On-line UPS
Low-frequency UPS has strong impact and overload resistance competence as a result of isolation transformers built, it’s good load adaptability, and are particularly suit able for inductive loads (such as motors), industrial environments, heavy-duty equipment and harsh environments.
High-frequency UPS does not require a insolation transformer. The input usually has a PFC circuit. The input power factor can reach to 0.99, which is highly efficient, energy-saving, and significantly improves overall efficiency; Small in size and lightweight, suitable for loads such as conventional IT equipment (servers, storage, network devices) and precision instruments.
- High efficiency
- Maintenance free
- Adapt to all kind of load.
- Availble in parallel operation
- Digital control to achieve online double conversion
- Remote control optional – communication interfaces
General Specification of On-line UPS
| MODEL NOS. | DLF-63-30-X* or DGP-63-40-X* |
|---|---|
| - Phase | 3 Phase 4 Wire (3P+N+GE)Option |
| - Power Rating | 10kVA,15kVA,20kVA,30kVA,40kVA,50kVA,60kVA,80kVA,100kVA,120kVA,160kVA,200kVA |
| - Battery Back-up Time | Default: 15-30 Mins; 30 Mins-120 Mins Optional |
| INPUT | |
| - Nominal Voltage | 208Vac...380Vac/400Vac/415Vac...480Vac(L-L) *Select One Voltage Value" |
| - Voltage Swing | Nominal Voltage ±15% |
| - Frequency | 50Hz / 60Hz |
| - Frequency Swing | Nominal Freq. ±10% |
| - Power Factor | 0.8 PF for Low-frequency UPS; 0.99 PF Low-frequency UPS |
| OUTPUT | |
| - Voltage | 208Vac...380Vac/400Vac/415Vac...480Vac(L-L) *Select One Voltage Value" |
| - Voltage Stability | ≤ ±1% Static Mode |
| - Dynamic Voltage Transient | Typical value ≤ ±5% (Output 0-50%-100%,recovery time≤20ms) |
| - Frequency | 50Hz/60Hz |
| - Frequency Stability | ±0.1%Batteries Mode |
| - Front Panel Display: | 4 Digital Display & Control Panel with Phase Selector (L-N voltage & L-L voltage metering switch) and On / Off Push Buttons |
| - Wave Form | Pure Sine Wave |
| - THD | Harmonic Distortion:≤2% for Linear Loads |
| - Overload Competence | 125% 10minutes; 150% 1 minute |
| - Overall Efficiency | 90% - 93% |
| - Front Panel Display | LCD: 4 Digital Display & Control Panel, Input & Output Voltage. Frequency,Battery Voltage,Power meter. |
| - Indicators | Mains electricity, Inverter, Bypass, Battery,Falut,Overload etc. |
| - Interface | RS232/RS485, CAN, SNMP... |
| -Bypass | Static Switch; Microprocessor Control, Synchronous mode - switching uninterrupted |
| - Battery Type | Sealed lead-acid batteries, DC Voltage: 192VDC,240VDC,384VDC,480VDC... DC voltage value choosen as per Back-up time |
| - Physical | IP20 / NEMA 1 (Tailor-made for individual request); Cables Input & Output with bottom cable entry |
| - Dimension & Weight | Dependent on model rating and back-up time |
| - Working Temp | minus 10% to +45℃ |
| - Warranty | 1 Years / 12 Months from date of supply |
Working Principle Block Diagram
- Normal working mode (From Mains Electricity): Mains electricity → Rectifier → Inverter → Load.
- Battery working mode (Abnormal – Power Outage): Battery → Inverter → Load.
- Bypass working mode (UPS internal fault or overload): Mains electricity → Static bypass switch → Load.



