Schneider Electric 4000 manual Convention, refer to Advanced Meter Setup on, Reactive Power, Real

63230-300-212	Chapter 4—Metering Capabilities
April 2001	Min/Max Values for Real-time Readings
VAR Sign Conventions	The circuit monitor can be set to one of two VAR sign conventions, the
	standard IEEE or the ALT (CM1). Circuit monitors manufactured before
	March 2000 default to the ALT VAR sign convention.The Series 4000 Circuit
	Monitor defaults to the IEEE VAR sign convention. Figure 4–2illustrates the
	VAR sign convention defined by IEEE and the default used by previous model
	circuit monitors (CM1). For instructions on changing the VAR sign
	convention, refer to “Advanced Meter Setup” on page 34.

Reactive

Power In

	Quadrant	Quadrant
2		1
watts negative (–)		watts positive (+)
vars negative (–)		vars negative (–)
power factor leading (+)		power factor lagging (–)
	Reverse Power Flow	Normal Power Flow	Real
			Power
			In
watts negative (–)		watts postive (+)
vars positive (+)		vars positive (+)
power factor lagging (–)		power factor leading (+)
	Quadrant	Quadrant
3		4

	Reactive
	Power In
	Quadrant	Quadrant
2		1
watts negative (–)		watts positive (+)
vars positive (+)		vars positive (+)
power factor leading (+)		power factor lagging (–)
	Reverse Power Flow	Normal Power Flow	Real
			Power
watts negative (–)		watts positive (+)	In
vars negative (–)		vars negative (–)
power factor lagging (–)		power factor leading (+)
	Quadrant	Quadrant
3		4

ALT (CM1) VAR Sign Convention	IEEE/IEC VAR Sign Convention
	(Series 4000 Circuit Monitor Default)

Figure 4–2: Reactive Power—VAR sign convention

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