Transformer Based UPS
Shengweiups’s transformer based UPS delivers the highest level of power protection through a robust, industrial-grade architecture. It uses an SCR-driven rectifier for stable and efficient power conversion, an IGBT-based inverter for fast switching and clean output, and an isolation transformer at the output stage to provide complete electrical separation between the utility source and the load.
This design not only enhances reliability and fault tolerance but also offers superior protection against surges, noise, harmonics, and short-circuit conditions. With its strong overload capability and excellent immunity to harsh electrical environments, a transformer-based UPS ensures that critical loads receive clean, stable, and fully isolated power at all times.

Table of Contents
3:3 Phase Series

SWD33-10KVA
Input Phase : 3L+N+G
Input Voltage : 380/400/415VAC or Customized
Input Frequency Range : 50/60Hz±5Hz Automatic Discrimination
Output Phase : 3 L+N+G
Output Voltage : 380/400/415VAC or Customized
Power Factor : 0.8/0.9
Conversion time : 0 ms
Battery Voltage : 384VDC

SWD33-15KVA
Input Phase : 3L+N+G
Input Voltage : 380/400/415VAC or Customized
Input Frequency Range : 50/60Hz±5Hz Automatic Discrimination
Output Phase : 3 L+N+G
Output Voltage : 380/400/415VAC or Customized
Power Factor : 0.8/0.9
Conversion time : 0 ms
Battery Voltage : 384VDC

SWD33-20KVA
Input Phase : 3L+N+G
Input Voltage : 380/400/415VAC or Customized
Input Frequency Range : 50/60Hz±5Hz Automatic Discrimination
Output Phase : 3 L+N+G
Output Voltage : 380/400/415VAC or Customized
Power Factor : 0.8/0.9
Conversion time : 0 ms
Battery Voltage : 384VDC

SWD33-30KVA
Input Phase : 3L+N+G
Input Voltage : 380/400/415VAC or Customized
Input Frequency Range : 50/60Hz±5Hz Automatic Discrimination
Output Phase : 3 L+N+G
Output Voltage : 380/400/415VAC or Customized
Power Factor : 0.8/0.9
Conversion time : 0 ms
Battery Voltage : 384VDC

SWD33-40KVA
Input Phase : 3L+N+G
Input Voltage : 380/400/415VAC or Customized
Input Frequency Range : 50/60Hz±5Hz Automatic Discrimination
Output Phase : 3 L+N+G
Output Voltage : 380/400/415VAC or Customized
Power Factor : 0.8/0.9
Conversion time : 0 ms
Battery Voltage : 384VDC

SWD33-60KVA
Input Phase : 3L+N+G
Input Voltage : 380/400/415VAC or Customized
Input Frequency Range : 50/60Hz±5Hz Automatic Discrimination
Output Phase : 3 L+N+G
Output Voltage : 380/400/415VAC or Customized
Power Factor : 0.8/0.9
Conversion time : 0 ms
Battery Voltage : 384VDC

SWD33-80KVA
Input Phase : 3L+N+G
Input Voltage : 380/400/415VAC or Customized
Input Frequency Range : 50/60Hz±5Hz Automatic Discrimination
Output Phase : 3 L+N+G
Output Voltage : 380/400/415VAC or Customized
Power Factor : 0.8/0.9
Conversion time : 0 ms
Battery Voltage : 384VDC

SWD33-100KVA
Input Phase : 3L+N+G
Input Voltage : 380/400/415VAC or Customized
Input Frequency Range : 50/60Hz±5Hz Automatic Discrimination
Output Phase : 3 L+N+G
Output Voltage : 380/400/415VAC or Customized
Power Factor : 0.8/0.9
Conversion time : 0 ms
Battery Voltage : 384VDC

SWD33-120KVA
Input Phase : 3L+N+G
Input Voltage : 380/400/415VAC or Customized
Input Frequency Range : 50/60Hz±5Hz Automatic Discrimination
Output Phase : 3 L+N+G
Output Voltage : 380/400/415VAC or Customized
Power Factor : 0.8/0.9
Conversion time : 0 ms
Battery Voltage : 384VDC

SWD33-160KVA
Input Phase : 3L+N+G
Input Voltage : 380/400/415VAC or Customized
Input Frequency Range : 50/60Hz±5Hz Automatic Discrimination
Output Phase : 3 L+N+G
Output Voltage : 380/400/415VAC or Customized
Power Factor : 0.8/0.9
Conversion time : 0 ms
Battery Voltage : 384VDC

SWD33-200KVA
Input Phase : 3L+N+G
Input Voltage : 380/400/415VAC or Customized
Input Frequency Range : 50/60Hz±5Hz Automatic Discrimination
Output Phase : 3 L+N+G
Output Voltage : 380/400/415VAC or Customized
Power Factor : 0.8/0.9
Conversion time : 0 ms
Battery Voltage : 384VDC

