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The Wang Jimei Award is established in ICEPE2011 in honor of Professor Wang Jimei. The award will be given for the best, most significant contribution presented during the International Conference on Electric Power Equipment (ICEPE). The recipient is selected by a vote of the international scientific committee of the ICEPE.
2011 1st International Conference on Electric Power Equipment - Switching Technology, ICEPE2011, takes place at the Xi'an Jiaotong University, Xi'an, China from Sunday 23 October to Thursday 27 October, 2011.
Power switching technology is mainly conducted with EMTP usually conducted in everywhere in the world, and a lot of experiment is conducted in the entire world in this stage. UHV project is studied in Japan because of the large demand of electric energy and one this kind of energy demand will occur in the densely populated area from large scale of transmission because of energy supply to the city...
This article reviewed the development of China high voltage switch industry for nearly 10 years in products and technological level, product designing methodologies, test verification, standard system, technological equipment, human resource management, R&D investment, and put forward the direction and development prospects in the future.
The development of EHV and UHV substation equipment have been proceeding to cope with the electricity demand expansion due to economic growth in the world. Simultaneously, the requirements for substation equipment compactness, cost reduction and efficiency also have been emphasized in the competitive market. This paper introduces several examples of recent developments on the compact and reliable...
The most critical transient a circuit breaker has to endure during its operation is the transient recovery voltage (TRV), initiated by the electric power system as a natural reaction on current interruption. For circuit breakers intended to operate in ultra-high voltage systems (with rated voltage above 800 kV), the realization of realistic transient recovery voltages in testing of these circuit breakers...
Series compensation technology can improve a transmission capacity and system stability of long-distance transmission lines. The objective of this paper is to design a test circuit for a 1100kV Ultra high voltage alternating-current series capacitor by-pass switch. In order to test the performance of the ultra high voltage Series Capacitor with by-pass switch, The author proposed according to IEC62271-109...
Sheath development dominates the initial stage of dielectric recovery process after interrupting a vacuum arc. The objective of this paper is to simulate sheath development after interrupting a vacuum arc considering collision between ions and background neutral metal vapor. We adopted Particle in Cell-Monte Carlo Collisions (PIC-MCC) method and a one-dimensional sheath model was developed. We assumed...
For the phenomena of UHV system high voltage and large capacity, circulating current in the shell and grounding network is relatively large. Under steady-state operation, shell will product a large loss of circulating current. Combined with the 1100 kV HGIS substations, according to the basic principles of electromagnetic transformers, GIS / HGIS shell equivalent circuit model is created and model...
Very fast transient over voltage (VFTO) is a kind of phenomenon which commonly occurs in gas insulated switchgear(GIS), and is also receiving more and more attention since it may endanger GIS internal insulation and secondary equipment. For this reason, combining with the VFTO phenomenon in GIS, this paper completed the numerical simulation calculation of VFTO transient process gone through by gas...
There are AC filters in the HVDC substation; it is possible that extremely high recovery voltage occurs when the AC filters are switched with circuit-breaker. So some special requirement is put forward to circuit-breaker, which is the circuit-breaker must break small capacitive current with very low probability of restrike and very high recovery voltage. In this paper, we analyze the electric intensity...
Multi-break in series is the measurement applied in the design of the extra high voltage vacuum circuit breakers (EHV VCBs). Because of the existence of the coupling and transient variation of the multi-physical fields, the multi-break in series is the uniformed large space-time field system covering the multiple physical parameters. And the insulation performance for each break in the series system...
The close-open time of extra-high voltage circuit breaker reclosing is an important parameter to ensure the second contact separation breaking capacity of “Close-Open” operation. According to statistics, the average close-open time of existing extra-high voltage SF6 breakers is about 23∼35ms, which is less than the standard time 50ms. The close and open commands are issued by auxiliary switch equipped...
On ultra-high-voltage (UHV) lines, the existence of secondary arc impact on the stable operation of system, so it is necessary to further study secondary arc. The paper adopts total harmonic distortion (THD) to judge the status of arc. First, the simulation model of secondary arc is established by ATP software. Then, faulted phase voltage and secondary arc are simulated in different close angle. Last,...
Vacuum interrupter technology is mature with respect to manufacturing quality, reliability and performance. One would expect that this leads to a convergence in terms of conception resulting in a dominating design principle. Yet still a large number of designs and dimensions coexist in the market. Numerical calculation techniques are used to optimise the geometry in order to reduce the overall dimension...
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