On-line UPS
Online UPS generally adopts a double conversion toplogy. The so-called dual conversion refers to the process in which the electrical energy of a UPS undergoes two transformations, AC/DC and DC/AC, before being supplied to the load during normal operation. The UPS keeps its inverter in working condition, first converting external AC power into DC power through the circuit, and then converting the DC power into high-quality sine wave AC power through a high-quality inverter to output to the load. The online UPS under working conditions could output a stabilized voltage and manage batteries charging; During a power outage, the backup DC power source (battery packs) to supply power to the inverter. Due to the continuous opera tion of the inverter, there is no switching time issue, making it suitable for situations with strict requirements for the power supply. We offer two kinds of UPS, one Low-frequency UPS and another High-frequency 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.