SWD33-250KVA
Input Phase : 3L+N+G
Input Voltage : 380/400/415VAC or Customized
Input Frequency Range : 50/60Hz±5Hz Automatic Discrimination
Output Phase : 3 L+N+G
Output Voltage : 380/400/415VAC or Customized
Power Factor : 0.8/0.9
Conversion time : 0 ms
Battery Voltage : 384VDC

SWD33-300KVA
Input Phase : 3L+N+G
Input Voltage : 380/400/415VAC or Customized
Input Frequency Range : 50/60Hz±5Hz Automatic Discrimination
Output Phase : 3 L+N+G
Output Voltage : 380/400/415VAC or Customized
Power Factor : 0.8/0.9
Conversion time : 0 ms
Battery Voltage : 384VDC

SWD33-400KVA
Input Phase : 3L+N+G
Input Voltage : 380/400/415VAC or Customized
Input Frequency Range : 50/60Hz±5Hz Automatic Discrimination
Output Phase : 3 L+N+G
Output Voltage : 380/400/415VAC or Customized
Power Factor : 0.8/0.9
Conversion time : 0 ms
Battery Voltage : 480VDC

SWD33-500KVA
Input Phase : 3L+N+G
Input Voltage : 380/400/415VAC or Customized
Input Frequency Range : 50/60Hz±5Hz Automatic Discrimination
Output Phase : 3 L+N+G
Output Voltage : 380/400/415VAC or Customized
Power Factor : 0.8/0.9
Conversion time : 0 ms
Battery Voltage : 480VDC

SWD33-600KVA
Input Phase : 3L+N+G
Input Voltage : 380/400/415VAC or Customized
Input Frequency Range : 50/60Hz±5Hz Automatic Discrimination
Output Phase : 3 L+N+G
Output Voltage : 380/400/415VAC or Customized
Power Factor : 0.8/0.9
Conversion time : 0 ms
Battery Voltage : 480VDC

SWD33-800KVA
Input Phase : 3L+N+G
Input Voltage : 380/400/415VAC or Customized
Input Frequency Range : 50/60Hz±5Hz Automatic Discrimination
Output Phase : 3 L+N+G
Output Voltage : 380/400/415VAC or Customized
Power Factor : 0.8/0.9
Conversion time : 0 ms
Battery Voltage : 768VDC
3:1 Phase Series

SWD31-10KVA
Input Phase : 3L+N+G
Input Voltage : 380/400/415VAC or Customized
Input Frequency Range : 50/60Hz±5Hz Automatic Discrimination
Output Phase : 1 L+N
Output Voltage : 220/230VAC or Customized
Power Factor : 0.8/0.9
Conversion time : 0 ms
Battery Voltage : 192VDC

SWD31-15KVA
Input Phase : 3L+N+G
Input Voltage : 380/400/415VAC or Customized
Input Frequency Range : 50/60Hz±5Hz Automatic Discrimination
Output Phase : 1 L+N
Output Voltage : 220/230VAC or Customized
Power Factor : 0.8/0.9
Conversion time : 0 ms
Battery Voltage : 192VDC

SWD31-20KVA
Input Phase : 3L+N+G
Input Voltage : 380/400/415VAC or Customized
Input Frequency Range : 50/60Hz±5Hz Automatic Discrimination
Output Phase : 1 L+N
Output Voltage : 220/230VAC or Customized
Power Factor : 0.8/0.9
Conversion time : 0 ms
Battery Voltage : 192VDC

SWD31-30KVA
Input Phase : 3L+N+G
Input Voltage : 380/400/415VAC or Customized
Input Frequency Range : 50/60Hz±5Hz Automatic Discrimination
Output Phase : 1 L+N
Output Voltage : 220/230VAC or Customized
Power Factor : 0.8/0.9
Conversion time : 0 ms
Battery Voltage : 192VDC

SWD31-40KVA
Input Phase : 3L+N+G
Input Voltage : 380/400/415VAC or Customized
Input Frequency Range : 50/60Hz±5Hz Automatic Discrimination
Output Phase : 1 L+N
Output Voltage : 220/230VAC or Customized
Power Factor : 0.8/0.9
Conversion time : 0 ms
Battery Voltage : 192VDC

SWD31-60KVA
Input Phase : 3L+N+G
Input Voltage : 380/400/415VAC or Customized
Input Frequency Range : 50/60Hz±5Hz Automatic Discrimination
Output Phase : 1 L+N
Output Voltage : 220/230VAC or Customized
Power Factor : 0.8/0.9
Conversion time : 0 ms
Battery Voltage : 192VDC
