Constant Voltage Transformers

Constant Voltage Transformers


Elent Electronics are involved in manufacturing and supplying an exclusive array of Constant Voltage Transformer. This transformers is available in a wide range from 50 VA to 10,000 VA with load test conducted at unity power factor for all ratings. The AC main of this transformer powers the input winding, which is widely separated physically from the isolated output winding. The input winding normally runs at very moderate Flux linkage levels. The output winding exhibits an intrinsic energy characteristic and this energy storage operates in conjunction with mains capacitor to produce self-generated AC flux field which is indirectly excited from the input winding. The result is instantaneous voltage regulation, No transient and spikes and Sine-wave output. This is manufactured using high grade raw material and advanced technology in accordance with international standards.

  • Computers
  • Data Processing equipment
  • Color Photography Labs.
  • Bio-medical equipment
  • PA equipment
  • Telecommunication
  • TV
  • VCD/DVD recorders & players
  • Teleprinters
  • Fax machines

  • Input Voltage: 180V-260V (other choices on request)
  • Line Frequency: 50Hz
  • OutputVoltage: 220/230± 1%
  • Output Stepload response: 2 cycles (30 to 40 milliseconds)
  • Efficiency: 90% (approx) under full load conditions
  • Output Waveform: Sinusoidal
  • Waveform Distortion: 5% (approx) under full load conditions
  • Load Power Factor: 0.75% lag to 0.9% lead
  • Ambient Temperature: -5°C to 50°C
  • Transformer Type: Ferro-Resonant
  • Effect of Frequency: 1.6% (approx) change in output voltage for every 1% change in line frequency

  • No semiconductors or moving parts used, hence very high reliability
  • No feedback control used
  • Intrinsic current limiting and short circuit protection
  • Output voltage correction within ½ Cycle ( 10 ms) from no load to full load for specified load and line variation
  • Short term over load capability
  • Energy storage for line loss up to 3 ms at typical loads
  • Higher input voltage control range, for loads less than rated load
  • Very high line transient/spike rejection capability and excellent input to output isolation characteristics
  • Output floating (optional)

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