Power circuit breaker and power resistor

Year	Description
1992	Invention patented by Naoki Shutoh, Motomasa Imai, Fumio Ueno, Hideyasu Andoh, Shoji Kozuka, Hiroshi Endo, and Iwao Mitsuishi on March 29th, 1992. Abstract: According to this invention, there is disclosed a compact power circuit breaker having a large breaking capacity and stable breaking performance due to a compact closing resistor unit having high performance. The power circuit breaker includes a main switching mechanism having an arc extinguishing function, an auxiliary switching mechanism parallelly connected to the main switching mechanism and having an arc extinguishing function, and a closing resistor unit connected in series with the auxiliary switching mechanism and incorporated with a resistor containing zinc oxide (ZnO) as a main component and titanium figured out as titanium oxide (TiO.sub.2) in an amount of 0.5 to 25 mol% and nickel figured out as nickel oxide (NiO) in an amount of 0.5 to 30 mol. % as sub-components.
Source: selected by the editor from original sources.

Invention: Power circuit breaker and power resistor