Electrical transmission or interconnection systems – Plural supply circuits or sources – Circulating- or inter-current control or prevention
Patent
1975-04-07
1976-08-31
Goldberg, Gerald
Electrical transmission or interconnection systems
Plural supply circuits or sources
Circulating- or inter-current control or prevention
307 82, 307 87, 321 45C, 315160, H02J 338, H02M 717
Patent
active
039783464
ABSTRACT:
A resistor is provided in parallel with a first coil. By suspending the supply of a DC current to the first coil while the DC current is flowing through the first coil, a high DC voltage is generated across the resistor and the high DC voltage is applied to a second coil to allow a fast-rise current to flow therethrough. Reverse current blocking means is provided between the first and second coils to prevent a DC current from flowing back via the first coil when the second coil is supplied with a DC current. Currents flowing through the first and second coils can be controlled independently.
REFERENCES:
patent: 3462672 (1969-08-01), Knapp et al.
patent: 3566186 (1971-02-01), Woolsey
patent: 3748560 (1973-07-01), Sawa et al.
Goldberg Gerald
Hitachi , Ltd.
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