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2 050 661

(13)

(51)

IPC

(21) (22)

Application

93029158/07, 1993-05-25

(22)

Actual filing date

1993-05-25

(45)

Published

1995-12-20

(72)

Inventor

Ivanov A.G.Arzamasov V.L.Mikhajlov V.V.Maslova M.N.

(73)

Holder

Vserossijskij Nauchno-Issledovatel'Skij Proektno-Konstruktorskij I Tekhnologicheskij Institut Relestroenija

ELECTRIC DRIVE THYRISTOR EXCITER Russian patent published in 1995 - IPC

Abstract RU 2050661 C1

FIELD: electrical engineering. SUBSTANCE: thyristor exciter that has thyristor converter whose input is connected through current transformer to supply mains and its output, to motor field winding, and also pulse-phase control system connected to thyristor converter, and current regulator whose inputs are connected to rectifier in current sensor circuit and to field current setting element, has its rectifier connected to threshold element whose output is connected to protective unit; it is also provided with second comparator; inputs of threshold element and comparator are combined and connected to output of field current regulator, and its outputs are connected to protective unit. EFFECT: provision for reliable monitoring of two emergency conditions in exciter due to introduction of comparator. 1 dwg

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RU 2 050 661 C1

Authors

Ivanov A.G.

Arzamasov V.L.

Mikhajlov V.V.

Maslova M.N.

Dates

1995-12-20—Published

1993-05-25—Filed