Title :
The effects of SF6- N2mixture upon the recovery voltage capability of a synchronous interrupter
Author_Institution :
I-T-E Imperial Corporation, Spring House, Penna
Abstract :
The experimental results showing the relation between rate of rise of recovery voltage (RRRV) and percentage of N2- SF6mixture, by pressure, are reported. A description of the test vehicle and the test procedure is also included. For a constant di/dt the optimum interrupter performance, judged in terms of its voltage recovery capability, is observed to occur when the SF6mixed with N2is in the range of 40 to 50 percent. In the limited range of pressures tested, the voltage recovery capability showed to be proportional to the upstream pressure raised to the 1.5 power.
Keywords :
Acceleration; Circuit breakers; Circuit testing; Dielectric breakdown; Gas insulation; Interrupters; Springs; Sulfur hexafluoride; Vehicles; Voltage;
Journal_Title :
Power Apparatus and Systems, IEEE Transactions on
DOI :
10.1109/T-PAS.1976.32086
