High-voltage failure mechanisms in liquid-filled, Fluorinert FC-40, capacitors

Conference · Thu Dec 31 00:00:00 EST 1992

OSTI ID:10125950

McBrayer, J D; Richardson, C B; Jojola, A A ^[1]; Pitre, L J ^[2]

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1. Sandia National Labs., Albuquerque, NM (United States)
2. Martin Marietta Specialty Components, Largo, FL (United States)

The high-voltage electrical failure of a liquid-filled, FC-40 Fluorinert, capacitor occurred during a system random vibration test. This failure occurred between 1 and 5 hours of random vibration of the system in the longitudinal axis of the capacitor. The previous five hours of random vibration in the transverse direction left the capacitor functioning as designed. Similar failures were observed during component random vibration testing under high-voltage. This paper will describe the investigation of the above mentioned failures. The design and processing of this type of capacitor technology will also be reviewed. Both electrical and mechanical data will be provided. The results of this investigation revealed the cause of the above failures and the procedures necessary for avoiding such failures in the future. The interaction of the mechanical system, piece-part designs and the bellows temperature compensation system will be explained in connection with the electrical failures. Suggestions for future improved designs will be included.

• Research Organization: Sandia National Labs., Albuquerque, NM (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC04-76DP00789
• OSTI ID: 10125950
• Report Number(s): SAND-92-1981C; CONF-930394-1; ON: DE93006286
• Resource Relation: Conference: 13. capacitor and resistor technology symposium: CARTS `93,Costa Mesa, CA (United States),8-11 Mar 1993; Other Information: PBD: [1992]
• Country of Publication: United States
• Language: English

Related Subjects

45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE
42 ENGINEERING
CAPACITORS
MATERIALS TESTING
ELECTRICAL TESTING
FAILURE MODE ANALYSIS
MECHANICAL VIBRATIONS
FAILURES
SULFONES
POLYMERS
WELDED JOINTS
INSPECTION
DEFECTS
450000
426000
420500
MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE
COMPONENTS
ELECTRON DEVICES AND CIRCUITS