Measure and fix
Power Analysis & Optimisation
We analyse your supply for voltage dips, harmonics and imbalance, then put in place solutions that stabilise and protect your equipment.
Breakers that trip for no clear reason, flickering lights, motors that run hot: these are usually symptoms of a power-quality problem, not the problem itself. We measure your supply over time to find the cause.
Our power quality audits are reported against EN 50160, the European standard for the voltage characteristics of public supply, so you can see exactly where your supply falls outside healthy limits.
What is included
- Power quality audits (EN 50160)
- Voltage dips, swells, harmonics and imbalance
- Power factor management
- Voltage stabiliser management
- Solutions that stabilise and protect equipment
What we look for
Nine power-quality problems
Drawn the way an analyser shows them. The dashed line is a healthy 50 Hz supply.
Voltage sag
A short drop in voltage, typically from large motors starting or faults on the network. Equipment resets, contactors drop out.
Voltage swell
A short rise above normal voltage, often when large loads switch off. Stressed insulation, failed electronics.
Harmonic distortion
A distorted waveform caused by drives, UPS units, LED drivers and other electronic loads. Hot transformers and neutrals, nuisance trips.
Transient overvoltages
Very fast spikes from switching or lightning. Damaged electronics, unexplained failures.
Interruption
A complete loss of supply, from a few cycles to minutes. Downtime, lost production and data.
Voltage unbalance
The three phases carry unequal voltages, usually from uneven single-phase loads. Motors overheat and lose life.
Voltage fluctuations
Repeated rises and falls in voltage from fluctuating loads. Visible light flicker.
Frequency variation
The supply drifts from 50 Hz, most often on generators or weak supplies. Clocks, motors and drives misbehave.
Poor power factor
Current lags behind voltage, so more current is drawn for the same useful work. Higher bills and overloaded cables.
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Tell us what you are seeing (tripping, flicker, heat, high bills) and we will come and measure. Data first, then the fix.