1–4
PQM POWER QUALITY METER – INSTRUCTION MANUAL
INTRODUCTION
CHAPTER 1: OVERVIEW
FIGURE 1–3: Single Line Diagram
823768A2.CDR
4
OUTPUT
RELAYS
4
TRANSDUCER
OUTPUTS
4
3
2
1
COM 2
RS232
PORT
COM 1
4 SWITCH
INPUTS FOR
CONTROL
-
4-20mA
ALARM
CONTROL
INSTRUMENTATION
ELECTRICAL
MAINTENANCE
MAIN
SCADA
3 PHASE
3/4 WIRE BUS
CTs
VTs
0-600V DIRECT
>600V CT/VTs
AC/DC
CONTROL
POWER
PLC
or
RTU
PQM RELAY