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Constant Voltage Transformer (CVT)
Constant Voltage Transformer (CVT)
In the constant voltage transformer (CVT) or ferro-resonant stabiliser, the AC mains 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 storage characteristic and this energy storage operates in conjunction with the mains capacitor to produce self generated AC flux field which is indirectly excited from the input windings. Highlights include: instantaneous voltage regulation; no transient and spikes; and sine wave output ? a perfect answer and remedy for every electronic equipments voltage problems.
- Input Voltage (1 phase) ? 180 V-260 V (other choices on request)
- Line Frequency ? 50 Hz
- Output Voltage ? 220/230, ?1%
- Efficiency ? 90% (approx) under full load conditions
- Output wave form ? sinusoidal
- Wave form distortion ? 5% (approx) under full load conditions
- Load power factor ? 0.75% lag to 0.9% lead
- Ambient temperature ? -5?C to 50?C; and
- 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 1/2 cycle (10 milliseconds) from no load to full load for specified load and line variation
- Short term over load capacity
- Energy storage for line loss up to 3 milliseconds at typical load
- Higher input voltage control range, for loads less than rated load
- Very high line transient/spike rejection capability and excellent isolation characteristic, and
- Output floating (optional)
Constant Voltage Transformer CVT
CVT
Constant Voltage Transformer
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Constant Voltage
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