PQube 3 Instruction Manual
Page 45 of 103
Energy:
These three meters show the total energy, apparent energy, and reactive
energy.
Class A:
You will find additional power quality parameters as defined in IEC 61000-
4-30 Class A, the international standard for power quality measurement methods.
Flicker:
These meters show flicker according to IEC 61000-4-15 Edition 2 methods.
P
inst
is the instantaneous flicker value for Incandescent Flicker. P
ST
is the short term
flicker, a statistical analysis of Pinst after 10 minutes, synchronized to real-time
clock. P
LT
is the mean value of P
inst
over previous 2 hours, synchronized to real-time
clock.
Unbalance:
These meters show the voltage unbalance and the current unbalance.
You choose in your
Setup.ini
file whether your PQube calculates unbalance using
the ANSI C84.1 method, or the IEC method, or the GB method.
Harmonics:
Use this screen to view every harmonic up to the 50
th
for both voltage
and current. Select one harmonic at a time. The selected harmonic applies to all
channels. (Harmonic values up to the 63
rd
are recorded in your PQube 3’s CSV files.)
Shop for Power Metering products online at:
1.877.766.5412
www.
PowerMeterStore
.ca
