Lenovo (beijing) Limited

State Grid Jibei Electric Power Company Limited

Beijing Guodian Tong Network Technology Co., Ltd

State Grid Qinhuangdao Power Supply Company

Lenovo Limited

Xinling Wu

Yu Zheng

Zhiqiang He

Wei Zhu

Dong Liang

Hongtao Ma

Dan Wu

Jiangwei Zhong

Xiaoling Zhu

Jian Jin

Aimei Yan

Man Leng

Yaxin Liu

Lili Zhang

Tiejun Zhao

Yi Yuan

Xuemei Wu

Yue Yu

Jian Zhu

Lingchen Sun

Weiyue Zhou

Sining Wang

Chuanbo Tian

Ke Qiao

Jianguang Wu

Jun Zhi

Zhiqian Ma

Yongrong Wang

Shen Liu

Shuhan Zhang

Xinsheng Huang

A ground fault locating method for a power distribution network includes: monitoring each phase line of three phase distribution lines, and in the event of occurrence of waves with fault features, performing wave recording to obtain phase line record files; combining the record files corresponding to each of the three phase lines to obtain fault record files; and synthesizing the fault record files to form a transient record file, determining a fault location according to a wave having a maximum change in wave amplitude between two points in the transient record file, and displaying the fault location in a wiring diagram. The ground fault locating method for a power distribution network can significantly improve accuracy of single-phase ground fault detection.

Ground position of the ground fault method for power distribution network, system, and storage medium

The present invention provides a mobile communication terminal comprising a wireless communication module and a host, wherein the wireless communication module further comprises a first interface connector and a module case; the host reserves positions for the insertion of the wireless communication module, and further comprises a second interface connector corresponding to the first interface connector positioned on the wireless communication module; the wireless communication module is connected to the host via the first interface connector and the second interface connector. The present invention also discloses a wireless communication module which is integrated with a SIM card unit. The present invention can reduce the waste in development and application, and shorten the development period of mobile communication terminals. Thus, the wireless communication module interface is simplified so that the wireless communication module interface is easy to use.

Mobile communication terminal and wireless communication module thereof

Growing community of inventors

Beijing, China

Xinling Wu