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Hitachi

Hitachi Hi-Rel Power Electronics Pvt. Ltd.

Diesel Rotary UPS (DRUPS)

The "Hitec" make Diesel Rotary UPS (DRUPS) Power Module comes with skid-mount single shaft assembly of rotating machines - basically comprising Diesel Engine, Free-Wheel Clutch, Induction Coupling and Generator.

Under normal operating conditions the mains power feeds the DRUPS System and customer's Critical Load via specially designed choke by Hitec. The DRUPS system stabilises the mains voltage within the acceptable tolerances and improves the power factor of the system. The DRUPS System runs continuously synchronised with the mains.

When the mains power supply to the DRUPS System fails or goes out of tolerances, the DRUPS System continues to supply full output load without interruption. Simultaneously the incoming mains get disconnected from the system. The rotary energy storage device (induction coupling) ensures continuity of power during the diesel engine start-up period. After reaching full speed, the diesel engine engages to the induction coupling and generator via free wheel clutch and works as normal standby diesel generating set. The load never knows the power transfer from mains to DG set.

Benefits

  • No Battery Maintenance
  • High Reliability - Higher MTBF
  • High Operating Efficiency
  • High Fault Current Feeding
  • No Air-Conditioning required
  • Smaller Equipment Size - Space Saving
  • Integral Power Conditioning
  • Integral Power Factor Compensation
  • Increased Flexibility - MV or LV, Dual Output, Easy to Parallel
  • Single Module: 500 kVA to 2000 kVA
  • Parallel System: up to 12 Modules of 2 MVA each

Industries Served

Data Centre, Aviation, Textile Semiconductor, Process industry, Telecom, Healthcare, Government, Finance, Pharmaceutical, Defence, etc.