Transformer oil purification method and system suitable for high-voltage vacuum equipment

• Main Authors: WANG YAOWEI, WANG LIUCHENG, ZHOU BAOGUI
• Format: Patent
• Language: Chinese; English
• Published: 23.06.2023
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; INDUCTANCES; MAGNETS; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES; SEPARATION; TRANSFORMERS; TRANSPORTING

The invention provides a transformer oil purification method and system suitable for high-pressure vacuum equipment. The transformer oil purification method comprises the following steps: an oil feeding step: introducing transformer oil in an oil storage tank or to-be-treated high-pressure vacuum equipment into a heating system; oil heating: heating the transformer oil to a preset temperature; a dehydration and degassing step: enabling the transformer oil to form a mist shape in a vacuum separator and then form a film shape so as to separate moisture and gas in the transformer oil from the transformer oil, then collecting moisture through a cooling condensation system, and discharging the gas; an oil filtering step: carrying out primary impurity removal and filtration on the transformer oil before the oil heating step, and carrying out secondary impurity removal and filtration and tertiary impurity removal and filtration on the transformer oil after the dehydration and degassing step; and an oil injection ste