1、Q / GDW ICS29.240ICS . CEC Q/GDW 446 2010 Guidefor ConditionEvaluationofCurrentTransformer 2010-06-21 2010-06-21 Q / GDW 446 I II 1 1 2 1 3 1 4 2 5 2 A 4 B 6 7Q / GDW 446 II A B Q / GDW 446 1 110 66 750kV 35kV GB 1208 GB 50150 2006 DL/T664 2008 Q/GDW168 2008 2008 269 condition criteria minorcriteria
2、 majorcriteria normal condition attentivecondition Q / GDW 446 2 abnormalcondition seriouscondition 1 2 3 4 1 2 3 4 1 2 3 4 2 4 8 10 1 1 2 3 4 2 2 4 6 8 4 4 8 12 16 8 8 16 24 32 10 10 20 30 40 Q / GDW 446 3 A 2 2 2 2 30 30 12 16 20 24 30Q / GDW 446 4 A 4 2 1 10 2 2 3 4 3 2 8 SF 6 1 3 4 3K 2 3 8 55 2
3、 4 4 3 5 8 3 2 2 6 4 2 7 4 1 8 4 3 4 15K 2 9 8 90 2 10 4 2 8 SF 6 4 11 SF 6 4 SF 6 4 12 2 13 4 50 3000M 2 14 4 tan 500kV 0.006 220kV 0.007 110kV 0.008 0.005 3 15 8 5% 3Q / GDW 446 5 2 1000M 1 16 8 1000M tan 0.015 1 2 H2 150 L/L 2 4 100 L/L 2 17 1 8 220kV 1L/L 110kV 2L/L 2 18 4 20pC 20pC 50pC 3 19 SF 6 4 A 250 L/L 500 L/L 2 20 4 3 21 4 3 22 2 1 Q / GDW 446 6 B 110 66 kV / / Q / GDW 446 7 Q / GDW 446 8 1 9 2 9 3 9 4 10Q / GDW 446 9 2009 3 19 20 2009 5 8 2009 9 26 28 4 2009 10 8 10 18 2009 10 19 20 2009 10 30 11 30 2009 12 1 12 5 2009 12 7 12 9 2009 12 12 Q / GDW 446 10
