With the characteristics of high torque, wide speed regulation range, and stable starting performance, high-power DC motors have application scenarios covering the industrial heavy equipment field (driving rolling mills, large winches, and ship propulsion systems), transportation field (traction motors for traditional diesel locomotives and port gantry cranes), special operation field (motors for large excavators and excitation motors for large generators), and energy & infrastructure field (large water pumps and large fans). Their conventional parameters include rated power (above 100kW, with a mainstream range of 200kW-2000kW and special models exceeding 5000kW), rated voltage (common values of 440V/660V/750V, and 1000V-1500V for large industrial equipment), rated speed (500-3000rpm, with a speed regulation ratio of up to 1:10), rated torque (from several thousand to tens of thousands of Newton-meters; for example, a 200kW/1000rpm model has a rated torque of approximately 1910N·m), excitation method (mainly separately excited type, and partially compound excited type), cooling method (forced air cooling and water cooling, with water cooling mostly used for high-power models), and protection level (IP54/IP55 for industrial use, and IP65 for outdoor/humid environments). These motors can meet the requirements for high-load and high-precision power output in heavy-duty scenarios.
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