Main Damage Causes of AVR of Volvo Diesel Generator

AVR is used to detect the output voltage of Volvo diesel generator. When the value is less than the set value, increase the excitation current to increase the output voltage of Volvo diesel generator; However, when the output voltage is lower than the set value, the excitation current will be reduced to reduce the output voltage of the Volvo diesel generator, but sometimes it will be damaged. Therefore, the following is the main damage causes of the AVR of the Volvo diesel generator.

In terms of excluding the possibility of damage caused by the quality of the original electrical components themselves, the working frequency variation of the main circuit and the comparative control circuit is the largest in the entire AVR circuit; The rectifier bridge in the main circuit and the transistor in the comparison circuit fluctuate more frequently, which accounts for over 90% of the overall AVR damage rate.

In view of the fact that the AVR on the imported Volvo diesel generator is not to be replaced when the spare parts are damaged, we mainly analyze the causes of AVR damage on the diesel generator. It is the most important to avoid AVR damage as far as possible. As long as the use is appropriate, the service life of AVR can be improved. The more stable the voltage of Volvo diesel generator is, the smaller the change frequency in AVR is, The smaller the switching action of the transistors in the comparison circuit, the lower the probability of AVR damage.

The output load is relatively stable. The smaller the frequency of variation within the AVR, the smaller the switching action of the transistor in the circuit. The less likely the AVR is to be damaged, and the more stable the speed of the diesel engine. The current has a smaller impact on the oscillation of the AVR.

The main reason for AVR damage is the significant difference between frequent "traveling blocks" and overloaded three-phase loads; Therefore, Volvo diesel generator with E, F and C fuel systems will be more reliable due to the small frequency variation of AVR.

Since 1982, Starlight Generator has been a generator set manufacturer qualified by the "National Internal Combustion Engine Quality Supervision and Inspection Center". The product quality has passed the IS09001 quality system standard certification. And obtained the qualification certificate for self-operated import and export. Over the years, starlight units have been widely used in all walks of life, and have won the network access qualification of the Ministry of Information Industry, the network access qualification of the Ministry of Radio and Television, the network access qualification of CNPC, the network access qualification of China Mobile, and the manufacturing qualification of marine units. In 2016, Starlight was awarded the Certificate of Qualified Supplier of China Nuclear Power Group. Starlight Generator has been cooperating with Shangchai Power for many years. In 2009, it became the OEM partner of Shangchai Power in China. Starlight generator VOLVO unit ranks the top three in the Asia-Pacific sales volume, and is the core OEM partner of Sweden Volvo in the Asia-Pacific region. If any question please feel free to visit our website https://www.dieselgeneratortech.com/ or send email to sales@dieselgeneratortech.com.