MaxPower Corp GE SG Series 10-150kVA - Manual (Page 4)

• Provides Galvanic Isolation of
the Load
• Protects Inverter from Non-
Linear Loads
• Protects Inverter from High Inrush Loads
Space Vector Modulation (SVM)
Space Vector Modulation is the next generation of Pulse Width
Modulation (PWM) inverter control technology. SVM uses an
advanced switching technique for PWM driving Insulated Gate
Bipolar Transistors (IGBT).
Advantages
• Higher Efficiency: Reduces switching losses and improves
partial load efficiency
• Improved Output Performance: Reduces Total Harmonic
Distortion (THD) with non-linear loads and improves transient
response to step loads
• Precise Paralleled System Performance: More accurate load
sharing with multiple units operating in parallel
Superior Battery Management (SBM)
Every GE UPS incorporates a standard feature called Superior
Battery Management (SBM) that can be configured to periodically
test the battery system and calculate true battery runtime using
measured values for temperature and load.
Advantages
• Works With all Battery Types: Flooded, VRLA NiCad, and
Sodium (GE Durathon)
• Online Battery Test: The risk of load loss is prevented by
periodic rectifier/battery testing to insure proper operation
• Increases Battery Life: Monitors all key parameters of the
battery plant to maximize reliability and warn of possible
problems
Digital Signal Processor (DSP)
DSP (Digital Signal Processor) performance enables the high
sampling rates required to achieve the appropriate bandwidth
for the current and voltage controls for an efficient double-
conversion UPS.
• High speed sampling rate for precise RPA control.
• Faster transient response time
• Redundant high speed communication
• All digital controls for increased reliability and stability
• All system control parameters are adjustable from the
front panel
Zig Zag Output Transformer
The ZigZag transformer enables the UPS to run with heavily
unbalanced loads while supplying full kVA output capacity at
100% non-linear load.
The secondary windings of the output transformer form a
ZigZag pattern to cancel triplen (third order) load harmonics.
This reduces neutral conductor loading and losses in all the
conductors and the input transformer.
Innovative Product Technology
SBM - UPS Battery Management and Test
SBM s a comprehensive and programmable management and monitoring system that protects the UPS battery string life.
Batteries are prevented from overcharging and deep discharging.
• Calculates true battery autonomy and remaining battery
backup time during utility outage.
• Measures the volts per cell of the battery system and
compensates for temperature and load
• During UPS startup, the SBM is programmed with specific
battery information
• Programmable features allow the user to select the frequency
and type of battery tests that are performed. Frequency range
can be from once per week to annually. Test type range can
be from deep cycle to 3-min discharges.
• All tests logged in the UPS events menu and any failure is
reported on the UPS front alarm panel.
• All tests done automatically
with the UPS on-line.
• Manual tests can be
performed at any time.
• Remote programming and
configuration is available
through the SG Series UPS
protection software.