250 kVA 3 Phase Automatic Voltage Stabilizer

250KVA 3 phase Automatic Voltage Stabilizer are available for different input voltage ranges. 

• Symmetrical: ±15%, ±20%, ±25%, ±30% (Other on request)

• Asymmetrical: +15%/-25%, +15%/-30%, +15%/-40% (Other on request)

• Output voltage accuracy: ±1% - 5% adjustable

All our three phase Automatic Voltage Stabilizers are equipped with columnar voltage regulators and roller carbon brush which enable the achievement of high ratings(up to 6000kVA) to meet the most diverse applications. 

                                                                                                 Columnar voltage regulator with roller carbon brush 

250KVA 3 phase Automatic Voltage Stabilizer Features & Benefits

• Maintenance free roll carbon brush 
• Wide input voltage range
• Unique compact dimension
• Independent phase control with three motors
• High efficiency, up to 98%(full load)
• Completed protections

Quick buying guide for Automatic Voltage Stabilizer

• Number of phases
  • Single phase load, choose single phase voltage stabilizer
  • Three phase load, choose three phase voltage stabilizer
• Rated voltage and frequency
  • Norminal voltage 380V, 400V, 415V, 440V, 480V etc.
  • Frequency 50Hz or 60Hz
  • Neutral line availability(3 phase 3 wire or 3 phase 4 wire)
• Input voltage range
  • Symmetrical: ±15%, ±20%, ±25%, ±30% (Other on request)
  • Asymmetrical: +15%/-25%, +15%/-30%, +15%/-40% (Other on request)
• Power
  • kVA(single phase) = load voltage * load current
  • kVA(three phase) = √3 * phase to phase load voltage * load current
  • Consider at least 30% extra safty margin for possible future expansions
• Installation
  • ​​​​​​​IP protection
  • Indoor or outdoor

250KVA 3 phase Automatic Voltage Stabilizer Specifications