Bharat Heavy Electricals Ltd (BHEL) has successfully manufactured and conducted the short-circuit test of India’s highest rating auto transformer at National High Power Test Laboratory (NHPTL) in Madhya Pradesh. Short circuit test is the most stringent, special type test for power transformers which is conducted to prove the adequacy for power transformers to withstand abnormal operating conditions to ensure reliability in case of short circuit fault. The 500 MVA 400/220/33kV auto transformer has been designed and manufactured at BHEL’s Bhopal plant for UP Power Transmission Corporation Ltd. BHEL claims to be the largest local manufacturer of power transformers in the country and this is their twenty-first 400kV-class transformer, which has successfully passed the short circuit test, indicating India’s capability to indigenously develop higher rating and specialised transformers. Link to the news: http://www.bhel.com//assets/downloads/5fc0ade8c7a48BHEL_establishes_new_record_with_India%E2%80%99s_highest-rated_Auto_Transformer.pdf