MaxPower Corp GE SG Series 10-150kVA - Manual (Page 5)

Input Performance
Robust Rectifier for Wide Input Range
The wide AC input voltage and frequency window avoids
unnecessary battery discharge even when operating from
an unstable AC source (i.e. diesel generator).
Programmable Soft Start
Allows the rectifier to ramp up in a programmable time period
(0-30 seconds) eliminating in-rush current. This feature
reduces the need of oversizing the input power system
(gensets, feeder cables, and overcurrent devices).
Smart Input Filters, <7 % THDi
GE offers an optional internal input filter with the SG Series
UPS. The “smart” filter has a programmable feature that
allows the filter to be switched off during start-up and low
load conditions, preventing leading power factor (PF).
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. GE’s
optional input filter also has user-programmable features
ensuring quick and continuous synchronization to generator
voltage.
High Performance
Output Performance
Total Harmonic Distortion (THD)
A distorted output voltage waveform affects the proper
function of the load’s equipment. The SG Series has very
low output voltage THD, even with connected 100%
unbalanced or 100% non-linear loads.
Transient Response
With the use of SVM and the ZigZag transformer, the GE UPS
can react very quickly to zero-100% step loads (within 1/3
cycle). This reduces the need to oversize the UPS for severe
pulse-load applications.
Overload Capabilities
The SG Series UPS has a robust inverter capable of delivering
150% overload for 60 seconds.
Phase Load Imbalance
The UPS Output ZigZag transformer, via its inherent
characteristics and windings configuration, provides
excellent voltage regulation against phase-to-neutral
(Ph-N) load imbalances.
UPS Module Power Paths