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Insulation and voltage resistance experiment method of electrolytic direct-current system

An experimental method and DC system technology, applied in the field of electrolytic DC system insulation withstand voltage, can solve the problems that the electrolytic DC system insulation withstand voltage test method has not been reported, and achieve the effect of avoiding damage

Active Publication Date: 2013-04-03
SHENYANG ALUMINIUM MAGNESIUM INSTITUTE
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AI Technical Summary

Problems solved by technology

[0003] In a word, an electrolytic DC system insulation withstand voltage test method has not been reported yet.

Method used

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  • Insulation and voltage resistance experiment method of electrolytic direct-current system

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Embodiment Construction

[0017] Such as figure 1 As shown, an electrolytic DC system insulation withstand voltage test method, in which the rectifier unit 1 is composed of a rectifier cabinet A and a rectifier cabinet B; the positive busbars of the rectifier cabinets A and B are connected in parallel, and the rectifier cabinets A and B are output The negative busbars are connected in parallel; the positive busbar output ends of the parallel rectifier cabinet A and B are connected to the positive end of the electrolysis chamber 8 through a cable; the paralleled rectifier cabinet A, B positive busbar output ends are also connected to the first fuse 2 through a cable The other end of the first fuse 2 is connected to the first air switch 3, and the other end of the first air switch 3 is connected to the positive terminal of the electrolysis chamber 8; the output ends of the negative busbars of the rectifier cabinets A and B in parallel are connected to the One end of the second fuse 4 is connected, the oth...

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Abstract

The invention relates to an insulation and voltage resistance experiment method of an electrolytic direct current system. A rectifier unit consists of a rectifier cabinet A and a rectifier cabinet B; output positive busbars of the rectifier cabinets A and B are connected with each other in parallel, and output negative busbars of the rectifier cabinets A and B are connected with each other in series; the output ends of the positive busbars, connected with each other in parallel, of the rectifier cabinets A and B are connected with the positive electrode end of an electrolysis compartment by cables, and are also connected with a first fuse by cables; the other end of the first fuse is connected with a first air switch, and the other end of the first air switch is connected with the positive electrode end of the electrolysis compartment; and the output ends of the negative busbars, connected with each other in series, of the rectifier cabinets A and B are connected with one end of a second fuse by cables, the other end of the second fuse is connected with a shunt, the other end of the shunt is connected with a second air switch, and the other end of the second air switch is connected with the grounding end of the electrolysis compartment. According to the method, the ground insulation of the electrolytic direct-current system can be mastered, grounding faults of the system can be found and treated in time, and multipoint grounding after power transmission can be prevented so as to avoid damage to equipment and human bodies.

Description

Technical field [0001] The invention relates to the technical field of insulation of electrolytic direct current systems in electrolysis plants, in particular to a test method for insulation withstand voltage of electrolytic direct current systems. technical background [0002] After the electrolytic aluminum plant is put into production, it is subjected to strong DC current and higher DC voltage during the entire production period. If the insulation of the electrolysis series is poor during the production process, there will be DC leakage, which will affect the current efficiency of electrolysis production and cause corrosion of plant buildings and equipment , Poses a threat to the safety of life. Therefore, in order to ensure the successful transmission of the electrolytic DC series before power transmission, to ensure the safety of equipment and life, it is necessary to check and measure each possible grounding point of the whole series of electrolysis one by one. In practice, ...

Claims

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Application Information

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IPC IPC(8): G01R31/12
Inventor 路颖菊袁进禹戈广金
Owner SHENYANG ALUMINIUM MAGNESIUM INSTITUTE
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