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Influences of Control Mode of Reduced Voltage Starting on High-capacity Motor
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Bo Bai1, Yaqiang Zhou1, Cun Li2
Science & Technology of Baotou Steel | 2025, 51(2) : 77 - 79
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Science & Technology of Baotou Steel | 2025, 51(2): 77-79
• Equipment and Automation •
Influences of Control Mode of Reduced Voltage Starting on High-capacity Motor
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Bo Bai1, Yaqiang Zhou1, Cun Li2
Affiliations
  • 1 Baotou Steel Yingda Gas Co., Ltd., Baotou 014010, Inner Mongolia Autonomous Region, China
  • 2 CSP Plant of Inner Mongolia Baotou Steel Union Co., Ltd., Baotou 014010, Inner Mongolia Autonomous Region, China
Published: 2025-04-25
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With the scaling up of air separation equipment, the capacities of supporting motors for air compressor, supercharger and oxygen reciprocating compressor are also increased. The capacity of motor for air compressor is developed to over 20,000 kW and scaling up of motor has brought unprecedented challenges for control and starting of motor and power grid. The start-up process of high-capacity motor is particularly complicated. On the one hand, the influences on power grid should be considered, on the other hand, the impact on motor and starting equipment should also be considered. Various starting modes are adopted based on conditions and demands in the industry, the reduction voltage with auto transformer discussed in the paper is one of mature reduced voltage starting technologies. The impact of auto transformer on power grid is low as well as it is with simple operation and stable performances, so it is widely used in the air separation industry. If the control mode of reduced voltage starting for auto transformer is selected improperly, it will cause certain damages to motor. The start control of auto transformer is studied and analyzed through cases in the paper.

reduced voltage starting  /  reclosure  /  residual voltage after AC dump
Bo Bai, Yaqiang Zhou, Cun Li. Influences of Control Mode of Reduced Voltage Starting on High-capacity Motor[J]. Science & Technology of Baotou Steel, 2025 , 51 (2) : 77 -79 .
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Year 2025 volume 51 Issue 2
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  • Receive Date：2024-12-11
  • Online Date：2025-10-22
  • Published：2025-04-25
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  • Received：2024-12-11
Affiliations
    1 Baotou Steel Yingda Gas Co., Ltd., Baotou 014010, Inner Mongolia Autonomous Region, China
    2 CSP Plant of Inner Mongolia Baotou Steel Union Co., Ltd., Baotou 014010, Inner Mongolia Autonomous Region, China
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表12种不同金属材料的力学参数
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Number of
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Number of
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小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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