Nebula Asia (hong Kong) Limited

Shanghai United Imaging Healthcare Co., Ltd.

Shanghai Roye Electric Co., Ltd.

Intel Corporation

General Electric Renovables Espana, S.l.

Wei Zheng

Jun Li

Kai Yang

Shitao Liu

Rong Li

Longzi Yang

Min Chang

Tiexin Xia

Zhengcao Guo

Xiaobeng Huang

Lejun Zhu

Jianrong Chen

Yuman Zhang

Yanbing Zhu

Daijie Jiang

Zhenyu Jin

Haiyong Jing

Claus Johannes Kruempelbeck

The present disclosure relates to systems and methods for determining true coincidence events. The systems and methods may determine original coincidence events based on time of occurrence of a plurality of single events. The systems and methods may also determine random coincidence events by processing the plurality of single events based on cycle offsets of detector units that detect the plurality of single events. A difference of any two cycle offsets may be greater than a predetermined coincidence window width. The systems and methods may then determine the true coincidence events based on the original coincidence events and the random coincidence events.

Systems and methods for determining true coincidence events

The present disclosure provides a method for modifying a gas density relay and a gas density relay having an online self-check function and a check method therefor. The gas density relay having an online self-check function is used for high-voltage and medium-voltage electrical devices, and includes a gas density relay body, a gas density detection sensor, a gas path blocking pressure regulation mechanism, an online check contact signal sampling unit and an intelligent control unit. The intelligent control unit controls a blocking member of the gas path blocking pressure regulation mechanism to move, so as to block a gas path between a first interface and a second interface. Moreover, a volume of a sealed cavity changes, a gas pressure of the gas density relay body slowly falls, thereby generating contact action, the contact action is transmitted to the intelligent control unit by means of the online check contact signal sampling unit, and the intelligent control unit detects an alarm and/or blocking contact signal action value and/or return value according to a density value during the contact action, such that check can be completed without maintenance personnel on site, and the reliability and efficiency of a power grid are greatly improved while cost is lowered.

Method for modifying gas density relay, and gas density relay having online self-checking function and checking method therefor

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Shanghai, China

Wei Zheng