GE 339

6–38 339 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL
S3 PROTECTION CHAPTER 6: SETPOINTS
Table 6-1: Standard overload curve trip times (in seconds)
MOTOR
CURRE
NT
(× FLA)
STANDARD CURVE MULTIPLIERS
× 1 × 2 × 3 × 4 × 5 × 6 × 7 × 8 × 9 × 10 × 11 × 12 × 13 × 14 × 15
1.01 435
3.6
870
7.2
130
61
174
14
217
68
261
22
304
75
348
29
391
83
435
36
478
90
522
43
565
97
609
51
653
04
1.05 853.
71
170
7.4
256
1.1
341
4.9
426
8.6
512
2.3
597
6.0
682
9.7
768
3.4
853
7.1
939
0.8
102
45
110
98
119
52
128
06
1.10 416.
68
833.
36
125
0.0
166
6.7
208
3.4
250
0.1
291
6.8
333
3.5
375
0.1
416
6.8
458
3.5
500
0.2
541
6.9
583
3.6
625
0.2
1.20 198.
86
397.
72
596.
58
795.
44
994.
30
119
3.2
139
2.0
159
0.9
178
9.7
198
8.6
218
7.5
238
6.3
258
5.2
278
4.1
298
2.9
1.30 126.
80
253.
61
380.
41
507.
22
634.
02
760.
82
887.
63
101
4.4
114
1.2
126
8.0
139
4.8
152
1.6
164
8.5
177
5.3
190
2.1
1.40 91.1
4
182.
27
273.
41
364.
55
455.
68
546.
82
637.
96
729.
09
820.
23
911.
37
100
2.5
109
3.6
118
4.8
127
5.9
136
7.0
1.50 69.9
9
139.
98
209.
97
279.
96
349.
95
419.
94
489.
93
559.
92
629.
91
699.
90
769.
89
839.
88
909.
87
979.
86
104
9.9
1.75 42.4
1
84.8
3
127.
24
169.
66
212.
07
254.
49
296.
90
339.
32
381.
73
424.
15
466.
56
508.
98
551.
39
593.
81
636.
22
2.00 29.1
6
58.3
2
87.4
7
116.
63
145.
79
174.
95
204.
11
233.
26
262.
42
291.
58
320.
74
349.
90
379.
05
408.
21
437.
37
2.25 21.5
3
43.0
6
64.5
9
86.1
2
107.
65
129.
18
150.
72
172.
25
193.
78
215.
31
236.
84
258.
37
279.
90
301.
43
322.
96
2.50 16.6
6
33.3
2
49.9
8
66.6
4
83.3
0
99.9
6
116.
62
133.
28
149.
94
166.
60
183.
26
199.
92
216.
58
233.
24
249.
90
2.75 13.3
3
26.6
5
39.9
8
53.3
1
66.6
4
79.9
6
93.2
9
106.
62
119.
95
133.
27
146.
60
159.
93
173.
25
186.
58
199.
91
3.00 10.9
3
21.8
6
32.8
0
43.7
3
54.6
6
65.5
9
76.5
2
87.4
6
98.3
9
109.
32
120.
25
131.
19
142.
12
153.
05
163.
98
3.25 9.15 18.2
9
27.4
4
36.5
8
45.7
3
54.8
7
64.0
2
73.1
6
82.3
1
91.4
6
100.
60
109.
75
118.
89
128.
04
137.
18
3.50 7.77 15.5
5
23.3
2
31.0
9
38.8
7
46.6
4
54.4
1
62.1
9
69.9
6
77.7
3
85.5
1
93.2
8
101.
05
108.
83
116.
60
3.75 6.69 13.3
9
20.0
8
26.7
8
33.4
7
40.1
7
46.8
6
53.5
6
60.2
5
66.9
5
73.6
4
80.3
4
87.0
3
93.7
3
100.
42
4.00 5.83 11.6
6
17.4
9
23.3
2
29.1
5
34.9
8
40.8
1
46.6
4
52.4
7
58.3
0
64.1
3
69.9
6
75.7
9
81.6
2
87.4
5
4.25 5.12 10.2
5
15.3
7
20.5
0
25.6
2
30.7
5
35.8
7
41.0
0
46.1
2
51.2
5
56.3
7
61.5
0
66.6
2
71.7
5
76.8
7
4.50 4.54 9.08 13.6
3
18.1
7
22.7
1
27.2
5
31.8
0
36.3
4
40.8
8
45.4
2
49.9
7
54.5
1
59.0
5
63.5
9
68.1
4
4.75 4.06 8.11 12.1
7
16.2
2
20.2
8
24.3
3
28.3
9
32.4
4
36.5
0
40.5
5
44.6
1
48.6
6
52.7
2
56.7
7
60.8
3
5.00 3.64 7.29 10.9
3
14.5
7
18.2
2
21.8
6
25.5
0
29.1
5
32.7
9
36.4
3
40.0
8
43.7
2
47.3
6
51.0
1
54.6
5
5.50 2.99 5.98 8.97 11.9
6
14.9
5
17.9
4
20.9
3
23.9
1
26.9
0
29.8
9
32.8
8
35.8
7
38.8
6
41.8
5
44.8
4
6.00 2.50 5.00 7.49 9.99 12.4
9
14.9
9
17.4
9
19.9
9
22.4
8
24.9
8
27.4
8
29.9
8
32.4
8
34.9
7
37.4
7
6.50 2.12 4.24 6.36 8.48 10.6
0
12.7
2
14.8
4
16.9
6
19.0
8
21.2
0
23.3
2
25.4
4
27.5
5
29.6
7
31.7
9
7.00 1.82 3.64 5.46 7.29 9.11 10.9
3
12.7
5
14.5
7
16.3
9
18.2
1
20.0
4
21.8
6
23.6
8
25.5
0
27.3
2
7.50 1.58 3.16 4.75 6.33 7.91 9.49 11.0
8
12.6
6
14.2
4
15.8
2
17.4
1
18.9
9
20.5
7
22.1
5
23.7
4
8.00 1.39 2.78 4.16 5.55 6.94 8.33 9.71 11.1
0
12.4
9
13.8
8
15.2
7
16.6
5
18.0
4
19.4
3
20.8
2