Testing The Synchronizing Function - ABB REG670 Commissioning Manual

1MRK 502 073-UUS A
13.10.1.1
Generator protection REG670 2.2 ANSI and Injection equipment REX060, REX061, REX062
Commissioning manual
ANSI05000481 V4 EN-US
Figure 63: General test connection for a breaker-and-a-half diameter with one-
phase voltage connected to the line side

Testing the synchronizing function

The voltage inputs used are:
V3PL1 VA, VB or VC line 1 voltage inputs on the IED
V3PBB1 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
Testing functionality by secondary injection
ANSI05000481-4-en.vsd
Section 13
M2377-21 v8
M2377-116 v11
249