Power Quality and Harmonic Analysis

An investigation can also help when new equipment is proposed or several occupants share an installation. The scope should establish what question needs answering and which part of the property needs measurement, rather than treating a general complaint about power as a defined diagnosis.

Work can include reviewing reports and equipment details, planning measurements, recording relevant voltage and current behaviour and explaining the findings. The investigation identifies the point measured and the period covered so the owner can understand what the evidence represents.

The result may lead to a local repair, an equipment assessment, further monitoring or a design brief for changes. Proposed corrective equipment is considered against the findings. The report should explain why the next step is appropriate before the client commits to an installation or replacement.

Power quality describes several aspects of electrical behaviour, not one single fault. Harmonics are frequency components at multiples of the fundamental frequency. Some connected loads can contribute to waveform distortion, but a harmonic reading alone does not establish that it caused the reported issue.

A short measurement and a recording over a representative period answer different questions. The right method depends on whether the problem is continuous, occasional or connected with particular equipment use. Existing electrical faults may also need separate investigation alongside the measurement work.

Provide the address, affected equipment, timing of incidents and any previous reports. Explain whether neighbours, other units or only one device appear affected, while keeping those observations separate from a conclusion about the cause. Include recent installations or changes in property use.

Access to measuring points is planned safely by the electrical specialist. Confirm the owner or manager who can authorise work and any occupant restrictions. Do not open electrical equipment or connect test devices yourself; the installation and safe method determine how measurements are obtained.

We clarify the symptoms and scope, review the available information and arrange the measurement plan. Recording is coordinated with the relevant use of the property. A simple log of equipment operation or reported incidents can help connect the data with what people experienced.

The report explains the measured behaviour and any limitation. If the problem did not occur during recording, that is stated with the next evidence needed. Recommendations distinguish further investigation from a defined remedy, making the decision understandable to owners and managing agents.

The number of measuring points, recording duration, access and analysis required affect cost. An investigation in one unit differs from assessing a shared supply or several distribution points. Additional work may be needed if the first measurement does not capture representative conditions.

Instrument connection and removal can require planned access or interruption, depending on the installation. Agree the timing with occupants and relevant managers. The handover includes findings and next actions, with the original symptoms retained so any later repair can be checked against the actual problem.

Managing agents need property and responsibility boundaries clear. Retail premises can have changing loads linked to trading equipment. Offices may involve shared distribution and separately occupied areas, while hospitality has equipment cycles that affect the timing of investigation.

The full service and project offering supports all sectors. The scope can focus on an individual installation or a broader property issue, based on the symptoms and the information needed to decide the next step.

Our coverage includes Northumberland, Tyne and Wear, County Durham and Tees Valley, including Berwick-upon-Tweed, Alnwick, Morpeth, Hexham, Newcastle, Gateshead, Sunderland, Durham, Darlington, Hartlepool, Stockton-on-Tees and Middlesbrough.

We coordinate access with the people managing and using each property. Wider specialist and multi-site requirements can be assessed alongside the listed areas. View all locations.

No. Similar symptoms can have different causes within equipment, wiring or the supply. An appropriate investigation is needed before responsibility or the repair is identified.

Yes, where access and authority are established. The scope identifies the relevant measurement points and any interfaces with owners, occupiers or other responsible parties.

Establish the problem first. Equipment selected without suitable evidence may not address the cause and can leave the original issue unresolved.

The report should explain the conditions and period covered. If the fault is intermittent, further recording or investigation under different conditions may be needed rather than concluding the reported problem never happened.

Read what to include when reporting a fault and what happens when no fault is found. HSE electrical safety guidance explains the related safety context for electrical work.

Explore Electrical Services, Power and Distribution, Commercial Electrical Repairs, Fault Finding and Diagnostics and Surveys and Feasibility. Browse all services, maintenance and projects.

Contact Black & White Property Services with the address, symptoms, equipment details and incident times. Include existing findings and the person who can arrange access.