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2 011 260

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IPC

(21) (22)

Application

5019441/07, 1991-11-22

(22)

Actual filing date

1991-11-22

(45)

Published

1994-04-15

(72)

Inventor

Novikov O.I.

(73)

Holder

Ural'Skoe Otdelenie Vserossijskogo Nauchno-Issledovatel'Skogo Instituta Zheleznodorozhnogo Transporta

DEVICE FOR PROTECTION SEMICONDUCTOR CONVERTER AGAINST OVERVOLTAGES Russian patent published in 1994 - IPC

Abstract RU 2011260 C1

FIELD: electric engineering. SUBSTANCE: device protects against overvoltages power equipment of the converter which is made according to three-phase bridge and zero circuits and has three arresters, two damping resistors, three-phase transformer and three-phase diode bridge. Three-phase transformer and bridge feed the device with three-phase voltages with phase shift of 60 el. deg. EFFECT: improved efficiency of protection. 3 cl, 2 dwg

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RU 2 011 260 C1

Authors

Novikov O.I.

Dates

1994-04-15—Published

1991-11-22—Filed