Evaluation of Resistors for Transient High-Voltage Applications
Abstract
Applications for transient, high-voltage pulsed power [l]. The technologies are on the increase. High-voltage resistors are an essential component of such systems, especially in the proof-of-concept and prototype testing. We have recently procured and tested certain resistor samples, supplied by Kanthal Globar and HVR Advanced Power Components. Results of a detailed evaluation of the HVR resistors are presented in this paper. Two types of HVR high-powered resistors have been tested to determine hold-off voltage, frequency variation and resistance to high voltage. The resistors were tested in a coaxial geometry driven by a two stage h4arx generator. The voltage and current were measured by calibrated sensors. The high-voltage pulse resistance of each resistor is then determined on a pulse by pulse basis by dividing the maximum voltage by the maximum current in the time-domain. The two samples (HVR-10, HVR-12 ; washer type) were nominally 10 and 12 ohms with resistivity of 28 and 80 ohm-cm respectively. The variations in the lowvoltage to pulsed high-voltage resistance were 9% for the HVR-10 and 18% for the M-12. With an average applied field of 65 kV/inch or 25.6 kV/cm, the resistors flashed in air, but not in pure SF6 and N2/SF6 mix. These resistors were found to be satisfactory for transient applications.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1999
- Accession Number
- ADA637416
Entities
People
- C. E. Baum
- D. V. Giri
- J. Hull
- J. M. Lehr
- M. C. Skipper
- M. D. Abdalla
- W. D. Prather
Organizations
- Air Force Research Laboratory