H - Electricity – 01 – H
Patent
H - Electricity
01
H
306/284
H01H 83/22 (2006.01) H01H 61/06 (2006.01) H01H 71/22 (2006.01)
Patent
CA 1329408
Abstract In a plural phase overload relay, a pivot lever (12) is mounted to the ambient compensator deflector (9), and a second pivot lever (34) is mounted to both driver and follower slide bars (36 and 38) and driven thereby to engage and pivot the first lever on the ambient compensator deflector to trip a cut-out switch. The ambient compensator deflector adjusts both the three phase current trip threshold and the loss of phase current trip threshold, and also affords ambient compensator of each. A constant ratio relationship between these two thresholds is provided throughout the entire range of current trip threshold settings. The driver bar moves a first distance for three phase trip and a second shorter distance for loss of phase trip. The ratio of these distances is constant notwithstanding adjustment by the ambient compensator deflector changing the length of such distances.
584203
Fajner Michael J.
Mallonen Edward A.
Siebenlist John J.
Borden Ladner Gervais Llp
Corporation Eaton
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