6
Introduction
Table 1-1 Measured Quantities and Sensed Signals
Measurement Mode
Usage/output
Parameter
Real-
time
Sliding
average
Demand Min/
Max
Display Commu-
nications
Analog
output
Pulse
Data
logging
Trigger
setpoint
Total power factor lead
•
•
•
•
•
•
•
Auxiliary measurements
Auxiliary current (ground
leakage/neutral current)
•
•
•
•
•
•
•
•
Neutral current (calculated)
•
•
•
•
•
•
•
•
Frequency
•
•
•
•
•
•
•
•
Voltage unbalance
•
•
•
•
•
•
•
•
Current unbalance
•
•
•
•
•
•
•
•
Low values on any phase
Low voltage (L-N/L-L)
À
•
•
•
•
•
Low current
•
•
•
•
•
Low kW
Á
•
•
•
•
•
Low kvar
Á
•
•
•
•
•
Low kVA
Á
•
•
•
•
•
Low power factor lag
Á
•
•
•
•
•
Low power factor lead
Á
•
•
•
•
•
Low voltage THD
Â
•
•
•
•
•
Low current THD
•
•
•
•
•
Low K-Factor
•
•
•
•
•
High values on any phase
High voltage (L-N/L-L)
À
•
•
•
•
•
High current
•
•
•
•
•
High kW
Á
•
•
•
•
•
High kvar
Á
•
•
•
•
•
