Title :
A low-impedance, high-voltage direct drive transformer system
Author_Institution :
Sandia Nat. Lab., Albuquerque, NM, USA
Abstract :
The basic design for a 1000 kV, repetition-rated direct-drive transformer system is presented, and solutions to the problems of high magnetic coupling and minimum droop characteristics are proposed. It is shown that air and partial-core transformers can be adapted to multimicrosecond, direct-drive applications where output voltages up to at least 1 MV are required. To achieve adequate coupling, these transformers must operate within winding stresses between 0.5 and 1 MV/cm. Experiments have shown that film-insulated spiral windings can withstand these stress levels when they are impregnated with a high-dielectric-constant liquid such as ethylene glycol
Keywords :
power transformers; pulse transformers; transformer windings; 1000 kV; HV direct drive transformer system; droop characteristics; film-insulated spiral windings; magnetic coupling; winding stresses; Couplings; Diodes; Impedance; Optical pulse generation; Power conditioning; Power transformer insulation; Pulse power systems; Pulse transformers; Switches; Transformer cores;
Conference_Titel :
Power Modulator Symposium, 1988. IEEE Conference Record of the 1988 Eighteenth
Conference_Location :
Hilton Head, SC
DOI :
10.1109/MODSYM.1988.26292
