Furnace Transformer is a heavy-duty electrical device specifically designed to provide high current at low voltage to industrial furnaces, such as those used in steelmaking and metal smelting. these are recognized as "severe duty" equipment because they must endure constant thermal and mechanical stress, including frequent short circuits and rapid load fluctuations that would damage a standard power transformer.
Technical Specifications
|
Feature
|
Specification
|
|
Type
|
Oil Cooled Type
|
|
Rating
|
Upto 7.5 MVA
|
|
Voltage Class
|
Upto 33kV
|
|
Voltage Ratio
|
0.400kV/0.600kV
|
|
Frequency
|
50 Hz
|
|
Phase
|
3 Phase
|
|
Cooling Type
|
ONAN/ONAF
|
|
Vector Group
|
As Required
|
|
Winding Material
|
Copper
|
|
Insulation Class
|
A
|
|
Tap Range
|
Off Circuit Or On-Load Tap Changers for HV/LV Variation As Per Customers Specification
|
|
Impedance
|
In Line With Applicable Standards/ Customers Specification
|
|
Applicable Standard
|
IS, IEC, IEEE Etc.
|
Standard Tests
- Winding Resistance Measurements
- Ratio and Polarity Measurements
- Exciting Current and No Load Losses
- Impedance and Load Losses Measurements
- AC Dielectric Test
- Induced Voltage Test
- Core Ground Test
- Oil BDV Test
- Magnetic Balance Test
- Insulation Resistance Test
- Vector Group Test
- Capacitance and Tan-Delta Test
Optional Tests
- Temperature Rise
- Sound Level
- Radio Influence Voltage
- Partial Discharges
- Basic Insulation Impulse Level
- SFRA Test
- Short circuit Test
- Knee Point Voltage of bushing CT
Brands
§ ABB | RPPL | Synergy | Rishabh | Telwne | T&R | CG Power
Common Applications
§ Rolling Mills | Steel Industries | Metal Industries