Testing The Synchronizing Function - ABB REB670 Commissioning Manual

1MRK 505 372-UEN A
10.9.1.1
Busbar protection REB670 2.2 IEC
Commissioning manual
Testing functionality by secondary injection
U-Bus1
Test
equipment
U-Bus2
U-Line2
U-Line1
N
IEC05000481 V5 EN-US
Figure 18: 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 FreqDiffMax
and 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
Section 10
M2377-21 v8
M2377-116 v11
135