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Electromechanical protective relays operate by either magnetic attraction, or magnetic induction. [9]: 14 Unlike switching type electromechanical relays with fixed and usually ill-defined operating voltage thresholds and operating times, protective relays have well-established, selectable, and adjustable time and current (or other operating parameter) operating characteristics.
A variant of the C30-7, 50 GE C30-7As were purchased by Conrail in mid-1984. Externally similar to the GE C30-7 model, six tall hood doors per side (in place of eight) showed it had a 12-cylinder (rather than 16-cylinder) prime mover. Both engines produced 3,000 horsepower (2,200 kW) but the C30-7A's smaller engine used less fuel.
Calls from manual offices to panel offices required the "A" board, or outgoing operator, to request the number from the caller, connect to an idle trunk to the distant exchange, and relay the desired number to the B Board Manual Incoming Call operator, who keyed it to the Panel machine for setting up the incoming and final frames to the called ...
The company's 1908 headquarters building at 212 King Street W in Toronto, designed by Darling and Person. Canadian General Electric Co. Limited (CGE) was incorporated in Canada in 1892 as a merger of Edison Electric Light Company of Canada (of Hamilton, Ontario) and Thomson-Houston Electric Light Company of Canada (of Montreal, Quebec), both incorporated in Canada in 1882.
UAZ-469 medical variant, used in Ukraine A UAZ-3151 used in a military parade in Russia. Modifications include a basic UAZ-469B with ground clearance of 220 mm (8.7 in), and a specialized military UAZ-469, with ground clearance increased to 300 mm (12 in). After slight modernisation in 1985, due to new industry designation standards, they were ...
Maine Central made annual purchases of new steam locomotives from 1899 through 1920. Changing economic climate following World War I terminated routine annual purchases. . Economic restructuring in the early 1920s included purchasing a few modern steam locomotives in 1923 and 1924 while eliminating subsidiary branch lines serving Bridgton, Belfast and Franklin C
The Model 469 is an early model in Smith & Wesson's 59-series, envisioned as pistols that could be easily concealed, but with sufficient firepower to work as service weapons as well. It is a traditional DA/SA pistol with a 3.5-inch barrel, equipped with a slide-mounted safety/decocker.