Completing The Test - ABB RET670 Commissioning Manual

Section 10
Testing functionality by secondary injection
Checking the operation of MAINFUF and PILOTFUF
1. Simulate normal operation conditions with three-phase voltage on the main fuse group and
the pilot fuse group. Ensure the values are equal to their rated values.
2. Decrease one of the three-phase voltages on main fuse group or pilot fuse group. The voltage
change must be greater than the set value for
PILOTFUF signals are activated without any time delay.
3. Set normal conditions as mentioned in step 1. MAINFUF or PILOTFUF signals should reset.
4. Set
5. Apply three-phase voltages with the value slightly below
6. Decrease one of the three-phase voltages on main fuse group. The voltage change must be
greater than the set value for
7. After more than 5 seconds increase the measured voltage back to the value slightly below
VSealIn level. MAINFUF signal should not reset.
8. Slowly increase measured voltage to the value slightly above
resets.
9. Record the measured voltage and compare with the set value
10.9.3.1

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.
10.10 Control
10.10.1 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
section "Preparing for test"
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.
186
SealIn to On , Vdif Main block to 20% of VBase and VSealIn to 70% of VBase .
in this chapter.
Vdif Main block or Vdif Pilot alarm . MAINFUF or
Vdif Main block . MAINFUF signal is activated.
1MRK 504 154-UUS B
VSealIn level.
VSealIn until MAINFUF signal
VSealIn .
GUID-38A57549-E6BF-46CB-ADFB-79305684EB67 v1
TestMode setting to Disabled .
"Requirements" and
Commissioning manual
SEMOD53560-1 v1
M2377-3 v11