Satec System 295 - Measurement Capabilities

Introduction 5
1.3 Measurement Capabilities
Table 1-1 lists quantities and signals measured, calculated and sensed by the PM295. Measurement readings can be
accessed via the front panel and communications. These readings can also be transferred through internal analog and
relay outputs, and used as triggers for alarm/event setpoint operations. Ranges and full scale values for measurement
parameters are summarized in technical specifications (see Chapter 6). Chapter 3 describes measurement functions and
modes of measuring input values.
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
Per phase Measurements
Voltage (L-N/L-L) À
• • • • • • • • •
Current
• • • • • • • • •
kW Á
• • • • • • • •
kvar Á
• • • • • • • •
kVA Á
• • • • • • • •
Power factor (signed) Á
• • • • • • • •
Voltage THD Â
• • • • • • • •
Current THD
• • • • • • • •
K-Factor
• • • • • • • •
Three-phase total measurements
Total kW
• • • • • • • • •
Total kvar
• • • • • • • • •
Total kVA
• • • • • • • • •
Total power factor signed
• • • • • • • •
Total power factor lag
• • • • • • •