S&C Vista, Programming

Page: 58 / 62

58 S&C Instruction Sheet 681-530
Overcurrent Control Settings
Table 14. Vista Speed - E Speed Curves
Time Overcurrent Phase Protection
Inverse Segment E
Continuous Current
600 900/1200
Ampere Rating
7E, 10E, 13E, 15E, 20E, 25E, 30E,
40E, 50E, 65E, 80E, 100E, 125E,
150E, 175E, 200E, 250E, 300E,
400E
15E, 20E, 25E, 30E, 40E, 50E, 65E,
80E, 100E, 125E, 150E, 175E, 200E,
250E, 300E, 400E
Short Circuit, RMS Sym. Short Circuit, RMS Sym.
12.5 and 16 kA 25 kA 12.5 and 16 kA 25 kA
Low-Current Cutoff,
A ●
14 to 12500 in
steps of 0 .01
14 to 13200 in
steps of 0 .01
28 to 12500 in
steps of 0 .01
28 to 13200 in steps
of 0 .01
Time Multiplier FIXED = 1
Time Adder, s N/A
Reset Type TIMED
Reset Time, s
0 to 1000 in steps of 0 .001
●
Low-Current Cutoff must be equal to or greater than the minimum trip current of the selected curve .
Table 15. Vista Speed - K Speed Curves
Time Overcurrent Phase Protection
Inverse Segment
K
Continuous Current
600 900/1200
Ampere Rating
8K, 10K, 12K, 15K, 20K, 25K, 30K,
40K, 50K, 65K, 80K, 100K, 125K,
150K, 175K, 200K
15K, 20K, 25K, 30K, 40K, 50K, 65K,
80K, 100K, 125K, 150K, 175K, 200K
Short Circuit, RMS Sym. Short Circuit, RMS Sym.
12.5 and 16 kA 25 kA 12.5 and 16 kA 25 kA
Low-Current Cutoff,
A
●
14 to 12500 in
steps of 0 .01
14 to 13200 in
steps of 0 .01
28 to 12500 in
steps of 0 .01
28 to 13200 in steps
of 0 .01
Time Multiplier FIXED = 1
Time Adder, s
N/A
Reset Type
TIMED
Reset Time, s
0 to 1000 in steps of 0 .001
●
Low-Current Cutoff must be equal to or greater than the minimum trip current of the selected curve .
Table 16. Vista Speed - T Speed Curves
Time Overcurrent Phase Protection
Inverse Segment
T
Continuous Current
600 900/1200
Ampere Rating
8T, 10T, 12T, 15T, 20T, 25T, 30T, 40T,
50T, 65T, 80T, 100T, 140T, 200T
15T, 20T, 25T, 30T, 40T, 50T, 65T, 80T,
100T, 140T, 200T
Short Circuit, RMS Sym. Short Circuit, RMS Sym.
12.5 and 16 kA 25 kA 12.5 and 16 kA 25 kA
Low-Current Cutoff,
A
●
14 to 12500 in
steps of 0 .01
14 to 13200 in
steps of 0 .01
28 to 12500 in
steps of 0 .01
28 to 13200 in steps
of 0 .01
Time Multiplier FIXED = 1
Time Adder, s N/A
Reset Type TIMED
Reset Time, s 0 to 1000 in steps of 0 .001
● Low-Current Cutoff must be equal to or greater than the minimum trip current of the selected curve .