Arrangement for providing auxiliary energy source for static inv

Details Arrangement for providing auxiliary energy source for static inv Arrangement for providing auxiliary energy source for static inv

1977-09-15

1979-03-20

Schaefer, Robert K.

Electrical transmission or interconnection systems

Plural supply circuits or sources

Substitute or emergency source

320 1, 307 9, H02J 900

Patent

active

041456181

ABSTRACT:
A high voltage power supply system for energizing a static inverter, in which an auxiliary circuit provides a source of reserve energy to sustain inverter operation during periods of power interruption. In the auxiliary circuit, there is provided a capacitance normally charged from the source of power (catenary) via a resistance whose ohmic value assures a slow rate of charge to avoid blowing the input fuse in the event of a short in the auxiliary circuit capacitance and to permit use of the desired capacitance with a reduced voltage rating. A diode arrangement statically connects the higher of the catenary voltage or the stored energy reserve of the auxiliary circuit to the inverter.

REFERENCES:
patent: 3262018 (1966-07-01), Bogaerts et al.
patent: 3784841 (1974-01-01), Hosaka
patent: 4041324 (1977-08-01), Tashiro et al.

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