The description below applies for a system with a nominal frequency
of 50 Hz but can be directly applicable to 60 Hz. SESRSYN can be set
to use different phases, phase to earth or phase to phase. Use the set
voltages instead of what is indicated below.
Figure 40 shows the general test connection principle, which can be used during
testing. This description describes the test of the version intended for one bay.
Figure 41 shows the general test connection for a 1½ breaker diameter with one-phase
voltage connected to the line side.
Test
equipment
UMeasure
Ph/N
Ph/Ph
IEC05000480-4-en.vsd
U-Bus
U-Line
N
IED
U3PBB1
N
UL1
UL2
UL3
N
Input Phase
L1,L2,L3
L12,L23,L31
UMeasure
Ph/N
Ph/Ph
Input Phase
L1,L2,L3
L12,L23,L31
U3PLN1
IEC05000480 V4 EN
Figure 40: General test connection with three-phase voltage connected to the
line side
1MRK 506 355-UEN A Section 10
Testing functionality by secondary injection
Line distance protection REL670 2.1 IEC 195
Commissioning manual
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