Brushless HXW generator

1. Product Overview

       The HXW series brushless generators (divided into land and marine) have insulation grades including B, E, F, and H. The generator specifications range from 3-1000KW and are equipped with a universal transition interface. They can match various prime movers and can adapt to various usage conditions and harsh environments. The product has been well received by users for its reliable performance and reasonable price.

2. Product failure

1. No indication of the voltmeter

1. The generator does not generate electricity according to item 2

2. Check the wiring and fuse when the voltmeter circuit is not connected, and replace it with new products

3. The voltmeter is damaged and replaced with new products

2. Can't generate electricity

1. Wiring errors are checked and corrected according to the line

2. The excitation winding of the main generator or exciter is incorrectly connected, resulting in an incorrect polarity; the polarity of the excitation current of the excitation machine does not match the polarity of the permanent magnet often occurs when the excitation winding is replaced due to wiring errors, so it should be checked and corrected.

3. The silicon rectifier element breaks down short circuit, and the forward and reverse directions are conducted by a universal multimeter to check the forward and reverse resistance of the rectifier element, and replace the damaged component.

3. No-load voltage is too bottom (for example: line voltage is only 100V)

1. The excitation winding of the excitation machine is broken, replace the disconnected coil or connect the coil circuit

2. The excitation winding of the main generator is severely short-circuited. The excitation winding of the excitation winding is very high. The excitation winding of the main generator has severe heat generation, the vibration increases, the DC resistance of the excitation winding is much smaller than the normal value, replace the short-circuit coil

3. At the rated speed of the automatic voltage regulator, check whether the output DC current value of the automatic voltage regulator is equal to the factory no-load characteristics of the motor, and check the automatic voltage regulator.

III. Excitation principle

　　Brushless excitation is to install the main circuit of excitation rectification on the generator rotor shaft, which means to install an AC exciter on the shaft. The DC excitation winding of this alternator is fixed. The AC armature winding, rectifier and the host excitation winding form a coaxial rotor whole. The external supply of excitation current to the AC exciter. The electricity emitted by the AC exciter is rectified by the rotary rectifier and then supplied to the host excitation winding. In this way, the host voltage can be changed by controlling the excitation current of the excitation machine.

4. Company Profile

　　Jiangsu Haixing Power Engineering Co., Ltd., located in Guxi Industrial Park, Taixing City, Jiangsu Province, is a professional manufacturer focusing on the design, installation, construction and technical services of environmental governance projects, as well as the production, sales and maintenance of generator sets. The company mainly produces Dongfeng Fengshen generator sets, Dongfeng Cummins generator sets, Dongfeng Renault generator sets and Volvo generator sets, among which Dongfeng Cummins generator sets are sold at home and abroad.

　　Since its establishment, the company has been focusing on the technical research and development of generator sets, expanding the production scale of generator sets, improving generator set-related services, and gradually developing into a new modern private enterprise in Taizhou City. The company has complete organization and management system, rich human resources, advanced technology research and development and process equipment strength, and complete testing equipment. The 'Haixing' brand 20-2000Kw diesel generator sets produced are widely used in ships, petrochemicals, highways, railways, water conservancy hubs, municipal engineering, postal and telecommunications, industrial and mining enterprises, hotels and other fields.

5. Main parameters of brushless HXW generator