H - Electricity – 02 – J
Patent
H - Electricity
02
J
348/44
H02J 4/00 (2006.01) H02B 1/24 (2006.01) H04B 1/74 (2006.01)
Patent
CA 1202405
ABSTRACT A transmission line changeover switch switches "N (integer not smaller than 3)" active lines and two backup lines. The switch comprises "N" unit switches which are common in number to the active lines. Each unit switch selectively assumes three different statuses, or operation modes, so that the active lines may be connected to the backup lines.
449018
Corporation Nec
Smart & Biggar
LandOfFree
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