Plus
INTRODUCTION TO THE UR
Firmware architecture
4
-SERIES
Plus
The D90
is organized into six major functions.
•
Protection.
•
Automation.
•
Metering.
Plus
Figure 1: D90
block diagram
Plus
Figure 2: D90
hardware overview
PLUS
D90
LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
CHAPTER 1: GETTING STARTED