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IEEE 1584 · Engineering

Power Quality Analysis in Greece

Power quality analysis checks your electrical distribution system when it fails to sustain correct functioning of its loads — identifying the root cause, whether that's improper wiring, incorrect grounding, unbalanced loads, or improperly protected equipment, before it causes motor burnout, control system faults, power factor penalties, or transformer failure. Carelabs collects voltage, current, and power factor measurements at key points across your Greek facility using power quality analysers, referenced against IEEE Power Quality Standards and NFPA 70B, and delivers findings aligned with ELOT HD 384.

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Measuring in the season that matters

Operations whose load varies strongly through the year cannot be characterised by a single measurement window. Measuring during the quiet period produces a clean report and answers the wrong question.

What We Deliver

Measurement timed to real operation

The monitoring window is chosen to cover the loading condition that actually causes problems. For seasonal operations that means measuring in peak season, where both the plant and the surrounding network are most loaded.

WHY IT MATTERS

A clean report from the wrong month

A measurement campaign run during a quiet period will frequently show a compliant supply and few events. The plant then continues to trip through its busiest season, with a report on file stating that nothing is wrong.

  • Monitoring period selected against the operating cycle rather than against consultant availability, since timing determines whether the result means anything.
  • Measurement at the point of supply and at the affected process, because a dip that is modest at the incomer can be severe at the end of a loaded feeder.
  • Sufficient duration to capture intermittent events, which by definition do not occur on demand during a short visit.
  • Records aligned with production logs, without which a measurement archive is data rather than evidence about a specific loss.
  • Repeat measurement in a contrasting period where the operating profile varies strongly, rather than extrapolating one season's result to another.
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DELIVERABLES

What you receive

Issued against ELOT HD 384 and the recognised supply voltage characteristics, with the measurement period and its rationale stated.

  1. 1Event log characterising every dip, swell and interruption by depth and duration
  2. 2Distortion, unbalance and flicker assessed against applicable limits
  3. 3Correlation between recorded events and reported process interruptions
  4. 4Origin determination for each significant event, internal or upstream
  5. 5A statement of what the measurement period does and does not cover, so the result is not over-read
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How the study runs

01

Understand the operating year

We establish how load varies across the year and when problems actually occur, because that decides when measurement will be informative.

02

Establish the symptom

Which process stops, how often, and whether any pattern exists by shift, time of day or season is recorded before instruments are placed.

03

Place instrumentation

Monitoring goes at the point of supply and at the affected equipment, since the difference between the two records often contains the answer.

04

Record through the relevant period

Measurement runs across the loading condition that matters, long enough to capture events that occur intermittently rather than on demand.

05

Correlate and classify

Events are matched to production records and each significant one is classified as internal or upstream in origin.

06

Report with its limits stated

Findings are issued together with an explicit statement of what the measurement window covered, so conclusions are not extended beyond the evidence.

Frequently asked questions

During the period when problems actually occur, which is normally peak season. Both your own loading and the surrounding network's loading are highest then, and supply conditions typically degrade under those circumstances. A campaign run in the quiet period tends to produce a clean report that does not describe the conditions causing the trips.
A week is the usual minimum and longer where the problem is intermittent. The disturbances causing most disruption are typically the least frequent, so a short window can easily record nothing. Where a fault recurs monthly, the monitoring period has to reflect that interval to have any chance of capturing it.
In most cases yes. Comparing records at the point of supply against records inside the installation, and examining the shape and phase characteristics of each event, usually distinguishes an upstream disturbance from one generated internally. That determination decides who is actually able to act on it.
Supply voltage characteristics describe what the network operator must deliver, not what equipment tolerates. Modern electronic equipment is frequently more sensitive than the standard assumes, so a compliant supply and equipment that trips on it can both be true. The question then becomes what immunity your equipment needs.

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