System of communicating output function status indications betwe

Details System of communicating output function status indications betwe System of communicating output function status indications betwe

1996-05-29

1998-08-11

Hsu, Alpus H.

Multiplex communications

Diagnostic testing

Fault detection

361 64, H02H 726

Patent

active

057937508

ABSTRACT:
The communication system includes transmitting output status bits indicative of a function of the relay directly from one microprocessor-based protective relay in a power system to a second companion microprocessor-based relay. Each relay has transmit and receive modules connected by a communications link, with the transmit and receive modules using the logic output and input bits produced by the respective relays in their respective relay calculations.

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