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 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
ESM-HV

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