K = cooling factor units = seconds – GE Industrial Solutions EntelliPro ES User Manual

Page 121

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CHAPTER 3: MOTOR PR OTECTION

EP OS MOTOR MANAGEMENT SY STEM – INSTRUCTION MANUAL

3.9

 

 

 

 

M otor

Heating

Class 15

K = 1

Class 15

K = 2

Class 15

K = 3

Class 15

K = 4

Class 15

K = 5

Class 15

K = 6

Class 15

K = 7

Class 15

K = 8

Class 15

K = 9

Class 15

K = 10

Class 15

K = 11

Class 15

K = 12

Class 15

K = 13

Class 15

K = 14

Class 15

K = 15

100

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

90

54

108

162

216

270

324

378

432

486

540

594

594

594

756

810

80

114

228

342

456

570

684

798

912

1026

1140

1254

1254

1254

1596

1710

70

182.5

365

547.5

730

912.5

1095

1277.5

1460

1642.5

1825

2007.5

2007.5

2007.5

2555

2737.5

60

261.5

523

784.5

1046

1307.5

1569

1830.5

2092

2353.5

2615

2876.5

2876.5

2876.5

3661

3922.5

50

354.5

709

1063.5

1418

1772.5

2127

2481.5

2836

3190.5

3545

3899.5

3899.5

3899.5

4963

5317.5

40

469

938

1407

1876

2345

2814

3283

3752

4221

4690

5159

5159

5159

6566

7035

30

616

1232

1848

2464

3080

3696

4312

4928

5544

6160

6776

6776

6776

8624

9240

20

823.5

1647

2470.5

3294

4117.5

4941

5764.5

6588

7411.5

8235

9058.5

9058.5

9058.5

11529

12352.5

10

1178

2356

3534

4712

5890

7068

8246

9424

10602

11780

12958

12958

12958

16492

17670

 

Figure 3-5: Thermal cooling model when trip curve is set to IEC class 15.

 

K = Cooling Factor

Units = seconds

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