Electrical measurements and testing
Class A measurements. Reports you can rely on.
Power quality measurements with the Sonel PQM-711 analyser (class A, IEC 61000-4-30, EN 50160 reports) and laboratory electrical tests for equipment and installations.
What it includes
What we measure and test
- Power quality: energy and power balance, power factor and reactive energy, harmonics, voltage dips, phase unbalance
- Insulation resistance of machinery, apparatus and power lines
- Earthing measurements and continuity checks
- Testing of switchboards, relay protection and automation
- Tests for electric motors, storage batteries and power transformers
- Tests and checks at new or operating transformer substations
- Testing, pre-location and pinpointing of cable faults
The Sonel PQM-711 analyser
- Class A to IEC 61000-4-30; EN 50160 reports
- 5 voltage inputs and 4 current inputs; flexible clamps up to 3000 A
- 110–1000 V networks, directly or through instrument transformers
- Transients up to ±8000 V
- Remote reading over 4G and a GPS-synchronised clock
What a measurement gives us and what it is used for
- Energy and power balance → we size compensation, PV and BESS correctly
- Power factor and reactive energy → we avoid penalties and choose the right compensation
- Harmonics and distortion → we choose the filters and protect the equipment
- Voltage dips and events → we find the cause of outages and faults
- Phase unbalance and neutral current → we redistribute loads and reduce losses
What you get
What the client receives
A signed report
A measurement report with charts and the list of events, plus an interactive online version.
Compliant test reports
Laboratory test certificates drawn up as required.
Causes, not assumptions
A real example: in a refrigeration compressor room — permanently connected capacitors and harmonics that never showed on the bill.
Frequently asked questions
Short answers
What are power quality measurements used for?
For connecting solar and wind plants to the grid (Q-U curves, power factor), for power quality audits at industrial consumers, for sizing compensation and harmonic filters, and for analysing disconnections and overvoltages.
Does the installation have to be shut down during measurements?
No. Power quality is measured with the installation in operation, using flexible current clamps; the analyser can be read remotely over 4G.
Contact
Call us. An engineer answers.
Or write a few lines about your site — we will reply with a specific answer.
Prefer to talk?
+373 79 77 81 55- Emailoffice@escovoltaj.md
- Officestr. Bună Vestire 15/1, Chișinău, Republic of Moldova