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ESM-HV
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ESM-ET
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ESM-SV
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Connection type
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power line directly,
or conventional instrument current and voltage transformers
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electronic instrument transformers of current
and voltage
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IEC 61850-9-2 LE SV256 bus via 3 ports 100Base-TX
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Rated input values
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current, A: 1/5 (max 2/10)
(starts from 0.1%),
voltage, V: 57.7 (100), 230 (400); 400 (690)
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current, V: 0.15; 0.2; 0.225; 0.333; 1; 1.625; 2; 4
voltage, V: 0.2; 0.333; 1; 1.625; 2; 3.25; 4
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according to SV settings
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TOU revenue metering
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in accordance with IEC 62052-11, IEC 62053-22, IEC 62053-23
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Energy class (active / reactive)
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0.2S/0.5 or 0.5S/1
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0.5S/1
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0.2S/0.5
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Calibration interval
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12 years
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12 years
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16 years
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Time of use (TOU) metering
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programmable TOU records (255 seasons, 255 days, 8 tariff zones per day)
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Power loads profile
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profile 1 — 5094 records, profile 2 — 1536 records
demand interval is configurable (period from 1 s to 12 hours)
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Storage of readings (total and TOU)
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since reset, for the current day and previous 30 days, for the current month and 12 previous months, for the current year and 10 previous years
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Duration of data storage
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20 years without auxiliary power
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Power quality monitoring
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in accordance with
IEC 61000-4-30
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A or S
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S
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A
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Reports
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in accordance with GOST 33073-2014
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Measured parameters and measurement accuracy
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voltage RMS (phase, line-to-line, average), and harmonics from 1 to 50: ± 0.1%,
currents (phase and average) ± 0.1%,
power (active, reactive and apparent: phase and total) ± 0.5%, Frequency ± 0.01 Hz,
power factor (phase and average) ± 0.1 ° (for details, please, read user's manual)
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Digital signals
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up to 64 inputs and outputs by connection up to 4 ENMV, programmable logic:
AND, OR, CMP, TIMER, VALID
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Interfaces and protocols
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2 × RS-485, IEC 60870-5-101, Modbus RTU, connection of display module ENMI,
I/O modules ENMV
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2(4) × 100Base-TX or 2 × 100Base-TX, 2 × 100Base‑FX LC SM, PRP and RSTP
IEC 61850, IEC 60870-5-104, Modbus TCP, FTP, SNMP, SNTP
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Power supply
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18...36 VDC или 120...370 VDC/ 100...265 VAC (45...55 Hz), 10 VA (19 VA with ENMI)
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Operating conditions and design
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−40...+70 °C / 75 × 100 × 110 mm, DIN rail mounting,
IP40 (without ENMI), IP51 (front panel of ENMI)
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Sealing of connecting circuits
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transparent sealing cover;
RJ-45 connector locks for ESM-ET and ESM-SV on demand
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Manual 
Software 
