Coil cascade type 220kV environment-friendly explosion-proof current transformer

• Main Authors: WU SHIPU, WANG QI, YAO HAIMING, CAI QIANG, JIANG LINGYUN, WU JIAN, HUANG FENG, WU CHUNFENG, XU SIEN
• Format: Patent
• Language: Chinese; English
• Published: 09.12.2022
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; INDUCTANCES; MAGNETS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES; TRANSFORMERS

The coil cascading type 220kV environment-friendly explosion-proof current transformer comprises a high-voltage shell, a porcelain bushing, a primary conducting rod, a base and a secondary junction box, the high-voltage shell is supported on the porcelain bushing, the primary conducting rod is horizontally connected to the high-voltage shell in a penetrating mode, the base is arranged at the bottom of the porcelain bushing, and the secondary junction box is arranged on the base. A primary conducting rod is arranged in the high-voltage shell, a plurality of primary cascade coils are arranged on the periphery of the primary conducting rod in the high-voltage shell, a coil shielding cylinder is wrapped outside the primary cascade coils, and a plurality of secondary cascade coils are arranged in the secondary junction box. The lead is connected with the first-stage cascade coil and the second-stage cascade coil, and the high-voltage shell is communicated with the porcelain sleeve and filled with insulating gas. T