| 摘要 |
<p>PURPOSE:To ensure safety by doubling economically by a method wherein a coupling device functioning so that the current change of one secondary winding circuit inhibits the current change of the other secondary winding circuit, and a nonlinear characteristic is given to the coupling device. CONSTITUTION:Two pairs of secondary winding 3, 4 being in common with primary winding 2 are mounted, and a coupling device 7 such as a current transformer is disposed between these secondary winding. Secondary load 5, 6 such as one with the same capacity is each wired to the two pairs of secondary winding. A nonlinear characteristic is further given to the coupling device 7. Thus, two pairs of voltage for doubling are obtained from a transformer for one meter while an effect on one output voltage due to an accident of the other output circuit is reduced, and safety by doubling can be ensured economically.</p> |
