| 摘要 |
PURPOSE:To downsize a transformer by introducing discharge air from a forced discharge means mounted on a cubicle through an air introducing means thereby cooling the radiator of a juxtaposed transformer. CONSTITUTION:A fan 9 is mounted on the ceiling of a cubicle 3 used as a transformer secondary board incorporating a circuit breaker 5, a CT 6, a bus 7, conductors 8a, 8b, and the like. When the temperature in the board exceeds a predetermined level, the fan 9 begins to rotate to such outer air through a suction hole 11 made through a front door. Thus sucked air cools respective parts in the board and then passes through an air duct 21 to be discharged through a discharge port 22 thus cooling the radiator 2 of transformer 1. The transformer 1 is connected through a wiring duct 4 with the cubicle 3. According to the constitution, the transformer and the cubicle are downsized and cooled efficiently. |
