K = cooling factor units = seconds – GE Industrial Solutions EntelliPro ES User Manual
Page 120
CHAPTER 3: MOTOR PR OTECTION
3.8
EP OS MOTOR MANAGEMENT SYSTEM – INSTRUCTION MANUAL
M otor
Heating
Class 10
K = 1
Class 10
K = 2
Class 10
K = 3
Class 10
K = 4
Class 10
K = 5
Class 10
K = 6
Class 10
K = 7
Class 10
K = 8
Class 10
K = 9
Class 10
K = 10
Class 10
K = 11
Class 10
K = 12
Class 10
K = 13
Class 10
K = 14
Class 10
K = 15
100
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
90
37.8
75.6
113.4
151.2
189
226.8
264.6
302.4
340.2
378
415.8
415.8
415.8
529.2
567
80
79.8
159.6
239.4
319.2
399
478.8
558.6
638.4
718.2
798
877.8
877.8
877.8
1117.2
1197
70
127.75
255.5
383.25
511
638.75
766.5
894.25
1022
1149.75
1277.5
1405.25
1405.25
1405.25
1788.5
1916.25
60
183.05
366.1
549.15
732.2
915.25
1098.3
1281.35
1464.4
1647.45
1830.5
2013.55
2013.55
2013.55
2562.7
2745.75
50
248.15
496.3
744.45
992.6
1240.75
1488.9
1737.05
1985.2
2233.35
2481.5
2729.65
2729.65
2729.65
3474.1
3722.25
40
328.3
656.6
984.9
1313.2
1641.5
1969.8
2298.1
2626.4
2954.7
3283
3611.3
3611.3
3611.3
4596.2
4924.5
30
431.2
862.4
1293.6
1724.8
2156
2587.2
3018.4
3449.6
3880.8
4312
4743.2
4743.2
4743.2
6036.8
6468
20
576.45
1152.9
1729.35
2305.8
2882.25
3458.7
4035.15
4611.6
5188.05
5764.5
6340.95
6340.95
6340.95
8070.3
8646.75
10
824.6
1649.2
2473.8
3298.4
4123
4947.6
5772.2
6596.8
7421.4
8246
9070.6
9070.6
9070.6
11544.4
12369
Figure 3-4: Thermal cooling model when trip curve is set to IEC class 10.
K = Cooling Factor
Units = seconds