K = cooling factor units = seconds – GE Industrial Solutions EntelliPro ES User Manual
Page 126
CHAPTER 3: MOTOR PR OTECTION
3.14
EP OS MOTOR MANAGEMENT SYSTEM – INSTRUCTION MANUAL
M otor
Heating
Class 40
K = 1
Class 40
K = 2
Class 40
K = 3
Class 40
K = 4
Class 40
K = 5
Class 40
K = 6
Class 40
K = 7
Class 40
K = 8
Class 40
K = 9
Class 40
K = 10
Class 40
K = 11
Class 40
K = 12
Class 40
K = 13
Class 40
K = 14
Class 40
K = 15
100
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
90
145.8
291.6
437.4
583.2
729
874.8
1020.6
1166.4
1312.2
1458
1603.8
1603.8
1603.8
2041.2
2187
80
307.8
615.6
923.4
1231.2
1539
1846.8
2154.6
2462.4
2770.2
3078
3385.8
3385.8
3385.8
4309.2
4617
70
492.75
985.5
1478.25
1971
2463.75
2956.5
3449.25
3942
4434.75
4927.5
5420.25
5420.25
5420.25
6898.5
7391.25
60
706.05
1412.1
2118.15
2824.2
3530.25
4236.3
4942.35
5648.4
6354.45
7060.5
7766.55
7766.55
7766.55
9884.7
10590.75
50
957.15
1914.3
2871.45
3828.6
4785.75
5742.9
6700.05
7657.2
8614.35
9571.5
10528.65 10528.65 10528.65
13400.1
14357.25
40
1266.3
2532.6
3798.9
5065.2
6331.5
7597.8
8864.1
10130.4
11396.7
12663
13929.3
13929.3
13929.3
17728.2
18994.5
30
1663.2
3326.4
4989.6
6652.8
8316
9979.2
11642.4
13305.6
14968.8
16632
18295.2
18295.2
18295.2
23284.8
24948
20
2223.45
4446.9
6670.35
8893.8
11117.25
13340.7
15564.15
17787.6
20011.05 22234.5 24457.95 24457.95 24457.95
31128.3
33351.75
10
3180.6
6361.2
9541.8
12722.4
15903
19083.6
22264.2
25444.8
28625.4
31806
34986.6
34986.6
34986.6
44528.4
47709
Figure 3-10: Thermal cooling model when trip curve is set to IEC class 40.
K = Cooling Factor
Units = seconds