CVT Manufacturer, CVT Exporter, CVT Supplier,
Constant Voltage Transformer, Ferro Resonant Transformer

Purevolt, a leading CVT manufacturer, is a trusted supplier of Constant Voltage Transformers, which are widely preferred over conventional voltage stabilizers. Unlike traditional stabilizers that use electromagnetic relays, CVTs do not cause momentary interruptions in output voltage during switching. In relay-based stabilizers, such interruptions and switching delays can damage sensitive electrical equipment such as computers and electronic systems.
A Constant Voltage Transformer ensures continuous voltage regulation, complete protection against spikes, and delivers a stable and controlled output voltage.

Purevolt is a renowned exporter and manufacturer of CVTs based on ferroresonant technology, where the primary and secondary windings are physically separated to provide superior isolation. Our highly skilled team of technicians ensures that every transformer is manufactured in compliance with industry standards and customized according to specific customer requirements.
These transformers are widely used in biomedical equipment, fax machines, telecommunication systems, color photography laboratories, highly sensitive machinery, and many other industrial applications.

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TECHNICAL HIGHLIGHTS OF
CONSTANT VOLTAGE TRANSFORMER – CVT

Purevolt’s Constant Voltage Transformer (CVT) is designed to provide complete protection against power-related problems. It effectively regulates voltage variations, suppresses transients through isolation, and bridges short power interruptions or voltage dips. Purevolt also exports these Constant Voltage Transformers to various countries worldwide.

Input Voltage Specifications

The standard input voltage range is 180 V to 260 V at rated load. At lower load conditions, the low-voltage operating limit increases automatically. Short-term high input voltages do not affect the connected load.

Purevolt CVTs can safely withstand input voltages of up to 300 V for up to 10 minutes while still delivering the rated output voltage. An MCB or fuse is provided on the input side of the CVT to protect it against persistent high current conditions, which are typically caused by high voltage due to a weak neutral.

The Constant Voltage Transformer ensures that even if the input voltage exceeds specified limits, the connected equipment is never exposed to damaging high voltage.

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Output Voltage

220 V to 230 V from no load to full load, even with a line voltage variation from 180 V to 260 V.

Line Frequency

50 Hz ± 1%. All specifications are based on a 50 Hz supply. For every 1% change in line frequency, the output voltage changes by approximately 1.6%.

A special feature of the Purevolt CVT is its wide tolerance for load power factor variations, provided the line frequency remains within the specified limits.

Output Waveform

The output waveform of the Purevolt CVT is sinusoidal, with total harmonic distortion limited to 5% at full load under typical input conditions.

Voltage Correction Speed

Supply voltage variations are normally corrected within half a cycle, i.e., within 10 ms.

Output Step Load Response

2 cycles (30–40 ms).

Isolation

Since the input and output voltages are separated not only electrically but also physically by a magnetic shunt, Purevolt’s Constant Voltage Transformer (CVT) provides a much stronger isolation effect than a conventional transformer.

This isolation effectively eliminates high-frequency components of normal-mode noise, while neutral-to-ground bonding creates a short-circuit path for common-mode noise, ensuring superior power conditioning and protection for sensitive equipment.

If you are looking for a servo voltage stabilizer, Purevolt is a highly reputed manufacturer and exporter of servo voltage stabilizers, known for quality, reliability, and consistent performance in both domestic and international markets.

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