Testing The Synchronizing Function - Hitachi RET670 Commissioning Manual

Section 11
Testing functionality by secondary injection
Test
equipment
IEC05000480 V4 EN-US
Figure 54:
Test
equipment
IEC05000481 V5 EN-US
Figure 55:
11.11.1.1

Testing the synchronizing function

The voltage inputs used are:
230
IED
U-Bus
U3PBB1
N
U-Line
U3PLN1
UL1
UL2
UL3
N
N
General test connection with three-phase voltage connected to the line side
IED
U-Bus1
U3PBB1
U-Bus2
U3PBB2
U-Line2
U3PLN2
U-Line1
U3PLN1
N
N
General test connection for a 1½ breaker diameter with one-phase voltage
connected to the line side
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UMeasure
Ph/N
Ph/Ph
Input Phase
L1,L2,L3
L12,L23,L31
UMeasure
Ph/N
Ph/Ph
Input Phase
L1,L2,L3
L12,L23,L31
IEC05000480-4-en.vsd
UMeasure
Ph/N
N
Ph/Ph
Input Phase
N
L1,L2,L3
L12,L23,L31
N
UMeasure
Ph/N
Ph/Ph
Input Phase
L1,L2,L3
L12,L23,L31
IEC05000481-5-en.vsd
1MRK 504 165-UEN Rev. K
M2377-21 v8
Transformer protection RET670
Commissioning manual