CN103018641B - Electrolysis direct current system voltage resistance experiment method - Google Patents
Electrolysis direct current system voltage resistance experiment method Download PDFInfo
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- CN103018641B CN103018641B CN201210496300.4A CN201210496300A CN103018641B CN 103018641 B CN103018641 B CN 103018641B CN 201210496300 A CN201210496300 A CN 201210496300A CN 103018641 B CN103018641 B CN 103018641B
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Abstract
A kind of electrolysis direct current system voltage resistance experiment method of the present invention, wherein Rectification Power Factor is made up of rectifier cabinet A and rectifier cabinet B; Rectifier cabinet A, B are exported positive bus-bar in parallel, described rectifier cabinet A, B are exported negative busbar in parallel; Rectifier cabinet A, B positive bus-bar output terminal after parallel connection is connected with tank room positive terminal by cable; Also be connected with the first fuse by cable, the first fuse other end is connected with the first air switch, and the other end of the first air switch is connected with tank room positive terminal; Rectifier cabinet A, B negative busbar output terminal after parallel connection is connected with second fuse one end by cable, the second fuse other end is connected with shunt, the shunt other end is connected with the second air switch, and the second air switch other end is connected with the earth terminal of tank room.The present invention can understand the insulation against ground situation of electrolysis direct current system, the earth fault that Timeliness coverage and process exist, and after preventing power transmission, multipoint earthing occurs, thus avoids the injury causing equipment and the person.
Description
Technical field
The present invention relates to electrolysis plant electrolysis direct current system insulation technology field, is a kind of electrolysis direct current system voltage resistance experiment method specifically.
Technical background
After electrolytic aluminium factory is gone into operation, whole production period bears powerful DC current and higher DC voltage, if the defective insulation of electrolytic series will have direct current to reveal in production run, affect the current efficiency of electrolysis production, cause the corrosion of factory building thing and equipment, the safety of life is constituted a threat to, therefore successful for ensureing electrolysis direct current series power transmission before power transmission, the safety of guarantee equipment and life, need check one by one each possibility earth point of electrolysis complete series and measure, it is very difficult for completing by manual operation in practice, adopting this invention electrolysis direct current system dielectric voltage withstand to test is a kind of simple effective method solving this difficulty, the insulation against ground situation of electrolysis direct current series is understood by this experiment, and the earth fault that Timeliness coverage and process exist, prevent because there is multipoint earthing after electrolytic series power transmission, and cause the injury of equipment and the person.
In a word, there is not been reported for a kind of electrolysis direct current system voltage resistance experiment method.
Summary of the invention
For solving shortcoming of the prior art, the object of this invention is to provide a kind of safe and effective electrolysis direct current system voltage resistance experiment method.
For achieving the above object, the technical solution adopted in the present invention is:
A kind of electrolysis direct current system voltage resistance experiment method, wherein Rectification Power Factor is made up of rectifier cabinet A and rectifier cabinet B; Described rectifier cabinet A, B are exported positive bus-bar in parallel, described rectifier cabinet A, B are exported negative busbar in parallel; Rectifier cabinet A, B positive bus-bar output terminal after parallel connection is connected with tank room positive terminal by cable; Rectifier cabinet A, B positive bus-bar output terminal after described parallel connection is also connected with the first fuse by cable, and the first fuse other end is connected with the first air switch, and the other end of the first air switch is connected with tank room positive terminal; Rectifier cabinet A, B negative busbar output terminal after parallel connection is connected with second fuse one end by cable, the second fuse other end is connected with shunt, the shunt other end is connected with the second air switch, and the second air switch other end is connected with the earth terminal of tank room.
Described Rectification Power Factor positive bus-bar end, negative busbar end are connected with multimeter two ends respectively.Described Rectification Power Factor positive bus-bar end, negative busbar end are also connected with electric furnace heating wire two ends respectively.Described shunt two ends are parallel with milivoltmeter.The whole short circuit of short-circuit opening between each electrolytic tank in described tank room.
