Voltage Based Delta Supervision Delvspvc; Verifying The Signals And Settings; Completing The Test; Current Based Delta Supervision Delispvc - Hitachi RET670 Commissioning Manual

1MRK 504 165-UEN Rev. K
11.10.4

Voltage based delta supervision DELVSPVC

Prepare the IED for verification of settings outlined in Section
11.10.4.1

Verifying the signals and settings

Make sure that the function is connected to SMAI function with U3P 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 start condition.
Each mode is given for increase and decrease operation. (3-a and 3-b)
Step No.
3-a
3-b
3-a
3-b
3-a
3-b
4. Repeat Step
11.10.4.2

Completing the test

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.
11.10.5

Current based delta supervision DELISPVC

Prepare the IED for verification of settings outlined in Section
Transformer protection RET670
Commissioning manual
Operation = On
MeasMode = Phase-to-ground
Umin = 10% of UBase
DelU> = 50% of UBase
DelUang> = 10°
DeltaT = 2
tHold = 100
OpMode Changes after step 2
Instantaneous 1
cycle or
Instantaneous 2
cycle
Instantaneous 1
cycle or
Instantaneous 2
cycle
RMS or DFT Mag
RMS or DFT Mag
DFT Angle (vector
shift)
DFT Angle (Vector
shift)
3 with UL2 changes for different mode.
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Change UL1 to 20V
Change UL1 back to 63.5V
Change UL1 to 20V
Change UL1 back to 63.5V
Change UL1 to 63.5V at
15° without changing
frequency
Change UL1 to 63.5V at 0°
without changing frequency
Testing functionality by secondary injection
GUID-FBFEC9C5-1B76-4688-A00D-9EEB33326966 v1
"Preparing the IED to verify
GUID-B05EE7E5-2360-4036-991A-00747C47A625 v2
Expected output
STL1 , STLOW, START signal should be
TRUE for 100 ms
STL1 , STRISE, START signal should be
TRUE for 100 ms
STL1, STLOW, START signal should be
TRUE for 100 ms
STL1 , STRISE, START signal should be
TRUE for 100 ms
STL1, START signal will be TRUE for 100
ms.
STL1, START signal will be TRUE for 100
ms
GUID-2FE5E5F0-0E6C-499E-93D2-471C183B89BF v2
GUID-9EAEFF02-62C2-4FA7-8F3D-E92391206F7F v2
"Preparing the IED to verify
Section 11
settings".
2 to
settings".
227