Coal Mine Electrician Handbook, Fourth Volume: Electrical Control and Communication of Mining and Transport Machinery

Author: Gu Yonghui et al.
Publisher:
Publish Date: 1998-04-01
Features: This book is available for technical personnel and workers engaged in electrical equipment maintenance in coal mines and other enterprises to refer to and use. This volume mainly includes:
Part 1: Common calculation formulas, laws, terminology, common electrical symbols and units, basic principles of electrical equipment explosion-proofing, electrical materials, and electrical measuring instruments. It is the foundational part of the Coal Mine Electricians Handbook, from which basic calculation methods and data for electrical equipment maintenance and operation can be found.
Part 2: Repair methods for AC/DC, high/low-voltage motors, high/low-voltage switches, special motors, and various transformers, as well as wiring methods for changing voltage, frequency, pole numbers, and capacity. It provides detailed repair processes, technical data, calculation methods, and testing procedures for personnel engaged in various electrical equipment repairs.