Constant Voltage Transformer (CVT)
Purevolt India manufactures Constant Voltage Transformers designed to deliver stable, conditioned, and electrically isolated power to sensitive electronic equipment. Also known as a ferroresonant transformer, a CVT protects connected loads from voltage fluctuations, electrical noise, spikes, and brief voltage disturbances โ without moving parts or semiconductor-based feedback circuits. Made in India since 1995.
Need Help Selecting a CVT?
Share your load rating, input voltage and application with Purevolt India for a suitable technical recommendation and quotation.
What Is a Constant Voltage Transformer?
A constant voltage transformer, commonly called a CVT, is a ferroresonant transformer that maintains a nearly constant AC output voltage even when the incoming supply voltage varies.
Unlike an ordinary transformer, which primarily changes or isolates voltage, a CVT combines transformer windings, a magnetic core, and a resonant capacitor circuit. This arrangement provides voltage regulation, electrical isolation, and power conditioning within a single unit.
The primary and secondary windings are physically and electrically separated. This galvanic isolation helps prevent high-frequency interference, spikes, and disturbances present on the incoming mains supply from reaching the connected equipment. It can also prevent electrical noise generated by the load from travelling back into the supply network.
Constant Voltage Transformer โ Type & Rating
| Parameter | Specification |
|---|---|
| Transformer Type | Ferro resonant type Constant Voltage Transformer (CVT) |
| Phase | 1 Phase |
| Rating Available | 150 VA to 10 KVA |
| Application | Sophisticated machinery requiring constant, isolated output |
Why Sensitive Equipment Needs a CVT
Modern electronic systems often use microprocessors, control boards, communication modules, sensors, and data storage components. Such equipment may malfunction even if an operator does not notice a voltage disturbance because it is too brief. Unstable power can lead to:
Unexpected Shutdowns or Restarts
Sudden voltage disturbances can trip or restart sensitive electronic equipment without warning.
Incorrect Readings & Data Loss
Testing and diagnostic instruments can give faulty readings, and stored data may be lost or corrupted.
Component & Communication Failures
Premature failure of electronic components and communication errors in telecom and networking systems.
Lower Reliability & Delays
Reduced reliability of laboratory and biomedical equipment, and production delays in electronically controlled machinery.
An industrial CVT provides a controlled supply at the point of use. It is particularly suitable when the equipment requires voltage regulation as well as isolation from noise, transients, and short-duration disturbances.
Constant Voltage Transformer Manufacturer in India
As an experienced constant voltage transformer manufacturer, Purevolt India supplies industrial CVTs for hospitals, laboratories, telecom systems, IT facilities, electronic equipment manufacturers, and other applications where even a momentary power disturbance can affect accuracy, data, or equipment reliability.
Where CVTs Are Used
Constant Voltage Transformers are widely used wherever sensitive electronic equipment cannot tolerate voltage fluctuations, electrical noise, or brief power disturbances.
Why Choose Purevolt India?
Purevolt India has manufactured power-conditioning equipment since 1995 and offers servo voltage stabilizers, isolation transformers, automatic voltage regulators, online UPS systems, variable auto transformers, rectifiers, and CVTs under one product portfolio.
Customers choose Purevolt India as their CVT transformer manufacturer in India for:
- In-house understanding of transformers and voltage-control systems
- Application-based product selection assistance
- Standard and customised manufacturing options
- Support for industrial buyers, OEMs and distributors
- Made-in-India production
- Pre-dispatch load testing for standard CVT ratings
- Export-oriented packaging and order coordination
- Access to related power-conditioning products from one manufacturer
Purevolt’s team can evaluate your equipment load, voltage conditions, and operating environment before recommending a suitable CVT configuration.
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Get the Right Constant Voltage Transformer
Looking for a reliable CVT for voltage regulation, isolation, and power conditioning in a hospital, laboratory, telecom, or IT application? Share your load rating, input voltage, and application details with Purevolt India for a suitable technical recommendation.