DG (Diesel Generator) diesel generators are a widely known phrase in the contemporary world. These generators produce electricity by using diesel as a fuel source. The type of generator is preferred in construction sites, remote regions, or even as backup power sources during grid shutdowns. DG diesel generators are equipped with a diesel engine connected to an alternator. They usually require periodic maintenance of the engine, fuel system, and diesel engine to ensure maximum efficiency at all times. Bad diesel generators usually have low-quality overload protection and voltage regulation systems that can damage electrical equipment