TABLE I. Electrical ratings Continued. 1/
Secondary
Secondary dc
Turns ratio
impedance
Power (watts)
resistance
primary:secondary
Primary
Primary
Circuit
(ohms)
(ohms)
Primary
unbalanced
dc
diagram
Dash
impedance
1 kHz
400
150
dc current
resistance
configu-
no.
Series
Parallel
Series
Parallel
Secondary
Secondary
(ohms)
and
Hz
Hz
(mA)
(ohms)
ration
connec-
connec-
connec-
connec-
series
parallel
higher
And
And
tion
tion
tion
tion
connection
connection
higher
higher
036
500 ct
500 ct
125
1.0
.11
.75
4.5
43
60
15
1:1
2:1
A
037
500 ct
500 ct
---
1.0
.75
.11
4.5
43
60
---
1:1
---
B 2/
038
500 ct
600 ct
150
1.0
.75
.11
4.5
43
66
17
1:1.1
1.83:1
A
039
600 ct
12.8 ct
3.2
.75
1.0
.11
4.0
68
1.75
.44
6.85:1
13.7:1
"
040
600 ct
30 ct
7.5
.75
1.0
.11
4.0
60
3.7
.93
4.47:1
8.94:1
"
041
600 ct
48 ct
12
1.0
.75
.11
4.0
60
5.9
1.5
3.54:1
7.07:1
"
042
600 ct
200 ct
50
1.0
.75
.11
4.0
60
25
6.3
1.73:1
3.46:1
"
043
600 ct
600 ct
150
1.0
.75
.11
4.0
60
66
17
1:1
2:1
"
B 2/
044
600 ct
600 ct
---
1.0
.75
.11
4.0
60
68
---
1:1
---
B 2/
045
600 ct
900 ct
---
1.0
.75
.11
4.0
60
104
---
1.1:22
---
046
600 ct
1200 ct
300
1.0
.75
.11
4.0
60
116
29
1:1.41
1.41:1
A
047
640 ct
12.8 ct
3.2
1.0
.75
.11
4.0
69
1.75
.44
7.07:1
14.14:1
"
048
700 ct
100 ct
25
1.0
.75
.11
4.0
62
10.6
2.7
2.65:1
5.29:1
"
049
800 ct
12.8 ct
3.2
1.0
.75
.11
3.5
78
1.75
.44
7.91:1
15.0:1
"
050
800 ct
48 ct
12
1.0
.75
.11
3.5
74
6
1.5
4.08:1
8.16:1
"
051
800 ct
800 ct
200
1.0
.75
.11
3.5
74
102
26
1:1
2:1
"
052
900 ct
600 ct
150
1.0
.75
.11
3.0
90
66
17
1.23:1
2.45:1
"
B 2/
053
900 ct
900 ct
---
1.0
.75
.11
3.0
90
102
---
1:1
---
A
054
1000 ct
12 ct
3
1.0
.75
.11
3.0
115
1.75
.44
9.13:1
18.26:1
"
055
1000 ct
50 ct
12.5
1.0
.75
.11
3.0
100
5.8
1.5
4.47:1
8.94:1
056
1000 ct
1000 ct
250
1.0
.75
.11
3.0
75
103
26
1:1
2:1
"
057
1060 ct
12.8 ct
3.2
1.0
.75
.11
3.0
115
1.75
.44
9.1:1
18.2:1
"
058
1200 ct
12.8 ct
3.2
1.0
.75
.11
3.0
122
1.75
.44
9.68:1
19.4:1
"
059
1200 ct
500 ct
125
1.0
.75
.11
3.0
113
63
16
1.56:1
3.1:1
"
060
1200 ct
1200 ct
300
1.0
.75
.11
3.0
113
155
39
1:1
2:1
"
061
B 2/
1200 ct
1200 ct
---
1.0
.75
.11
3.0
109
150
---
1:1
---
062
A
1500 ct
12 ct
3
1.0
.75
.11
2.5
140
1.75
.44
11.18:1
22.36:1
063
"
1500 ct
500 ct
125
1.0
.75
.11
2.5
150
60
15
1.73:1
3.46:1
B 2/
064
1500 ct
600 ct
---
1.0
.75
.11
2.5
150
66
---
1.58:1
---
B 2/
065
1500 ct
1500 ct
---
1.0
.75
.11
2.5
150
168
---
1:1
---
066
1600 ct
12.8 ct
3.2
1.0
.75
.11
2.5
140
1.75
.44
11.18:1
22.36:1
A
067
2000 ct
8 ct
2
1.0
.75
.11
2.0
250
1.0
.25
15.8:1
31.6:1
"
068
2000 ct
2000 ct
500
1.0
.75
.11
2.0
185
255
64
1:1
2:1
"
B 2/
069
2000 ct
2000 ct
---
1.0
.75
.11
2.0
175
240
---
1:1
---
A
070
2000 ct
8000 ct
2000
1.0
.75
.11
2.0
185
1015
254
1:2
1:1
See notes at end of table