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Servo Controlled Voltage Stabilizer 3 Phase Oil Cooled

Input Voltage Range : 300 – 460V / 340 – 480V / 360 – 460V
AC 3 Ph
Output Voltage (3 Ph) 415V AC
System Unbalanced 4 wire: R Y B N
Connections Star
Operating Frequency 47 to 53 Hz
Output Voltage Adjustable 380 to 415V AC in 3 Ph
Output Voltage Regulation + 1% (No Load)
Output Voltage Regulation + 1% (Full Load)
Overload Capacity 120%
Correction Rate 60 / 30 / 25V per Sec-3 Phase
Waveform Distortion Nil
Output Waveform True Reproduction of Input
Insulation Class B
Short Circuit period & Percentage 300% for 250 Milli Sec.
Normal Operation Temperature 0° C to 45° C
Climate Conditions 90% Rh Max. Non Condensing at 350C
Type of Cooling Natural air cooled up to 600 KVA
Mode of system Fully Automatic
System Construction As per IS : 9815 – 1994
  • Quick response time 10 milli sec (half a cycle)
  • Very high efficiency above 98%
  • Excellent regulation as high as +/- 0.5%
  • “Micro controller” controlled system
  • Wide input range of operations & high speed of correction

Protections
• Single Phasing Prevention
• Output Electronic Over Load Protection
• Phase Reversal Protection
• Input Short Circuit Protection with MCB
• Input Over Load Protection with MCB
• Output Low Voltage Protection
• Output High Voltage Protection
• Audio Alarm for Protections

Indications
• Mains Input on 3 LED Indications,
• 3ph output on indication
• Phase Reversal indication
• over Load indication

Indications in LCD Display
• Input High and Input low
• Output on indication
• Output high Cutoff and Output Low Cutoff

Metering On LCD Display
• 3ph Input voltage ph to ph and ph to Neutral
• 3ph Output voltage ph to ph and ph to Neutral
• System Frequency
• Output Current on each ph

Programmable Parameters
• Output voltage set ( 210-245V)
• Output Low Voltage Cutoff
• Output High Voltage Cutoff
• Input Low on LCD Display
• Input High on LCD Display
• Sensitivity / Regulation
• Over Load Cutoff
• CT full scale

Programmable Controls
• Display Scrolling – Auto / Manual
• Start / Stop Buttons Optional Out Door Available
Menu / Start / Stop / Reset / Log Button
Data Log: Last 100 fault events log with Date & Time stamp and works on FIFO basis.
Very Important For CSD Analysis Problems

Programmable Control Timings
• Over load Cutoff Time
• Auto Restart Time
• On & Off Delay Time

Capacities Avaliable Upto 3150 KVA

Servo Controlled Voltage Stabilizers 3Phase Oil Cooled
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