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Liquid rheostats used as motor start switches, circa 1900. A liquid rheostat or water rheostat [1] or salt water rheostat is a type of variable resistor.This may be used as a dummy load or as a starting resistor for large slip ring motors.
9 starting voltage tap connections allowing for ± 5% variation of starting torque around NEMA recommended taps at 50%, 65% and 80%. This allows the selection of motor starting torque to be closely matched with the driven load requirements. Selection is by means of the connection links between the winding sections.
335 hp 0.83 kW/kg 0.50 hp/lb SAI GM3 radial piston hydraulic motor [49] 15 kg 33 lb 15 kW 20 hp 1 kW/kg 0.61 hp/lb Denison GOLD CUP P14 axial piston hydraulic motor [50] 110 kg 250 lb 384 kW 509 hp 3.5 kW/kg 2.0 hp/lb Denison TB vane pump [51] 7 kg 15 lb 40.2 kW 53.9 hp 5.7 kW/kg 3.6 hp/lb
Standard Motor Products was founded in Manhattan in 1919 as a partnership between Elias Fife, a Jewish immigrant from Lithuania, [2] and Ralph Van Allen. [3] Originally the company specialized in ignition and electrical parts. [4] In 1920 Van Allen opened a Standard Motor Products branch in Seattle.
Self-starting polyphase induction motors produce torque even at standstill. Available squirrel-cage induction motor starting methods include direct-on-line starting, reduced-voltage reactor or auto-transformer starting, star-delta starting or, increasingly, new solid-state soft assemblies and, of course, variable frequency drives (VFDs). [39]
Small businesses are bracing for stiff tariffs that President-elect Donald Trump has proposed as one of his first actions when he takes office. Trump has proposed importers pay a 25% tax on all ...
A dimension that establishes a distance away from the finished floor. Example would be the top of a coffee table to the shag of the carpet, not where the bottom of the tables feet dig in. AISI: American Iron and Steel Institute: The AISI acronym is commonly seen as a prefix to steel grades, for example, "AISI 4140".