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2 results about "Motor soft starter" patented technology
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A motor soft starter is a device used with AC electrical motors to temporarily reduce the load and torque in the power train and electric current surge of the motor during start-up. This reduces the mechanical stress on the motor and shaft, as well as the electrodynamic stresses on the attached power cables and electrical distribution network, extending the lifespan of the system.
Asymmetric cooperative control three-phase balance motor soft starter
ActiveCN224289648Ureduce vibrationreduce noiseStarter detailsPolyphase induction motor starterThree phase asynchronous motorControl signal
The utility model discloses an asymmetric cooperative control three-phase balance motor soft starter, comprising a three-phase AC power supply input end, a power adjusting unit, an output end connected to a three-phase asynchronous motor, and a main controller which are connected in sequence. The power adjusting unit comprises an A-phase control module which is internally provided with a first thyristor at least controlled by a main controller; the B-phase control module is internally provided with a pair of antiparallel second thyristors controlled by the main controller; and the C-phase control module is internally provided with a pair of third thyristors which are controlled by the main controller and are reversely connected in parallel. The main controller cooperatively controls the conduction angles of the first thyristor, the second thyristor pair and the third thyristor pair in the starting process of the motor by outputting a control signal so as to adjust the voltage applied to the motor and improve the balance of the three-phase output voltage. According to the utility model, the three phases are controlled, so that the three-phase balance during starting is effectively improved, and the vibration and noise of the motor are reduced.
Owner:SUZHOU VAIDNOR ELECTRONICS TECH
A motor soft starter
The utility model relates to a motor soft starter, including soft starter main part, the upper and lower two sections of soft starter main part are equipped with an installation board respectively, be equipped with mounting hole and the strip -shaped hole of width less than mounting hole and in the upper intercommunication mounting hole on the installation board, still include fixed lid, the number of fixed lid is identical with mounting hole, fixed lid with installation board articulates, the articulation position of fixed lid with installation board is located at mounting hole, be equipped with with the fixed groove of the head portion of bolt adaptation between fixed lid with installation board. The utility model provides a kind of motor soft starter of convenient dismounting and stable.
Owner:ZHEJIANG LUOKA ELECTRIC CO LTD