ABB Relion 670 Series Commissioning Manual page 124

Section 10
Testing functionality by secondary injection
4. Set SealIn to On, Vdif Main block to 20% of VBase and VSealIn to 70% of VBase.
5. Apply three-phase voltages with the value slightly below VSealIn level.
6. Decrease one of the three-phase voltages on main fuse group. The voltage change must be greater
than the set value for Vdif Main block. MAINFUF signal is activated.
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 VSealIn until MAINFUF signal resets.
9. Record the measured voltage and compare with the set value VSealIn.
10.8.2.1 Completing the test
Continue to test another function or end the test by changing the TESTMODE setting to Disabled.
Restore connections and settings to the original values, if changed for testing purposes.
10.8.3 Voltage based delta supervision DELVSPVC
Prepare the IED for verification of settings outlined in Section
10.8.3.1 Verifying the signals and settings
Make sure that the function is connected to SMAI function with V3P signal.
Delta supervision function has 6 different modes of operation. Proceed as follows to test the function in a
particular mode.
1. Set the following parameters:
•
•
•
•
•
•
•
2. Set the constant voltage input of UL1 = 63.5V at 0° and UL2 = 63.5V at 120° and UL3 at 63.5 -120°
secondary at rated frequency.
3. Based on the mode of operation, carry out the following changes on input condition of Step
detect pickup condition.
Each mode is given for increase and decrease operation. (3-a and 3-b)
Step No.
3-a
3-b
3-a
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118
Operation = Enabled
MeasMode = Phase-to-ground
Umin = 10% of VBase
DelU> = 50% of VBase
DelUang> = 10°
DeltaT = 2
tHold = 100
OpMode
Instantaneous 1
cycle or
Instantaneous 2
cycle
Instantaneous 1
cycle or
Instantaneous 2
cycle
RMS or DFT Mag
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"Preparing the IED to verify
Changes after step 2
Change UL1 to 20V
Change UL1 back to 63.5V
Change UL1 to 20V
1MRK 505 372-UUS Rev. K
GUID-38A57549-E6BF-46CB-ADFB-79305684EB67 v1
GUID-FBFEC9C5-1B76-4688-A00D-9EEB33326966 v1
settings".
GUID-B05EE7E5-2360-4036-991A-00747C47A625 v2
Expected output
STL1 , STLOW, BFI_3P signal should be
TRUE for 100 ms
STL1 , STRISE, BFI_3P signal should be
TRUE for 100 ms
STL1, STLOW, BFI_3P signal should be
TRUE for 100 ms
Busbar protection REB670
Commissioning manual
2 to