| 摘要 |
PURPOSE:To obtain a metal enclosed switchgear in which the maintenance and inspection are facilitated by eliminating the necessity of inspection and cleaning of air filter. CONSTITUTION:When an air filter 8 disposed in the vicinity of the suction port 2 of a transformer board 1 is clogged, an air filter winding roller 12 is driven by a winding motor 13 to wind up the clogged air filter and a new air filter is fed from an air filter roll 10 to the vicinity of the suction port 2. |
