ABB RED615 Product Manual page 6

Line Differential Protection and Control
RED615
Product version: 2.0
The operating time characteristic for the low
stage can be set to definite time or inverse
definite time mode. The direct inter-trip
Figure 1. Protection function overview of standard configuration A
Figure 2. Protection function overview of standard configuration B
6
function ensures that both ends are always
simultaneously tripped, independent of the
fault current contribution.
GUID-B8CBF357-474F-4F61-BE28-D107515A09AA V2 EN
GUID-81A76312-4CC1-4AE8-A0A3-14C9800EE0E2 V1 EN
1MRS756500 B
Issued: 03.07.2009
ABB