Patent
Ultrasonic detection device for partial discharge of switchgear based on wireless network
About:
The article was published on 2013-04-03. It has received 21 citations till now. The article focuses on the topics: Switchgear & Partial discharge.read more
Citations
More filters
Patent
Electrical equipment local discharge positioning method and system
Xiong Jun,Li Guangmao,Yang Sen,Yang Jue,He Hao,Wu Xiaogui,Zhong Shaoquan,Zheng Fuli,Ao Changmin,Liu Yu,Huang Zhanbang +10 more
TL;DR: In this paper, the authors proposed an electrical equipment local discharge positioning method and system, which comprises the following steps of selecting one of a plurality of wireless sensors as a master clock and the other WSNs as slave clocks, and synchronizing the time of the master clocks and the slave clocks; controlling the master clock to transmit a synchronous measurement instruction.
Patent
Electric power switch cabinet wireless monitoring system
TL;DR: In this article, an electric power switch cabinet wireless monitoring system consisting of a personal computer (PC), a major node, and an auxiliary node is presented, where the PC is connected with the major node through recommended standard 232 (RS232) and the major nodes is connected to the auxiliary node through wireless network.
Patent
Universal wireless data acquisition device and method
Zhang Jian,Chen Shenghu +1 more
TL;DR: In this paper, the authors proposed a universal wireless data acquisition device and method, which consists of a data acquisition module, a data receiving module, and a host computer, where the receiving module is used for receiving data transmitted from the data acquisition, and the data is transmitted to the host computer through a serial port; the device comprises a single chip system as well as a transmitting circuit, a universal data acquisition interface, a power supply module and a power down protection module connected with the singlechip system.
Patent
Multi-channel ultrasonic detection-based gas insulated switchgear fault source location method
TL;DR: In this article, a multi-channel ultrasonic detection-based gas insulated switchgear fault source location method was proposed, where a plurality of ultrasonic detectors are mounted on the housing of a GIS to be detected according to a certain rule to monitor ultrasonic signals during a voltage-withstanding test or equipment operation and a wireless transmission module is then utilized to transmit a measurement result to a background system in a safe area.
Patent
Technology for improving insulation resistance of dry transformer iron core and online monitoring system for partial discharge
TL;DR: In this paper, a new processing technology for improving insulation resistance of a dry transformer iron core, which includes changing structure of an epoxy plate and adding an insulation material between the iron core and the ground, has the advantages of reducing partial discharge caused by magnetic flux leakage of the core or defective insulation.
References
More filters
Patent
Partial discharge monitoring system for transformers
TL;DR: In this article, an apparatus for detecting partial discharge in on-line high voltage electrical equipment containing a dielectric, such as high voltage transformers, is described. But this apparatus includes an ultrasonic transducer and an annular capacitive plate for detecting, respectively, the ultrasonic pulse and the radio frequency pulse generated by the occurrence of a partial discharge.
Patent
System for detecting and managing partial discharge of switch cabinet on-line
Dugui Wu,Heng Mao,Zhixin Tie +2 more
TL;DR: In this paper, the authors proposed a system for detecting and managing the partial discharge of a switch cabinet on-line, which consists of a sensor unit, a data acquisition device, and a background computer.
Patent
Live testing apparatus for local discharge based on ultrasound assistance
TL;DR: In this paper, a detection device for partial discharge and electrification based on the ultrasonic assistance, whose main technical characteristics are that the invention is composed of a sensor circuit, a signal conditioning unit, a data acquisition card and an industrial-controlled machine set.
Patent
Portable electric apparatus local discharging ultrasonic detector
TL;DR: In this article, the authors proposed a portable electrical equipment local discharge ultrasonic detector, consisting of a housing, an ultrasonic sensor, a preposing amplifier, a main amplifier, an A/D high speed acquisition board, an MCU application board, a data memory card and a photoelectric display circuit.