Table I. Electrical ratings - Continued. 1/
Secondary
Secondary dc
Turns ratio
Impedance
Power in watts
resistance
primary:secondary
Circuit
Primary
Primary
Primary
(ohms)
(ohms)
diagram
Dash
unbalanced
dc
impedance
configu-
Series
Parallel
1 kHz
300 Hz
50 Hz
Series
Parallel
Secondary
Secondary
no.
dc current
resistance
(ohms)
ration
connec-
connec-
and
and
and
connec-
connec-
series
parallel
(mA)
(ohms)
tion
tion
higher
higher
higher
tion
tion
connection
connection
081
7500 ct
50 ct
12.5
1.3
1.3
.03
1.2
600
5.5
1.38
12.25:1
24.5:1
A
082
7500 ct
100 ct
25
1.3
1.3
.03
1.2
600
11
2.75
8.66:1
17.32:1
"
083
7500 ct
600 ct
150
1.3
1.3
.03
1.2
600
66
16.5
3.54:1
7.07:1
"
084
7500 ct
2500 ct
625
1.3
1.3
.03
1.2
600
275
69
1.73:1
3.46:1
"
085
7500 ct
7500 ct
---
1.3
1.3
.03
1.2
600
825
---
1:1
---
B 2/
086
8000 ct
12.8 ct
3.2
1.2
1.2
.03
1.1
640
1.4
.35
25.1
50.1
A
087
8000 ct
1000 ct
250
1.2
1.2
.03
1.1
640
110
27.5
2.83:1
5.66:1
"
088
8000 ct
1200 ct
---
1.2
1.2
.03
1.1
640
132
---
2.58:1
---
B 2/
B 2/
089
9000 ct
9000 ct
---
1.1
1.1
.03
1.1
720
990
---
1:1
---
A
090
10,000 ct
12.8 ct
3.2
1.0
1.0
.03
1
800
1.4
.35
28:1
56:1
091
10,000 ct
16 ct
4
1.0
1.0
.03
1
1.76
800
.44
25:1
50:1
"
10,000 ct
092
100 ct
25
1.0
1.0
.03
1
800
11
2.75
10:1
20:1
"
10,000 ct
093
200 ct
50
1.0
1.0
.03
800
1
22
5.5
7.07:1
14.14:1
"
094
10,000 ct
500 ct
125
1.0
1.0
.03
800
1
55
13.75
4.47:1
8.94:1
"
095
10,000 ct
600 ct
150
1.0
1.0
.03
800
1
66
16.5
4.08:1
8.16:1
"
096
10,000 ct
1000 ct
250
1.0
1.0
.03
1
800
110
27.5
3.16:1
6.32:1
"
097
10,000 ct
1200 ct
300
1.0
1.0
.03
1
800
132
33
2.89:1
5.77:1
"
098
10,000 ct
1500 ct
375
1.0
1.0
.03
1
800
165
41.3
2.58:1
5.16:1
"
099
10,000 ct
2000 ct
500
1.0
1.0
.03
1
800
220
55
2.24:1
4.47:1
"
100
10,000 ct
5000 ct
1250
1.0
1.0
.03
1
800
550
138
1.41:1
2.83:1
"
101
10,000 ct
7500 ct
1875
1.0
1.0
.03
1
800
825
206
1.16:1
2.31:1
"
102
10,000 ct
10,000 ct
2500
1.0
1.0
.03
1
800
1100
275
1:1
2:1
"
103
10,000 ct
10,000 ct
---
1.0
1.0
.03
1
800
1100
---
1:1
---
B 2/
A
104
15,000 ct
400 ct
100
.65
.65
.03
.8
1200
44
11
6.12:1
12.25:1
"
105
15,000 ct
500 ct
125
.65
.65
.03
.8
1200
55
13.8
5.48:1
10.95:1
106
15,000 ct
600 ct
150
.65
.65
.03
.8
1200
66
16.5
5:1
10:1
"
107
15,000 ct
10,000 ct
2500
.65
.65
.03
.8
1200
1100
275
1.22:1
2.45:1
"
108
15,000 ct
15,000 ct
---
.65
.65
.03
.8
1200
1650
---
1:1
B 2/
---
A
109
15,000 ct
15,000 ct
3750
.65
.65
.03
.8
1200
1650
413
1:1
2:1
"
110
16.000 ct
1000 ct
250
.62
.62
.03
.8
1280
110
27.5
4:1
8:1
111
20,000 ct
500 ct
125
.5
.5
.03
.7
1600
55
13.8
6:32.1
12:65.1
"
112
20,000 ct
600 ct
150
.5
.5
.03
.7
1600
66
16.5
5.77:1
11.55:1
"
113
20,000 ct
800 ct
200
.5
.5
.03
.7
1600
88
22
5:1
10:1
"
114
20,000 ct
1000 ct
250
.5
.5
.03
.7
1600
110
27.5
4.47:1
8.94:1
"
115
20.000 ct
5000 ct
1250
.5
.5
.03
.7
1600
550
138
2:1
4:1
"
116
20,000 ct
10,000 ct
2500
.5
.5
.03
.7
1600
1100
275
1.41
2.83:1
"
117
20,000 ct
20,000 ct
---
.5
.5
.03
.7
1600
2200
---
1:1
---
B 2/
A
118
25,000 ct
500 ct
125
.4
.4
.03
.6
2000
55
13.8
7.07:1
14.14:1
"
119
25,000 ct
1000 ct
250
.4
.4
.03
.6
2000
110
27.5
5:1
10:1
"
120
30,000 ct
50 ct
12.5
.33
.33
.03
.6
2400
5.5
1.38
24.5:1
49:1
See notes at end of table.
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