In a certain electric grid conditions,multiple re-ignitions and severe over voltage may be generated at the time when breaking high frequency current.

Through the tests, the re-ignition rates of arc under various structures are obtained.

At present the re-ignition of vacuum switchgear in capacitor banks is one of the most important tasks need to be solved in domestic.

Analysis and Countermeasures for Restrike During Capacitor Switching when Using VCB;

By programming based on the TACS, the simulation of the process of the breakers restrike and the process of the breakdown of capacitors is carried out.

Based on investigation on the situation of type test and conditioning test of switching capacitor using vacuum circuit breaker, this paper analyses the factors that influence on restrike and presents a method to reduce the restriking rate.

In this paper,the action of water mist on PVC fires in a cone calorimeter under different external radiant heat fluxes was studied and the reignition of the PVC fires was analyzed.

In this range, the probability of reignition is lower and the post zero withstand-voltage is higher.

Vacuum breaker is widely applied in the reactive power compensation as the switch of shunt capacitor banks, which will cause reignition and over-voltage after the switching performance gets deteriorated.

The reason of arc restriking overvoltage is analyzed in view of the restriking condition when the 35kV vacuum circuit breaker breaks the reactive compensation device.

Study on the technology of heating asphalt by heavy burning oil;

Technology and Equipm ent of Asphalt Heating Method Using Heavy Burning Oil;