Described experimentation is:
The first step, Rectification Power Factor transformer is had slowly by on-load voltage regulating switch and carries boosting, according to the DC voltage of electrolysis direct current system, the millivolt pressure drop < X millivolt of setting shunt, continues to have slowly Rectification Power Factor transformer to carry boosting;
Second step, when the millivolt pressure drop >=X millivolt of shunt, stop to Rectification Power Factor transformer carry out have carry boosting, earth point is searched and defect elimination process; Until when recovering millivolt pressure drop < X millivolt, proceed to rise loaded switch operation to Rectification Power Factor;
3rd step, according to the voltage of various Rectification Power Factor, trial voltage is risen to setting value (determine according to on-the-spot Rectification Power Factor field survey), keep stable operation, whether the person of outstanding talent examining shunt lies prostrate pressure drop and electrolysis direct current system has and strikes sparks and earth fault.
Advantage of the present invention is:
1, experimental technique of the present invention can detect the withstand voltage situation of the insulation of electrolysis complete series and each insulating point, measures the Leakage Current over the ground of earth point, and blows ground connection thing by Leakage Current, defective insulation point detected.
2, experimental technique of the present invention can understand the insulation against ground situation of electrolysis direct current series, and the earth fault that Timeliness coverage and process exist, there is multipoint earthing after preventing electrolytic series power transmission, thus avoid the injury causing equipment and the person.
Accompanying drawing explanation
Fig. 1 is electrical block diagram of the present invention.
Specific implementation method
As shown in Figure 1, a kind of electrolysis direct current system voltage resistance experiment method, wherein Rectification Power Factor 1 is made up of rectifier cabinet A and rectifier cabinet B; Described rectifier cabinet A, B are exported positive bus-bar in parallel, described rectifier cabinet A, B are exported negative busbar in parallel; Rectifier cabinet A, B positive bus-bar output terminal after parallel connection is connected with tank room 8 positive terminal by cable; Rectifier cabinet A, B positive bus-bar output terminal after described parallel connection is also connected with the first fuse 2 by cable, and first fuse 2 other end is connected with the first air switch 3, and the other end of the first air switch 3 is connected with tank room 8 positive terminal; Rectifier cabinet A, B negative busbar output terminal after parallel connection is connected with second fuse 4 one end by cable, second fuse 4 other end is connected with shunt 5, shunt 5 other end is connected with the second air switch 7, and second air switch 7 other end is connected with the earth terminal of tank room.
Described Rectification Power Factor 1 positive bus-bar end, negative busbar end are connected with multimeter 10 two ends respectively.Described Rectification Power Factor 1 positive bus-bar end, negative busbar end are also connected with electric furnace heating wire 9 two ends respectively.Described shunt 5 two ends are parallel with milivoltmeter 6.The whole short circuit of short-circuit opening between each electrolytic tank in described tank room 8.
Described experimentation is:
The first step, Rectification Power Factor 1 transformer is had slowly by on-load voltage regulating switch and carries boosting, according to the DC voltage of electrolysis direct current system, the millivolt pressure drop < X millivolt (value of X is between 10 ~ 30mv millivolt) of setting shunt 5, continues to have slowly Rectification Power Factor 1 transformer to carry boosting;
Second step, when the millivolt pressure drop >=X millivolt of shunt 5, stop to Rectification Power Factor 1 transformer carry out have carry boosting, earth point is searched and defect elimination process; Until when recovering millivolt pressure drop < X millivolt, proceed to rise loaded switch operation to Rectification Power Factor 1;
3rd step, according to the voltage of various Rectification Power Factor 1, rises to setting value by trial voltage, keeps stable operation, and the person of outstanding talent examining shunt lies prostrate pressure drop and whether electrolysis direct current system has sparking and earth fault.
According to different series voltage, trial voltage is raised to certain altitude stable operation a period of time, examine person of outstanding talent volt pressure drop and electrolysis direct current system with or without sparking and earth fault.
