| 摘要 |
In the case of known transformers, the secondary voltage is controlled either by separate voltage-controlling transductors arranged on the primary or secondary side or a premagnetising winding is assigned, as a transductor winding, to the transformer itself and is closely coupled to the secondary winding of said transformer, which premagnetizing winding is intended to increase the magnetic flux in the secondary circuit into the saturation region so that the stray inductance of the secondary winding is increased and the secondary voltage is thus influenced as a function of the power. According to the invention, a transductor part (5, 17, 18, 19) is integrated in the iron core of the transformer, as a sleeve core (6, 7). The primary winding (8) is split such that one winding part is located on the transformer limb and the rest of the winding is fitted on both limbs of the transductor core (2), in two winding elements (A-C; B-C) which have the same number of turns and are wound in the same sense. The free ends of the transductor windings are connected (via in each case one rectifier (9, 10, 23-28) which connects the alternating current flowing through the transductor windings to one transductor winding during one half cycle and to the other transductor winding during the other half cycle) to one pole of the mains power supply and the free end of each primary winding to the other pole of the mains power supply. A control winding (12, 29) through which the control direct current (Is) flows has the same winding sense and the same flow direction ... Original abstract incomplete. <IMAGE>
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