Electricity: power supply or regulation systems – Output level responsive – Phase controlled switching using electronic tube or a three...
Patent
1995-04-26
1996-07-16
Nguyen, Matthew V.
Electricity: power supply or regulation systems
Output level responsive
Phase controlled switching using electronic tube or a three...
361 57, G05F 110, H02H 900
Patent
active
055370268
ABSTRACT:
A power controller (10) and a method for supplying power to a power distribution network (N) in which power from a polyphase source (G) is routed to using equipment (E) connected to the network through the power controller. A plurality of solid-state power devices (82) switch each separate phase of the polyphase power to the equipment. A firing circuit (14) controls gating of the switches to route the power. Fuses (F) are connected between the switches and the using equipment to interrupt power flow to the equipment if excessive current begins to be drawn. Circuit breakers (74) are connected between the power source and the switches to interrupt current flow to the equipment if excessive current is drawn. A control unit (20) controls operation of the controller. The firing circuit includes a master firing unit (164a) and a slave firing unit (164b). These units each enable the switches during each firing interval with the master unit enabling the switches for one portion of the interval, and the slave unit the balance thereof.
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Estes Wayne S.
Russell Carl D.
Emerson Electric Co.
Nguyen Matthew V.
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