FIELD: electrical engineering.
SUBSTANCE: invention relates to electrical engineering and is used in rectifiers. Five-beam star of overvoltage limiters is connected to poles and phases of rectifying bridge 3 by 4–8 beams. Middle point of the star is connected to grounding 9, which allows to protect the secondary feeding winding 2 of the transformer.
EFFECT: higher reliability.
1 cl, 1 dwg
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