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The reliability of UHV transmission system is important to the power grid and live working technology is a key method to cope with line components defects or fault without outage plan. In order to satisfy the design requirement of the UHV compact transmission lines, and to provide parameters for live line maintenance on those transmission lines, the air gaps switching impulse voltage discharge tests...
The safety operation of UHV transmission lines is important to the power grid and live working technology is a key method to cope with line components defects or fault without outage plan. In order to ensure the safety of live line workers and electrical equipment, the workers entering into equal-potential must select proper accessing path and satisfy the requirement of minimum complex gaps. Live...
Along with the construction and development of UHV project, the steel tubular towers have been widely used in projects of UHV transmission lines. In order to ensure the safety of live working on UHV steel tubular tower transmission lines, this article compares the electric field distributions around UHV steel tubular tower and angle-steel tower through simulating calculation; obtained the impulse...
The EHV AC and UHV DC hybrid transmission lines on one tower differs from the traditional 500kV transmission lines, the tower width which paralleled to the 500kV line was one more time than the single circuit 500kV tower. The ion flow from 800kV transmission line spread to the air gap of the lower 500kV lines and may effect on the air gap insulation performance. In order to provide technical support...
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