
Figure. 5.3.10 - 121. Cable end differential with natural unbalance in the phase current measurement.
When calculating residual current from the phase currents, the natural unbalance can be around 10 %
while the used CTs are still within the promised 5P class (which is probably the most common CT
accuracy class). When the current natural unbalance is compensated in this situation, the differential
settings may be set to be more sensitive and the natural unbalance does not, therefore, affect the
calculation.
A
AQ
Q-F215
-F215
Instruction manual
Version: 2.04
174
Содержание AQ-F215
Страница 1: ...AQ F215 Feeder protection IED Instruction manual ...
Страница 430: ...Figure 7 4 261 Example block scheme A AQ Q F215 F215 Instruction manual Version 2 04 429 ...
Страница 452: ...Figure 8 14 284 Panel cutout dimensions and device spacing A AQ Q F215 F215 Instruction manual Version 2 04 451 ...
Страница 487: ...10 Ordering information A AQ Q F215 F215 Instruction manual Version 2 04 486 ...