Page 112 - MCCB-XT5

ABB | SACE Tmax XT

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
35).
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
Enable Off
parameters menu
I Harmonic Activates harmonic analysis of the currents Off
Analysis
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 85 % Un
set 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 110 % Un
set 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
Unbalance V Th set 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. The value is given as a percentage of rated voltage Un and can be 95 % Un
Th
set within the range: 10% to 95% Un, in 5% steps
Control threshold of the Spike counter.
V Spike The value is given as a percentage of Un and can be set within the 105 % Un
Threshold
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

110 | © 2022 ABB | 1SDH002039A1002 - ECN000212994 Ekip Touch - Measurements | 5 - Network Analyzer