H - Electricity – 02 – H
Patent
H - Electricity
02
H
348/15
H02H 9/00 (2006.01) H02H 9/04 (2006.01)
Patent
CA 1228907
ABSTRACT A power line transient surge suppressor circuit features a nonlinear surge-bypassing network connected to bypass line surges around electrical loads connected to circuit output terminals. A fuse is inserted in series with the network, and blows in the event of short-circuit failure of a regulator device in the network. A thermal cut-out preferably of the irreversibly actuated type is inserted in series with the suppressor circuit input. A current-limiting heater resistor connected in parallel with the fuse supplies heat to trip the cut-out after the fuse blows, thereby permanently terminating power output to the loads. A similar suppression network is provided for the earth lead in three-wire systems.
474989
Macrae & Co.
Perma Power Electronics Inc.
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