Interfaces; Front Panel Overview - GE D90 Plus Instruction Manual

Line distance protection system

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Table of Contents

Chapter 4: Interfaces

LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL

Line Distance Protection System

Interfaces

This section describes the methods of interfacing with the D90

The front panel provides a convenient means to interface with the D90

interface consists of a color LCD display (annunciator) and two sets of user-programmable

pushbuttons. This interface provides immediate access to all major D90

There are three groupings of pushbuttons. The pushbuttons located at the bottom of the

display are for navigation, while the pushbuttons located at both sides of the display are

dedicated for control functions.

The annunciator is a color LCD display that provides alarm and trip information. The

annunciator also provides indication of any active self-diagnostic messages and includes

a product information screen.

Figure 40: Front panel interface

. The front panel