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:
• Operation = On
• MeasMode = Phase-to-ground
• Umin = 10% of UBase
• DelU> = 50% of UBase
• DelUang> = 10°
• DeltaT = 2
• tHold = 100
2. Set the constant voltage input of UL1 = 63.5V at 0° and UL2 = 63.5V at 180°
secondary at rated frequency.
3. Based on the mode of operation, carry out the following changes on input
condition of Step
2 to detect start condition.
Each mode is given for increase and decrease operation. (3-a and 3-b)
Step No. OpMode Changes after step 2 Expected output
3-a Instantaneous 1
cycle or
Instantaneous 2
cycle
Change UL1 to 20V
STL1 , STLOW, START signal should
be TRUE for 100 ms
3-b Instantaneous 1
cycle or
Instantaneous 2
cycle
Change UL1 back to
63.5V
STL1 , STRISE, START signal should
be TRUE for 100 ms
3-a RMS or DFT
Mag
Change UL1 to 20V STL1, STLOW, START signal should
be TRUE for 100 ms
3-b RMS or DFT
Mag
Change UL1 back to
63.5V
STL1 , STRISE, START signal should
be TRUE for 100 ms
3-a DFT Angle
(vector shift)
Change UL1 to 63.5V
at 15° without changing
frequency
STL1, START signal will be TRUE for
100 ms.
3-b DFT Angle
(Vector shift)
Change UL1 to 63.5V
at 0° without changing
frequency
STL1, START signal will be TRUE for
100 ms
4. Repeat Step 3 with UL2 changes for different mode.
10.8.3.2 Completing the test
GUID-2FE5E5F0-0E6C-499E-93D2-471C183B89BF v2
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.
1MRK 506 377-UEN C Section 10
Testing functionality by secondary injection
Railway application RER670 2.2 IEC 127
Commissioning manual
To Next Page
Loading...
