Atec Fluke-430 Series - Manual (Page 2)

2 Fluke Corporation Fluke 430 Series II Three-Phase Energy and Power Quality Analyzers
Unified Power Measurement
Fluke’s patented Unified Power Measurement sys-
tem (UPM) provides the most comprehensive view
of power available, measuring:
•
Parameters of Classical Power (Steinmetz 1897)
and IEEE 1459-2000 Power
• Detailed Loss Analysis
• Unbalance Analysis
These UPM calculations are used to quantify
the fiscal cost of energy loss caused by power
quality issues. The calculations are computed,
along with other facility-specific information,
by an Energy Loss Calculator that ultimately
determines how much money a facility loses
due to wasted energy.
Energy savings
Traditionally energy savings are achieved by
monitoring and targeting, or in other words, by
finding the major loads in a facility and optimiz-
ing their operation. The cost of power quality
could only be quantified in terms of downtime
caused by lost production and damage to electri-
cal equipment. The Unified Power Measurement
(UPM) method now goes beyond this to achieve
energy savings by discovering the energy waste
caused by power quality issues. Using the
Unified Power Measurement, Fluke’s Energy Loss
Calculator (see screen shot below) will determine
how much money a facility is losing due to waste
energy.
Unbalance
UPM gives a more comprehensive breakdown of
the energy consumed in the plant. In addition to
measuring reactive power (caused by poor power
factor), UPM also measures the energy waste
caused by unbalance; the effect of unevenly
loading each phase in three-phase systems.
Unbalance can often be corrected by reconnect-
ing loads on different phases to ensure the
current drawn on each phase is as equal as
possible. Unbalance can also be corrected by
installing an unbalance reactance device (or
filter), that will minimize the effects. Correcting
unbalance should be basic good housekeeping
in the facility as unbalance problems can cause
motor failure or shorten equipment life expec-
tancy. Unbalance also wastes energy. Using
UPM can minimize or eliminate that energy
waste, thus saving money.
Harmonics
UPM also provides details of the energy wasted
in your facility due to the presence of harmonics.
Harmonics may be present in your facility due to
the loads you operate or may be caused by loads
in adjacent facilities. The presence of harmonics
in your facility can lead to:
•
overheating transformers and conductors
• nuisance tripping of circuit breakers
• early failures of electrical equipment
Quantifying the cost of wasted energy due to the
presence of harmonics simplifies the return-on-
investment calculation needed to justify purchas-
ing harmonic filters. By installing a harmonic
filter the ill effects of harmonics can be reduced
and energy waste eliminated, resulting in lower
operational costs and more reliable operation.
Useful kilowatts (power) available ____________
Reactive (unusable) power ____________
Kilowatts made unusable by unbalance issues ____________
Kilowatts made unusable by harmonics ____________
Neutral current ____________
Total cost of wasted kilowatt hours ____________
Energy Loss Calculator