GE Power Quality Meter Series

1-6 PQM Power Quality Meter GE Power Management
1.2 STANDARD FEATURES 1 OVERVIEW
1
b) CONTROL OPTION
An additional three dry-contact form “C” output relays and four dry-contact switch inputs are provided. These
additional relays can be combined with setpoints and inputs/outputs for control applications. Possibilities
include:
• undercurrent alarm warnings for pump protection
• over/undervoltage for generators
• unbalance alarm warnings to protect rotating machines
• dual level power factor for capacitor bank switching
• underfrequency/demand output for load shedding resulting in power cost savings
• kWh, kvarh and kVAh pulse output for PLC interface
• Pulse input for totalizing quantities such as kWh, kvarh, kVAh, etc.
Figure 1–5: SWITCH INPUTS AND OUTPUTS RELAYS
DCS
RS485
MODBUS
4
RELAYS
ALARM
AUX 1
AUX 2
AUX 3
4
SWITCH
INPUTS
823775A6.DWG
PQM
STATUS COMMUNICATE RELAYS
SIMULATION
ALARM
SELF TEST
PROGRAM
TX2
TX1
RX2
RX1
AUX2
ALARM
AUX3
AUX1
PQM Power Quality Meter