Converter Transformers

Power Range	All ratings on request
Max Voltage	Up to 52 kV
Technology	Cast Resin & Oil Immersed
Standard	IEC 60076; IEC 60146
Cooling	AN/AF (cast resin); ONAN/ONAF/OFAF (oil)
Impedance	Per project specification
BIL (Lightning)	Per insulation coordination
Temperature Rise	Per rated duty cycle
Losses	Guaranteed per specification; harmonic-load losses calculated
Short-Circuit Std.	IEC 60076-5
Conducting Material	Aluminium or Copper
HV Coil Construction	Vacuum-cast (cast resin) or precision-wound (oil); optimised for converter harmonic load
LV Coil Construction	Multiple secondary windings with controlled phase-shift angles; vacuum-cast or Prepreg
Insulation System	Epoxy resin (cast resin) or mineral/ester oil; rated for harmonic duty
Tank / Enclosure	Cast resin: open frame or enclosure; Oil: corrugated/radiator tank with full accessories
Tap Changer	NLTC standard; OLTC on request per IEC 60214
Climate Class	C5 (cast resin); per IEC 60076 (oil)
Ambient Class	E4 (cast resin); per IEC 60076 (oil)
Fire Class	F1 (cast resin); oil per IEC 60076
Certifications & Standards	IEC 60076; IEC 60146; ISO 9001:2015; GOST on request
Offshore Classification	On request
GOST Available	Yes – on request
Key Applications	Variable frequency drives (VFD); industrial motor control; frequency converters; wind/solar inverters; DC motor drives; marine propulsion
Industries Served	Industrial drives; renewable energy; steel & metals; chemical; marine propulsion; paper industry
Typical Delivery	Per project scope

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