Feixiangda T3000 Series 300KVA Three Phase Industrial Frequency Online UPS

Product Overview

The Feixiangda T3000 Series 300KVA three phase industrial frequency online UPS is a high-power uninterruptible power system engineered for mission-critical industrial loads. Built on an Online Double Conversion topology, incoming utility power is rectified to DC to float-charge the battery bank, then inverted back to clean, stable sine-wave AC — achieving complete electrical isolation between output and input while suppressing grid harmonics, surges and voltage fluctuations. Control is handled by a high-speed DSP digital chip with ASIC DDC technology, paired with high-power IGBT rectifier and SCR inverter devices, delivering high precision, fast response and rock-solid stability. A built-in output isolation transformer reduces load harmonic current and grid interference, protecting downstream precision equipment.

Key Technical Specifications

Rated capacity 300KVA / 240KW; three-phase input / three-phase output (3P+N+G); input voltage 380VAC ±25%, frequency 50/60Hz ±10%; bypass voltage 380VAC ±15%; inverter/bypass transfer time 0ms (synchronous), <4ms (out-of-sync); output voltage stability ±1% (steady state); pure sine wave output with THD <2% (linear load) and <4% (non-linear load); overall efficiency ≥93%, up to 98% in ECO mode; overload capacity: transfer to bypass after 10 min overload, or 1 min at 125% / 150%.

Key Features

· Dual Static Switch Zero-Transfer Technology: 12 SCRs each on the inverter and bypass sides enable dual non-contact static switching — 0ms synchronous transfer with continuous, smooth output waveform.
· N+X Parallel Redundancy: Supports multi-unit parallel operation; if one unit fails, the remaining units take over at 0ms, adding dual protection for critical loads.
· Intelligent Battery Management: Auto-adjustable 1A–50A charger with automatic battery maintenance, periodic charge/discharge cycling and auto-alarm, extending battery service life.
· 100% Unbalanced Load Capability: Three-phase independent modulation with full-bridge inverter technology ensures stable output even at 100% unbalanced load.
· Full Digital HMI: 7" / 10" touch screen LCD, bilingual Chinese/English, displaying 200+ real-time operating parameters and fault messages.
· Comprehensive Protection: Short circuit, over-voltage, under-voltage, phase loss, overload and battery low-voltage protection, with audible & visual alarms (Green = Normal, Yellow = Battery mode, Red = Maintenance alarm).
· Remote Monitoring: Standard RS232 / RS485 interfaces with network remote monitoring software support.

Typical Applications

Data centers and telecom rooms; precision medical imaging equipment such as 3.0T MRI; industrial automation lines and robotic arms; CNC / SMT precision equipment; financial and transportation information systems; military facilities; intelligent warehousing and quality inspection equipment.

Quality & Service

Founded in 2006, Shenzhen Feixiangda Electronics Co., Ltd. is an industry-and-trade integrated power manufacturer with a 20,000 m² modern factory, fully automated production lines and over 20 years of professional experience in power solutions. Products are CE certified and backed by UPS control software copyrights and multiple utility model patents. We provide a 1-year warranty with lifetime maintenance, and a 24-hour service