Vacuum since the current consumption of electric arc furnace with DC power most of the output 6 pulse, resulting in low harmonic pollution of grid power by increasing the number of output pulse from the source to reduce the low harmonic pollution on power. Design of the the OLTC device combined with the control panel angle control thyristor, to avoid thyristor in a dark control state is a low power factor.
NETL
NSTL
万方数据
维普
