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Bernard Bonnefond S.A.S.
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  5. VARIVOLT - Model 200 kVA to 30 MVA - ...

VARIVOLT - Model 200 kVA to 30 MVA -Variable Transformer

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VARIVOLT is a variable transformer allowing to adjust voltage on load from 200 kVA to 30 MVA.  The voltage change takes place at the transformer`s secondary (the primary is fixed). The VARIVOLT is equipped with sliders that allow you to regulate voltage continuously and linearly, It can be seen as a transformer with an infinite number of sockets. This transformer is optimised for installations requiring a variable power supply such as glass and metal furnaces and test platforms.

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Primary high and low voltage
The high and low voltage primary winding is produced in the conventional way. In addition, the primary and secondary windings are insulated, which makes it possible to have galvanic isolation.

Adapting power
Real-time adaptation of power to the load means it can ensures optimum power consumption.

No harmonics
The VARIVOLT do not generate harmonics which could disrupt the electricity network and affect your electrical equipment.

What`s more, VARIVOLT does not incorporate no DC component.

Remote control
VARIVOLTs can be controlled remotely, which makes it possible for time saving and ease of use.

Power factor
With a VARIVOLT, you benefit from a high power factor, which means you can avoids the need to install a compensation system.

Durability
A VARIVOLT has a lifespan of over 40 years and on average requires low maintenance (every 400,000 pulses or about 10 years)

High efficiency
VARIVOLTs offer efficiency higher than 98 %This maximises the energy efficiency of systems while reducing operating costs. This translates into savings on your electricity bill.

Variable secondary voltage
The secondary winding is designed using a grooved copper profile. It allows continuous evolution under load from 0 to 100%.

Here is an example of an installation. In general, an installation consists of four elements:

  • The VARIVOLT: This is the main component of the installation. It will serve aspower supply for our equipment.
  • The electric connections: the electric connections allow to make a link between the VARIVOLT, the control-command and our equipment.
  • The control-command which, as its name suggests, allows you to check the voltage reaching your equipment.
  • Then, there is our equipment which receives the power.