News Paper Printing
TYPE OF INDUSTRY – News Paper Printing Industry, Uttar Pradesh, India
YEAR OF IMPLEMENTATION – 2008
After conducting Power Quality Audit in the plant following observation are made.
The THD I is found 17 %. Which is very high. The PF is low 0.69.
- Frequent Electrical breakdowns in the M/cs during printing process. which result to lots of wastage of Paper and Production Time.
The problems were serious during operation on Generators.
More Electricity Bill due to low Power Factor.
Automatic Passive Harmonic Filter Banks to improve Power Factor & Control Harmonics.
System Improvement Post Implementation
Measurement at main incomer — Supply
|Sr No.||Parameters||Before Installation of Harmonic Filter banks||After Installation of Harmonic Filter bank|
|1.||Fundamental Current I1||321 A||226 A|
|2.||3rd Harmonic Current I3||—||—|
|3.||5th Harmonic Current I5||68.4 A||23. 8 A|
|4.||7th Harmonic Current I7||8.4 A||5 A|
|5.||11th Harmonic Current I11||19.2 A||12 A|
|6.||13th Harmonic Current I13||18 A||12 A|
|7.||17th Harmonic current I17||15.6 A||12 A|
|8.||Total Harmonic Distortion Current %||16.81%||7.2 %|
|10.||True RMS current Amp||321||224|
|11.||True RMS Voltage V/ Phase||228||230|
THDI reduced to < 7.2% from 17%
PF improvement to 0.99 from 0.69 lag
30 % saving in KVA decreased.
Reduction in Electrical Breakdown in the Plant.
Reduction in Monthly Electricity Bill.