Abstract: The objective of this paper is to compare the temperature-rise performance of 4 kinds of AMF contacts designs of 126 kV vacuum circuit breakers (VCBs). The 4 AMF contacts designs are 2/3 ...

Bay to Breakers, the annual 7½-mile dash from the Embarcadero to Ocean Beach, returns to San Francisco this weekend and so, too, do a number of street closures and transit detours. Transportation ...

Our moderators read all reviews to verify quality and helpfulness. Kenmore Bagless Canister Vacuum DC5070 was ordered on February 19 and was received on February 25th (Please be aware the warranty ...

SAN FRANCISCO (KRON) — We’re just days away from San Francisco’s annual Bay to Breakers race. The iconic annual foot race, which has been a San Francisco tradition since 1912, takes place ...

The Cannes Film Festival, now in its 78th year, has officially drawn to a close. The event — which since 13 May has seen actors, directors, producers and influencers make their way up the ...

When you shop through retailer links on our site, we may earn affiliate commissions. 100% of the fees we collect are used to support our nonprofit mission. Learn more. CR’s experts have found ...

(Bloomberg) — ABB Ltd. is exploring a potential sale of the robotics unit, which could be worth more than $3.5 billion, as an alternative to the main spinoff plan, according to people familiar ...

The normal price is $1,599, so it's not a robot vacuum for anyone shopping on a tight budget. The two most prominent features are the roller mop and the blast vacuuming. We previously reviewed the ...

May 12 (Reuters) - The U.S. Nuclear Regulatory Commission (NRC) has launched a special inspection at the Quad Cities Generating Station in Marseilles, Illinois, following discovery of inoperable ...

Abstract: For phase-controlled vacuum breakers, the acting time of the actuator should be precise. The variation of capacitor voltage, capacitance, and environmental temperature impact the dispersion ...