Table 4-6 Harmonic Measurements
4.3.3 Unbalance
The PMC-D726M provides Voltage and Current Unbalance measurements. The calculation method of
Voltage and Current Unbalances are listed below:
Voltage Unbalance =
where
V1, V2 are the Positive and Negative Sequence Components for Voltage, respectively.
and
I1, I2 are the Positive and Negative Sequence Components for Current, respectively.
4.4 Setpoints
The PMC-D726M comes standard with 6 user programmable Setpoints which provide extensive control
by allowing a user to initiate an action in response to a specific condition. Typical Setpoint applications
include alarming, fault detection and power quality monitoring. This feature is available in Firmware
V1.00.04 (LED)/V1.01.04 (LCD) or later.
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