PEL has a vast experience in design and manufacturing of standard and special purpose transformers. New technical designs for improved efficiency and quality against special orders of non-standard transformers are continuously being explored. Dry type transformers for Tarbela and Mangla Power Houses Auxiliary Supplies were designed by out Technical Department Special transformers against Client's specification have been manufactured for use within and outside Pakistan.

PEL make oil immersed transformers with natural cooling are suitable for both indoor and outdoor installation. These transformers are manufactured according to BSS-171, IEC-76 or VDE-0532 tropicalised for suitable operation in Pakistan, Middle East and the Africa. The standardized pole mounted transformer up to 200 KVA capacities are sealed type while all larger sizes are conventional transformers with conservator tanks provided with dehydrating breather. All PEL make transforms are offered with tabulartanks as per temperature rise specs.