EPS Emergency Supply
Product Overview:
LCX Power-HEPSG industrial frequency impact-resistant emergency power supply adopts power-frequency inversion topology with built-in isolation transformer and full digital DSP control.
The inherent electromagnetic inertia of the power-frequency transformer enables strong capability to withstand large inrush current when motor loads start up.
Under normal mains condition, loads are powered by utility power, and the integrated intelligent charger performs floating charge maintenance for battery packs.
Once mains power failure or voltage abnormality occurs, the system switches rapidly to battery inversion and outputs stable pure sine-wave AC.
It is specially designed for inductive motor loads such as fire exhaust fans and water pumps, and can absorb instantaneous current surge during motor startup.
With excellent electrical isolation, anti-interference and harmonic suppression performance, it adapts to harsh industrial power environments.
Emergency backup duration is customizable, compatible with lead-acid and lithium iron phosphate batteries.
Typical Applications:
· Fire smoke exhaust fan, fire water pump, fire shutter and other motor-type fire emergency loads.
· Tunnel, underground pipe gallery, chemical plant, refinery industrial emergency power supply.
· Subway, large commercial complex, hospital fire motor equipment backup power.
· Factory workshop, pumping station, ventilation equipment emergency power guarantee.
· Elevator, large HVAC equipment emergency standby power for industrial buildings.
· Mining, metallurgy and other sites with poor power grid quality and large motor starting impact.
Technical Specifications:
1. Topology & Structural Design Power-frequency inversion topology with built-in isolation transformer, full digital DSP closed-loop control. The transformer provides galvanic isolation and electromagnetic buffering. Strong inrush current resistance, capable of enduring 3~7 times rated instantaneous starting current of motor loads. Support N+1 parallel expansion for large-capacity projects.
2. Electrical Performance
· Wide-range AC input voltage, adapt to poor and fluctuating industrial power grid
· Pure sine wave AC output, THD ≤3%
· Mains to emergency switching time ≤200ms, meet fire protection standard requirements
· Output voltage precision ≤±1%FS; strong overload and impact load capacity
· Stable output under motor startup surge, avoid voltage dip
· Emergency working time customizable, compatible with LiFePO4 & lead-acid batteries
3. Complete Multi-level Protection Input overvoltage/undervoltage protection; output overvoltage, overcurrent, short-circuit, over-temperature protection; battery over-charge, over-discharge, over-temperature protection; overload protection and EPO emergency power-off function. Fault recording and acousto-optic alarm function.
4. Battery Management Built-in intelligent charging management with charging voltage temperature compensation. Real-time monitoring of battery voltage, current and temperature; automatic battery fault warning, support external battery cabinet expansion.
5. HMI & Communication Interface Color LCD display with Chinese & English menu, real-time display input/output parameters, battery state, emergency running time and alarm logs. Standard RS485, dry contact; 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℃. Cabinet with good electromagnetic shielding, anti-interference, suitable for power distribution room, pump house, chemical workshop and other harsh industrial environments.
Technical Parameters and Selection
Technical Parameters and Selection
