Schneider Electric 4000 manual Energy Readings

Chapter 4—Metering Capabilities									63230-300-212
Energy Readings										April 2001
ENERGY READINGS							The circuit monitor calculates and stores accumulated energy values for real
							and reactive energy (kWh and kVARh) both into and out of the load, and also
							accumulates absolute apparent energy. Table 4–4lists the energy values the
							circuit monitor can accumulate.
	Table 4–4: Energy Readings
	Energy Reading, 3-Phase							Reportable Range		Shown on the Display
	Accumulated Energy
		Real (Signed/Absolute)						-9,999,999,999,999,999 to
								9,999,999,999,999,999 Wh		0000.000 kWh to 99,999.99 MWh and
		Reactive (Signed/Absolute)						-9,999,999,999,999,999 to		0000.000 to 99,999.99 MVARh
								9,999,999,999,999,999 VARh
		Real (In)						0 to 9,999,999,999,999,999 Wh
		Real (Out)						0 to 9,999,999,999,999,999 Wh
		Reactive (In)						0 to 9,999,999,999,999,999 VARh		0000.000 kWh to 99,999.99 MWh and
		Reactive (Out)						0 to 9,999,999,999,999,999 VARh		0000.000 to 99,999.99 MVARh
		Apparent						0 to 9,999,999,999,999,999 VAh
	Accumulated Energy, Conditional
		Real (In)						0 to 9,999,999,999,999,999 Wh
		Real (Out)						0 to 9,999,999,999,999,999 Wh		Not shown on the display. Readings
										are obtained only through the
		Reactive (In)						0 to 9,999,999,999,999,999 VARh
										communications link.
		Reactive (Out)						0 to 9,999,999,999,999,999 VARh
		Apparent						0 to 9,999,999,999,999,999 VAh
	Accumulated Energy, Incremental
		Real (In)						0 to 999,999,999,999 Wh
		Real (Out)						0 to 999,999,999,999 Wh		0000.000 kWh to 99,999.99 MWh and
		Reactive (In)						0 to 999,999,999,999 VARh		0000.000 to 99,999.99 MVARh
		Reactive (Out)						0 to 999,999,999,999 VARh
		Apparent						0 to 999,999,999,999 VAh
	Reactive Energy
		Quadrant 1						0 to 999,999,999,999 VARh		Not shown on the display. Readings
		Quadrant 2						0 to 999,999,999,999 VARh		are obtained only through the
		Quadrant 3						0 to 999,999,999,999 VARh		communications link.
		Quadrant 4 ￿						0 to 999,999,999,999 VARh
		Values can be displayed on the screen by creating custom quantities and custom displays.
			￿				The circuit monitor can accumulate the energy values shown in Table 4–4in
							one of two modes: signed or unsigned (absolute). In signed mode, the circuit
				￿	￿		monitor considers the direction of power flow, allowing the magnitude of
							accumulated energy to increase and decrease. In unsigned mode, the circuit
	￿		￿			￿	monitor accumulates energy as a positive value, regardless of the direction
							of power flow. In other words, the energy value increases, even during
							reverse power flow. The default accumulation mode is unsigned.
							You can view accumulated energy from the display. The resolution of the
							energy value will automatically change through the range of 000.000 kWh to
							000,000 MWh (000.000 to 000,000 MVARh), or it can be fixed.
							See Appendix A—Abbreviated Register Listing on page 127 for the
							contents of the registers.
64									© 2001 Schneider Electric All Rights Reserved