ESM

ESM smart meter operates as a revenue meter (IEC 62052-11), a power quality analyzer (IEC 61000-4-30), and a measuring transducer.  

As a revenue meter, ESM counts four-quadrant active and reactive energy. ESM uses its built-in memory to store power demands and energy readings by time-ofuse (TOU) tariffs.   

ESM analyzes power quality in accordance with IEC 61000-4-30 standard (classes A, and S), and automatically generates power quality reports. 

ESM is certified to IEC 61850 Ed.2 (Level A) by the international non-profit corporation UCA International Users Group.

ESM measures the parameters of electrical grid, and can integrate with automation and billing systems. 

ENMI display panel connected with a single patch cord can serve as a HMI for ESM. ENMI can be mounted separately, or attached to the back of ESM. 

Connected via RS-485, ENMV I/O modules can serve as extensions for digital input and output, e.g. ESM with ENMV-1-16-3/R can be used to control switchgear.


for connection to the electromagnetic measuring transformers of current and voltage transformers

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