Communications processor for electric power substations

Details Communications processor for electric power substations Communications processor for electric power substations

1995-04-07

1997-10-21

Chin, Wellington

Boots, shoes, and leggings

364273, 364492, 364489, 34087002, 34087011, G06K 1500, H02H 300

Patent

active

056803249

ABSTRACT:
The communications processor includes an electronic network system which includes a total of 17 individual ports, four quad universal asynchronous receiver/transmitter devices, each of which serves four separate ports, and a microprocessor which processes and controls the flow of data under the control of stored control programs, command settings and command logic. Connected to a plurality of those ports referred to as IED ports are intelligent electronic devices IEDS, such as protective relays or meters, while connected to other ports, referred to as master ports, are remote terminal units or a local computer or terminal or a modem which can be connected to an external telephone line. The apparatus includes both buffer and long-term storage for development of a database, as well as an IRIG-B capability for synchronization of the time clocks of the connected devices.

REFERENCES:
patent: 4972290 (1990-11-01), Sun et al.
patent: 5160926 (1992-11-01), Schweitzer, III
patent: 5224011 (1993-06-01), Yalla et al.
patent: 5428553 (1995-06-01), Chiba et al.

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