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公开(公告)号：US11843287B2
公开(公告)日：2023-12-12
申请号：US17377824
申请日：2021-07-16
Applicant: Schneider Electric Industries SAS
Inventor： Zhangji Zhou , Lei Shi , Ying Shi , Bing Shuang , Haijun Zhao , Wenhua Wang , Shuang Sun , Siyu Liu
CPC classification number: H02K11/25 , G01R31/343 , H02H7/0852
Abstract: It is disclosed a motor thermal protection device and operation method thereof. The motor thermal protection device utilizes a power supply of a motor for power supplying and comprises: a capacitor timing circuit, configured to time after the motor is powered off; a power-off time determining unit, configured to perform a reading operation of reading an output voltage of the capacitor timing circuit after the motor is powered on, and determine a power-off time from when the motor is powered off to when the motor is powered on according to the output voltage; and a heat accumulation calculating unit, configured to calculate a remaining heat accumulation when the motor is powered on according to the power-off time and a heat accumulation when the motor is powered off.
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公开(公告)号：US11509257B2
公开(公告)日：2022-11-22
申请号：US17138138
申请日：2020-12-30
Applicant: Schneider Electric Industries SAS
Inventor： Ying Shi , Haijun Zhao , Jiamin Chen , Shuang Sun , Zhangji Zhou , Bing Shuang , Fabien Dechamps , Benjamin Edwards
IPC: H02P29/032 , H02P29/024 , H02P29/64
Abstract: A motor protector and a method for operating the same. The motor protector includes: a power supply unit adapted to receive electric power from power supply lines of a motor to power the motor protector; a measuring unit adapted to measure electric parameters of the motor; and a controller configured to at least perform steps of: receiving from the measuring unit the electric parameters; determining, based on the electric parameters, whether the motor experiences a first failure related to overheating of the motor; enabling, in accordance with determination of the first failure of the motor, the power supply unit to power a closing mechanism of the motor protector after a predetermined time, thereby closing the closing mechanism to power the motor by the power supply lines; determining, based on the electric parameters, whether the motor experiences a second failure different from the first failure; and enabling, in accordance with determination of the second failure of the motor, the power supply unit to stop powering the closing mechanism. Hence, the motor protector can discriminate types of the motor failures and adopt corresponding measures for different failures.
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公开(公告)号：US12212131B2
公开(公告)日：2025-01-28
申请号：US17377858
申请日：2021-07-16
Applicant: Schneider Electric Industries SAS
Inventor： Ying Shi , Haijun Zhao , Fabien Dechamps , Zhangji Zhou , Shuang Sun
Abstract: The disclosure relates to a power supply device for a motor protector and a power supplying method thereof. The motor protector receives power. The power supply device comprises: a first power supplying unit, configured to receive and store the power and supply power to a tripping device of the motor protector; a second power supplying unit, configured to receive the power and supply power to a calculation and control device of the motor protector; a third power supplying unit, configured to receive and store the power and supply power to a reclosing device of the motor protector; and a control unit, configured to control an order in which the first power supplying unit, the second power supplying unit and the third power supplying unit receive the power.
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公开(公告)号：US11652345B2
公开(公告)日：2023-05-16
申请号：US17378044
申请日：2021-07-16
Applicant: Schneider Electric Industries SAS
Inventor： Haijun Zhao , Ying Shi , Jiamin Chen , Fabien Dechamps , Zhangji Zhou , Shuang Sun , Bing Shuang , Lei Shi
CPC classification number: H02H3/06 , H02H7/0833
Abstract: The present disclosure relates to a driving apparatus for a reclosing apparatus and a driving method thereof. The driving apparatus comprises a first energy storage unit, a timing unit, a control unit, and a first power supply unit, a second energy storage unit and a driving unit. The timing unit outputs a first enable signal; the control unit outputs a second enable signal or a third enable signal; the first power supply unit enables the second energy storage unit to receive the power when receiving the second enable signal, and enables the second energy storage unit to discharge when receiving the third enable signal; the second energy storage unit receives and stores the power via the first power supply unit; and the driving unit provides the power stored in the first energy storage unit to the reclosing apparatus when a predetermined condition is satisfied.
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