S&C Vista SD - Page 50

50 S&C Instruction Sheet 695-535
Overcurrent Control Settings
Table 14. Vista Speed - E Speed Curves
Time Overcurrent Phase Protection
Inverse Segment
E
Ampere Rating
7E, 10E, 13E, 15E, 20E, 25E, 30E, 40E, 50E, 65E, 80E, 100E, 125E, 150E,
175E, 200E, 250E, 300E, 400E
Low-Current Cutoff, A●
14 to 12500 in steps of 0.01
Time Multiplier FIXED = 1
Time Adder, s N/A
Reset Time Parameters
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
Ampere Rating
8K, 10K, 12K, 15K, 20K, 25K, 30K, 40K, 50K, 65K, 80K, 100K, 125K,
150K, 175K, 200K
Low-Current Cutoff, A●
14 to 12500 in steps of 0.01
Time Multiplier FIXED = 1
Time Adder, s N/A
Reset Time Parameters
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
Ampere Rating 8T, 10T, 12T, 15T, 20T, 25T, 30T, 40T, 50T, 65T, 80T, 100T, 140T, 200T
Low-Current Cutoff, A●
14 to 12500 in steps of 0.01
Time Multiplier FIXED = 1
Time Adder, s N/A
Reset Time Parameters
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.