From 8c8064ecce72267f749636efb7b0465d33148623 Mon Sep 17 00:00:00 2001
From: Anne Tilloy <anne.tilloy@rte-france.com>
Date: Wed, 1 Jun 2022 11:00:01 +0200
Subject: [PATCH] Fix cut.

Signed-off-by: Anne Tilloy <anne.tilloy@rte-france.com>
---
 src/main/java/com/powsybl/openloadflow/network/LfNetwork.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/main/java/com/powsybl/openloadflow/network/LfNetwork.java b/src/main/java/com/powsybl/openloadflow/network/LfNetwork.java
index 94c6a4e417..67c0c695bf 100644
--- a/src/main/java/com/powsybl/openloadflow/network/LfNetwork.java
+++ b/src/main/java/com/powsybl/openloadflow/network/LfNetwork.java
@@ -601,7 +601,7 @@ public void fixTransformerVoltageControls() {
             if (!branch.isDisabled() && branch.isVoltageController() && branch.isVoltageControlEnabled()) {
                 controllerBranches.add(branch);
             }
-            if (branch.isDisabled()) {
+            if (branch.isDisabled() && branch.getBus1() != null && branch.getBus2() != null) {
                 // apply contingency (in case we are inside a security analysis)
                 getConnectivity().cut(branch);
             }