Power Quality Solutions — pqExcel Solutions LLP

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Power Quality Solutions

Engineered mitigation systems designed from measured site data — improving power factor, eliminating harmonics, and ensuring compliance with IEEE 519 and EN50160.

What we deliver

From measurement to mitigation — engineered for your site

pqExcel delivers Power Quality Solutions that are engineered from actual measured data — not catalogue selections. Every solution begins with a power quality audit or measurement study, followed by engineering analysis, and then solution design specific to your load profile and system conditions.

Our solutions address harmonic distortion, poor power factor, voltage instability, and transient events — delivering measurable improvements in electrical system reliability, energy efficiency, and compliance with international standards.

01

Measure

Power quality audit and site measurement using power quality analysers — capturing actual load conditions and disturbance levels

02

Analyse

Engineering analysis of measured data — harmonic studies, power factor assessment, and load profile evaluation

03

Design

Solution design based on analysis — selecting and sizing the right mitigation system for your specific requirements

04

Validate

Post-installation measurement to verify performance against design targets and compliance standards

Our process

From power quality measurement to corrected output

Every power quality solution we deliver follows a structured, measurement-driven process — ensuring the solution is validated by data before and after implementation.

Three-step flow: Power Quality Measurement → Data Analysis (waveform + harmonic spectrum) → Power Quality Mitigation → Corrected Output
Solution portfolio

Power quality mitigation solutions

Five engineered solutions — each addressing specific power quality challenges. Solution selection is based on your measured site data and load profile.

Reactive Power & Harmonic Mitigation

Reactive power

APFC / RTPFC Panel

Reactive power compensation using capacitors and detuned reactors. Contactor-based (APFC) for stable loads; thyristor-based (RTPFC) for dynamic loads requiring transient-free switching.

Eliminates utility PF penalties
Detuned reactors prevent resonance
Switching method based on load profile
Reactive + harmonics

Static VAR Generator (SVG)

Primary function is reactive power compensation with millisecond response. Harmonic mitigation is also achievable — suitable for arc furnaces, welding, and rapidly varying loads.

Millisecond response to load changes
Harmonic mitigation also achievable
Ideal for variable and fluctuating loads
Harmonics + reactive

Active Harmonic Filter (AHF)

Primary function is harmonic mitigation — reducing THD in real time to meet IEEE 519 and EN50160 limits. Reactive power compensation is also achievable in a single solution.

Dynamic real-time harmonic cancellation
Reactive power compensation also achievable
Complies with IEEE 519 & EN50160
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Passive + active

Hybrid System

Passive component handles base load correction; active component manages dynamic and fluctuating loads in real time. Cost-optimised for complex mixed-load environments.

Passive for base load, active for dynamic
Cost-optimised for mixed-load environments
Complies with IEEE 519 & EN50160

Electrical Protection

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Transient Voltage Surge Suppressor (TVSS)

Surge protection

Protects sensitive and critical equipment from voltage spikes, transients, and lightning surges — preventing damage, unplanned downtime, and production losses across industrial and commercial facilities.

Protects VFDs, PLCs, and sensitive electronics from transients
Reduces motor stress, overheating, and equipment wear
Extends equipment life and reduces maintenance costs
Minimises downtime and production losses from surge events
How we work

Solution design begins with measurement — not assumption

Every power quality solution pqExcel delivers is engineered from actual site data. We do not recommend solutions from a catalogue — we design them from your measured load conditions, harmonic profile, and system requirements.

Post-installation, we validate performance through measurement — confirming that THD, power factor, and compliance parameters meet design targets before handover.

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Site measurement and power quality audit

Site measurement using power quality analysers at key points — capturing harmonics, power factor, voltage events, and load profile

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Harmonic and load analysis

Engineering analysis of measured data — identifying disturbance sources and quantifying mitigation requirements

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Solution design and specification

Selection, sizing, and specification of the right mitigation system — APFC, SVG, AHF, Hybrid, or TVSS

Installation, commissioning, and validation

Post-installation measurement to verify THD, power factor, and compliance against design targets

What you gain

Business outcomes from power quality solutions

Measurable improvements in electrical system performance, energy efficiency, and compliance — delivered through engineered mitigation.

Improved power factor

Sustained improvement in power factor — eliminating utility penalties, reducing reactive power charges, and improving the efficiency of your electrical distribution system.

Reduced harmonic distortion

THD levels brought within IEEE 519 and EN50160 limits — reducing heat generation in cables and transformers, improving equipment performance, and extending system life.

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Compliance achieved

Documented compliance with IEEE 519, EN50160, and utility harmonic injection limits — supported by pre and post-installation measurement reports.

Reduced energy losses

Elimination of harmonic-related losses in transformers, cables, and motors — reducing energy consumption and improving overall system efficiency.

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Enhanced equipment reliability

Reduced electrical stress on motors, drives, transformers, and sensitive electronics — fewer breakdowns, lower maintenance costs, and extended equipment life.

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Protection from transients

Critical equipment protected from voltage spikes, surges, and lightning-induced transients — minimising unplanned downtime and production losses.

Want to improve your power quality?

Talk to our engineers — we'll assess your facility and recommend the right mitigation solution based on measured data.

Discuss your requirements Schedule a power quality audit