YOKOGAWA CW240

App.7-1
IM CW240E
Appendix
App
Appendix 7 Terminology
Symbol Unit Item
Content
U1, U2, U3 V Voltage Input
Uave V Voltage Average Value
I1, I2, I3, I4 A Current Input
lave A Current Average Value
P W Active Power Active power
Q Var Reactive Power Reactive power
S VA Apparent Power Apparent power
PF – Power Factor Power factor
PA ° (deg) Phase Angle Phase angle
+ Wh Wh (Active) Energy Active energy
– Wh Wh Regenerative Energy Regenerative energy
+ Varh Varh Lag Reactive Power Ractive energy
– Varh Varh Lead Reactive Power Ractive energy
THD % Total Harmonic Distortion Ratio Total harmonic distortion
f Hz Frequency Frequency
VT – Voltage Transformer Voltage Transformer
CT – Current Transformer Current Transformer
PLL
Sampling Method
Phase locked loop
PLL Synchronization