Digital protection and control device and method thereof

Details Digital protection and control device and method thereof Digital protection and control device and method thereof

2006-07-04

2006-07-04

Patel, Ramesh (Department: 2121)

Data processing: generic control systems or specific application

Generic control system, apparatus or process

Sequential or selective

C700S021000, C700S079000, C700S286000, C700S291000, C700S295000, C713S154000, C713S155000, C713S168000, C713S300000, C713S310000

Reexamination Certificate

active

07072722

ABSTRACT:
The present invention provides a digital protection and control (P & C) device for a power distribution network, which comprises a control unit and human-machine interface (HMI) for allowing a user access to the control unit. The control unit comprises a microprocessor that exchanges data information with the HMI. The digital P & C device, according to the present invention, further comprises a user authentication mechanism for regulating the access of a user to the control unit. This user authentication mechanism comprises an electronic authentication device, associable with the mentioned HMI, which stores first predefined data/information. This first predefined data/information comprises at least a user identification code, for establishing the identity of a user; and a user access code, for establishing the access mode of the user to the control unit. In addition, the electronic authentication device is able to communicate with the control unit, when it is associated with the HMI of the digital P & C device.

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