Why conservator tank is used in power transfromer? Warning: Trying to access array offset on false in /home3/indiakep/public_html/wp-content/plugins/dw-question-answer/inc/Template.php on line 8 All Questions › Category: Switchgear And Protection › Why conservator tank is used in power transfromer? 0 Vote Up Vote Down Chetan Shidling Staff asked 6 years ago I need short information. 1 Answers 0 Vote Up Vote Down Ashok answered 6 years ago To maintain the level of oil in the transformer.