Rating 

63 kVA to 5 MVA  

Voltage Class 

Up to 33kVA 

Frequency  

50/60 Hz  

No. of Phase  

Single & Three Phase 

Cooling 

AN, AN/AF   

Vector Group

As per customer requirement

Winding Material 

Cu/Al

Tapping 

OCTC, OLTC, OCTL 

Insulation Class

F & H

Applicable Standards  

IS 2026 – 11 (Part 11) / IEC 60076 -11

IP protection IP 23, IP 33, IP44; smaller ratings up to IP54 

Default accessories: surge arresters, space heaters, temperature sensors / Indicator,

anti-vibration pads, etc. 

Winding casting carried out in automated Casting Plant. It ensures lowest PD levels and best finishing