The production of the lightning impulse current is very important for research and Standard quality control tests. Conduction of IEC standard type tests on metal-oxide high voltage surge arresters needs a lightning impulse current generator system that is able to produc More
The production of the lightning impulse current is very important for research and Standard quality control tests. Conduction of IEC standard type tests on metal-oxide high voltage surge arresters needs a lightning impulse current generator system that is able to produce both lightning impulse current and simultaneous several kV residual voltage. This paper describes the design and manufacturing of a one million volt residual voltage, 10 kA lightning current generator system and the innovation in design of an integrated high voltage air core reactor. Experimental laboratory tests show the good performance of the manufactured generator and its capability to perform standard type test on metal-oxide high voltage surge arresters.
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One of the main tests of power circuit breaker is to evaluate their breaking capability. Direct test requires a high power source capacity but using the synthetic method and supplying current and voltage from two separated sources, allows to significant power reduction. More
One of the main tests of power circuit breaker is to evaluate their breaking capability. Direct test requires a high power source capacity but using the synthetic method and supplying current and voltage from two separated sources, allows to significant power reduction. This paper presents the design, development and fabrication of a synthetic circuit for testing vacuum circuit breaker using distribution network as current circuit. The development and construction of this equipment has made possible to perform short circuit breaking test on VCB according to international standards. Laboratory measurements show good conformity between design and fabrication.
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