Servo Stabilizers - Three Phase Oil Cooled (Below 1000 KVA)

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Salient Features

  • High efficiency & Fast response.
  • Wide input voltage range & Audiable alarm for trip conditions.
  • 99.99% failure proof control circuit.
  • No over under, shoots and hunting.
  • Built in bypass switch upto 100 Kva.
  • Less active component avoids failure ratings.
  • Special electronic circuit to operate on gensets.
  • No effect of power factor and frequency variations.
  • Single PCB for three phase sensing and correction.
  • Voltage at speed related to rate of fluctuations and avoids oscillations & hunting In dc motor drive.
  • Variable speed high torque dc servo motor proportionally controls corrections.
  • Rugged and smooth ac motor drive control through optoisolator circuit which is Highly reliable.
  • Separate isolated PCB for triac switching for motor.

High Reliability

  • High reliability due to digital monitoring and controlling using micro controller.
  • All components sourced from reputed manufacturers, confirm to IS/BS/VDU standards.
  • All raw material inspection as per internal components manual.
  • Individual assemblies and sub assemblies tested separately.
  • All electronic assemblies tested on full load at 55 deg c in oven for 48 hours to Minimize failure.
  • Final equipment tested for accelerated life test to identify and replace any weak links.

Protections

  • Input and Output Low Voltage protections.
  • Input and Output High Voltage protections.
  • Phase rotation/single phasing preventer.
  • Input protection using HRC fuse.
  • Control circuit protection using fast blow fuse.
  • Electronic overload protection.

LCD - Specification

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    • 16*4 lcd display is used for easy reading of parameters.
    • True rms sensing and reading of voltage and current.
    • 100 event error log facilities for easy diagnosation of fault level.
    • Internal variable timer is adopted for on time delay and overload trip of scvs.
    • Selectable phase reverse function.
    • Selectable auto on function.
    • Less analog circuit and hence failure rate is reduced.
    • Built in digital meter for monitoring the voltage / current & frequency.
    • Separate isolated PCB for triac switching for motor.

Product Specification

  • PARAMETERS SPECIFICATION
    Single phase capacity 1 to 25 kva
    Three phase (air cooled) 3 to 150 kva
    Three Phase (oil cooled) 3 to 2000 kva
    Input voltage range 170-270 Single phase 295-465 volts three phase
    195-270 Single phase 340-465 volts three phase
    205-270 single phase 360-465 volts three phase
    Special range As per customer requirements
    Output voltage 220/230/240 V AC in single phase
    380/400/415 V AC in three phase
    System Unbalanced/balanced type
    Connection Star/Delta or Star/Star
    Output Voltage regulation (+/-) 1% from no load to full load
    Servo motor drive model -A AC Servo Synchronous Motor - Small
    Correction speed 35 V/sec-1 ph, 60 V/sec-3 ph
    Response time Above 60 milli. sec.
    Servo motor model-B DC servo motor
    Correction speed Upto 105 V/sec.
    Response time 10 milli.sec.
    Operating frequency 47 to 53 HZ
    Output waveform True reproduction of input
    Insulation Class "B"
    Short circuit percentage and period 300 % for 250 milli sec.
    Overload capacity 120 % for 1 minute
    Effect of load P.F on OP Volts Nil
    Waveform distortion Nil
    Duty Cycle 100 % continuous
    Ambient Upto 45c max above ambient Relative humidity upto 90%
    System construction As per IS:9815
    Enclosure Powder coated
    Efficiency Better than 98% (electrical consumption saved)
    Environment Designed for indoor / outdoor tropical use
    Mounting On wheels
    Earthing Earthing terminals provided

Dimension

  • OIL CAPACITY L (mm) W (mm) H (mm) WEIGHT KGS
             
    40 LTS DL 1000 400 600 100
    60 LTS 970 400 650 150
    100 LTS 1250 450 750 200
    160 LTS 1450 750 850 450
    225 LTS 1650 900 950 650
    400/500 LTS ECO 1900 900 1100 850
    500 LTS 1400 1200 1500 1000
    700 LTS 2250 1100 1300 1200
    800 LTS 2350 1100 1300 1300
    900 LTS 2500 1500 1500 1500
    1500 LTS 2500 2000 2000 2000
    1800 LTS 2500 2000 2000 2000
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ISO 9001:2008 CERTIFIED
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