The Servo Controlled AC Voltage Stabilizer basically comprises the following:
»
Motorised Dimmerstat (continuously variable auto transformer)
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Buck - Boost Transformer
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AC Step Synchronous motor.
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Sensing and control circuits,
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Protection circuits for under / over voltage, single phasing, phase reversal and over load etc.
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Surge suppression like MOVS
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Annunciation circuits.
Aplications
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Testurising plant
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Yarn manufacturing Unit
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Embroidery Machine
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Software / IT / ITS Industries
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Corporates
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Engineering Plant
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Process Control Equipment
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CNC Machines
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Medical Equipments
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Bank and Biomedical Equipments
Features
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Unaffected by load Power Factor and supply frequency variation.
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Zero waveform distortion.
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D G set compatibility.
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Out Put RMS sensing and PI type control circuit Prevents under / over shooting or hunting
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98% efficiency achieved by optimum design and by use of hiquality CRGO laminations and copper of 99.9% Purity.
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Speed of correction up to 70 V/sec.
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Duty cycle continuos.
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Easy and simple maintenance with edge header male - female type pcb.
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LED indications for power On, out put under / over voltage.
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Operation : Auto or Manual.
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Metering : Analogue or Digital.
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Out put voltage settting : by potentiometer in auto made and by Raise / Lower switch in manual made.
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Out put under / over voltage, phase reversal, single phasing, over load and short circuit protection.
Electrical Specification
Cooling
:
Oil Natural cooled / Air Natural Cooled
Type
:
Indoor
Frequency
:
47 - 63 Hz
Input voltage
:
320 - 470 / 350 - 500 / 360 - 470 VAC 3 phase 4 wire AC or as per the requirement.
150 - 290 / 170 - 270 / 180 - 270 VAC 1 phase or as per the requirement.
Capacity
:
1 KVA to 1000 KVA in three phase
1 KVA - 300 KVA in single phase
Out put Voltage
380 / 400 / 415 V + 1%, 3 phase AC or as per the requirement
