Page 80 - E24 Electrical Notebook

76 - Uninterruptible Power Supplies

Energy Efficiency TLE 200kW UPS EFFICIENCY
TLE SeriesTM delivers efficiency up to 96.5% in double conversion (VFI)
GE’s TLE SeriesTM UPS is one of the most energy efficient double- mode and 99% in eBoost operating mode
conversion UPS in the industry, and provides world-class energy efficiency
across the operating load range. The TLE SeriesTM delivers efficiency up 98
to 96.5% in double conversion mode and 99% in eBoost operating mode.
This system efficiency substantially reduces operating and cooling costs, EFFICIENCY % 95
thus providing a reduced cost of ownership and improved power usage
effectiveness (PUE) compared to conventional UPS. typical
GE’s UPS performance is optimized at 50-75% load operation, as this is operating load
the most common operating range. The optimization of the TLE Series
includes selecting all major power chain components based on 92
maximizing the component efficiency at part load conditions.
High Efficiency TLE SeriesTM UPS Provides: 89
• Substantial reduction in operating cost of UPS
• Reduced energy loss minimizes air conditioning requirement 86
• Energy savings from reduced cooling
83
True Redundancy with Distributed Control & Bypass
80 50% 75% 100%
25%
LOAD

TLE VFI Mode TLE eBoost Mode

UPS2 UPS1 UPS3

Utility TLE Series Power Capability
Critical Load
Redundant Unity output power factor, full power for critical load without de-rating for
Comm Bus actual and future IT loads.

ACTIVE POWER (kW)

Configurable up to 6 units in parallel LEADING POWER FACTOR LAGGING
POWER FACTOR

RPA (Redundant Parallel Architecture) Output Performance

Input Performance Total Harmonic Distortion (THD)
A distorted output voltage waveform can affect the proper function of
Clean Input Performance equipment. The TLE SeriesTM has very low output voltage THD, even
The TLE Series IGBT based rectifier and innovative control algorithm when connected to 100% unbalanced or non-linear loads.
ensures an input Total Harmonic Distortion (THDi) of less than 3% and
draws a pure sinusoidal waveform from the mains. This also provides Output Power Factor = 1
UPS input power factor of 0.99.
• TLE Series with unity output power factor provides more output
Advantages power. Output power factor diagram symmetrical with respect to zero.
100% kW – no de-rating with any load
• Saving in the sizing of upfront equipment e.g. emergency generators,
cablings, & circuit breakers • Suitable for modern power supply applications with unity or capacitive
power factor (e.g. new generation servers), or up to 3:1 crest factor loads
• No disturbances to nearby equipment; eliminate perturbation &
outage on upfront electrical equipment, avoiding also any Transient Response
investigation & analysis cost due to malfunction Transient response is very fast due to control algorithms which ensure
very high dynamic stiffness. This reduces the need to oversize the UPS
Programmable Soft Start for pulse load applications.
The programmable soft start allows the rectifier to ramp up in a
programmable time period (0-15 seconds) thus eliminating in-rush
current. This feature reduces the need of oversizing the input power
system (gensets, feeder cables, and overcurrent devices).

Generator Compatibility
User-programmable features such as slew rate, phase angle rate-of-
change and voltage rate-of-change allow the UPS to quickly sync to a
genset during emergency back-up.

Unity output power factor, full power for critical load without de-rating for
actual and future IT loads.

GE Industrial Solutions Tel : 0800 587 1251

3 Oakland Road Fax : 0800 587 1239

Leicester

Leicestershire

LE2 6AN Website : www.ge.com/uk/industrialsolutions