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ARCON 3G
ARCON 3G MANUAL
MN026015EN October 2020 www.eaton.com
Figure 3.7 Master MAIN – Measurements
Measurements
The Master MAIN supports measurement of:
•
Current
•
Voltage / Frequency
•
Power (Active, Reactive and Apparent)
The power has no impact on the arc detection. The purpose of power calculation is to
show power values on the display unit. List of calculated power values:
•
Active Power P [kW]
•
Reactive Power Q [kvar]
•
Apparent Power S [kVA]
•
cos
𝜑
Current
Voltage / Frequency
Power
The main purpose of 3-phase current measurement is to use current criteria in the arc
detection. There is current criteria which could be used in the arc detection:
•
I>> (di/dt)
The display unit will show the measured current values:
•
IL1
•
IL2
•
IL3
The voltage and frequency have not an impact on the arc detection. The purpose of
3-phase voltage measurement is to show voltage levels on the display unit and enable
power calculation. List of measured values:
•
U12
•
U23
•
U31
Proof 1 — October 29, 2020 3:00 PM