be full of transformer oil (11), transformer oil Insulation Live Testing device (6) is arranged on sealing steel shell body (1) and is immersed in transformer oil (11), pressure relief valve (5) is installed on sealing steel shell body (1), cooler (13) is connected with sealing steel shell body (1) inner chamber by turnover oil connecting pipe (12).
2. high-power arc protection blast rectifier according to claim 1, is characterized in that: oil conservater (4) is installed on sealing steel shell body (1), and oil conservater (4) communicates with sealing steel shell body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610163146.7A CN105610327A (en) | 2016-03-22 | 2016-03-22 | High-power electric-arc-explosion-preventing rectifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610163146.7A CN105610327A (en) | 2016-03-22 | 2016-03-22 | High-power electric-arc-explosion-preventing rectifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105610327A true CN105610327A (en) | 2016-05-25 |
Family
ID=55989932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610163146.7A Pending CN105610327A (en) | 2016-03-22 | 2016-03-22 | High-power electric-arc-explosion-preventing rectifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105610327A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2833868Y (en) * | 2005-11-22 | 2006-11-01 | 西安西整熔断器厂 | Oil-cooled quick-acting fuse |
| CN203967992U (en) * | 2014-07-22 | 2014-11-26 | 柳州桂变整流科技有限公司 | Energy-efficient shell-type integrated rectifying device |
| CN204102693U (en) * | 2014-10-20 | 2015-01-14 | 柳州桂变整流科技有限公司 | Direct current exports oil immersed type rectifier transformer |
-
2016
- 2016-03-22 CN CN201610163146.7A patent/CN105610327A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2833868Y (en) * | 2005-11-22 | 2006-11-01 | 西安西整熔断器厂 | Oil-cooled quick-acting fuse |
| CN203967992U (en) * | 2014-07-22 | 2014-11-26 | 柳州桂变整流科技有限公司 | Energy-efficient shell-type integrated rectifying device |
| CN204102693U (en) * | 2014-10-20 | 2015-01-14 | 柳州桂变整流科技有限公司 | Direct current exports oil immersed type rectifier transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160525 |