Furnace Transformers

We are a distinguished Furnace Transformer Manufacturer of India. We produce highly efficient furnace transformers using state-of-the-art technologies. Durability, performance and precision are some attributes which our products are famous for. These fabulous ranges of furnace transformers are able to reduce power consumption efficiently. Designed and manufactured after thorough analysis, our transformers never creates problem. We are also a number one manufacture of oil furnace transformer.

Commonly used Rectifier Circuits for induction Furnace application are :

Three Phase Bridge Circuit with single secondary [Ref. D-1, Sr. No.1]

Double Star with Inter-phase Transformer (IPT) with two star connected secondaries [Ref. D-1 Sr. No.2]

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. [Ref. D-3)

Special Feature of Induction Furnace Transformers

Electrostatic Earth Shield provided between Primary and Secondary side windings for prow protection of rectifier elements against voltage surges in Primary side windings. [Ref. D-3]

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

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

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.

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

Why weight and dimensions of Induction Furnace Transformers are higher than Conventional Transformers?

To achieve reduced current densities, more conductor cross section areas are required. Hence core weight Increases.

To achieve reduced flux density, more core cross section area is required, hence core weight increases,

In a transformer, core weight and copper weight are inter dependent. Increase in conductor cross section requires that core window area be bigger resulting in increase oi core weight also. Similarly increase in core cross section is achieved by increasing core dia. which increases mean Dias of winding and the lengths of their mean turn. This Increases corner weight also. Increase In core and copper weights increase the overall dimensions, increasing oil quantity, structural steel etc.

When an electrostatic shield Is provided between the windings, more radial gap Is required between the windings. This further Increases core weight, copper weight, oil quantity and structural steel.