Overview:

Plant turnarounds or shutdowns, are one of the critical times in the operation of a plant. Shutdowns have an intense impact on the plant’s financial future either in positive or negative ways. Major plant shutdowns occur due to faults occurring in a system if preventive measures are not taken at the right time, whereas planned shutdowns are scheduled for maintenance and retrofitting purpose. Industries like Cement manufacturing, Pharmaceuticals, automobile assembly & manufacturing and food processing plants face major challenges during shutdowns. Component retrofitting, maintenance check, repair and re-installation of devices are generally considered during plant shutdowns. One such requirement is of re-installation of Current Transformers as and when their quality and life degrades or when the need arises.

Problem Statement:

As discussed above, plant shutdown for re-installation of current transformers leads to huge downtime as well as heavy revenue loss. Because while changing a current transformer it is mandatory to remove all connections, disconnect the busbars or cables and then insert them in the CTs.