Transformerless UPS
Product Overview:
LCX Power-HUPS high-frequency transformerless uninterruptible power supply adopts true online double-conversion architecture without traditional power frequency isolation transformer.
It uses IGBT high-frequency PWM rectifier + full digital DSP control and active PFC technology.
Compact, lightweight and low power consumption compared with traditional transformer UPS.
It continuously outputs high-quality pure sine-wave AC. When mains power fails, it realizes zero switching to battery power supply, protecting critical loads from grid surges, voltage sags, spikes and power outage risks.
Modular design supports N+1 parallel redundancy, compatible with lead-acid and lithium iron phosphate batteries.
It is widely used for reliable power protection of precision equipment in data room, industrial control, communication and other fields.
Typical Applications:
· Server room, small data center, network switch, storage equipment power protection
· Industrial automation, PLC, CNC controller, precision instrument uninterrupted power supply
· Communication room, base station core network equipment backup power
· Medical inspection, laboratory precision test instrument power guarantee
· Financial monitoring, security video, fire alarm critical control equipment
· New energy control cabinet, off-grid system control unit power backup
Technical Specifications:
1. Topology & Structural Design True online double-conversion, transformerless high-frequency topology. IGBT high-frequency PWM rectifier, full digital DSP closed-loop control, active PFC. Small footprint, light weight, low heat generation. Support N+1 parallel redundant expansion.
2. Electrical Performance
· Wide AC input voltage & frequency range, adapt to unstable power grid
· Output pure sine wave, THD ≤3%（linear load）
· Mains to battery transfer time: 0ms, load no power-off
· Output voltage precision ≤±1%FS; power factor up to 0.9/1.0 optional
· High operating efficiency, ECO energy-saving mode available
· Support customizable backup time, compatible with LiFePO4 & lead-acid batteries
3. Complete Multi-level Protection Input overvoltage/undervoltage, phase loss protection; output overvoltage, overcurrent, short-circuit, over-temperature protection; battery over-charge, over-discharge, over-temperature protection; overload protection, EPO emergency power off function.
4. Battery Management Built-in intelligent battery charge management, automatic temperature compensation for charging voltage. Real-time battery state monitoring, battery fault alarm, support external battery pack expansion.
5. HMI & Communication Interface Color LCD screen with Chinese & English menu, real-time display input/output parameters, battery status and alarm logs. Standard RS485, dry contacts; optional Ethernet/SNMP, support remote monitoring and unattended management.
6. Cooling & Environmental Adaptability Intelligent temperature-controlled fan cooling, fan speed automatic adjustment. Operating temperature: 0℃ ~ +40℃. Low noise design, suitable for indoor machine room, control cabinet environment.
Technical Parameters and Selection
Technical Parameters and Selection
