Puja Ferro Alloys Ltd. Goa

2004 -2009 Repeat job.

PROJECT DETAILS
5.5MVA, 33/0.150kv transformer for submerged electrical arc furnace for manufacturing Ferro Alloy.
RESULTS ACHIEVED
Installed 1.8mvar, 33kv harmonic filter for troubleshooting transformer HV winding insulation failures due to power system harmonic resonance.

Gajanan Ferro, Jamshedpur, Jharkhand

2012, Repeat jobs. 

 

PROJECT DETAILS
Submerged electric arc furnace 6mva, 33/0.150kv for Pig Iron manufacturing. Installed 33kv, 3.8mvar tuned harmonic filter and solved 24kA bus bar failures- heating/noise/vibrations/ worn-out due to power system harmonic resonance.
RESULTS ACHIEVED
Troubleshooting electrical harmonics and resonance failures by installing 33kv passive harmonic filter

Solving power system harmonic resonance; improving power quality and eliminating electrical failures

Abstract: An Electrical Arc Furnace in the vicinity of a hyperactive railway traction line was facing an unusual power quality harmonic distortion problem. The Gigantic 22kA copper bus bar used to overheat visibly red-hot, vibrate audibly loud loosening its nuts and bolts and wear out the bus bar's affected plates.