ABB Relion 670 Series REL670 - Testing the Synchronizing Function

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
Figure 41: General test connection for a 1½ breaker diameter with one-phase
voltage connected to the line side
10.10.1.1 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
Section 10 1MRK 506 355-UEN A
Testing functionality by secondary injection
196 Line distance protection REL670 2.1 IEC
Commissioning manual