Motor failures

The Hindu 3Presses at Hyderabad, Chennai, Meramalainagar

2004 -2006, Repeat jobs.

PROJECT DETAILS
Three printing news paper presses at Hyderabad, Chennai at Meramalainagar. To eliminate frequent tripping and electronics failures with Mitsubishi supplier fully automatic printing press systems which extensively used VFD and DC Drives,
RESULTS ACHIEVED
Supplied six sets Tuned Harmonic Filters for transformer capacity of between 1600 to 2500kva sizes. Limited harmonic distortions and resolved tripping and failure issues for electronics, motors, capacitors, Switchgear and cable overheating.

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 power system harmonic resonance, Improving power quality and Eliminating electrical failure

Abstract: An Electrical Arc Furnace near a hyperactive railway traction line was facing electrical failure from an unusual power quality harmonic distortion problem. The Gigantic 22kA copper bus bar used to overheat visibly red-hot, vibrate audibly loud loosening nuts and bolts and wear out affected plates. In-addition, it frequently encountered other harmonic problems like bulging and blasting of detuned capacitor, motor overheating and failures, HPMV lighting ballast failures, 33kv fuse blowing and overheating of the Electric Arc Furnace transformer.

Solving DC motor, VFD drive failure; Enhancing production by 25%, and Slashing energy bill by 9%

Abstract:- An ACSR conductor manufacturing plant was facing high incidence of DC motor and AC VFD Drive Failure due to bad power quality and high harmonic distortion. The company is a world leader in non-ferrous metal industry. It manufactures ACSR conductors for HV and EHV power transmission and distribution lines. It had been facing a high incidence of operational problem across its plants A and B. It affected all electrical and electronic equipment with its conductor making process.

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.