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I have been checking out my stock of 3 phase motors using an Altivar VFD. All ran fine, except one dinky little AEI 3 phase motor. It must be at least 50 years old and has never been out of its original box. The Altivar would barely get it moving before switching off with an earth leakage message. Tried it a couple of times and the second time it tripped the supply RCD for the VFD. OK a leaky winding to earth, not too surprising. The motor is wired in delta, Before binning it, I tried meggering the windings to earth. At 500 volts DC, the earth resistance was 100 megohms, at 1000 volts DC it...

Blog Blog Research Blog 17 Dec, 2020 Author Casey Egan In what represents the third government antitrust lawsuit against Alphabet Inc.'s Google LLC in two months, a bipartisan group of 38 attorneys general from across the U.S. filed suit on Dec. 17 against the online giant, alleging the company engaged in anticompetitive conduct to maintain monopoly power in specific search and advertising markets. The lawsuit, which was filed in federal court in Washington, D.C., asks the court to "enter any relief, as needed, to cure any anticompetitive harm from...

9 Binary code is seen through a 3-D printed Facebook logo in this illustration. US federal and state antitrust officers filed suit against the social media giant, claiming it abused its dominant position. Dueling antitrust lawsuits against Facebook Inc. highlighted the social-media giant's acquisitions of photo-sharing platform Instagram and messaging service WhatsApp. But the allegations of anticompetitive practices included another through-line with potentially far-reaching implications for enterprise technology companies: data sharing. The suits filed Wednesday by ...

Marshfield achievers Boston College High School Several Marshfield residents were named to the honor roll for the first quarter of the 2020-21 school year at Boston College High School in Boston. Students who earned high honors are John Dunderdale, William MacGrath, Connor McCabe, Gavin O'Hara, Shane Roycroft, William Steinaway, Dennis Stiles, Luke Willett, Samuel Burns, Matthew Byrne, John Canavan, Alexander Church, John Church, Benjamin Galvin, Christian Kelley, Jake Minicucci, Sean O'Connell, Seamus O'Reilly, Aidan Walker, Eric Walsh, Thomas Atkinson, Andrew Gagne,  Connor Goodwin, John O...

Dec. 10, 2020 7:31 pm ET Dueling antitrust lawsuits against Facebook Inc. highlighted the social-media giant’s acquisitions of photo-sharing platform Instagram and messaging service WhatsApp. But the allegations of anticompetitive practices included another through-line with potentially far-reaching implications for enterprise technology companies: data sharing. Newsletter Sign-up CIO Journal PREVIEW SUBSCRIBE The suits filed Wednesday by the Federal Trade Commission and 46 state attorneys general argue Facebook leveraged its trove of user information both to ...