Servo Controlled Voltage Stabilizers - 3 Phase Oil Cooled

Servo Controlled Voltage Stabilizers – 3 Phase Oil Cooled

Provides perfectly stable output even under severe conditions of unbalanced voltage conditions. Ideal to protect the electrical and electronic equipments from high and low voltage.

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

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 Control Timings

  • Over load Cutoff Time
  • Auto Restart Time
  • On & Off Delay Time

Programmable Controls

  • Display Scrolling – Auto / Manual
  • Start / Stop Buttons
  • 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

Technical Specifications

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 25 15V per Sec-3 Phase
Waveform Distortion nil
Output Waveform/td> true
Reproduction of Input Insulation Class B
Short Circuit period & Percentage 300% for 250 Milli Sec. 0 0
Normal Operation Temperature 0 C to 45 C 0
Climate Conditions 90% Rh Max
Non Condensing at 35 C Type of Cooling Natural Oil cooled up to 5000 KVA
Mode of system Fully Automatic System
Construction As per IS – 9815 1994

Salient Feature

  • Quick response time 10milli 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