FURNACE TRANSFORMERS

Conforming to I.S. 2026 and I.S. 4540 - Specifications for Power Transformers and Specification tor Rectifiers.

Designed to suit 6 Pulse /12 Pulse or other rectifier circuits as required by Furnace Manufactured Two active parts In one tank can also be provided.

Use reduced flux density to limit core losses due to harmonic flux.

Use reduced current densities to limit losses due to harmonic currents.

Electrostatic Earth Shield provided between Primary and Secondary side windings for prow protection of rectifier elements against voltage surges in Primary side windings.

Special Feature of Induction Furnace Transformers,

Physical proximity between Primary and Secondary side windings give rise to a Capacitive coupling between them. Any Surges on the Primary side winding due to switching get transferred to the Secondary side winding. Rectifier elements of the equipment are sensitive to over voltages and are likely to fall due to them. Hence It Is necessary to prevent transfer of voyage from Primary side to Secondary side due to nils capacitive coupling. This Is done by providing an earthed electrostatic shield between Primary and Secondary side windings.


 

Commonly used Rectifier Circuits for induction Furnace applications are :