48VDC-380VAC 3 phase 20KW low frequency power inverter

Input Characteristics: Rated DC input voltage of 48V, supporting an ultra-wide voltage range (e.g., 42V-100V or customised range), capable of adapting to extremely low voltage scenarios as low as 42V, ensuring stable output even under battery under-voltage conditions.
Output Characteristics: Rated output power 20kW, output voltage 380VAC (three-phase), frequency adjustable 50Hz/60Hz, pure sine wave output (THD ≤3% for linear loads), dynamic response time ≤50ms, power factor ≥0.99, efficiency ≥88%.
Line-frequency transformer: Utilises a line-frequency isolation transformer to achieve complete AC/DC isolation, effectively suppressing harmonic interference and enhancing system surge resistance. Supports inductive loads such as motors and water pumps (e.g., automatic recovery after 10 seconds at 115% overload).

Ultra-low voltage input capability: Through wide voltage input design (e.g., 42V-100V) and intelligent boost technology, it ensures full power output even during deep battery discharge or fluctuating PV input, preventing shutdowns caused by insufficient voltage.
Anti-interference design:
Electromagnetic compatibility (EMC) design: Shielded enclosure and optimised grounding, certified to CE (EMC/LVD) standards, meeting industrial-grade anti-interference requirements.
Dynamic Current-Loop Control with SVPWM Algorithm: Reduces switching noise and suppresses harmonic distortion to ensure pristine output waveforms.
Multi-Layer Protection Mechanisms: Input over/under-voltage, output overload/short-circuit, overtemperature, fan failure, and lightning protection. Supports RS485/CAN communication interfaces for remote monitoring.
High reliability and durability: Utilises IPM smart modules (e.g., Mitsubishi 6th generation IPM) and power frequency topology, supporting operation across -25°C to 50°C with altitudes ≤3000m (derating required). Service life extends to 15 years. Modular design facilitates maintenance.