We manufacture Constant Voltage Regulators which use a tank circuit composed of a high-voltage resonant winding and a capacitor to produce a nearly constant average output with a varying input. The constant voltage regulator approach is attractive due to its lack of active components, relying on the square loop saturation characteristics of the tank circuit to absorb variations in average input voltage.
Electronics instruments, Machines, Computers and other microprocessor based equipment are designed to operate on steady stream sine wave of 220/230 V RMS. The nature of utility power is such that very frequently the equipment encounter electrical disturbances and voltages which are beyond the range of those equipment. The quality of power has deteriorated so much during the past several years that today it is impossible to work without encountering disturbances. Equipment using microprocessors are especially vulnerable due to the degradation of the utility power.
The equipment when plugged into the wall socket outlet are normally located a good distance from the building service center ie. The place where the power meters are located.
Thus in order to reach the equipment potentially damaging impulses generated outside your location travel through the impedances of lot of copper wire. Although this barrier serves to dampen out many of these disturbances the real problem occurs along the electrical path from the point the power enters your premises to your equipment. Between these points are all kinds of devices such as lifts, air conditioners, Fluorescent tube chokes, Photo copiers and in case of factories the machines. Any equipment that arcs, cycle on off, or draws excessive bursts of current becomes the cause of potential hazard to your micro processor based equipment.
The utility power has also been so much overloaded that the demand far exceeds the supply. Coupled with that is the fact that although the wiring in your area 1 building/location was initially designed to handle lets say "x" amount of power the actual power being handled by these wires could be as much as "3x" on the top of this is the poor / negligible / nil maintenance of the junction boxes located near your premises. All this results in either very low voltages during peak load hours and very high voltages during off load hours. Microprocessor based equipment are normally designed to operate on very narrow voltage bands and when they are subject to large variation in voltages they get damaged.
Purevolt's Constant Voltage Transformer has been designed to give you total protection against power related problems. Constant Voltage Transformer effectively regulates voltage variation, suppresses transients (ISOLATION) and bridges the short interruptions/dips. We also export these Constant Voltage Transformers to Various countries.
Input voltage :
180 V - 260 V at the rated power. At lesser loads, the "Low Voltage" limit is increased automatically. Short term high Input Voltages shall not affect the load side. Purevolt CVT can handle upto 300 volts for 10 min. and shall deliver the rated output voltage during this period. A MCB/FUSE has been incorporated on the input side or the CVT so that in case of persistent high current (normally caused because of high voltages occurring on account of a weak neutral) the same shall protect the CVT. The Constant Voltage Transformer ensures that even if more than the specified input voltage is applied the equipment does not ever see damaging high voltage.
Output Voltage :
220 V to 230 V from no load to full load or a line voltage swing from 180V to 260 V.
Line Frequency :
50 Hz +- 1%. All specifications relate to 50 HZ. For every 1% change in the line frequency, the output voltage changes by 1.6 %. The special feature incorporated in the PUREVOLT CVT is that it has a very wide tolerance of the load power factor within the specified line frequency limits.
Output Waveform :
the output waveform of Purevolt CVT is sinosidal and the waveform distortion is limited to 5% under full load conditions at typical input.
Voltage Correction Speed :
Changes in supply voltage are normally corrected within half cycle i.e within 10 ms.
Output Step Load Response :
2 cycles (30 to 40 ms)
Isolation:-
Since the input and output voltages are separated not only electrically, but physically also, by magnetic shunt, Purevolt's Constant Voltage Transformer has stronger isolation effect then a normal transformer. The isolation effectively strips away the high frequency components of the normal mode noise and the neutral to ground bonding creates a short circuit path for the common mode noise.
AEI's Constant Voltage Regulators has been designed to give you total protection against power related problems and to condition the power to suit the needs of your microprocessor based equipment. Constant Voltage Regulators effectively regulates voltage variation, suppresses transients (ISOLATION) and bridges the short interruptions/dips.
Computers, Data Processing equipment, Colour Photography Labs., Bio-medical equipment, PA equipment, Telecommunication, TV, VCD/DVD recorders & players, Teleprinters, Fax machines and all other sensitive electronic devices.
-No Semiconductor or moving part used, hence very high reliability.
-No feed back control used.
-Intrinsic current limiting and short circuit protection.
-Energy storage for line loss up to main 3ms at typical load.
-Short term over load capacity.
-Higher input voltage control range for load less than rated low.