Wiring method for improving reliability of power supply system in aluminum electrolysis industry

A technology of power supply system and wiring method, which is applied in the direction of bus/line layout, etc., can solve the problems of rapid drop in temperature of the electrolytic cell, damage to the electrolytic cell, economic loss, etc., and achieve the goal of improving power supply security, reducing economic loss, and reducing workload Effect

Active Publication Date: 2015-03-25
云南云铝泽鑫铝业有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If there is gas leakage in two sets of isolating switch SF6 gas chambers on the side of the GIS bus bar of a certain rectifier unit, and maintenance is required, the 220kVI and II bus bars must be powered off. , the solidification of aluminum water, and damage to the electrolytic cell will cause huge economic losses

Method used

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  • Wiring method for improving reliability of power supply system in aluminum electrolysis industry
  • Wiring method for improving reliability of power supply system in aluminum electrolysis industry
  • Wiring method for improving reliability of power supply system in aluminum electrolysis industry

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Embodiment Construction

[0024] Such as figure 2 Shown, the wiring method of the present invention is:

[0025] 1. Use section circuit breaker I19 and section circuit breaker II20 on the 220kV section II bus to increase the section interval (used as a fault inspection section), so that the 220kV section II bus is divided into three section buses.

[0026] 2. Several rectifier units are connected to each section bus. No. 1, No. 2 and No. 3 rectifier units are connected to the first section bus of 220kV Section I bus and Section II bus, and the section I bus is connected with voltage mutual inductance No. 4 and No. 5 rectifier units are connected to 220kV Section I busbar and the second subsection busbar of Section II busbar, and the main busbar of Section I is connected to voltage transformer II5; No. 6, No. 7 and No. 8 rectifier units are connected to 220kVⅠ There is a set of voltage transformer III 9 on the third section bus of section II bus and the third section bus of section II bus. The group ...

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Abstract

The invention discloses a wiring method for improving the reliability of a power supply system in the aluminum electrolysis industry. The wiring method comprises modes of double inlet wire and double bus with main connection wire, and is characterized by comprising the steps as follows: dividing a 220 kV II bus section with two section gaps used as troubleshooting sections into three bus sections, respectively connecting a rectifier unit to the three bus sections of the 220 kV II bus section. According to the wiring method, the risk of shutdown is lowered, the power supply safety of the power supply system in a 220 kV rectifier station is improved on one hand and the power supply efficiency of aluminum electrolysis is enhanced on the other hand. The safety, reliability and stability of direct current power supply in electrolytic aluminum production are improved, the possibility of stopping all rectifier units is eliminated, the influence of GIS (Gas Insulated Switchgear) breaker failure repair on aluminum electrolysis production is reduced, the working amount of workers caused by shutdown due to power failure of electrolytic plants is reduced, and great financial losses due to the situations are reduced at the same time. The wiring method can adapt to the requirements of production technology in aluminum electrolysis.

Description

technical field [0001] The invention relates to a wiring method for improving the reliability of a power supply system of a 220kV rectifier used in the aluminum electrolysis industry. Background technique [0002] The 220kV rectifier power supply system plays a very important role in the production process of aluminum electrolysis. It directly provides energy for aluminum electrolysis production, ensuring safe and stable power supply for aluminum electrolysis production has always been a technical problem that the aluminum electrolysis industry needs to overcome for a long time. In the production process of aluminum electrolysis, if the power supply system of the 220kV rectification station cannot provide safe and stable power supply, not only the energy consumption will increase, but also there will be major safety risks, resulting in huge economic losses. [0003] At present, the wiring method adopted by the GIS switch station for the power supply system of the 220kV rect...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02B1/22
Inventor 唐波陈德斌保明靖杨俊峰廖荣刚车永庆
Owner 云南云铝泽鑫铝业有限公司
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