Page 122 - Sace Emax 2 Manual for design engineers

ABB | SACE Emax 2
5 - Network Analyzer

Presentation The Network Analyzer function allows you to set voltage and current controls over a long period, in order to
analyze your system.
To this purpose, voltages and currents are monitored, so as to find:
• voltage sequences (Over, Under, Pos and neg)
• unbalance between voltages (Unbalance)
• short voltage drops (Interruption) and slow sags (Sag)
• short voltage increases (Spikes) and slow swells (Swell)
• harmonic distortion of voltages and currents (THD)
Each monitoring is associated with control parameters set by the user and updated each time the set control
conditions occur.

Parameters The configuration parameters of the counters are available in the Settings - Network Analyzer menu (page 46).
The Monitor time parameter, which defines the length of each monitoring session, can also be set in the
Settings menu.
NOTE: the parameter is the one used for measuring the maximum currents and voltages
Main Menu
Parameter Description Default
Activates/deactivates the function and its availability in the parameters
Enable Off
menu
I Harmonic
Analysis Activates harmonic analysis of the currents Off
V Harmonic Activates harmonic analysis of the voltages Off
Analysis
Control threshold of the Under V Th counter
V Threshold Low The value is given as a percentage of rated voltage Un and can be set 85 % Un
within the range: 75% to 95%, in 5% steps.
Control threshold of the Over V Th counter
V Threshold High The value is given as a percentage of rated voltage Un and can be set 110 % Un
within the range: 105, 110, 115 % Un
Alarm threshold for the Unbalance counter.
The value is given as a percentage of rated voltage Un and can be set
Unbalance V Th within the range: 2% to 10% Un, in 1% steps. 3 % Un
NOTE: 0% =symmetrical and balanced system

Control threshold of the V microinterr counter.
V microinterr. Th The value is given as a percentage of rated voltage Un and can be set 95 % Un
within the range: 10% to 95% Un, in 5% steps
Control threshold of the Spike counter.
V Spike Threshold The value is given as a percentage of Un and can be set within the 105 % Un
range: 105% to 125% Un, in 5% steps
Sags Menu with the control parameters of the voltage sags
Swells Menu with the control parameters of the voltage swells
The submenu, which becomes available by enabling the harmonic
Harmonics current and/or voltage analysis, allows the harmonic control
parameters to be configured

Continued on the next page

120 | © 2020 ABB | 1SDH001330R1002 - ECN000134959 - Rev. A Ekip Touch - Measurements | 5 - Network Analyzer