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Carelabs

IEEE 1584 · Engineering

Power Quality Analysis Services in Spain | Carelabs Experts

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 Spanish facility using power quality analysers, referenced against IEEE Power Quality Standards and NFPA 70B, and delivers findings aligned with REBT.

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Measuring what your equipment actually receives

Power quality covers everything about the supply waveform that is not its fundamental frequency and magnitude: dips, swells, interruptions, flicker, unbalance and distortion. Each damages equipment differently.

What We Deliver

Voltage dips characterised properly

Dips are recorded by depth and duration rather than counted, because a process trips according to both. A record of thirty events is not useful; a record of thirty events plotted against equipment immunity tells you which ones mattered.

WHY IT MATTERS

Most process trips are never explained

A line stops, nothing is found, production resumes and the event is logged as unexplained. Where that recurs, the cause is frequently a supply disturbance lasting under a second, which no one was measuring at the time it happened.

  • Monitoring installed at the point of supply and at the affected process, since a dip that is modest at the incomer can be severe at the end of a loaded feeder.
  • Measurement conducted to a defined method so results are comparable with the distribution company's own data if the cause proves to be upstream.
  • Equipment immunity established from datasheets where available, which converts a list of events into a statement about which ones your plant can survive.
  • Internal and external causes separated, because a dip originating inside the installation is your problem to fix and one arriving from the network is not.
  • Sufficient duration to capture intermittent events, since the disturbances that cause the most disruption are by definition the ones that do not occur on demand.
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DELIVERABLES

What you receive

Issued against REBT and the recognised supply voltage characteristics, with the measurement method and period stated.

  1. 1Event log with each dip, swell and interruption characterised by depth and duration
  2. 2Distortion, unbalance and flicker assessed against applicable limits
  3. 3Correlation between recorded events and reported process interruptions
  4. 4A determination of whether each significant event originated inside the installation or upstream
  5. 5Mitigation options matched to the disturbance type, since no single device addresses all of them
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How the study runs

01

Establish the symptom

We start from what is actually happening: which process stops, how often, and whether there is any pattern by time of day, shift or season.

02

Place the instruments

Monitoring is installed at the point of supply and at the affected equipment, because the difference between those two records is often where the answer is.

03

Monitor across a real period

Recording runs long enough to capture intermittent events, typically a minimum of one week and longer where the disturbance is infrequent.

04

Correlate with production

Recorded events are matched against production logs, which converts a measurement record into evidence about specific interruptions.

05

Determine origin

Each significant event is assessed as internal or upstream, since that determines entirely who can act on it and what mitigation is appropriate.

06

Report and recommend

Mitigation is matched to the disturbance actually present, whether that is ride-through equipment, a UPS on the control system, or a change upstream.

Frequently asked questions

A week is the usual minimum, and longer where the problem is intermittent. The disturbances that cause the most disruption are typically the least frequent, so a short monitoring window can easily record nothing and be misread as evidence that the supply is sound. Where a fault recurs monthly, the monitoring period should reflect that.
In most cases yes. Comparing records at the point of supply against records inside the installation, and examining the shape and phase characteristics of the event, usually distinguishes a disturbance arriving from upstream from one generated internally. That determination matters because it decides who is able to do anything about it.
It solves some and not others. A UPS protects what is connected to it, which makes it well suited to control systems and instrumentation where the disruption usually originates. It is rarely economic for full process loads, where ride-through equipment, drive parameter changes or addressing the source are usually more appropriate.
Supply voltage characteristics define what a network operator must deliver, not what a given piece of equipment can tolerate. Modern electronic equipment is frequently more sensitive than the supply standard assumes. A compliant supply and equipment that trips on it can both be true, which shifts the question to immunity rather than compliance.

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