1358 results about "Gas insulation" patented technology

The present invention relates to novel high pressure combination independent electronic type current, voltage transformer, which includes inverted vertical SF6 gas insulation current mutual-inductor, electronic voltage mutual inductor, signal conditioning modulation circuit and direct current supply, the conventional iron-core coil inverted vertical SF6 gas insulation current mutual-inductor of the conventional iron-core coil is taken placed by hollow coil or low power iron-core coil and hollow coil, the insulated low-voltage electric pole is fixed by using the same insulator of current transformer at inner layer of the double-layer shielding barrel, and the low-voltage electric pole has same center with the primary conductor and double-layer shielding barrel, a conducting wire is fixed or welded at the low-voltage electric pole and the inner layer of the double-layer shielding barrel respectively, the output lead of the current secondary winding and the output conducting wire of the voltage transformer secondary sensing connect with the current of the signal conditioning modulation circuit and the input terminal of the electric voltage channel respectively, the direct current supply connects with the signal conditioning modulation circuit. The present invention adopts SF6 as main insulation with simple insulation structure and high insulating intensity, and overcoming defect of electronic type current and voltage transformer and reducing cost greatly.