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Xing P.,Xian Xd Power Systems | Su C.-Q.,Xian Jiaotong University | Lin G.-S.,Zigong Power Electrical Bureau | Ding W.-D.,Xian Jiaotong University
Gaoya Dianqi/High Voltage Apparatus | Year: 2011

A 500 kV precision resistor divider for impulse voltage measurement is developed, which can be used for measuring full wave and front-chopped impulse voltage. The divider is simulated through ATP, of which the response characteristic is tested by using a step voltage source. The influencing factors on the response characteristic of the divider are studied, such as damping resistance, high voltage arm's resistance and height above ground. The partial response time of the divider is 7.4 ns, and the overshoot is 18.8%. Source


Xing P.,Xian Xd Power Systems | Zhu Y.-D.,Xian Jiaotong University | Lin G.-S.,Zigong Power Electrical Bureau | Li F.,Xian Jiaotong University | Ding W.-D.,Xian Jiaotong University
Gaoya Dianqi/High Voltage Apparatus | Year: 2012

One kind of control system of impulse voltage generator, composed of PLC, IPC, stepping motor and the optical fiber communication system, have been illustrated in detail. The system used PLC as the core control unit, realizing the random settings of the test times and test voltage value and used the optical fiber communication system to transmit control signal and voltage monitoring signals and weaken the interference of the electromagnetic field on the control signal. At the same time, the system used OPC communication mode between IPC and PLC to achieve data transmission. Practice has proven that the structure of control system is simple, convenient, high reliable and accurate, and can meet the needs of the engineering application. Source

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