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8BPROTECTION FUNCTIONS OVERVIEW
INTRODUCTION
ANSI/IEEE
Code
Function
Ranges
Increment
Accuracy
Breaker Failure
Phase Pickup Current
0.02 a 20 A (In = 1 A)
0.001 A
10mA o ± 0.5%
0.1 a 100 A (In = 5 A)
0.001 A
15mA o ± 0.5%
Ground Pickup
Current
0.02 a 20 A (In = 1 A)
0.001 A
10mA o ± 0.5%
0.1 a 100 A (In = 5 A)
0.001 A
15mA o ± 0.5%
Closing Const. Time
0 a 60 s
0.01 s
± half cycle
ANSI/IEEE
Code
Function
Ranges
Increment
Accuracy
Time Overcurrent
Phase/Ground Pickup
0.02 a 20 A (In = 1 A)
0.1 a 100 A (In = 5 A)
0.001 A
10mA o ± 0.5%
15mA o ± 0.5%
Neutral Pickup
0.005 a 10 A (In = 1 A)
0.025 a 50 A (In = 5 A)
0.001 A
10mA o ± 0.5%
ANSI/IEEE
Code
Function
Ranges
Increment
Accuracy
VT Fuse Loss Detection (60FL)
Negative Sequence
Voltage
0.03 a 12 V (Vn = 6.5 V)
0.4 a 300 V (Vn = 115 V)
0.01 V
20 mV o ± 0.5%
300 mV o ± 0.5%
Negative Sequence
Current
0.0 a 20 A (In = 1 A)
0.0 a 100 A (In = 5 A)
0.001 A
10mA o ± 0.5%
15mA o ± 0.5%
60
FL
51
50
BF
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...