Bannari Amman Sugars Ltd, Sathayamangalam

Repeat 2009 -2010  Tamil Nadu

4000tcd crushing capacity cane sugar plant with 20mw Turbo Generator Co-generation power plant. Supplied 4nos 790A tuned harmonic filters across three winding converter transformers 2nos, 2.5mva 11kv/433v.
First transformer connected a 750kw DC Motor through a doublet converter and Second one to 670kw and 450kw dc mill motors across its two secondary winding. 10% Energy savings verified. Eliminated DC drives electronic card failure and voltage sag tripping.

Comprehensive Power Quality & Harmonic Audit Study with solutions in a large tyre manufacturing plant

Abstract: Large continuous process plants are increasingly resorting to use of non linear loads (NLL) such as DC drives, variable speed AC drives, UPS, increased electronic controls etc. to improve performance and productivity of their plants. The plant engineers are increasingly facing unfamiliar problems related to power quality (PQ) mainly problem of distortion of fundamental wave shape and associated effects.  

Solving failures in VFD, DC drives and motors; Enhancing production by 25%, and Slashing energy bill by 9%

Abstract: In this case study, a world leader in non-ferrous metal industry engaged in the manufacturing ACSR conductors for HT and EHV electrical power transmissions and distributions, had been facing high incidence of operational problems across its plants A and B, due to bad Power Quality and high harmonic distortions with its electrical power systems. The problem arose because of two reasons. First, it was using over 60% Non-Linear-Loads in the forms of DC-drives in rolling mills, Variable-Frequency-Drives (VFD) in the conductor making process and PLC in control system.

Enhancing 3P, Power, Productivity, and Profitability; solving drive stalling and increasing sugar recovery

Abstract- A 3500TCD sugar factory installed across 3mw 415v TG four DC Mill drives each 450kw and highly fluctuating cane preparation section's slip ring induction motor loads namely 2nos 560kw Fiberizer, 225kw Leveler and 187kw Chopper. It wanted uninterrupted power export from its 6mw 11kv TG and connected across it stable linear loads of boiling and sugar houses through a set of 3.15mva and 1.5mva, 11kv/415v, Dyn11 transformers.