Usage of the spiral pulsar in the high voltage-current generator system

Summary form only given. High voltage pulse rig for testing of suspended insulators of high voltage transmission lines has been elaborated. It includes a spiral generator of high voltage pulses (SG) and pulse currents generator (PCG), which work synchronously on the common load. Use of the SG in this rig has permitted to create a compact, easily manipulated and inexpensive system, suitable for application in automatic lines for insulator manufacturing. The SG consists of tapes made of aluminum foil, separated by multi-layer oil-soaked polypropylene film, which is wound on a cylinder base. Commutation of an active line in the middle of its electrical length is used for decreasing of the output voltage rise-time and maximising efficiency of the device. The peculiarity of the elaborated circuit structure is in follows: the energy stored in the PCG is transmitted into the load through one of the tapes that formed SG. It has permitted the PCG to be used simultaneously as a source of the SG resonant charge that provides increase of its resource characteristics; to simplify substantially the electrical scheme of the rig by decreasing the number of spark commutators used in it to two (in the case of the usage of a compliment sharpening spark gap-to three); to guarantee a synchronicity of SG and PCG pulses. Usage of the proposed circuit structure has permitted to create a system that at a mass of 30 kg and dimensions 0.5/spl times/0.5/spl times/0.5 meters provides obtaining the test voltage pulse of 500 kV with the rise velocity of 7/spl times/10/sup 12/ V/s in the capacity load of 3/spl times/10/sup -10/ F. Maximum permitted current level in the load is restricted by the parameters of a tape from which SG is made and by estimations may reach tens of kiloamperes for the elaborated construction.