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Factory Digital Twin Automation

Results at a glance Aggregate Plant 1

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Corrected

Power Factor

53% → 93%

Changed monthly penalties to bonuses

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Penalties Eliminated

21%

Of the total bill cost due to reactive power charges removed

Production Unlocked

+32%

Higher output with only +8% bill increase

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Transformer Capacity Freed

127 kVA

Avoided the installation of a second unit

Overview

While supporting operations at my family’s construction company, I identified a critical bottleneck at two active aggregate sites: chronically low power factor (0.53 lagging) that triggered 21% utility penalties over the electricity bill, restricted production, and threatened the need for a costly new aditional transformer to expand production.


With no local experts available and no access to professional power-quality analyzers, I took full ownership of the solution. Having only theoretical knowledge from university and never having designed or commissioned a power factor correction system before, I bridged the gap from textbook exercises to real industrial implementation — sourcing every component myself despite significant challenges.
 

I discovered a 15-year-old automatic capacitor bank that had been completely abandoned: all capacitors had failed due to years of zero maintenance, the unit was switched off, and the original banks were severely undersized for the expanded plant. I refurbished it into a modern 12 capacitor hybrid system delivering 240 kVAR of dynamic correction. Using only a Fluke clamp multimeter and the utility bills, I tuned it to a stable 0.96 power factor across the full load range.


Simultaneously, I designed and built a complete 240 kVAR fixed capacitor bank from scratch for the second aggregate site — fully commissioned in just 48 hours.


These interventions eliminated all penalties, freed ~132 kVA of transformer capacity, and unlocked 32% higher production with almost no increase in energy costs — without external consultants or new equipment.

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EM

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