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What are the common powers of motors?
Release time：
2024-07-24
Author:
作者
Source:
设计云
Common motor powers include: three-phase 220 motors, 3.5 amperes per kilowatt. Commonly used 380 motors, 2 amperes per kilowatt. Low-voltage 660 motors, 1.2 amperes per kilowatt. High-voltage 3,000-volt motors, 1 ampere per kilowatt. High-voltage 6,000-volt motors, 8 kilowatts per ampere.
Electric machinery (English: Electric machinery, commonly known as "motor") refers to an electromagnetic device that realizes the conversion or transmission of electrical energy based on the law of electromagnetic induction. It is represented by the letter M (D in the old standard) in the circuit. Its main function is to generate driving torque as a power source for electrical appliances or various machines. Generators are represented by the letter G in the circuit. Its main function is to convert mechanical energy into electrical energy. Currently, it is commonly used to drive the rotor of the generator to generate electricity by using heat energy, water energy, etc.
Power is a physical quantity that represents the speed of work. The work done per unit time is called power, represented by P. Therefore, power is equal to the scalar product of the force and the speed of the object's force point. It refers to the work done by an object per unit time, that is, power is a physical quantity that represents the speed of work. Power can be divided into electrical power, mechanical power, etc. Therefore, the calculation formula is also different. The formula for calculating electrical power is: P=W/t =UI. According to Ohm's law, substituting U=IR into P=UI, we can also get: P=I*IR=(U*U)/R
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