ESM
ESM smart meter operates as a revenue meter (IEC 62052-11), power quality analyzer (IEC 61000-4-30), and a multifunctional measuring device.
As a revenue meter, ESM measures four‑quadrant active and reactive energy, and uses its built-in memory to store power demand and energy readings by time‑of‑use (TOU) tariffs.
As a power quality analyzer, ESM conforms to Classes A and S of IEC 61000‑4‑30:2008. ESM provides immediate data and automatically generated power quality reports.
As a multifunctional measuring device, ESM provides measurement data via standard communication protocols for integration with automation systems. ESM IEC 61850 (Edition 2.0) implementation is certified UCAiug Level A by DNV GL (KEMA).
Similar to ENIP-2, ESM can connect to external ENMV modules for digital input and output. ENMI display modules are used for visualization.
Revenue metering
- in accordance with IEC 62052-11:2003, IEC 62053-22:2003 and IEC 62053-23:2003, active energy class 0,2S or 0,5S reactive energy class 0.5 or 1, time-of-use records (TOU, 255 types of seasons, 255 types of days, 8 tariff zones per day)
Power quality metering
- in accordance with IEC 61000-4-30:2008 (classes A, S), EN 50160:2010, IEC 61000-4-7:2009 (class I), IEC
61000-4-15:2010
Measurements
- RMS and from 1 up to 50 harmonics values of voltages (phase, line-to-line and average), currents (phase and average), power (active, reactive and apparent: phase and total)
- Frequency, power factor (phase and average)
Phasor Measurement Unit
- The synchrophasor measurements in accordance with IEEE C37.118.1
