RU2010151247A

RU2010151247A - THREE-PHASE FILTROSYMMETRIC DEVICE

Info

Publication number: RU2010151247A
Application number: RU2010151247/07A
Authority: RU
Inventors: Валерий Дмитриевич Василенко (RU); Валерий Дмитриевич Василенко
Original assignee: Валерий Дмитриевич Василенко (RU); Валерий Дмитриевич Василенко
Priority date: 2010-12-13
Filing date: 2010-12-13
Publication date: 2012-06-20
Also published as: RU2459337C1

Abstract

Трехфазное фильтросимметрирующее устройство, содержащее входные зажимы для подключения питающей сети и выходные зажимы для подключения нагрузки, между входными и выходными зажимами включен трехфазный автоматический выключатель, к выходным зажимам которого подключен трехфазный симметрирующий трансформатор, первичные обмотки которого включены в «зигзаг», при этом нулевым выводом для подключения фазных нагрузок служит нулевой вывод включенных встречно в «зигзаг» первичных обмоток, отличающееся тем, что, с целью снижения потерь электрической энергиии и повышения качества электрической энергии, путем разделения путей протекания токов нулевой последовтельности для электроприемников, создающих высшие гармоники «нелинейные нагрузки», и электроприемников, не создающих высших гармоник, трехфазный трансформатор снабжен еще одним комплектом первичных обмоток, включенных встречно в «зигзаг» параллельно первым первичным обмоткам, а нулевой вывод этих обмоток соединен с нулевым выводом питающей сети и нулевым выводом фазных нелинейных нагрузок, а нулевой вывод первой группы первичных обмоток соединен с нулевым выводом линейных фазных нагрузок, не создающих высших гармоник. A three-phase filter-balancing device containing input terminals for connecting the mains and output terminals for connecting the load, a three-phase circuit breaker is connected between the input and output terminals, the output terminals of which are connected to a three-phase balancing transformer, the primary windings of which are included in the "zigzag", with a zero output to connect the phase loads, the zero output of the primary windings included in the opposite zigzag is used, characterized in that, in order to reduce the losses of electric energy and improving the quality of electric energy, by dividing the paths of zero-sequence currents for electric receivers that create higher harmonics “non-linear loads” and electric receivers that do not create higher harmonics, the three-phase transformer is equipped with another set of primary windings included in parallel in the “zigzag” in parallel the first primary windings, and the zero output of these windings is connected to the zero output of the supply network and the zero output of the phase nonlinear loads, and the zero output of the first ppy primary windings connected to the zero terminal of the linear phase loads without creating higher harmonics.

Claims

A three-phase filter-balancing device containing input terminals for connecting the mains and output terminals for connecting the load, a three-phase circuit breaker is connected between the input and output terminals, the output terminals of which are connected to a three-phase balancing transformer, the primary windings of which are included in the "zigzag", with a zero output to connect the phase loads, the zero output of the primary windings included in the opposite zigzag is used, characterized in that, in order to reduce the losses of electric energy and improving the quality of electric energy, by dividing the paths of zero-sequence currents for electric receivers that create higher harmonics “non-linear loads” and electric receivers that do not create higher harmonics, the three-phase transformer is equipped with another set of primary windings included in parallel in the “zigzag” in parallel the first primary windings, and the zero output of these windings is connected to the zero output of the supply network and the zero output of the phase nonlinear loads, and the zero output of the first ppy primary windings connected to the zero terminal of the linear phase loads without creating higher harmonics.