Hitachi RED670 - Testing the Synchronizing Function

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-US
Figure 50: General test connection with three-phase voltage connected to the line side
U-Bus1
U-Line1
N
Test
equipment
IED
U3PBB1
N
IEC05000481-5-en.vsd
N
UMeasure
Ph/N
Ph/Ph
U-Bus2
U-Line2
U3PBB2
U3PLN2
U3PLN1
N
N
Input Phase
L1,L2,L3
L12,L23,L31
UMeasure
Ph/N
Ph/Ph
Input Phase
L1,L2,L3
L12,L23,L31
IEC05000481 V5 EN-US
Figure 51: General test connection for a 1½ breaker diameter with one-phase voltage
connected to the line side
11.10.1.1 Testing the synchronizing function
M2377-21 v8
The voltage inputs used are:
1MRK 505 378-UEN Rev. K Section 11
Testing functionality by secondary injection
Line differential protection RED670 205
Commissioning manual
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