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5BMETERING FUNCTIONS
PROTECTION, CONTROL AND METERING FUNCTIONS
Demand at point 4 (IOI4) = (100 kW + 100 kW + 200 kW)/3 = 133.3 kW
Demand at point 5 (IOI5) = (100 kW + 200 kW + 150 kW)/3 = 175 kW
Figure 2-63 Rolling integration
2.5.1.2. THERMAL DEMAND
The thermal demand method approximates the demand by emulating the thermal
effect of a mechanical device. Figure 2-64 shows this method.
Figure 2-64 Thermal Demand Meter
Unlike the direct and rolling peak demand which immediately follow any changes in
the load the thermal demand presents a slow response to those changes. For this
reason the value of the thermal demand at any moment depends not only on the
measured load at this moment but also on the previous values of it so it can be said
to represent an average of such values.
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...