GE Power Quality Meter Series Instruction Manual page 16

1.2 STANDARD FEATURES
b) CONTROL OPTION
1
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.
1-6
PQM
4
SWITCH
INPUTS
PQM Power Quality Meter
STATUS COMMUNICATE RELAYS
ALARM TX1
PROGRAM RX1
SIMULATION TX2
SELF TEST RX2
Figure 1–5: SWITCH INPUTS AND OUTPUTS RELAYS
PQM Power Quality Meter
DCS
RS485
MODBUS
RELAYS
ALARM
AUX1
AUX2
AUX3
1 OVERVIEW
4
ALARM
AUX 1
AUX 2
AUX 3
823775A6.DWG
GE Power Management