7.
After more than 5 seconds increase the measured voltage back to the value slightly below
USealIn level. MAINFUF signal should not reset.
8. Slowly increase measured voltage to the value slightly above
USealIn until MAINFUF signal
resets.
9. Record the measured voltage and compare with the set value
USealIn.
12.9.3.1
Completing the test
GUID-38A57549-E6BF-46CB-ADFB-79305684EB67 v1
Continue to test another function or end the test by changing the
TestMode setting to Off.
Restore connections and settings to their original values, if they were changed for testing
purposes.
12.10
Control
SEMOD53560-1 v1
12.10.1
Synchrocheck, energizing check, and synchronizing SESRSYN
M2377-3 v11
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 as outlined in section
and
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 = 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
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
shows the general test connection for a 1½ breaker diameter with one-phase voltage
connected to the line side.
Section 12
1MRK 502 067-UEN B
Testing functionality by secondary injection
204
Commissioning manual
