STUDY, INVESTIGATION, AND DEVELOPMENT OF NON-DESTRUCTIVE RELIABILITY SCREENING OF METALLIZED MYLAR CAPACITORS.
Abstract
The scope of work being performed is reviewed, and the self-healing mechanism unique to metallized Mylar capacitors is described. The principal failure modes of these capacitors are listed. The procedures used to determine the proper measurement conditions for nondestructive screening are presented. The techniques used to analyze the results of these investigations are outlined. The measurement conditions which showed the largest dispersions of results are: for insulation resistance - 300 VDC at 65C; for dissipation factor 30 VAC, 100 cps, at 85C. An additional experiment selected conditions of 250 VAC, 60 cps, at 25C for the test. The details of this experiment are described. The program for the clearing test is detailed, and the life test conditions for the cleared units are given. One portion of the clearing test remains to be accomplished. The program for the burn-in test is outlined, and the test matrix is presented. The results of life testing the burned-in units are being analyzed. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1965
- Accession Number
- AD0626992
Entities
People
- E. Rondeau
Organizations
- Sprague Electric