| 摘要 |
PURPOSE:To change over one transformer simultaneously only by changing over a terminal for changing over the voltage of the other transformer by a method wherein the terminals of the primary winding of the two transformers are connected in common in a specified form. CONSTITUTION:The terminals 4, 5 of the primary winding N2 of the second transformer T2 is connected to the terminals 1, 2 of the primary winding N1 of the first transformer T1. A contact member material 6 is further mounted which can selectively be connected to the terminals 2, 3 of the primary winding N1. When input voltage 7 is used at 100V, the contact member material 6 is contacted with the terminal 2 and fixed input voltage can be supplied at the input sides of transformers T1, T2. When input power source 7 is used at 115V, 115V can be supplied to T1 and 100V to T2 by changing over contact member material 6 to terminal 3. Thus, one transformer can effectively be changed over only by changing over terminals for changing over the voltage of the other transformer. |
