Abstract: Embodiments of the disclosure provide a method, an apparatus, a storage medium and a program product for reduced-voltage starting of a motor. The method includes: determining a line voltage between a first phase and a second phase in a line in response to obtaining a starting instruction indicating starting of the motor; determining a zero-crossing point of the line voltage; starting a first timing in response to reaching the zero-crossing point of the line voltage; closing a first switch of the first phase and a second switch of the second phase in response to the first timing satisfying a first predetermined duration; starting a second timing in response to the first switch and the second switch being closed; and closing a third switch of a third phase relative to the first phase and the second phase in the line in response to the second timing satisfying a second predetermined duration.

Abstract: Disclosed is a solid-state circuit breaker including an electronic switch; a mechanical switch configured to complete a turn-on process and a turn-off process by manual operation; a sensor configured to generate a trigger signal depending on a position of the mechanical switch during the turn-on process or the turn-off process; a control unit configured to activate a boosting mechanism according to the trigger signal; and the boosting mechanism configured to provide a boost for the turn-on process or the turn-off process; Wherein the electronic switch is connected in series with the mechanical switch.

Abstract: The present disclosure provides a system for detecting failures of solid-state switches in a main circuit, the system including: a first solid-state switch; a second solid-state switch connected in series with the first solid-state switch and in parallel with a diode; a voltage dividing resistor connected in series with the first solid-state switch and the second solid-state switch; an injection unit configured to apply a voltage to a circuit including the first solid-state switch, the voltage dividing resistor, and the second solid-state switch; and a control unit configured to: transmit a first driving signal and a second driving signal to the first solid-state switch and the second solid-state switch, respectively; and determine whether the first solid-state switch and the second solid-state switch have failures based on a voltage across the voltage dividing resistor, wherein there is no voltage in the main circuit.

Abstract: Disclosed is a control device for an electrical load including a fixedly arranged stationary module, wherein a backup unit is arranged in the stationary module; a replaceable movable module configured to perform control of the electrical load based on first operation data stored in the movable module, and periodically backup the first operation data to the backup unit as second operation data. Furthermore, disclosed is an operating method for a control device of an electrical load and a control cabinet for an electrical load.

Abstract: The present disclosure relates to a communication method for a slave device in a master-slave communication structure, including: sending a boot report to the master device at power-up to report that the slave device is booting, wherein the boot report includes identity information for the slave device; receiving a heartbeat message from the master device; and if no heartbeat message is received from the master device for more than a predetermined time, the boot report is continuously sent to the master device at predetermined intervals until a feedback message of successful connection is received from the master device. Further, the present disclosure relates to a communication method for a communication system having a master-slave communication structure, a communication device for a slave device in a master-slave communication structure, and a communication system having a master-slave communication structure.

Abstract: Fluorescent adenosine derivatives that can be incorporated into the 5? end of transcribed RNA are disclosed. Adenosine derivatives have readily detectable cyanine dyes attached. Symmetric derivatives are disclosed that. The transcribed RNAs can be used in a variety of applications including nucleic acid detection and in the study of RNA structure and function. Methods of generating labeled RNAs from a biological sample also are disclosed.