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2BOTHER FUNCTIONS
PROTECTION, CONTROL AND METERING FUNCTIONS
The sectionalizer works when previously set counters are completed. Two conditions
must be satisfied: Flowing of an overcurrent equal or higher than minimum action
current, and the interruption of this current. When those conditions are satisfied, the
sectionalizer opens its contacts with the line de-energized. This permits provide
automatic sectionable points.
If activated, the protection functions are inhibited in the relay. The Figure 2-51 shows the
logical diagram for the Sectionalizer
Also included in the logic of sectionalizer, the inrush current flows inherent in
establishing action temporarily higher due to the cold load condition.
Figure 2-51 Sectionalizer Function
Num. trips
Num. Programmed
trips
blkSect
+
-
rSectTrip
+
-
-
+
Time elapsed
Time
Programmed
-
+
-
+
-
+
I
A
I
B
I
C
I
N
Zero nominal currents
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...