General Device Data
319
7SS52 V4 Manual
C53000-G1176-C182-3
9.2.11 Overcurrent Protection in the Bay Unit
Characteristic
Definite or inverse time overcurrent
protection
Setting ranges
High-set stage
I
>>
(phase) I / I
N
0.05 to 25.00 (in steps of 0.01)
High-set stage
IE
>>
(earth) I / I
N
0.05 to 25.00 (in steps of 0.01)
Trip time delays
TI
>>
, TIE
>>
0.00 to 60.00 s or
∞
Definite time
overcurrent
protection
Overcurrent stage
I
>
(phase) I / I
N
0.05 to 25.00 (in steps of 0.01)
Overcurrent stage
I
E
>
(earth) I / I
N
0.05 to 25.00 (in steps of 0.01)
Trip time delays
TI
>
, TIE
>
0.00 to 60.00 s or
∞
Inverse-time
overcurrent
protection
Inverse time O/C stage I
P
(phase) I / I
N
0.10 to 4.00 (in steps of 0.01)
Inverse time O/C stage I
E
(earth) I / I
N
0.10 to 4.00 (in steps of 0.01)
Trip time delays
TI
P
, TI
E
0.00 to 10.00 or
∞
Characteristics
inverse (IEC 255-3 type A)
very inverse (IEC 255-3 type B)
extremely inverse (IEC 255-3 type C)
tripping times
I>-, I>> stage
Approx.25 ms
Drop-off times
definite time
Approx.25 ms
Tolerances
Current
5 % of setting value or 50 mA
Time
5 % of setting value or 50 ms
+ 2% current tolerance or 50 ms
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Содержание SIPROTEC 7SS522 V4.6
Страница 326: ...Maintenance and Repair 310 7SS52 V4 Manual C53000 G1176 C182 3 w w w E l e c t r i c a l P a r t M a n u a l s c o m ...
Страница 432: ...Appendix 416 7SS52 V4 Manual C53000 G1176 C182 3 w w w E l e c t r i c a l P a r t M a n u a l s c o m ...
Страница 438: ...Index 422 7SS52 V4 Manual C53000 G1176 C182 34 w w w E l e c t r i c a l P a r t M a n u a l s c o m ...