The technology of live cleaning and maintenance of electric power and electrical equipment is generally a technology for cleaning power and electrical equipment that does not have power outages or has periodic power outages. Cleaning is carried out by professional cleaning personnel using profession

I. Routine maintenance and inspection(1) Appearance inspection of switch cabinet.The switch cabinet shell has no deformation or damage; the protective paint has no serious rust, damage or peeling; the cabinet is firmly installed and the appearance is clean and free of debris; the nameplate and logo

Single-phase distribution transformers are small in size and light in weight. They can penetrate into the load center to the maximum extent, shorten the radius of the low-voltage network and reduce losses. This type of transformer can be installed on a pole, which is easy to install and can reduce m

1 Basic principles and structure of on-load tap-changerAn on-load tap changer is an electrical device that can change the tap position under excitation. The basic principle of voltage regulation by on-load industrial electrical tap changers is to lead out several taps in the transformer winding and