Profile: Fairdeal Electricals & Engineering Pvt. Ltd. offers power and distribution transformers. Auto transformers are used where the difference between input and output voltage is less than 30%, and isolation is not a criteria. Transformers can be supplied air cooled or oil cooled. Hermitically sealed transformers can be either provided with welded cover or bolted cover. These transformers are maintenance free as no breathing takes place. These transformers are ideally suited for places where the conditions are excessive moisture, dusty atmosphere or heavy pollution.