2026-04-26


etc

  • The US imports 82% of its large power transformers. How it got there, and what it will take to rebuild the capability.

    The working conductor in a high-voltage winding is Continuously Transposed Cable, or CTC. It is a bundle of five to eighty-five individually enameled rectangular copper strands, woven together so that each strand rotates through every radial position along the length of the cable. The rotation is called Roebel transposition, patented by Ludwig Roebel in 1912. Without it, each strand would experience a different loop voltage due to the leakage flux field, and connecting them in parallel at the winding ends would drive circulating currents large enough to dominate the load losses. With it, flux linkage equalizes across every strand, and those currents collapse below half a percent of load current. The manufacturing tolerances are unforgiving: enamel concentricity within 2 microns, strand height within 8 microns, and transposition pitch never exceeding 120 times the strand width. A disc winding for a 500 kV transformer is built by hand.

Horseshit


Rank Propaganda / Thought Policing / World Disordering

Gubmint / Poilitcks / Law Making

Trump

  • Trump rushed out of dinner amid reports of shots fired

    President Trump was rushed out of the White House correspondents’ dinner on Saturday night after several loud bangs were heard, and the Secret Service officers with guns drawn sprinted through the aisles to reach the president. According to the White House press pool, a group of reporters who travel with the president, a member of the Secret Service shouted, “Shots fired.” The event resumed after a brief disturbance, and Mr. Trump wanted to return to deliver his remarks, according to a senior administration official. The press pool said the president had not left the hotel.

Left Angst

Iran / Houthi