Outlines best practices for post-installation inspection and testing of electrical machines and launchers. The modern technology of drying the insulation of electrical machines before turning on and checking the possibility of turning them on without preliminary drying are considered. Information on main instruments, tools and accessories used for adjustment works and safety recommendations are given. The book is intended for foremen, foremen and electrical workers. It will also be useful for electricians engaged in the operation and repair of electrical machines.