FEASIBILITY AND DESIGN STUDY FOR ELECTROSTATIC GENERATORS
Abstract
Efforts were continued on a feasibility and de sign study for electrostatic generators. Progress was made in the study of high voltage insulation in vacuum. The superiority of titanium alloy Ti-7Al-4Mo as an electrode material over other high strength materials, which was deter mined with small electrodes, was confirmed for large area electrodes. Forty-five kv/mm was insulated over 1000 cm sq/ft areas with the titanium alloy and 35 kv/mm with stainless steel coated with an epoxy. Much time was lost due to malfunctions of the high speed shaft seal on the 1 - 3 kw generator. Although a reasonable pres sure level can be maintained with the shaft spinning, oil vapor, which is an acknowledged enemy of vacuum insulation, accumulated in the system to the detriment of the electric field properties of the generator. Data has been obtained on the operation of vacuum-insulated generators. Using a smaller machine, the first power run has been made using dielectric-coated stator blades and a rotor system completely at shaft potential.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 30, 1963
- Accession Number
- AD0403762
Entities
People
- C. N. Coenraads
- F. J. Mccoy
- J. Lavelle