GTS has complete facility to manufacture power transformers up to 63 MVA and the maximum voltage class is 132KV. The oil filled Power Transformers will be provided with externally mounted detachable type radiators for cooling. Transformers with other IEC specified cooling systems like cooling by fans ( ONAF) and cooling by forced oil ( ONOF) are also designed and manufactured by GTS. The Power transformers are generally provided with On load type of tap changers. These OLTC’s will be either on tank 31.5 MVA POWER TRANSFORMER type or in tank type based on customer requirement. GTS has also the design capability to design large 33 KV class trailer mounted portable transformer substations complete with primary and secondary side protection and switching devices.