Control; Synchrocheck, Energizing Check, And Synchronizing Sesrsyn - ABB rec670 Commissioning Manual

1MRK 511 360-UEN A
10.9
10.9.1
Bay control REC670 2.1 IEC
Commissioning manual
Testing functionality by secondary injection

Control

Synchrocheck, energizing check, and synchronizing
SESRSYN
This section contains instructions on how to test the synchrocheck, energizing check,
and synchronizing function SESRSYN for single, double and 1½ breaker
arrangements.
Prepare the IED for verification of settings outlined in section
verify settings".
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 = 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 references 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 and
amplitude of the voltage is needed. The test set must also be able to generate different
frequencies on different outputs.
The description below applies for a system with a nominal frequency
of 50 Hz but can be directly applicable to 60 Hz. SESRSYN can be set
to use different phases, phase to earth or phase to phase. Use the set
voltages instead of what is indicated below.
Figure 21 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 22 shows the general test connection for a 1½ breaker diameter with one-phase
voltage connected to the line side.
Section 10
"Preparing the IED to
141