2.3 Features
*Automatic Solar Charging When the Inverter is Powered Off
*Auto Generator Start
*Smart remote monitor with Wi-Fi or GPRS Module
*Manual 50Hz/60Hz output frequency switch for worldwide operation
*Maximum THD: 3% at nominal battery voltage
*Powerful 4-stage power factor corrected battery charger up to 100 Amps, settable from 0%-100%
*High surge output capability, 300% peak load for 5 seconds
*Ultra low quiescent current, low power ‘Power Saver Mode’ to conserve energy
*Equilization Charging
*10 ms transfer time from AC to battery for the continuous load operation
*Thermally controlled variable speed fan for more efficient cooling
*Extensive protections against various harsh situations
*Solar Priority or SBU developed for renewable energy systems
2.4 Electrical Performance
2.4.1 Invert
Topology
The M Series pure sine wave inverter/charger is built according to the following topology.
⚫ Invert: Full Bridge Topology.
⚫ Charge: Isolated Boost Topology
When operating in invert mode, the direct current (DC) that enters the inverter from the batteries is filtered
by a large input capacitor and switched “On” and “Off” by the Metal Oxide Silicon Field Effect Transistors
(MOSFET) at a rate of 50 Hz or 60Hz and directed into the transformer which steps the voltage up to 230 or
120 volts. The unit has a powerful microprocessor to control the output voltage and frequency as the DC
input voltage and/or output load varies.
Because of high efficiency MOSFETs and the heavy transformers, it outputs PURE SINE WAVE AC with
an average THD of 7% (min 3%, max 10% under full linear loads) depending on the load connected and
battery voltage.
The peak invert efficiency of M Series is 85%.
The inverter must be connected to batteries to power on.
Overload Capacity
1 For 100%<Load<120%, Fault (Power off) after 10 seconds.
2 For 120%<Load≤300%, Fault (Power off) after the 5 seconds.
Soft Start in Inverter Mode
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