This paper introduces the developing trend about the voltage of power supply, the junction style of distribution net and the selection of distribution line in developed town district, it also introduces the selection of electric apparatus and the junction style at distributing station.
The paper carries on the research of network topology, algorithm of state estimation and detection and identification of bad data, and applies the method of tracking search to network topology, semi-dynamic optimization to node numbering, algorithm of weighted least-squares with constraints to state estimation and rN to detection and identification of bad data.
The paper carries on the research of network topology, algorithm of state estimation and detection and identification of bad data, and applies the method of tracking search to network topology, semi-dynamic optimization to node numbering, algorithm of weighted least-squares with constraints to stateestimation and r_N to detection and identification of bad data.
The article introduces the connection type of the unit auxiliary power system of 2× 350 Units in Jiujiang power plant phase Ⅲ project, and the requirements and the basic principles to be followed for DCS to control the electric system;
This paper presents that D,yn11 is recommended as the connection mode of dis-tribution transformer in distribution system with three-phase unbalanced loads,and Y,yn0 is not inthe electric design standards modified in recent years. The performance comparison between D,yn11and Y,yn0 under the operating condition of no load,unbalanced load,single-phase short are made. The D,yn11 is better than Y,yn0.
Non-complete phases protection startup failure protection of the generator circuit breaker to open the 500 kV super high voltage circuit breakers is the basic configuration and combination of generator-transformer-line connection manner.
This subdimension represents the actual mode of connection between the users and the server.
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This paper introduces the principle of a new busbar protection used in HV or EHV power systems. In case of the possible reverse current during an internal fault on 3/2C,B.busbar and other busbars, common phase-comparison busbar protection will fail to operate. This paper describes the principle of a new percentage phase-comparison busbar protection which can r-eliably operate in spite of the existence of reverse current.In this paper, theoretical analysis is presented, and the practical method to perform th...
This paper presents a new type of auto-transformer electric traction supply system for double-line electrified railways. Compared with those used abroad, it has a series of its own advantages in respect to the technical behaviour and overall economic benefits.
This paper decribes the new developments of a multiple cycloconverter with a very simple control system. The output frequencies can be adjusted smoothly. The first time adopting the multiple connection in the main circuit improves the waveforms of the output voltage and current, and affords more reliability. This cycloconverter is also provided with a novel detector of the output current polarity, which is simpler than other known methods.