K = cooling factor units = seconds – GE Industrial Solutions EntelliPro ES User Manual
Page 123
CHAPTER 3: MOTOR PR OTECTION
EP OS MOTOR MANAGEMENT SY STEM – INSTRUCTION MANUAL
3.11
M otor
Heating
Class 25
K = 1
Class 25
K = 2
Class 25
K = 3
Class 25
K = 4
Class 25
K = 5
Class 25
K = 6
Class 25
K = 7
Class 25
K = 8
Class 25
K = 9
Class 25
K = 10
Class 25
K = 11
Class 25
K = 12
Class 25
K = 13
Class 25
K = 14
Class 25
K = 15
100
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
90
91.8
183.6
275.4
367.2
459
550.8
642.6
734.4
826.2
918
1009.8
1009.8
1009.8
1285.2
1377
80
193.8
387.6
581.4
775.2
969
1162.8
1356.6
1550.4
1744.2
1938
2131.8
2131.8
2131.8
2713.2
2907
70
310.25
620.5
930.75
1241
1551.25
1861.5
2171.75
2482
2792.25
3102.5
3412.75
3412.75
3412.75
4343.5
4653.75
60
444.55
889.1
1333.65
1778.2
2222.75
2667.3
3111.85
3556.4
4000.95
4445.5
4890.05
4890.05
4890.05
6223.7
6668.25
50
602.65
1205.3
1807.95
2410.6
3013.25
3615.9
4218.55
4821.2
5423.85
6026.5
6629.15
6629.15
6629.15
8437.1
9039.75
40
797.3
1594.6
2391.9
3189.2
3986.5
4783.8
5581.1
6378.4
7175.7
7973
8770.3
8770.3
8770.3
11162.2
11959.5
30
1047.2
2094.4
3141.6
4188.8
5236
6283.2
7330.4
8377.6
9424.8
10472
11519.2
11519.2
11519.2
14660.8
15708
20
1399.95
2799.9
4199.85
5599.8
6999.75
8399.7
9799.65
11199.6
12599.55 13999.5 15399.45 15399.45 15399.45
19599.3
20999.25
10
2002.6
4005.2
6007.8
8010.4
10013
12015.6
14018.2
16020.8
18023.4
20026
22028.6
22028.6
22028.6
28036.4
30039
Figure 3-7: Thermal cooling model when trip curve is set to IEC class 25.
K = Cooling Factor
Units = seconds