State Grid Chongqing Electric Power Co. Electric Power Research Institute

State Grid Corporation of China (sgcc)

State Grid Corporation of China

Chongqing Electric Power Research Institute

State Grid Chongqing Electric Power Company

Mianyang Gocreat Technology Co., Ltd.

Xiaorui Hu

Xingzhe Hou

Guojun He

Ke Zheng

Yongxiang Liu

Hongliang Sun

Xiyang Ou

Jianjun He

Yi Wang

Gang Chen

Jing Zhang

Zhi Li

Lin Gong

Huicai Wang

Qiang Yao

Yulong Miao

Li Zhou

Tingting Xu

Chao Tian

Bin Zhu

Yi Long

Ni Qiu

Jiju Zhang

Hua Wu

Xingzhi Liu

Linxia Li

Quan Zhou

Tianlian Hu

Liankai Chen

Huang Tang

Full Yang

Wenxin Peng

Songnong Li

Luwen Xu

Jing Ji

Fangqing Gao

Anxin Zou

Wenli Chen

Yingying Cheng

Huaxiao Yang

Ji Xiao

Jianming Hu

Jun Ye

Jing Liu

Jian Wu

Provided are a voltage measurement method and apparatus. The method includes following steps: a number j of height values are selected in a vertical direction of a transmission line, a number m of sensors used for measuring, according to a Stark effect, electric field strength of a corresponding spatial position are arranged in sequence at each of j spatial positions of the j heights from the ground, electric field strength values of the corresponding spatial position are measured through the m sensors respectively, and an electric field strength average value of the corresponding spatial position is calculated according to the acquired m electric field strength values, where j and m are positive integers, and the j spatial positions are below the transmission line; a voltage of the transmission line is calculated according to j electric field strength average values.

Voltage measurement method and apparatus

A method for charging an electric vehicle is provided. The method includes that a mobile charging apparatus transmits its own status information to a centralized battery distribution station; the centralized battery distribution station determines, according to the received status information, whether power of a battery of the mobile charging apparatus is less than a first threshold; if the power of the battery of the mobile charging apparatus is less than the first threshold, the battery of the mobile charging apparatus is processed so that the power of the battery of the mobile charging apparatus is greater than a second threshold, wherein the second threshold is greater than the first threshold; and if the power of the battery of the mobile charging apparatus is not less than the first threshold, the mobile charging apparatus charges the electric vehicle.

Mobile charging apparatus and method for charging an electric vehicle

A method for controlling structure-borne noise based on a combined-type vibration isolation device includes the following steps: S: determining a combined-type vibration isolation device as required according to parameters of a mechanical device to be isolated, and installing the combined-type vibration isolation device on a horizontal bearing surface; S: vertically placing the mechanical device to be isolated on the combined-type vibration isolation device; S: adjusting a mass of an intermediate balance weight block of the combined-type vibration isolation device; and S: adjusting an inherent frequency of the combined-type vibration isolation device to be lower than a structural vibration sound transmission frequency generated in the operation of the mechanical device to be isolated.

Method for controlling structural acoustic transmission on basis of combined-type vibration isolation device

A combined-type intelligent terminal wiring device and a plug device are provided. The wiring device includes a top wiring terminal board, a bottom wiring terminal board and a combined-type socket. An interior of each terminal of the combined-type socket has a spring-leaf structure, and each spring leaf includes an upper spring leaf and a lower spring leaf which are conductively connected via a contact surface. The top wiring terminal board has one end configured to connect the upper spring leaf, and the bottom wiring terminal board has one end configured to connect the lower spring leaf. The plug device includes a plug and a wiring terminal, the plug is located at a front end of the plug device and is a conductive metallic sheet, and the wiring terminal is located at a rear end of the plug device and has one end connected to the conductive metallic sheet.

Composite intelligent terminal wiring device and plug device

A holographic detection device for a content of a gas in a GIS switch includes a laser and a data process system. The laser includes a laser emitter and a laser receiver which are fixed at a sampling port of the GIS switch and connected with the data process system. A holographic detection method for a content of a gas in a GIS switch includes emitting a laser beam towards the inside of the GIS switch; receiving the laser beam from the inside of the GIS switch, and calculating a content of hydrogen fluoride gas inside the GIS switch according to an intensity of the emitted laser beam and an intensity of the received laser beam. Since the laser beam goes through the inside of the GIS switch, there is a small error in the detection result, which thus can reflect a real state inside the GIS switch.

Holographic detection device and method for content of gas in GIS switch

The present application provides a power line communications system and method. The system comprises a power line network, a sending apparatus, and a receiving apparatus. The receiving apparatus comprises at least two PLC modems connected through a power line link. The sending apparatus sends a signal to a target PLC modem in the receiving apparatus through a power line network. The target PLC modem is at least one PLC modem in the receiving apparatus. The PLC modems in the receiving apparatus simultaneously receive a signal, the PLC modems except the target PLC modem respectively send the received signal to the target PLC modem through a wireless link, and the target PLC modem restores the signal sent by the sending apparatus according to the signal received through the power line network and the signal received through the wireless link. According to the power line communications system and method provided in the present application, the signal transmission quality is improved, and the data transmission rate and the system reliability are improved.

Power line communications system and method

Robot for testing electric energy meter

Growing community of inventors

Chongqing, China

Xiaorui Hu