Multi-Tech Systems 7500 - Manual (Page 301)

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TECHNICAL NOTE
Power Quality: ION
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Meters and EN50160
EN50160 is a European standard that defines the voltage characteristics of the
electricity supplied by public distribution systems. It provides the limits within
which any customer can expect voltage characteristics to remain. Some ION
meters have a default configuration that measures the supply voltage and presents
EN50160 statistics according to a set of guidelines defined by Eurelectric
(UNIPEDE).
(Visit http://unipede.eurelectric.org for a copy of the Measurement Guide for
Voltage Characteristics– reference 23002Ren9531.)
These factory configured meters already provide data to aid in EN50160
compliance determinations. The meter’s front panel and the Vista diagrams
display a range of EN50160 statistical information by default. Certain ION meters
are also provided with many EN50160 parameters for Modbus systems. Refer to
the meter’s User’s Guide for more information on these parameters and their
Modbus addresses.
This technical note summarizes the EN50160 data and statistics measured by the
ION meters that comply with the EN50160 standard. A description of the EN50160
counters and external controls is also provided.
In This Document
Default EN50160 Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 302
Power Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 302
Magnitude of Voltage Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 304
Flicker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 307
Supply Voltage Dips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 310
Short and Long Interruptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 312
Temporary Overvoltages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 313
Supply Voltage Unbalance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 315
Harmonic Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 316
Interharmonic Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 319
Mains Signaling Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 321
EN50160 External Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 323