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App 4-1
IM CW140-E
Terminology
App
Appendix
Appendix 4. Terminology
The following table lists terms and symbols shown on the CW140 screen.
Symbol
Item
Description
V
Effective value
Vrms
A (I)
Effective value
Arms
W (P)
Active power
Var (Q)
Reactive power 1
With reactive power method
Var (Q)
Reactive power 2
Without reactive power method
VA
Apparent power
PF
Power factor
PA
Phase angle
+Wh
Active energy
–Wh
Regenerative energy
+Varh
Lagging reactive energy
–Varh
Leading reactive energy
UR
Unbalance factor
THD
Total harmonic distortion
(IEEE/CSA)
F (f)
Frequency
Crest factor
VT
Voltage transformer
(Same as PT)
CT
Current transformer
Summary of Contents for CW140
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