Ultra-thin robot for inspection of electric generators. Free Technical Library News

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Super Slim Generator Inspection Robot

05.02.2017

Mitsubishi Electric has announced the creation of a robot with a thickness of only 19,9 mm, designed to inspect power plant generators. The thin thickness allows the robot to fit into the gap between the stator and the rotor, eliminating the need to extract the latter. Thus, the robot significantly reduces the time and cost of testing, allowing you to increase the reliability and uptime of generators.

According to Mitsubishi Electric, it takes approximately 34 days to perform a routine generator inspection every four years. In many ways, this period is due to the need to remove the rotor. With the use of a robot, the inspection period is said to be reduced to six days. In addition, due to the high accuracy of the inspection, it is possible to increase the interval between inspections and keep fewer spare parts in stock.

The new robot is able to carefully check the condition of the generator, including the quality of the insulation. The manufacturer notes that the mechanism that ensures the movement of the robot is characterized by a low level of vibration, due to which the accuracy of measurements is increased.

It remains to add that the thickness of conventional inspection robots is about 30 mm, which prevents them from passing into the gap between the stator and rotor of approximately 30% of Mitsubishi Electric generators.

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