What are the differences and connections between distribution cabinets, power cabinets, control cabinets, and frequency conversion cabinets?
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The questioner studies chemistry and is now working on engineering projects; they don’t quite understand these cabinets, and no systematic and reasonable explanation could be found on Baidu. I would like to ask the experts at Haichuan about the functions of distribution cabinets, power cabinets, control cabinets, and frequency conversion cabinets; why they are needed; the hierarchical relationships between these cabinets; the connection processes (for example, what cabinet is at the higher level and what one is at the lower level); as well as their differences and connections I hope the experts will be kind enough to share their insights!
Thank you for your support: handshake
Or if there is any standard or source that contains information on this topic, please let me know so I can look it up myself
You can @sdscj0122; he is an expert in this field!
The power distribution cabinet is similar to the power cabinet; both are used to supply power, acting like the thickest power cable located at the back of a computer’s chassis. The control cabinet is a cabinet in which control devices perform functions such as starting/stopping, speed regulation, and forward/reverse rotation; it’s akin to a computer’s keyboard and mouse. A frequency conversion cabinet is generally used for motor starting and speed control, and it belongs to the category of control cabinets.
This post was last edited by Ku Liang Zhi Le on 2020-8-13 at 17:04. Distribution cabinet: The main function of a distribution cabinet is to distribute electrical loads. Various voltages need to be distributed to each branch as required; this must meet the power consumption requirements while also ensuring an even distribution. Distribution cabinets typically contain busbars, switching devices (circuit breakers), metering instruments, indicator instruments, protection devices, and more ； Power cabinet: A power cabinet is a cabinet that provides electrical power, and it is usually a subordinate cabinet to the distribution cabinet. It is generally a power supply cabinet for one (large) or several electrical devices. Typically, the cabinet contains power cables (busbars), disconnecting devices (circuit breakers), indicator instruments, protective devices, etc ； Control cabinet: As the name implies, it is a cabinet that serves a controlling function. The control cabinet usually contains the control devices for the machinery and equipment, including power supply circuits and control circuits (high-voltage and low-voltage). Typically, the cabinet contains power cables (buses), control circuit wiring, circuit breakers, control devices, communication interfaces (communication and programming interfaces), LCD screens, protection devices, and more ； Frequency conversion cabinet: A frequency conversion cabinet is a cabinet used to control frequency conversion equipment. It is the frequency conversion technology that is used to control the rotation speed or velocity of the equipment. It is a specialized cabinet.
Thank you for the answer! I understand completely; finally, I have a rough idea of it
I have a preliminary understanding; thanks for sharing