Series resonance fault current limiter for recovery voltage after short circuiting of high-voltage circuit breakers at the outlet

In view of the difference between the simulation test circuit consisting of lumped parameters and the distributed parameters in actual system,numerical simulation of the peak values and rising rates of recovery voltage under single-phase earth fault is performed,and the equivalency between simulation test circuit .

The power frequency over-voltage,the secondary arc current,and the recovery voltage of the lines with different tower types and various phase order arrangement are studied under different system operational modes.

Explanation of voltage recovery of discharged alkaline Zn/MnO_2 battery and its use;

This dissertation studies the phenomenon of delayed voltage recovery in power system of Saudi Electricity Company Western Region(SEC-WR).

When a flashover of tested equipment occurs in power frequency insulation experiments,a protection equipment of restoring over-voltage is presented in this paper based on theoretic analysis,to which the test voltage is applied from a testing transformer.

This paper adopted following namely deoxidation electric current law and deoxidation voltage law to remove mark of galva- nomete pressure,the voltmeter diffluence,to reach the purpose cutting down error.