Brultech Greeneye Monitor Instrukcja Użytkownika Pobierz pdf (Strona 13)

Channel Option Menu

 Page 12

how the CT was installed and the CT leads polarity. The PT (wall transformer) polarity will also affect

this. It boils down to a 50-50 chance of the polarity being proper.

If the displayed polarity is opposite of what it should be then this function is used to toggle the polarity

to its opposite state. Rather than altering the CT installation or swapping the CT leads, it is much safer

and simpler to correct an improper polarity via this setting. The polarity is displayed when viewing

power under the “Watt” menu.

Single Channel Polarity

Figure 7

This function is used to change the polarity of a NET enabled channel if required.

This function is only effective if NET metering is enabled for a given channel. It is used in cases where

the power direction (polarity) is improperly displayed. For example, if channel 1 represents the “main

panel” and the power value displays “negative” when consuming power and “positive” when generating

more power than is being consumed, toggling the channel 1 polarity will change these polarities to

reflect positive for consumed energy and negative for generated.

Effect of the PT on Polarity

It is important to understand that the polarity of the PT will change the polarity of all 32 channels. For

instance, if the wall transformer PT is unplugged turned 180 degrees and re-plugged such that the 120V

receptacle blades are reversed, all channel polarities will change. See Figure 8. This is only an issue for

NET metering enabled channels where polarized values are used.

Figure 8

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Brultech Greeneye Monitor Instrukcja Użytkownika Strona 13