Extech Instruments 380801, User Manual

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380801/803 Version 4.0 7/05 16
Glossary of Terms
W True Watt
PF Power Factor
V True RMS Voltage
A True RMS Ampere
Phase angle Time difference between V and A calculated by
cos-1 (Power Factor)
VA Apparent Power (V * A)
VAR Reactive Power (SQRT [VA
2
– W
2
])
IR Equivalent current (through equivalent resistance)
Req Equivalent resistance
IL Equivalent current (through equivalent inductance)
XL Equivalent impedance of equivalent inductance
Leq Equivalent inductance
CAP Required capacitance
CR Carriage Return
LF Line Feed
EPS Datalogger Memory Self-test
EPE Erasing Datalogger Memory
W3
φ
True Power (3
φ
3W)
WRS Power of R phase with respect to S phase
WTS Power of R phase with respect to S phase
VA3
φ
Apparent Power (3
φ
3W and Balanced Load)
VAR3
φ
Reactive Power (3
φ
3W and Balanced Load)
PF3
φ
Power Factor (3
φ
3W and Balanced Load)
Mean Mean Value
Std Dev Standard Deviation
Best Fit A line drawn to fit a curve with minimum error
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