Testing The Synchronizing Function - ABB REC650 Commissioning Manual

1MRK 511 248-UEN -
6.7.1.1
Commissioning Manual
Test
U-Bus
equipment
U-Line
N
IEC08000027 V1 EN
Figure 12: General test connection with three-phase voltage connected to the
line side

Testing the synchronizing function

This section is applicable only if the synchronizing function is included.
The voltage inputs used are:
ULine UL1, UL2 or UL3voltage inputs on the IED
U-Bus Bus voltage input on the IED
Testing the frequency difference
The frequency difference is in the example set at 0.20 Hz on the local HMI, and the
test should verify that operation is achieved when the FreqDiffMax frequency
difference is lower than 0.20 Hz. The test procedure below will depend on the
settings used.
1. Apply voltages
1.1. U-Line = 100% UBase and f-line = 50.0 Hz
1.2. U-Bus = 100% UBase and f-bus = 50.2 Hz
2. Check that a closing pulse is submitted and at closing angle less than 2
degrees from phase equality. Modern test sets will evaluate this automatically.
3. Repeat with
Testing functionality
IED
U-Bus
UMeasure
N
Ph/N
Ph/Ph
UL1
Input Phase
UL2
L1,L2,L3
UL3
L12,L23,L31
N
en08000027.vsd
Section 6
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