Eaton Powerware 9390 Bedienungsanleitung Seite 6
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EATON CORPORATION Eaton 9390 Uninterruptible Power System
5
Low input current THD enhances generator
compatibility
Electronic devices and UPSs are built with some components that
are non-linear. When voltage is applied to a circuit constructed of
non-linear components, the circuit may not respond linearly (current
may not follow the voltage in a linear manner). These components
may even create frequencies other than the fundamental applied
If the power source can’t respond to all frequencies demanded
by the circuit, then further distortion of the applied voltage may
occur—creating more complication. Every UPS produces a level
of harmonics. Unchecked, harmonics can reduce overall power
factor, cause sensitive devices to malfunction, prematurely age
equipment, and cause screens and displays to flicker.
To avoid these negative effects, the 9390 uses a special input
without compromising efficiency. As a result, the 9390 transfers
Power factor performance maximizes compatibility
and meets high power factor load requirements
applied to a circuit and current that the circuit draws in response to
(1.0), or no phase shift between the voltage applied and the circuit
accept power from and deliver power to circuits that have a wide
range of power factors.
readings. Some new servers operate at unity power factor. Lightly
loaded facilities such as brand new data centers, can often show
leading power factor readings.
(PWM) inverter enables the 9390 to provide its full rated power
capability to the load, down to 0.9 leading power factor without
de-rating.
Double-conversion design offers highest available
protection
Unlike other commercially available UPS technologies, the double-
conversion design completely isolates output power from all input
power anomalies and delivers 100% conditioned, perfect sine wave
output—regulating both voltage and frequency, providing protection
from all nine common power problems.
consistent, efficient status without compromising power protection.
Even when presented with the most severe power problems,
is held within two percent of nominal specification for linear loads,
within five percent for non-linear loads—making the 9390 ideal for
supporting equipment that is sensitive to a distorted voltage input
as a result of harmonic loads. In the event of a utility power failure,
there is no delay transferring to backup power.
Advanced battery management optimizes battery
performance and service life
recharge time when compared to traditional trickle charging
and adjusts the charge rate accordingly, which properly charges
battery health and remaining lifetime, providing user notification
to guide preventive maintenance
LOAD POWER FACTOR RANGE CHART
Leading Lagging
-1 -0.75 -0.50 -0.25 0 0.25 0.50 0.75 1
kVAr
kW
PF=0.9
100% kW
PF=1
PF=0.9
PF=0.8
Most competitors
UPSs must derate
30-40% to support
loads in this range
Without derating
1
0.75
0.50
0.25
Many competitive
UPSs cannot operate
in this range without
significant derating
V1
V2
Full range of load power factor
Performance features to maximize
compatibility
Verwandte Produkte und Handbücher für Stromverteilungseinheiten (PDUs) Eaton Powerware 9390
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