The invention provides an auxiliary replacement device of a forced-oil-air cooling main transformer upper fan. A two-lifting-ring type fan support is selected to be matched with a pulley block type lifting support and comprises a supporting rod and a suspension arm assembly connected with the supporting rod, the suspension arm assembly is provided with double towing rings, and the pulley block type lifting support comprises a three-wheel pulley block comprising insulating pulleys and a safety hauling cable. A manufacturing process of the auxiliary replacement device of the forced-oil-air cooling main transformer upper fan comprises the following steps that the two-lifting-ring type support is designed, the type of the pulley block is selected and demonstrated, materials are collected and prepared, the two-lifting-ring type support is manufactured, the support assembly test is carried out, the pulley block is assembled, and site validation is carried out. By developing the safe, portable, general and easily operated replacement device and the matched corresponding replacement method, the number of people replacing the fan is decreased to 2 from 4, and good economic benefits and popularization value are achieved.
Auxiliary replacement device of forced-oil-air cooling main transformer upper fan
2015-07-22
Patent
Electronic Resource
English
Portable current transformer replacement auxiliary device
European Patent Office | 2021
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