ABB service manual with safety precautions, oil handling, and repair procedures for the UC load break switch (BUE/BUL drive).
This manual provides detailed instructions for the safe maintenance and repair of the ABB UC load break switch equipped with a BUE/BUL drive unit. It covers required safety measures, proper grounding, and compliance with local regulations before any work begins.
The document also describes oil handling procedures, component replacement steps, required tools and materials, and testing methods to ensure reliable operation after service. Illustrations and part lists help technicians perform the work efficiently. This manual is written in Chinese.
Power must be disconnected, the equipment must be grounded, and local safety regulations must be followed before any work.
The oil chamber must be grounded and kept free of moisture; check oil level before restarting the equipment.
Yes, the manual lists required electrical tools, hand tools, and replacement parts for each repair step.