| The main task is to design a power system with the medium voltage switchgearUnigear550and REF615as the components, And analyzes the protection and controlfunction.This topic is based on ABB company Unigear550,which is a small medium voltageswitch equipment.Through this topic research, made the following results:1, Finish the single line diagram design, small bus design, control circuit design,protection design, Through the optimization of electric control, improve the wholeswitch equipment reliability.2, Electrical control adopts the modular design, not only improve the workefficiency, and strengthen the software portability.3, Improve the reliability of the switchgear. |
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