Improved structure of generator main lead-out wire of tubular hydropower station

Abstract

The invention discloses an improved structure of a generator main lead-out wire of a tubular hydropower station. A reserved busbar groove is formed between a water turbine shaft and a generator hanging hole, a current transformer and an installation base are installed in the reserved busbar groove, the installation base is fixed on the bottom surface of the reserved busbar groove through expandingpipe bolts, a stator copper bar arranged in the water turbine shaft is drawn upwards through a power cable, a protective net is arranged outside the power cable, and a prefabricated concrete cover plate is arranged at the top of the reserved busbar groove. According to the scheme of the invention, the lead-out wire is led from the narrow space on the water turbine shaft side to the open space inthe generator hanging hole, so that the design space of electrical primary wiring is increased, the busbar connection distance is shortened, and the installation and disassembly of equipment are facilitated; and the reserved busbar groove replaces the high-voltage power distribution cabinet, so that the safety is ensured, and the cost is also reduced.

Description

technical field [0001] The invention relates to the technical field of installation of power generation equipment of a tubular hydropower station, in particular to an improved structure of a main lead-out line of a generator of a tubular hydropower station. Background technique [0002] The main lead-out line of the generator of the tubular hydropower station is led to the downstream side through the stator copper bar in the bulb body, and then lead to the ground from the turbine shaft. The lead-out line is connected to the busbar through the high-voltage power distribution cabinet, and a current transformer needs to be installed in the power distribution cabinet . This outlet method has obvious defects: first, the main outlet wire and its accessories occupy a certain workshop area, which increases the difficulty of the arrangement of the electrical busbar. Second, a high-voltage power distribution cabinet is required to install copper bars and current transformers. High-vo...

AI Technical Summary

Problems solved by technology

This outlet method has obvious defects: first, the main outlet wire and its accessories occupy a certain area of ​​the factory building, which increases the difficulty of the arrangement of the electrical busbar

Second, a high-voltage power distribution cabinet is required to install copper bars and current transformers. The high-voltage equipment is installed on the ground of the operation layer of the power station, which is neither safe nor beautiful, and increases the cost of equipment

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