| 摘要 |
PURPOSE:To shorten the stopping time of a transformer by composing a tap fixing device forming an on-load tap changer of a stationary unit made of stationary contacts arranged on a common insulating support and a movable unit formed separably from the stationary unit, thereby facilitating the manufacture thereof and enabling the arbitrary fixture of desired tap. CONSTITUTION:A tap coil 2 is connected to a main coil 1 of a transformer as one phase, a plurality of lead wires 3 are led from the coil, and a tap fixing device 6 connected to the changer switch 9 of 2 parallel resistor type is arranged via a tap selector 4 in opposed manner. With the structure thus composed, the odd and even sides of the stationary contact 4S group of the selector 4 are selected by the movable contacts 4M1 and 4M2, and the stationary contacts 6A, 6E provided in the tap fixing device 6 are electrically connected with connecting wires 5L1 and 5L2. The stationary units 6S1 and 6S2 and the movable units 6M1 and 6M2 electrically connected at every odd and even side circuits of the selector 4 are provided in the device 6, and either one of tap changer is activated. |
