Differences in Voltage Classification of Industrial Generators Part 1

High, medium, and low voltage are the most commonly used terms when discussing voltage classification for industrial generators. From an international perspective, these classifications and ranges vary depending on where you live. For example, in the United States, the National Electrical Code (NEC) and the National Electrical Manufacturers Association (NEMA) have guidelines and standards covering all voltage levels. The National Standards Institute (ANSI) is responsible for overseeing the creation, publication, and use of thousands of guidelines and standards that affect businesses. Every industry complies with applicable regulations.

The Electrical Engineering Portal (EEP) provides a detailed classification of ANSI standard C84.1-1989. This document categorizes voltage into five categories. These categories can be combined into the following categories:

High voltage, ultra-high voltage, and ultra-high voltage (UHV) -115000 to 1100000 volts AC

Medium Voltage (MV) -2400 to 69000 volts AC

Low Voltage (LV) -240 to 600 volts AC

The NEC voltage standards are as follows:

High voltage distribution -1000 to 4160 volts

Medium distribution -50 to 1000 volts

Low voltage distribution -0 to 49 volts

The above list illustrates the classification of voltage level changes based on different management agencies. According to relevant regulations, generators below or equal to 600 volts are considered medium voltage generators, while generators above 600 volts are considered high voltage generators. Generators that generate 4160 volts are common in many large motor industries that require high voltage. The backup generator provides voltage to the independent power grid.

The usually stored generator voltages are 4160VAC, 480VAC, 12470VAC, and 13800VAC. When industrial facilities lose power, the backup generator supplies power to the distribution and control panel to continue operation. The higher voltage generated by the generator is reduced through a transformer. The following content provides information about each type of information.

Attention:

The content in this article is for reference only. When designing and operating electrical equipment, it is essential to consult professional certified personnel. Do not work on live circuits or perform tasks that you are not competent for.

Since 1982, Dingbo 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, Dingbo 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, Dingbo was awarded the Certificate of Qualified Supplier of China Nuclear Power Group. Dingbo Generator has been cooperating with Shangchai Power for many years. In 2009, it became the OEM partner of Shangchai Power in China. Dingbo 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.