ABB RELION REL670, Installation And Commissioning Manual

Page: 139 / 198

131
Control Chapter 11
Verifying settings by secondary
injection
11 Control
11.1 Synchrocheck and energizing check (RSYN, 25)
This section contains instructions on how to test the synchronism and energizing check for sin-
gle and double CB with or without the synchronizing function and for 1
1
/
2
breaker arrange-
ments.
Prepare the IED for verification of settings as outlined in section 1 "Overview" and section 2
"Preparing for test" in this chapter.
At commissioning and periodical checks, the functions shall be tested with the used settings. To
test a specific function, it might be necessary to change some setting parameters, for example:
• AutoEnerg = On/Off/DLLB/DBLL/Both
• ManEnerg = Off
• Operation = Off , On
• Activation of the voltage selection function if applicable
The tests explained in the test procedures below describe the settings, which can be used as ref-
erences during testing before the final settings are specified.
After testing, restore the equipment
to the normal or desired settings.
A secondary injection test set with the possibility to alter the phase angle by regulation of the
resistive and reactive components is needed. The test set must also be able to generate different
frequencies on different outputs.
Figure 32 shows the general test connection principle, which can be used during testing. This
description describes the test of the version intended for one bay.
Figure 33 shows the general test connection for a 1
1
/
2
CB diameter with one-phase voltage con-
nected to the line side.
Note!
The description below applies for a system with a nominal frequency of 50 Hz but can be directly
transferred to 60 Hz. The synchrocheck function can be set to use different phases, phase to
earth or phase to phase. Use the set voltages instead of what is indicated below.