Profile: Macroplast Pvt. Ltd. specializes in the manufacture and supply of instrument transformers up to 132 KV Class. We manufacture instrument, current and potential transformers. Current transformers are designed to reduce the line current to a value suitable for supply to measuring instruments, relays & breakers. They isolate measuring instruments from high voltage side of installation. They also protect measuring instruments against short circuit current. They are designed to sense the fault in current and operate relays in order to isolate the faulty part of the system. The potential transformers are designed for the measurement of high system voltage by stepping it down to a value suitable for the measuring instrument. They can be used for metering and protection. For protection, an additional secondary winding is provided which is connected in open delta so that in the event of an earth fault on any of the phases, appropriate voltage is developed across open delta terminals, which in turn actuates a tripping mechanism. We carry out coil winding & insulation in dust free air conditioned rooms. We carry out all routine test facilities as per IS-2705/1992 & IEC for current transformers & as per IS-3156/1992 & IEC for voltage transformers. We have in-house facility for the fabrication of tanks to meet any urgent requirement of our customers. We serve electricity boards, distribution & transmission companies, power & development departments and various organizations.