Power station pump storage unit rotor magnetic pole ground connection processing method

Abstract

The invention relates to a power station pump storage unit rotor magnetic pole ground connection processing method. The power station pump storage unit rotor magnetic pole ground connection processing method comprises the following steps of (1) searching for a fault point, wherein the voltage added at slip rings is measured through a portable lamp via variable low voltage, and a fault part is determined by measuring the voltage to ground of the positive slip ring and the negative slip ring; after the fault part is determined, the voltage to ground of the magnetic poles is measured, and when it is detected that the voltage to ground of one certain magnetic pole is nearly zero, it indicates that the magnetic pole is the fault magnetic pole, the voltage to ground of all turns of the magnetic pole is measured, and the turn with the voltage to ground being zero is the fault point; (2) conducting processing, wherein an air pressure spray gun and an electromechanical cleaning agent are combined to spray and clean the fault point, and a carbonization forming channel is determined; an epoxy plate is manufactured and bonded with 400-mesh abrasive paper and then stretches to the shroud carbonized channel in the middle of the magnetic pole, the carbonized channel is removed, and after thorough cleaning is conducted again, the processed part is coated with 1361 insulation paint. The voltmeter method is adopted for searching, efficiency is high, intensity and cost are low, and certain application and popularization value is achieved.

Description

Technical field [0001] The present invention involves a maintenance method of a power storage capacity storage unit, that is, the power station pumping storage unit rotor magnetic pole grounding method. Background technique [0002] In existing technologies, pumping storage units have developed rapidly in China. Because its speed is higher than the speed of conventional units and the operating conditions are frequent, the rotor not only needs to bear huge centrifugal power, but also needs to bear the workers.The vibration force generated during the conversion process, which put forward higher requirements for the process of all aspects of the crew.However, due to the conditions of all aspects, such as some huge structures can only be decomposed and processed after processing, and the level of personnel skills is uneven, which leads to some defects left on the process and structure formulation during the installation of the unit.Especially in the mechanical part, as the operating ...

AI Technical Summary

Problems solved by technology

However, this processing method has the following problems for the unit to which the equipment belongs: the dismantling of the equipment during the replacement process is time-consuming and laborious, which often causes delays in the defect processing period, and will cause great losses in terms of manpower, material resources, and time.

The workload of the whole work is very heavy and the time required is relatively long