Chapter 5 Measurements
Accura 2300S/2350-1P3FSC User Guide
Page 152
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Leakage Current Measurement
Leakage current measurement is supported by installing an external ZCT(voltage-type) and connecting
the ZCT output voltage to the ZCT input terminal of Accura 2350 module.
Leakage current can be measured in two ways by setting the measurement mode to
「
Half-cycle RMS
」
and
「
1-cycle Fundamental RMS
」
.
Half-cycle RMS Measurement (Default)
It refers to measuring the RMS value over one half cycle with a half cycle window. The device provides
the maximum value among the RMS values (60 values @ 60 Hz) as the measured leakage current value
every 0.5 seconds.
1-cycle Fundamental RMS Measurement
It refers to measuring the RMS value of fundamental components over one cycle with one cycle window.
The device provides the maximum value among the RMS values (30 values @ 60 Hz) as the measured
leakage current value every 0.5 seconds.
Residual Voltage Measurement
The residual voltage(Vrsd) is the RMS value calculated by summing up sampled 3-phase voltages. It
includes the residual voltage for harmonic components.
𝑉
𝑟𝑠𝑑
= ∑ 𝑉
𝑎,𝑏,𝑐
Summary of Contents for ACCURA 2300S
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