FIELD: electrical engineering; electrical processing installations.
SUBSTANCE: with fully closed thyristors of bridge 2 loads 1 consume minimal power from supply mains. With fully open thyristors of bridge 2 input power of loads is maximal and higher than former one by 33.3%. In the process reactive power consumed from supply mains greatly reduces within this range. Minimal higher harmonics are passed to supply mains. Thyristors of bridge 2 are placed at potential twice as rarely as those of prior-art installations.
EFFECT: enhanced reliability of electrical installation.
1 cl, 2 dwg
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