Primary Voltage Ratings: 115 kV                                     Secondary Voltage Ratings: 34.5 kV
H.V. TAP RANGE: 115kV*+/- 16 x 0,625 %                       CONNECTION TYPE: YNyn0d1
Standards: IEC                                                                  Application: 115lV Substation
Power Rating: 31.5MVA/36MVA                                       Cooling Method: ONAN & ONAF

The 31.5 MVA 115/34.5 kV Transformer is an IEC-standard, mineral oil-immersed unit designed for continuous operation. It features a robust ONAN/ONAF cooling system and includes a 32-step on-load tap changer, automatic voltage regulator, and multiple safety accessories like Buchholz relays and thermal imaging. Suitable for outdoor installation, it supports a maximum primary voltage of 123 kV and secondary voltage of 36 kV. This transformer ensures reliable performance with a temperature rise of 55/65 ºC and includes comprehensive monitoring and protection features.

110 kV 115 kV power transformers according to standard
1. GB 6451 Specification and technical requirements for oil-immersed power transformers;
2. IEC 60076 Power Transformers;
3. AS NZS 60076 Power Transformers;
4.CSAC88-16 Power Transformers;
5. ANSI/IEEE C57.12.00 IEEE Standard for General Requirements for Liquid-Immersed Distribution, Power, and Regulating Transformers;
6. GOST R 52719 Power Transformers - General Specifications;
7. EN60076 Poer Transformer.