| 摘要 |
The invention relates to electric main equipment and may be used for control of objects connected to public service network, as well as to power-supply systems of industrial enterprises. A method for control of objects connected to the public service network comprises transmission a control signal over conductors of transmission line under operating voltage. According to the invention, the control signal is connected on industrial frequency using voltage modulation varying in limits of voltage quality standard amplitude of sine half-wave by means of using addition to voltage during regulation period which is more than period of AC voltage. A period of signal forming is fixed by two half-sinusoid of network voltage. The proposed method allows controlling distributed objects connected to public service network being distanced one from the other, and connected to the public service network, having high level of reliability, because powerful signal and free choice of signal characteristics substantially improves control, powerful signal allows simplification of decoding devices at controlled objects. |
