5BMETERING FUNCTIONS
PROTECTION, CONTROL AND METERING FUNCTIONS
2.5.2.1.2. ACCUMULATORS
Accumulators represent the consumed energy and equal the area under the curve
of the correspondent parameter. This group includes the 7 parameters shown in
Table 2-33
Parameter
Symbol
Three-phase active power (positive)
Whp
Three-phase active power (negative)
Whn
Three-phase reactive power in I quadrant
VArh I
Three-phase reactive power in II quadrant
VArh II
Three-phase reactive power in III quadrant
VArh III
Three-phase reactive power in IV quadrant
VArh IV
Three-phase apparent power
VAh
Table 2-33 Accumulators group
The convention used for the power in the protection is shown in Figure 2-66,
where S = P + jQ, S being the apparent power (VA), P the active power (W) and Q
the reactive power (VAr).
Figure 2-66 Power plane
Summary of Contents for smART P500
Page 1: ...Instruction Manual Multifunction Protection Relay smART P500...
Page 23: ...2BTABLES INDEX THIS PAGE HAS BEEN LEFT BLANK INTENTIONALLY...
Page 39: ...5BHARDWARE FEATURES INTRODUCTION Figure 1 9 Wye Wye Connection measured neutral...
Page 40: ...5BHARDWARE FEATURES INTRODUCTION Figure 1 10 Wye Wye Connection sensitive neutral...
Page 41: ...5BHARDWARE FEATURES INTRODUCTION Figure 1 11 Open Delta Connection measured neutral...
Page 42: ...5BHARDWARE FEATURES INTRODUCTION Figure 1 12 Open Delta Connection sensitive neutral...
Page 511: ...2BANSI CURVES 0BCURVES FOR TIME CHARACTERISTICS Figure I 6 Moderately ANSI curve...
Page 513: ...2BANSI CURVES 0BCURVES FOR TIME CHARACTERISTICS Figure I 7 Very inverse ANSI curve...
Page 515: ...2BANSI CURVES 0BCURVES FOR TIME CHARACTERISTICS Figure I 8 Extremely inverse ANSI curve...
Page 532: ...4BRECLOSER CURVES 0BCURVES FOR TIME CHARACTERISTICS Figure I 14 Recloser Curves 101 119...
Page 535: ...4BRECLOSER CURVES 0BCURVES FOR TIME CHARACTERISTICS Figure I 15 Recloser Curves 120 142...
Page 538: ...4BRECLOSER CURVES 0BCURVES FOR TIME CHARACTERISTICS Figure I 16 Recloser Curves 151 202...