Claims (2)
1. an electrolysis direct current system voltage resistance experiment method, is characterized in that:
Wherein Rectification Power Factor (1) is made up of rectifier cabinet A and rectifier cabinet B;
Described rectifier cabinet A, B are exported positive bus-bar in parallel, described rectifier cabinet A, B are exported negative busbar in parallel;
Rectifier cabinet A, B positive bus-bar output terminal after parallel connection is connected with tank room (8) positive terminal by cable;
Rectifier cabinet A, B positive bus-bar output terminal after described parallel connection is also connected with the first fuse (2) by cable, first fuse (2) other end is connected with the first air switch (3), and the other end of the first air switch (3) is connected with tank room (8) positive terminal;
Rectifier cabinet A, B negative busbar output terminal after parallel connection is connected with the second fuse (4) one end by cable, second fuse (4) other end is connected with shunt (5), shunt (5) other end is connected with the second air switch (7), and the second air switch (7) other end is connected with the earth terminal of tank room;
Described Rectification Power Factor (1) positive bus-bar end, negative busbar end are connected with multimeter (10) two ends respectively;
Described Rectification Power Factor (1) positive bus-bar end, negative busbar end are also connected with electric furnace heating wire (9) two ends respectively;
Described shunt (5) two ends are parallel with milivoltmeter (6);
The whole short circuit of short-circuit opening between each electrolytic tank in described tank room (8).
2., by experimental technique according to claim 1, it is characterized in that:
Described experimentation is:
The first step, Rectification Power Factor (1) transformer is had slowly by on-load voltage regulating switch and carries boosting, according to the DC voltage of electrolysis direct current system, the millivolt pressure drop < X millivolt of setting shunt (5), continues to have slowly Rectification Power Factor (1) transformer to carry boosting;
Second step, when the millivolt pressure drop >=X millivolt of shunt (5), stop to Rectification Power Factor (1) transformer carry out have carry boosting, earth point is searched and defect elimination process; Until when recovering millivolt pressure drop < X millivolt, proceed to rise loaded switch operation to Rectification Power Factor (1);
3rd step, according to the voltage of various Rectification Power Factor (1), rises to setting value by trial voltage, keeps stable operation, and the person of outstanding talent examining shunt lies prostrate pressure drop and whether electrolysis direct current system has sparking and earth fault.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210496300.4A CN103018641B (en) | 2012-11-28 | 2012-11-28 | Electrolysis direct current system voltage resistance experiment method |
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| CN201210496300.4A CN103018641B (en) | 2012-11-28 | 2012-11-28 | Electrolysis direct current system voltage resistance experiment method |
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| CN103018641A CN103018641A (en) | 2013-04-03 |
| CN103018641B true CN103018641B (en) | 2015-11-04 |
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| CN103481799B (en) * | 2013-09-02 | 2015-12-23 | 株洲变流技术国家工程研究中心有限公司 | A kind of traction power supply control convenience and tractive power supply system |
| CN109507546B (en) * | 2018-11-06 | 2021-03-05 | 云南云铝涌鑫铝业有限公司 | Detection circuit of crust breaking cylinder of aluminum electrolytic cell and insulation detection method based on differential pressure |
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| CN201485514U (en) * | 2009-09-08 | 2010-05-26 | 沈阳铝镁设计研究院 | Rectifier unit with two electrolysis series |
| CN101907680A (en) * | 2009-06-04 | 2010-12-08 | 沈阳铝镁设计研究院 | Electrolysis direct current system online insulated monitoring device and a monitoring method |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101907680A (en) * | 2009-06-04 | 2010-12-08 | 沈阳铝镁设计研究院 | Electrolysis direct current system online insulated monitoring device and a monitoring method |
| CN201485514U (en) * | 2009-09-08 | 2010-05-26 | 沈阳铝镁设计研究院 | Rectifier unit with two electrolysis series |
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| 106kA上插电解槽耐压试验;马列等;《轻金属》;19901231(第1期);全文 * |
| 大容量硅整流柜绝缘监视方案的确定;路颖菊;《轻金属》;19991220(第12期);全文 * |
| 新投产电解槽的耐压试验方法;唐明晓;《电世界》;20021231(第5期);第30页左栏第2段至右栏最后一段、附图 * |
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