diff --git a/src/main/java/com/xydl/cac/iec/IEDCollectService.java b/src/main/java/com/xydl/cac/iec/IEDCollectService.java
index a1e334b..6b292dc 100644
--- a/src/main/java/com/xydl/cac/iec/IEDCollectService.java
+++ b/src/main/java/com/xydl/cac/iec/IEDCollectService.java
@@ -158,6 +158,11 @@ public class IEDCollectService {
         value = valueNode.getValueString();
         String time = timeNode.getValueString();
         log.info("采集到" + fc + " " + paramindexNew + "=" + value + ", t=" + time);
+        // 句容抽蓄 局放数据为0异常特殊处理
+        if (paramindexNew.toLowerCase().contains("avdsch") && value.equalsIgnoreCase("0.0")) {
+            log.warn("avdsch数据异常，改为-70");
+            value = "-70";
+        }
         if ("NaN".equalsIgnoreCase(value)) {
             return;
         }