Abstract: According to embodiments of the present invention, a device releasably couplable to an electric asset is provided. The device includes a sensor configured to detect partial discharge from the electric asset and generate a pulsed signal representative of a presence or absence of the detected partial discharge; and a time-domain based RFID tag electrically coupled to the sensor. The time domain-based RFID tag is configured to provide an ID code uniquely representative of a location of the device when coupled to the electric asset. The device is configured to generate, upon interrogation by an external interrogator, a backscattered signal including the ID code and the pulsed signal. The generated backscattered signal is to be read by an external reader. According to further embodiments, a method for obtaining identification of at least one electric asset and information on partial discharge experienced by the at least one electric asset is also provided.

Abstract: A sample analyzer includes a first track, a second track, a reaction wheel, an electrolyte analyzing mechanism, a first sample dispensing mechanism, and a second sample dispensing mechanism. In the present disclosure, the first sample delivery mechanism independently transfers the samples from the first track to the reaction vessels carried by the reaction wheel, and the second sample delivery mechanism independently transfers the samples from the second track to the detection vessels carried by the electrolyte detection mechanism.

Abstract: According to embodiments of the present invention, a device releasably couplable to an electric asset is provided. The device includes a sensor configured to detect partial discharge from the electric asset and generate a pulsed signal representative of a presence or absence of the detected partial discharge; and a time-domain based RFID tag electrically coupled to the sensor. The time domain-based RFID tag is configured to provide an ID code uniquely representative of a location of the device when coupled to the electric asset. The device is configured to generate, upon interrogation by an external interrogator, a backscattered signal including the ID code and the pulsed signal. The generated backscattered signal is to be read by an external reader. According to further embodiments, a method for obtaining identification of at least one electric asset and information on partial discharge experienced by the at least one electric asset is also provided.

Abstract: A four valve disc frictionless ball valve includes a spherical valve core assembly, wherein the spherical valve core assembly includes a wedge-shaped valve core. A closed-position valve disc is respectively installed on a pair of closed-position wedge-shaped sides. A closed-position guide key is respectively arranged at the middle positions of the pair of closed-position wedge-shaped sides along an axial direction. A closed-position guide groove is arranged on each closed-position valve disc along the axial direction. An open-position valve disc is respectively installed on a pair of open-position wedge-shaped sides. An open-position guide key is respectively arranged at the middle positions of the pair of open-position wedge-shaped sides along the axial direction. An open-position guide groove is arranged on each open-position valve disc along the axial direction.

Abstract: A four valve disc frictionless ball valve includes a spherical valve core assembly, wherein the spherical valve core assembly includes a wedge-shaped valve core. A closed-position valve disc is respectively installed on a pair of closed-position wedge-shaped sides. A closed-position guide key is respectively arranged at the middle positions of the pair of closed-position wedge-shaped sides along an axial direction. A closed-position guide groove is arranged on each closed-position valve disc along the axial direction. An open-position valve disc is respectively installed on a pair of open-position wedge-shaped sides. An open-position guide key is respectively arranged at the middle positions of the pair of open-position wedge-shaped sides along the axial direction. An open-position guide groove is arranged on each open-position valve disc along the axial direction.