This paper analyses the formative cause of the crime from the aspects of biology, psychology and action.
The paper introduces the condition of the continuous high voltage during1999 dry season of Hubei Main Network, analyzes the formative cause, describes the treatment methods in other province and provids suggestion to restrain high voltage and improve reactive voltage in Hubei Network.
At last, vacuum circuit breaker switching capacitance group overvoltage formative causes and electrode refining for lessening reignition are discuss.
