Technical information

2 – CONTROL CARD
10
Table 1 – CT Ratios and Burden Switch Settings
CT Ratio Minimum
FLA (A rms)
Maximum
FLA (A rms)
Switch 6
Position 1
Switch 6
Position 2
2 3 Off Off
3 4 Off On
4 9 On Off
72
(4 wraps
288:1)
9 16 On On
3 4 Off Off
4 5 Off On
5 12 On Off
96
(3 wraps
288:1)
12 21 On On
4 7 Off Off
7 8 Off On
8 18 On Off
144
(2 wraps
288:1)
18 32 On On
8 14 Off Off
14 16 Off On
16 36 On Off
288
36 64 On On
24 42 Off Off
42 50 Off On
50 108 On Off
864
108 190 On On
37 64 Off Off
64 76 Off On
76 165 On Off
1320
(2 wraps
2640)
165 290 On On
73 128 Off Off
128 151 Off On
151 330 On Off
2640
330 590 On On
73 140 Off Off
140 165 Off On
165 361 On Off
2880
361 640 On On
105 190 Off Off
190 225 Off On
225 490 On Off
3900
490 870 On On
160 280 Off Off
280 330 Off On
330 720 On Off
5760
720 1280 On On
223 390 Off Off
390 465 Off On
465 1000 On Off
8000
1000 1800 On On
400 700 Off Off
700 840 Off On
840 1800 On Off
14400
Mult.
CT-CT
Combinations
1800 3200 On On
800 1400 Off Off
1400 1680 Off On
1680 3600 On Off
28800
Mult.
CT-CT
Combinations
3600 6400 On On