Furnace Transformers

A Furnace Transformer is simply used to supply desired/required voltage to the furnace itself. Input voltage of transformer may vary according to type & make of furnace manufacturer.

Types
Furnace transformers are manufactured as per various types of furnaces (Blast, Cupola, Electric Arc, Induction etc.) with varied input voltages (viz. 240, 325, 460, 575, 600 etc.) & variety of working principles (6 Pulse, 12 Pulse, 18 Pulse etc.)

Our design
Our Furnace transformers are designed to work on continuous duty cycle but with a constant high loading taking care of generated current harmonics.
While designing, various influencing factors are considered such as- Thyristor or diode rectifier, input voltage its range & step voltage, no. of pulse (6, 12 18), with or without electrostatic shield.
Winding is so designed to withstand repeated high mechanical and thermal stresses and at the same time minimizing winding hotspot.
Voltage regulation is an important aspect of furnace transformer. It is achieved with the help of Off Load Tap Changer (Generally in case of Thyristor rectifier) & On Load Tap Changer (Generally in case of Diode rectifier) installed at HV winding.

Reference Standard
IS 2026: 2011is a reference standard For Oil immersed Furnace Transformers.