3results about How to "Reduce self-heating" patented technology

The utility model provides a novel tandem type water-cooled resonant capacitor, comprising capacitor cores and copper electrodes, the upper and lower end faces of the capacitor cores are respectively welded with one copper electrode, the whole capacitor cores are cylindrical, the number of the capacitor cores is two, and the capacitor cores comprise a first copper foil, a second copper foil, a polypropylene optical film and a metallized polypropylene film. The first copper foil and the second copper foil are used as extraction electrodes, the metallized layer of the metallized polypropylene film is used as an intermediate electrode, the two layers of electrodes are separated by the metallized film, a polypropylene medium is arranged in a gap between the first copper foil and the second copper foil, and the capacitor core is formed by winding the copper foil, the polypropylene optical film and the metallized polypropylene film around the hard core rod. Spraying metal layers at two ends, welding the core and the copper electrodes together by using low-temperature soldering tin, and encapsulating a sealing material around the core; the copper electrode is provided with six water through holes, and the six holes are communicated through a connecting pipe to conduct internal water circulation. The power output and reliability of the capacitor are greatly improved, and the service life of the capacitor is greatly prolonged.

The application is suitable for the technical field of lightning arrester detection, and particularly relates to a lightning arrester detection method and a durable lightning arrester. The method comprises the following steps: acquiring a reference voltage and a reference current; acquiring first detection information in response to a first detection operation; determining an equivalent voltage based on the first detection information, the reference voltage and the reference current, performing a second detection operation based on the equivalent voltage, and acquiring second detection information; and determining maintenance information based on the second detection information. The lightning arrester detection method provided by the application can improve the temperature aging of the lightning arrester and improve the prediction accuracy of the maintenance cycle of the lightning arrester.

The application discloses a chip test probe, which comprises a chip probe, a needle tube and a temperature change inlay core. The needle tube with the built-in spiral spring is located in a needle sleeve, the tail of the needle head is located in the needle tube, the head of the needle head extends out of the needle tube, the tail of the needle head has a hollow wide-mouth tube with a diameter larger than the needle head, the hollow wide-mouth tube is composed of a plurality of strip petals arranged at intervals in the circumferential direction, a plurality of the strip petals enclose a storage cavity, and a line groove is arranged between the adjacent strip petals; the temperature change inlay core is embedded in the storage cavity of the hollow wide-mouth tube, one end of the spiral spring is in contact with the temperature change inlay core, and the other end is in contact with the tail of the needle tube. The chip test probe improves the sensitivity and accuracy of the detection signal, avoids the risk of electric spark, improves the safety hidden danger, further improves the stability of the detection data, and improves the consistency and comparability of the data.