| 摘要 |
1,085,468. Transmission and distribution networks. LICENTIA PATENT VERWALTUNGS G.m.b.H. Feb. 8, 1966 [Feb. 8, 1965], No.5447/66. Addition to 1,085,466. Heading H2H. In an arrangement for limiting excess currents, particularly between inter-connected networks comprising a series resonant circuit L.C which is thrown out of resonance by a saturable choke D on overload, the ratio of the reactance of the choke in its saturated state to the reactance of the capacitor should lie between 0À1 and 1À0 and the ratio of a resistance R to the capacitive reactance should lie between 0À3 and 2À0. The choke may be arranged to saturate at half the supply voltage. The resistor R limits the current when the choke saturates. The arrangement should be designed to pass 1À5 to 2À0 times the normal rated current before passing into the high impedance condition. |
