eXpertmeter EM720 Brochure
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"SATECPowerful Solutions TRANSIENT & FAULT RECORDER POWER QUALITY ANALYZER

The eXpertmeter™ EM720 is a state-of-the-art power quality grid meter designed for utilities as well as for major industrial and commercial consumers. This all-in-one intelligent electronic device combines class 0.2S revenue meter capabilities with high-end power quality analysis, transient and fault recording functions, event & data logging and waveform recording. The meter complies with all appropriate energy meter and power quality analyzer standards. The EM720 is an ideal cost-effective solution for high and medium voltage grid applications. The instrument enables to limit space and...

The EM720 is a high precision, multi-purpose 4-quadrant meter used for active, reactive, and apparent energy/demand measurement and recording. The meter is intended for grid applications in generation, transmission and distribution utilities. It is also designed for major industrial and commercial consumers. The meter is class 0.2S approved according to IEC 62053-22 and designed to comply with the most demanding requirements. The meter delivers precision, reliability and long-term stability. With its all-in-one concept, the EM720 provides a solution to the constantly increasing requirements...

The EM720 is among the most advanced power quality analyzers and recorders on the market. The instrument is a product of SATEC's 20 years of experience in the development of power quality instruments. The EM720 is designed to fully comply with the most demanding industry standard, IEC 61000-4-30 Class A. It provides power quality reports and statistics according to EN50160, GOST13109 or GOST54149 (per country delivered to), complimented by comprehensive power quality event/data log with waveforms (3 voltage and 4 current inputs for waveform recording) available for detailed power quality...

Power Quality Events EVENT SUMMARY EVENT SUMMARY GRAPH

The EM720 provides a state-of-the-art fast transient recording capability. Transient pulses as short as 20ps at 50Hz (17ps at 60Hz) can be reliably recorded and analyzed. The EM720 can record such short pulses by a separate electronic channel with a sampling rate of 1024 samples/cycle. The transient amplitude is recorded relative to the ground in accordance with the strict definitions of power quality standards (EN50160). The instrument can measure transient pulses with an amplitude of up to 2kV (withstands up to 6kV). Four voltage waveforms (3 phases & neutral relative to the ground) are...

ACCURACY □ Active energy IEC 62053-22, class 0.2S □ Reactive energy, class 0.5S (under conditions as per IEC 62053-22 @ 0 < |PF| < 0.9) POWER QUALITY □ IEC 61000-4-7 class I: Harmonics and interharmonics measurement □IEC 61000-4-15: Flicker measurement □ IEC 61000-4-30 class A: Power quality measurement methods □EN50160: Voltage characteristics of electricity supplied by distribution networks □ IEC 61038: Real-time clock backup and accuracy □ GOST 13109 □ GOST R 54149-2010 POWER CONSUMPTION □IEC 62053-61 class I: Multi-function meter power consumption—3W/15VA per phase EMC □ IEC 61000-4-2 /...

Models The eXpertmeter™ models offer energy meter class 0.2S (IEC 62053-22), power quality analyzer (IEC 61000-4-30 class A), transient recorder (power master EM720T) fault recorder, basic electric measurements, control functions, event/data recording and waveform recording. Both models offer a choice between fast communication module (Ethernet + USB + RS-232/RS-485) and slow communication module (RS-232/RS-485). Additional communication modules can be added (up to 3 modules per device). EM720 BASIC EM720T POWER MASTER Transient recorder model Input/Output □ On-board 4 fast digital inputs...

The eXpertmeter™ EM720 combines the following devices, in a single sealed enclosure (BS7856 standard) : □ Precise Class 0.2S four-quadrant energy and power demand meter (meets the more demanding 0.1 % accuracy standard), multiple tariffs & Time-of-Use (TOU, 16 summary energy and demand registers, accumulation of energy pulses from external watt-meters, block and sliding demands), transformer and line losses, unique anti-tampering, antivandalism and self-test functions □ Power quality analyzer and recorder □ Sags/swells (dips/over-voltages) □ Interruptions □ Frequency variations □ Flicker...

FULL SCALE@ INPUT RANGE Voltage V4 (calculated) Voltage V1-V3 Voltage V4 (calculated) Line current I1- I4 Fault current I1- I4 Active power Reactive power Apparent power Power factor Frequency 69/120 x PT ratio 69/120 x PT ratio CT primary current CT primary current 3xV FSxCT/1000 3xV FSxCT/1000 3xV FSxCT/1000 1.000 50Hz 60Hz Total Harmonic Distortion, THD Total Demand Distortion, TDD, % Active energy Import & Export Reactive energy Class 0.5S under conditions as per Import & Export IEC 62053-22:2003 @ 0 < |PF| < 0.9 Apparent energy Class 0.2S under conditions as per Phasor angles...

EM720 ORDER STRING MODEL Basic Model EM720 Transient Power Master EM720T RECHARGEABLE BATTERY Without Battery - With Battery (up to 6 hours) B OPTIONAL MODULES (see notes) [1] Default communication: IRIG-B, IR and RS-232/485 [1] Default communication plus USB, Ethernet and 2nd RS-232/485 (2 cards) [1] Default communication plus USB, Ethernet and 2nd RS-232/485 with IEC 61850 protocol support (2 cards) [1] Replacing the IRIG-B on the default communication card with USB and Ethernet [1] Replacing the IRIG-B on the default communication card with USB, Ethernet and IEC 61850...