V-Bus1
V-Line1
N
Test
equipment
IED
V-Bus1
N
ANSI11000273-2-en.vsd
N
VMeasure
Ph/N
Ph/Ph
V-Bus2
V-Line2
V-Bus2
V-Line2
V-Line1
ANSI11000273 V2 EN
Figure 14: General test connection for a breaker-and-a-half diameter with one-
phase voltage connected to the line side
6.7.1.1 Testing the synchronizing function
This section is applicable only if the synchronizing function is included.
The voltage inputs used are:
V-Line
VA, VB or VC line 1 voltage inputs on the IED
V-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. Input
STARTSYN must be activated during the test.
1. Apply voltages
1MRK 505 293-UUS A Section 6
Testing functionality
93
Commissioning manual
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