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Part.1 Given the capacity of the three-phase motor, find its rated current Formula: Divide the capacity by the number of kilovolts and multiply the quotient by the coefficient of seventy-six. Three-phase 220 kW motor , 3.5 amps. Commonly used 380 motors, one kilowatt and two amps. Low voltage 660 kW...
Before entering work in closed space pipelines and other places, the measurement of oxygen concentration is a necessary detection step to ensure the safety of personnel. Therefore, industrial pipeline oxygen content detectors are often used, because oxygen is necessary for our human body. If the oxy...
Heat flux, also known as heat flow density, refers to the heat energy passing through unit area per unit time. It is a directional vector. The unit in the International System of Units is W/ ㎡, that is, watts per square meter. Heat flux, sometimes called heat flux density or heat flow density, is th...
(1) Understand the variable frequency load type . The correct selection of the inverter is very critical for the normal operation of the control system. When selecting an inverter, you must fully understand the characteristics of the load driven by the inverter. In practice, people often divide prod...
With the development of IoT and 5G technology, the era of intelligent sensing and interconnection has arrived. Smart sensors are the front-end equipment of smart sensing and are the only way for China's industry to "grow from large to strong". Smart sensors refer to sensors that combine sensors with...
The high sealing of modern residences makes life more comfortable, private and energy-saving, but carbon dioxide and water vapor produced by human breathing; formaldehyde and MOM produced by building materials, furniture, curtains, etc.; dust produced by clothes and bedding; human body, The odors ge...
In recent years, my country has been vigorously adjusting its energy structure, and many cities have gradually replaced coal with clean and environmentally friendly natural gas to improve environmental pollution problems. With the continuous expansion of cities and the increase in population density...
The current global energy situation is becoming increasingly tense, and the development of the new energy industry has become an inevitable trend. As an emerging industry in the field of new energy, energy storage has already established energy storage power stations in some areas, which can improve...