GE D90 Plus - Page 5

D90
PLUS
LINE DISTANCE PROTECTION SYSTEM – COMMUNICATIONS GUIDE 1
D90
Plus
Line Distance Protection System
Chapter 1: Introduction
Introduction
This document outlines the communications protocols for the D90
Plus
Line Distance
Protection System. It is intended for customers who need detailed knowledge of the
D90
Plus
implementation of the communications protocols, for example to design a client or
to troubleshoot an interoperability issue. Use this guide with the Instruction Manual for the
product.
This chapter outlines safety and technical support information.
Safety symbols and definitions
Before attempting to install or use the device, review all safety indicators in this document
to help prevent injury, equipment damage, or downtime.
The following safety and equipment symbols are used in this document.
DANGER
Indicates a hazardous situation which, if not avoided, will result in death or serious
injury.
WARNING
Indicates a hazardous situation which, if not avoided, could result in death or serious
injury.
CAUTION
Indicates a hazardous situation which, if not avoided, could result in minor or
moderate injury.
NOTICE
Indicates practices not related to personal injury.
For further assistance
For product support, contact the information and call center as follows:
GE Grid Solutions
650 Markland Street
Markham, Ontario
Canada L6C 0M1