MR tapcon 240 - Checking control functions

6 Commissioning
Maschinenfabrik Reinhausen 2014 45222/08 EN TAPCON® 240
Checking control functions
This section describes how you can check the device's control functions:
ü Supply voltage must be present.
1. Press to select manual mode.
2. Set transmission ratio for voltage transformer, current transformer and
measuring arrangement.
3. Measure actual voltage and compare with the measured value dis-
played on the device's main screen.
4. Press key several times to display the operating values for current,
power and phase angle and compare them with values of the operating
measuring instruments.
5. Control the on-load tap-changer manually with the or keys until
the measured voltage (V
actual
) reaches the desired voltage (V
desired
) set in
the next stage.
6. Set desired value 1 to the value you want [► 67].
7. Set bandwidth in relation to step voltage [► 68].
8. Set delay time T1 to 20 seconds [► 70].
9. Set control response T1 to linear [► 70].
10. Press to raise the on-load tap-changer 1 step.
11. Press to select auto mode.
ð After 20 seconds, the device returns the on-load tap-changer to the
original operating position.
12. Press to select manual mode.
13. Press to lower the on-load tap-changer 1 step.
14. Press to select auto mode.
ð After 20 seconds, the device returns the on-load tap-changer to the
original operating position.
15. Press to select manual mode.
16. Set delay time T2 to 10 seconds [► 71].
17. Activate delay time T2.
18. Press twice to raise the on-load tap-changer 2 steps.
19. Press to select auto mode.
ð After 20 seconds, the device lowers the on-load tap-changer one
step and after another 10 seconds another step.
20. Press to select manual mode.
6.3.1