Applications Features
CNC Machine Tools Digital Signal Processor
Injection Molding Machines LCD Display for Parameters
Printing Machines Overload Protection
Medical Equipment 1:10 ratio crest factor
Food Processing Machines Natural Air Cooled
Textile Machines- Spinning, Weaving, Knitting, Embroidery, Garments Manufacturing Etc. High Efficiency
  Auto Bypass
Model DHS1003A DHS1253A DHS1503A DHS2003A DHS2503A DHS3003A
Topology DSP Controlled IGBT Based Static Volatage Stabilizer
Phase Sequence Three Phase to Three Phase
Capacity 100KVA 125KVA 150KVA 200KVA 250KVA 300KVA
Input
Nominal voltage 340-460/ 320-480/ 300-500 VAC
Maximum Rated Input Current @ Nominal input Voltage 340V 170 212 255 340 425 509
Maximum Rated Input Current @ Nominal input Voltage 320V 180 226 271 361 451 541
Maximum Rated Input Current @ Nominal input Voltage 300V 192 241 289 385 481 577
Nominal frequency 47 - 53 Hz
Input Circuit Breaker Rating 200A 3P 250A 3P 400A 3P 400A 3P 630A 3P 630A 3P
Input Circuit Breaker Rating 200A 3P 250A 3P 315A 3P 400A 3P 630A 3P 630A 3P
Input Circuit Breaker Rating 200A 3P 250A 3P 315A 3P 400A 3P 630A 3P 630A 3P
Ac connection Terminal block (L1in,L2in,L3in Neutral and Ground wires) provided
Output
Nominal voltage 400/415/420 VAC, Settable
Power efficiency Typically over 98 % (with 20 - 100% load conditions)
Voltage regulation +/- 1%
Maximum rated output current 144 180 217 289 361 433
Ac connection Terminal block (L1in,L2in,L3in Neutral and Ground wires) provided
Environmental
Ambient temperature 0°C to + 45°C, 10 to 90% RH non-condensing
Cooling method Forced Air Cooled
Display
LCD Display 4 Line LCD Display, showing I/P, O/P Voltage , load Percentage, Fault Annunciation, Event log(optional)
Protections
Standards & Safety Designed to meet UL 60950-1 standards. Protection class IP 20.
OV/UV cut off with SPP Electronic cut off circuit with graded time delay for High/Low/Missing Voltage
Overload & Short Circuit Protection CT based electronic Cutoff circuit with graded time delay set @110%of rated full load current
Soft Switch-On This feature ensure that output voltage is never higher than
input voltage upon switch-on, before it commences full stabilization.
Automatic bypass Automatic bypass will be activated when there is a fault condition(Optional)
Surge Test Conditions Per Class 2 Surge (combination wave)
Surge let-through voltages 8 X 20 µs upto 40 kA waveform. L-N < 460V
Resetting Mode Manual and Automatic Option Provided
Physical
Dimensions (L X W X H in mm) 425 X 250 X 460 450 X 250 X 520 600 X 450 X 700
Weight (approx. in Kgs) 184 250 335 365 365 420
Mounting Wheel Mounted with Breaks
WARRANTY Two year limited warranty, covering repair/replacement of defective parts