• IEC 61869, ANSI/IEEE C57.13, NEMA
• ISO 9001, KEMA, CESI, CE, TUV, UL, ASTA
• Seismic design, ETGI-1.020, IEEE Std 693, NCh2369
• Structural design, ASTM A325, ANSI/AISC 360, AWS D1.1
• High altitude correction per IEC 61869 & IEEE C57, ~ 5000m
• High Quality Paper-Oil Insulation, Mineral oil (No PCB), Hermetically Sealed
• Special accuracy classes PR, PX, PXR, TPX, TPY, TPZ or C 100-800 (IEEE), etc..