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1BPROTECTION FUNCTIONS
PROTECTION, CONTROL AND METERING FUNCTIONS
2.1.9. NEUTRAL OVERVOLTAGE PROTECTION
2.1.9.1. GENERAL DESCRIPTION (59N)
The protection element is activated when the voltage level 3Vo is above the
configured value for a period of time equal to or longer than the time threshold set by
the user.
Figure 2-23 shows the logical diagram for the neutral overvoltage function 59N
Figure 2-23 Neutral overvoltage function 59N
2.1.9.2. SETTING RANGES (6 GROUPS)
The settings for these functions are shown in the Table 2-13
Setting
Minimum
Maximum
Step
Notes
Enable
YES/NO
Pickup (V)
0,8
10,5
0,001
For Vn = 6,5V
1
300
0,001
For Vn = 120 V
Definite time (s)
0
600
0,01
Table 2-13 Setting ranges of neutral overvoltage protection
3V
0
Pickup
blk59N
blkAnyProt
r59NTrip
r59NPkup
Def. Time
0
+
-
blkAnyG
blkAnyN
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...