High-power medium-speed generator

Abstract

The invention discloses a high-power medium-speed generator. The generator comprises a motor body, and the motor body comprises a rotating shaft, a front bearing, a front end cover, a fan, a base, a stator winding, a stator core, a rotor core with a winding, a box body combination group, an exciter stator, an exciter rotor, a rear end cover and a rear bearing; and the base is of a square structure formed by welding an upper cover plate, ribs, side cover plates, a front end plate, an air deflector, a supporting plate, a rear end plate, a lower cover plate, an inclined cover plate and a bottom foot plate, the front end cover is formed by connecting a front end cover blank, a front bearing sleeve and an insulating pad through bolts and then machining, and the front end cover has an insulating function and can effectively prevent shaft current. The power of the generator body is 1300-1800 kW, the number of poles is eight, the rotating speed is 750 r / min, the power of the generator is large, the rotating speed is low, the load capacity is high, the size is small, the weight is light, and the power-to-weight ratio is high.

Description

Technical field[0001]The present invention relates to a generator, and more particularly to a large power medium speed generator.Background technique[0002]The medium-speed diesel engine is small wear, low failure, long life, reliable operation, especially the burning heavy oil, is very economical, so it has been the main model of large ships, so it is better to match the medium-speed generator with it. market expectation. However, the domestic traditional medium-speed generator is large, the power weight is low, the start and load performance are poor, and the ship generally requires the volume and weight of the use of equipment, so ship enterprises usually use foreign brands of medium-speed generators. However, the price of medium-speed generators and their accessories in foreign brands are very expensive. How to solve the problem of domestic traditional medium-speed generators, and break the monopoly state of foreign brands, this patent is designed to solve these problems.Inventiv...

AI Technical Summary

Problems solved by technology

However, the traditional domestic medium-speed generators are large in size, low in power-to-weight ratio, and have poor start-up and load-carrying performance. At the same time, ships generally have requirements for the volume and weight of the equipment used, so ship companies usually use medium-speed generators of foreign brands. , but foreign brands of medium-speed generators and their accessories are very expensive

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