Vintromag India offers Bar Primary Current Transformers. Vintromag India manufactures Portable Welding Machines, Control Panel Boards, Current Transformers and All Kinds of 1 Phase and Three Phase Transformers. The Bar Primary Current Transformers are used to reduce the line current to a Value [e.G 1 amp.] which is suitable for standards measuring instruments, relays etc. The Bar Primary Current Transformers are used to isolate the measuring instruments, meters, relays etc. From direct line. The Bar Primary Current Transformers to protect measuring instruments against short circuit current.