Hitachi Relion 670 Series Commissioning Manual page 209

1MRK506371-UUS Rev. M
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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 TestMode setting to Disabled. 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
(25)
This section contains instructions on how to test the synchrochecksynchronism check, energizing check,
and synchronizing function SESRSYN (25) for single, double and breaker-and-a-half arrangements.
Prepare the IED for verification of settings as outlined in section
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 = Disabled/DLLB/DBLL/Both
• ManEnerg = Disabled
• Operation = Disabled/Enabled
• 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 50
describes the test of the version intended for one bay.
Line distance protection REL670
Commissioning manual
Operation = ON
MinStVal = 10
DelSt> = 100
DeltaT = 7
tHold = 100
The description below applies for a system with a nominal frequency of 60 Hz but can be
directly applicable to 50 Hz. SESRSYN (25) can be set to use different phases, phase to
ground 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 description
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Testing functionality by secondary injection
GUID-2FE5E5F0-0E6C-499E-93D2-471C183B89BF v2
"Requirements" and section
Section 11
SEMOD53560-1 v2
M2377-3 v12
"Preparing
203