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 Products >> LOW VOLTAGE PRODUCTS >> TRANSFORMER >> PR Current Transformers
PR Current Transformers
    Product details

PR Current Transformers

 PR Series:

Protective current transformers are required to operate over a range of current many times the circuit rating and is frequently subjected to conditions greatly exceeding those which it would be subjected to as a measuring current transformer. When a current transformer is used to energise a protective relay, it must maintain its characteristic ratio up to some multiple offered rated current. This multiple, may be 5, 10, 20 or some even higher value and is know as the Accuracy Limit Factor(ALF). Therefore, the selection of Protective Current Transformers in relation to accuracy class and ALF require a close examination of relay characteristic and circuit conditions which includes the relay burden and the pilot wire lead burden

Dimensions (mm)

CI: 10P5 15VA

Spec.
60/5A
100/5A
150/5A
200/5A
250/5A
300/5A
400/5A
500/5A
600/5A
OD
100
100
100
100
96
96
96
100
100
ID
34
34
34
34
34
34
34
60
65
HT
148
98
68
58
68
68
68
48
58

CI: 5P10 15VA

Spec.
100
/5A
150
/5A
200
/5A
250
/5A
300
/5A
400
/5A
500
/5A
600
/5A
800
/5A
1000
/5A
1200
/5A
1600
/5A
2000
/5A
2500
/5A
3000
/5A
3500
/5A
4000
/5A
5000
/5A
OD
100
100
100
96
96
96
102
110
120
120
123
123
123
178
178
182
182
184
ID
34
34
34
45
45
45
62
68
62
85
82
82
125
125
125
120
120
118
HT
180
130
110
110
110
90
110
88
22
68
60
68
40
40
40
35
35
38

CI: 10P10

Spec.
100
/5A
150
/5A
200
/5A
300
/5A
400
/5A
500
/5A
600
/5A
800
/5A
1000
/5A
1200
/5A
1600
/5A
2000
/5A
2500
/5A
3000
/5A
OD
100
100
100
96
96
102
110
120
120
123
123
178
178
178
ID
34
34
34
45
60
60
68
62
85
82
82
125
125
125
HT
168
108
88
108
108
88
88
22
58
60
50
38
38
38

outline drawing:

PR Current Transformers


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