fix nl tap config

Signed-off-by: Nitish Bharambe <[email protected]>

Author: nitbharambe

src/power_grid_model_io/config/excel/vision_nl.yaml

@@ -823,11 +823,11 @@ grid:
         power_grid_model_io.functions.phase_to_phase.get_clock_13:
           conn_str: Schakeling
       tap_side: Trapzijde u
-      tap_pos: Trapstand i
-      tap_min: Trapmin i
-      tap_max: Trapmax i
-      tap_nom: Trapnom i
-      tap_size: Trapgrootte i
+      tap_pos: Trapstand u
+      tap_min: Trapmin u
+      tap_max: Trapmax u
+      tap_nom: Trapnom u
+      tap_size: Trapgrootte u
       r_grounding_1: Ra1
       x_grounding_1: Xa1
       r_grounding_2: Ra2
@@ -920,6 +920,14 @@ substitutions:
   Trapzijde:
     1: 0
     2: 1
+  Trapzijde u:
+    1: 0
+    2: 1
+    3: 2
+  Trapzijde i:
+    1: 0
+    2: 1
+    3: 2
   Synchrone generatoren.Q:
     terugleveren: -1
     leveren: 1