Online UPS
Online UPS
Line Interactive UPS
Inverter
Servo Controlled Stabilizer
Servo Controlled Voltage Stabilizer
CVT
Battery
Battery
Solar Product

ST Series ONLINE UPS Systems
ST Series ONLINE UPS Systems

Salient Features

  • True On-Line Double Conversion Technology
  • Pure Sine Wave Output
  • High Frequency PWM Inverter
  • Crystal Controlled Output Frequency
  • Wide input voltage tolerance range
  • Smooth and silent operation
  • Excellent dynamic response for step load change
  • Fast automatic correction rate for line and load regulation
  • High inrush / peak current handling capacity
  • Easy to install, use and maintain
  • Inbuilt isolation

Optional Features
Static / Manual Bypass
Hot Stand By
LCD Display

Technical Specifications
Capacity 1 kVAto200kVA
Input Voltage 160-270V AC Two Wire, 330-470 V AC Four Wire
Input Frequency 47-53 Hz
Rectifier - Charger Automatic Float cum Boost Charger, Constant & Voltage Constant Current Type
Battery Input 36-360 V DC (or as per requirement)
Battery Back-up 15mins. to 8 hrs. (or as per requirement)
Output Voltage 230/415V AC (or as per requirement)
Regulation ± 1% under all Lines and Load Conditions
Output Frequency 50 Hz
Regulation ±0.05%
Inverter Efficiency Better than 90%
Waveform Pure Sine Wave (Sinusoidal)
THD < 3% at Linear Load
Transient Response ± 5% under Step Load Change
Transient Recovery within 3 Cycles
Load Power Factor 0.8 lagging
Overload Capacity 110% for l0mins./150% for l0sec
Crest Factor 3:1
Control Method Sinusoidal PWM Control
Switching Frequency above 12 kHz
Circuit Method On-Line Double Conversion, Zero Transfer Time
Ambient Temperature 0°-45°C
Relative Humidity 95% RH Max. (Non Condensing)
Audible Noise Less than 55 dB at 1.5 meters
Cooling Forced Air Type
Protections Battery Under and Over Voltage
*Specifications are subject to change without prior notice due to continuous improvement in design & technology.