Device for exciting synchronous machine

Details Device for exciting synchronous machine Device for exciting synchronous machine

1979-07-30

1981-10-27

Salce, Patrick R.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Load shunting by fault responsive means

322 68, 361 56, 361 91, H02H 706, H02H 709

Patent

active

042977398

ABSTRACT:
A device for exciting a synchronous machine, comprises an exciter electrically connected to an exciting winding of the synchronous machine, a starting unit connected in parallel with the exciter and comprising at least one branch having a resistor and a thyristor switch placed in series. The control circuit of the thyristor switch has a threshold element. A protective thyristor is placed parallel to the branch of the starting unit and its control electrode is connected via the commutator of a current sensor of the starting unit branch to the control circuit of the protective thyristor. A safety device is inserted in series into the starting unit branch circuit.

REFERENCES:
patent: 3215896 (1965-11-01), Shattuck et al.
patent: 3314001 (1967-04-01), Brockman
patent: 3475653 (1969-10-01), Odenberg et al.
patent: 4118749 (1978-10-01), Matuzaki et al.
Vershinin, et al. (Employment of Synchronous Electric Drives in Metallurgy) Moscow, Metallurgia Publishers, 1974, pp. 124 and 130.
Exciters TE 8-320/5, Catalogue No. 05.03.145-77, Informelectro Publishers, pp. 4-5.

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