Testing The Synchronizing Function - ABB REG670 2.0 IEC Commissioning Manual

Section 12
Testing functionality by secondary injection
12.10.1.1
204
U-Bus1
Test
equipment
U-Bus2
U-Line2
U-Line1
N
IEC05000481 V5 EN
Figure 52: General test connection for a 1½ breaker diameter with one-phase
voltage connected to the line side

Testing the synchronizing function

The voltage inputs used are:
UP3LN1 UL1, UL2 or UL3 line 1 voltage inputs on the IED
UP3BB1 Bus1 voltage input on the IED
Testing the frequency difference
The frequency difference test should verify that operation is achieved when the
frequency difference between bus and line is less than set value of FreqDiffMaxand
above set value of FreqDiffMin. The test procedure below will depend on the settings
used. Input STARTSYN must be activated during the test.
FreqDiffMax = 50.2 Hz
FreqDiffMin = 50.01 Hz
tBreaker = 0.080 s
1. Apply voltages
IED
UMeasure
U3PBB1
Ph/N
N
Ph/Ph
U3PBB2
Input Phase
N
L1,L2,L3
U3PLN2
L12,L23,L31
N
UMeasure
Ph/N
Ph/Ph
U3PLN1
Input Phase
L1,L2,L3
L12,L23,L31
N
IEC05000481-5-en.vsd
Generator protection REG670 2.0 IEC
1MRK502053-UEN B
Commissioning manual