Submerged arc furnace transformer load monitoring and recording device

Abstract

A submerged arc furnace transformer load monitoring and recording device comprises a first voltage transformer, a current transformer, a squirrel-cage hollow current transformer, a second voltage transformer and a monitoring and recording unit. The first voltage transformer and the current transformer are mounted on the primary side of a submerged arc furnace transformer; and the squirrel-cage current transformer and the second voltage transformer are mounted on the secondary side of the submerged arc furnace transformer. Besides, the first voltage transformer and the current transformer on the primary side of the submerged arc furnace transformer are connected with the monitoring and recording unit through a first electric parameter acquisition module, the squirrel-cage hollow current transformer on the secondary side of the submerged arc furnace transformer is connected with the monitoring and recording unit through a comprehensive conditioning module and a second electric parameter acquisition module sequentially, and the second voltage transformer is connected with the monitoring and recording unit through a second electric parameter acquisition module. The submerged arc furnace transformer load monitoring and recording device utilizing the squirrel-cage hollow current transformer has the advantage that current flow and balance of each short network can be monitored accurately and operation reliability can be improved greatly.

Description

technical field [0001] The invention relates to a submerged arc furnace transformer load monitoring and recording device. Background technique [0002] Submerged arc furnace transformers are widely used in high-energy-consuming smelting industries such as ferroalloy, calcium carbide, and industrial silicon. The working current of the secondary side of the transformer is usually tens of thousands to more than 100,000 amperes. Excessive working current and harsh working environment have led to the lack of effective and reliable monitoring methods for a long time, and there is a certain blindness in the operation of transformers, which poses a threat to the safe operation of transformers. In 2011, there were hundreds of transformers in the calcium carbide industry alone. The transformer was damaged, causing significant economic losses. In addition, the mechanical contact difference and the performance degradation of the electrical contact of the transformer transmission short ...

AI Technical Summary

Problems solved by technology

Excessive working current and harsh working environment have led to the lack of effective and reliable monitoring methods for a long time, and there is a certain blindness in the operation of transformers, which poses a threat to the safe operation of transformers. In 2011, there were hundreds of transformers in the calcium carbide industry alone. Transformer damage, resulting in significant economic losses

In addition, the mechanical contact difference and the performance degradation of the electrical contact of the transformer transmission short network will cause the current imbalance of the transmission short network, reduce the efficiency of power transmission, and then affect the work of the entire system

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