Power Quality Monitor - PeakTech 4145 Bedienungsanleitung

F4 Selection of Zoom or Cursor.
F5 Switch between RUN and HOLD.
 Tips and Hints
Check the inrush currents and their duration, use the Cursor for readout of
momentary values. Check if fuses, circuit breakers, and conductors in the power
distribution system can withstand the inrush current during this period. Check also if
phase voltage stay stable enough.
High peak currents can cause circuit breakers to trip unexpectedly. Measuring Inrush
current can help in setting trip levels. Since the Analyzer simultaneously captures
Inrush current and voltage Trends, you can use this measurement to check voltage
stability as large loads come on line.
7.11. Power Quality Monitoring
Power Quality Monitoring displays a Bar graph screen. This screen show whether
important Power Quality parameters meet requirements. Parameters include: RMS
voltages, Harmonics, Flicker, Dips&Swells/Interruptions/Rapid Voltage Changes,
Unbalance, and Frequency.
The length of a bar increases if the related parameter is further away from its nominal
value. The bar turns from green to red if an allowed tolerance requirement is violated.
Use the direction keys to position the cursor on a particular bar and measuring data
belonging to that bar is displayed in the screen header.
Power Quality Monitoring is usually done during a long observation period. The
function is entered via the【MONITOR】key and start menu to define immediate or
timed start of the measurement. Minimum duration of the measurement is 2 hours,
and maximum is 1 week.
The Power Quality parameters RMS voltages, Harmonics, and Flicker have a bar for
each phase. From left to right these bars are related to the phase A (L1), B (L2) and
C (L3).
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