The conventional objective of implementing Power Management System (PMS) is monitoring of power system, remote operation, event and alarm logging, trending, synchronisation, load sharing and load shedding. While it is important to operate power system of the plant in the efficient manner, it only serves limited purpose.
At L&T-NPCIL Special Steel & Heavy Forging Plant at Hazira (LTSHF), a JV between L&T and NPCIL, the aspirations were much more than the above stated traditional objectives. They questioned limits of conventional PMS
And we helped them to find answers to these questions
Control & Automation Business Unit of EAIC deployed their indegenously developed state of the art Power Management System,, at "LTSHF" to specifically meet these innovative objectives.
"LTSHF" needs about 60 MW of power when all production units are functional at their respective rated capacities. Any consumer need to pay Maximum Demand (MD) charges to Utilily company, in case they draw power from them. MD charges are typically, Rs. 270/- per KVA per month. Which works out to be Rs. 32 L per MVA per year. 60 MW power is needed only for few days in a month owing to the nature of production process. Hence, the prudent approach is to not have contract of 60 MW MD with the utility company. One can have agreement of only 30 MW of MD with the utility company and thus save about Rs. 10 Cr per year towards MD charges. Balance power as per production schedule could be sourced from power trading exchange.
At "LTSHF", the contracted demand was kept at 30 MVA. The balance 30 MVA power was purchased through the power trading exchange based on the the projection given by the iVisionmax-PMSTM system. During the 5 months period May 2012 to September 2012, "LTSHF" saved Rs. 4.52 Cr by virtue of reduced contracted demand and Rs. 0.45 Cr through procuring cheaper electricity through power trading exchange. i Vision max PMS enabled the management to have regular review meetings on Energy Consumption Performance and helped bringing in much needed Energy Saving awareness amongst various users.
The system comprised of 8 RTUs, Integration of Relays on IEC 61850, Redundant F/O Ring network, iDataMan DCUs, MFM's, Redundant Servers and Work Stations (count) as illustrated in digram given
C&A provides integrated Electrical & Automation solutions and associated services for Industry, Energy & Infrastructure segment based on vast experience in the field of AC/DC Drives, Automation, SCADA, IT & Telecom competencies.
Our fully integrated, comprehensive, real-time solutions are based on hardware and software platforms using contemporary technologies. The value addition includes system design, application engineering, application software, documentation, commissioning and after sales services. The solutions are optimized to deliver maximum efficiency and economy at all stages to ensure high performance, productivity and profitability.
“Control & Automation business unit, a part L&T Electrical & Automation - offers a ‘Spectrum of Choice’ through Integrated Solutions built on state-of-the-art technology for complete Electrical & Automation needs of industries and infrastructure segments. With three decades of experience backed by strong project Management skills, it ensures on-time project delivery and reduces total costs of ownership, increases productivity, and enhances safety & security”
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