Completing The Test; Control; Synchrocheck, Energizing Check, And Synchronizing Sesrsyn - ABB Relion 670 Series Commissioning Manual

1MRK 504 165-UEN E
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2. Set a constant voltage input of UL1 = 63.5 V at 0° and UL2 = 63.5 V at 180° secondary and
a current signal at IL1 = 1A at 0° and IL2 = 1A at 180°.
3. Ensure that the P output of CMMXU function has exceeded 10 MW and remains stable.
4. Change the current signal at IL1= 2A at 0° and IL2= 2A at 180°. Both START and STARTRISE
signals should be active for 100 ms.
5. Change the current signal at IL1= 1A at 0° and IL2= 1A at 180°. Both START and STARTLOW
signals should be active for 100 ms.
11.9.6.2

Completing the test

Continue to test another function or end the test by changing the
Restore connections and settings to their original values, if they were changed for testing
purposes.
11.10

Control

11.10.1

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 as outlined in section
section
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
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• ManEnerg = Off
Operation = Off / On
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• 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.
Figure 54
description describes the test of the version intended for one bay.
Transformer protection RET670
Commissioning manual
Operation = ON
MinStVal = 10
DelSt> = 100
DeltaT = 7
tHold = 100
"Preparing for test" in this chapter.
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.
shows the general test connection principle, which can be used during testing. This
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Testing functionality by secondary injection
GUID-2FE5E5F0-0E6C-499E-93D2-471C183B89BF v2
TestMode setting to Off .
"Requirements" and
Section 11
SEMOD53560-1 v2
M2377-3 v12
211