Electrical transmission or interconnection systems – Plural supply circuits or sources – Substitute or emergency source
Patent
1975-09-26
1977-04-26
Beha, Jr., William H.
Electrical transmission or interconnection systems
Plural supply circuits or sources
Substitute or emergency source
321 19, 321 45S, H02J 906
Patent
active
040203603
ABSTRACT:
In an inverter having a control unit with a drive unit and a control device, an enabling unit for firing pulses is coupled between the inverter and the control unit. In standby operation the enabling unit blocks the transmission of firing pulses while the drive unit and control device continue to operate. Furthermore, during standby operations, measures are taken to feed a control voltage to the drive unit which is correct for any starting instant so that upon a starting command, a command unit causes the enabling unit to enable the transmission of the firing pulses to the inverter.
REFERENCES:
patent: 3227940 (1966-01-01), Gilbert et al.
patent: 3229111 (1966-01-01), Schumacher et al.
patent: 3366797 (1968-01-01), Baude
patent: 3848175 (1974-11-01), Demarest
Beha Jr. William H.
Siemens Aktiengesellschaft
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