Core Capabilities
Power Factor Correction (APFC)
Capacitor Banks & Reactors
Harmonics Filtration (AHF)
Static VAR Generators (SVG)
Power Quality Audit & AMC
Products & Components We Supply
| Products | Capacitors • Reactors • Static VAR Generators (SVG) • Active Harmonic Filters (AHF) • APFC Relays — Shreem Electric |
Why Power Quality Matters
Short supporting section addressing the business case, since many buyers don’t realize poor power factor is costing them money until it’s explained.
- ► Avoid low power factor penalty charges levied by DISCOMs
- ► Reduce line losses and free up sanctioned load capacity
- ► Protect VFDs, PLCs and sensitive electronics from harmonic distortion
- ► Extend the working life of transformers, cables and switchgear
Industries Served
Textile
Pharmaceuticals
Automotive
Government & Infrastructure
Steel
Food & Beverage
Our Case Studies
Proven solutions, Reliable performance, Real-world result
CASE STUDY 1
When More Capacitors Isn't the Answer: Power Quality Audit for Nagpur Cancer Hospital & Research Institute
Client Industry
Healthcare (Hospital & Research Institute)
Problem Statement:
A 1000 kVA facility was running a 200 kVAr contactor-switched APFC panel with no series reactors. An audit found harmonic distortion exceeding IEEE-519 limits, with reactive power swinging between 56 kVAr lagging and 20 kVAr leading depending on capacitor and solar operation — and current THD of 5–11%.
Our Solution:
A 1000 kVA facility was running a 200 kVAr contactor-switched APFC panel with no series reactors. An audit found harmonic distortion exceeding IEEE-519 limits, with reactive power swinging between 56 kVAr lagging and 20 kVAr leading depending on capacitor and solar operation — and current THD of 5–11%.
Results Delivered:
An engineered, multi-component correction plan — detuned reactor + SVG + AHF — sized to the plant’s actual measured behaviour rather than a standard capacitor upgrade.
CASE STUDY 2
When the Harmonic Filter Itself Fails: Power Quality Audit for One Asia Network
Client Industry
Skin Care & Cosmetics Manufacturing
Problem Statement:
A 2500 kVA facility already had a 300 A Active Harmonic Filter installed, yet an audit found the harmonic problem remained severe — current THD as high as 41.5% at the transformer LT side, exceeding IEEE-519 limits. The AHF’s own event log showed a fault cascade (fan failure leading to a full protective shutdown), revealing that the existing harmonic-compensation equipment had itself become unreliable.
Our Solution:
Recommended a larger 250 A, 3-phase, 4-wire AHF with load-side CT sensing, plus a 150 kVAr Hybrid PFC (APFC + detuned reactor + SVG) with HT-side CT sensing — along with proper ventilation and cooling for the new equipment, addressing the likely cause of the original filter’s failure.
Results Delivered:
Recommended a larger 250 A, 3-phase, 4-wire AHF with load-side CT sensing, plus a 150 kVAr Hybrid PFC (APFC + detuned reactor + SVG) with HT-side CT sensing — along with proper ventilation and cooling for the new equipment, addressing the likely cause of the original filter’s failure.
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