Title:
ELECTRIC POWER SUPPLY SYSTEM
Document Type and Number:
Japanese Patent JP3472327
Kind Code:
B2
Abstract:
PURPOSE: To provide an excellent electric power supply system of a long life in which an electric power from a commercial power supply and a generated electric power from a generator means are effectively utilized with simple constitution, and maintenance is not required.
CONSTITUTION: This is an electric power supply system S in which an electric power is supplied to a load L from a commercial power supply 1 and a generator means 5 provided in parallel with the commercial power supply 1, and which system S is provided with an electric power detecting means 2 for detecting an electric power supplied to a load L from the commercial power supply 1 and the generator means 5, and also an electric power control means 4 for limiting electric power supply from the commercial power supply 1 when a greater service electric power than a reference service electric power is detected by the electric power detecting means 2. corresponding to the output of the electric power connector, the three-phase electric variable and a command limitation value A are compared with each other, thereby limiting each antiphase command value and at the same time preferentially outputting each positive-phase command value without limiting it and limiting each positive-phase command value and at the same time preferentially outputting each antiphase command value without limiting it.
Inventors:
Shinichiro Watari
Application Number:
JP30024893A
Publication Date:
December 02, 2003
Filing Date:
November 30, 1993
Export Citation:
Assignee:
Kyocera Corporation
International Classes:
H01L31/04; H02J3/38; (IPC1-7): H02J3/38; H01L31/04
Domestic Patent References:
| JP5108176A | ||||
| JP63239513A | ||||
| JP61167341A | ||||
| JP59169329A | ||||
| JP51137528U |
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