Transformers & Rectifiers [I] Limited offers Rectifier Transformer. Transformers & Rectifiers [I] Limited is an ISO 9001:2000 certified company. The Rectifier Transformer comes in ranges of up to 160 KA DC. The Rectifier Transformer includes six pulse transformers with IPT and twelve pulse with IPT having Double Deck Construction, Bridge Connection. This Rectifier Transformer is applicable for Railway Traction.