H - Electricity – 02 – H
Patent
H - Electricity
02
H
317/13
H02H 9/00 (2006.01) H02H 9/04 (2006.01)
Patent
CA 1332074
SURGE PROTECTION DEVICE Abstract of the Disclosure A surge or transient protection circuit is described which operates in an immediate fail-safe mode of failure. If an incoming transient exceeds the tran- sient absorption capacity of the circuit, precision fast-blow fuses are immediately opened to remove current from the load to prevent damage to the equipment connected to the transient suppression circuit and to indicate to the user that the transient suppression abi- lities of this circuit have been damaged. The transient suppression circuit uses silicon transient voltage suppressor components to absorb the fast-rising edge of transients and also uses slower-acting MOV transient absorption devices for the bulk of the overvoltage tran- sient power. Upon short-circuit failure of any of the suppressor components, the excessive current draw pro- duced thereby results in blowing of the fast-blow fuses.
600496
Gowling Lafleur Henderson Llp
World Products Inc.
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