| 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 ＆#118alue 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: |
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